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Friday, 28 December 2012

The Role of Geospatial Technology (GIS) in Actualizing Kenya’s Vision 2030

Posted on 21:56 by Unknown

The Kenya’s Development Blueprint (Vision 2030) was launched by H.E President Mwai Kibaki on 30th October 2006. It is a long-term development blueprint for the country, motivated by a collective aspiration for a much better society than the one we have today, by the year 2030. Its aim is to create a globally competitive and prosperous country with a high quality of life by 2030. It aims at transforming Kenya into “a newly-industrialising, middle income country providing a high quality of life to all its citizens in a clean and secure environment”. The vision was consultative and inclusive stakeholders’ process that involved international and local experts, ordinary Kenyans and stakeholders from all parts of the country. The Vision is anchored on three key pillars: Economic; Social; and Political Governance. The economic pillar aims to achieve an economic growth rate of 10 per cent per annum and sustaining the same till 2030 in order to generate more resources to address the millennium development goals. The social pillar seeks to create just, cohesive and equitable social development in a clean and secure environment. The political pillar aims to realise an issue-based, people-centred, result-oriented and accountable democratic system. The economic, social and political pillars of Kenya Vision 2030 will be anchored on the following foundations: macroeconomic stability; continuity in governance reforms; enhanced equity and wealth creation opportunities for the poor; infrastructure; energy; science, technology and innovation; land reform; human resources development; security; and public sector reforms.

Geographic Information System (GIS) is a special type of information system that is used to input, store, retrieve, process, analyze and visualize geospatial data and information in order to support decision making. It is essentially a spatial decision support tool. GIS is the merging of cartography, statistical analysis, and database technology. The ability to separate information in layers, and then combine it with other layers of information distinguishes GIS from other information systems and is the reason why GIS hold such great potential as research and decision-making tools. GIS are now used extensively in government, business, and research for a wide range of applications including environmental resource analysis, land use planning, location analysis, tax appraisal, utility and infrastructure planning, real estate analysis, marketing and demographic analysis, habitat studies, and archaeological analysis. It has been extensively used in natural resources management, facilities management, land management and in the management of street networks like address matching, locational analysis or site selection, development of evacuation plans.

The role of Geospatial Technology (GIS) in the Kenya Vision 2030 will be discussed basing on the three key pillars of the vision: Economic; Social; and Political Governance.

Economic pillar: Moving the Economy up the Value Chain.

The economic pillar aims to achieve an economic growth rate of 10 per cent per annum and sustaining the same till 2030 in order to generate more resources to address the millennium development goals. This ambitious goal is to be attained by having a dedicated campaign to alleviate existing constrains to the future growth, efficient use of our resources, formalization productivity and distribution will increase jobs, incomes and public revenues). GIS will play a big role in economic growth business growth is location based and GIS has proven to be very useful in asset management, suitability analysis, policy making and impact analysis, site selection and marketing. This is done by having GIS help select the best areas for business location, best economic development activity that’s most suitable for what regions and it also assists to determine the growth if any in business and the impact of this to the economy. A GIS is a tool for managing business information of any kind according to where it's located. You can keep track of where customers are, site businesses, target marketing campaigns, optimize sales territories, and model retail spending patterns.

Six key sectors have been identified to deliver the 10 per cent economic growth rate per annum envisaged under the economic pillar: tourism; agriculture; manufacturing; wholesale and retail trade; business process outsourcing; and financial services.

1. Tourism

Kenya aims to be one of the top ten long-haul tourist destinations in the world, offering a high-end, diverse, and distinctive visitor experience. This is to be done through; aggressively developing Kenya’s coast by establishing resort cities in two key locations; achieving higher tourist revenue yield by increasing the quality of service and charges in country’s premium safari parks, and by improving facilities in all under-utilised parks; creating new high value niche products (e.g. cultural, eco-sports and water-based tourism); attracting high-end international hotel chains; and investing in new conference facilities to boost business tourism.

Tourism is an activity highly dependent on environmental resources. It is also a phenomenon, which in the event of a lack of planning and management is likely to erode its environmental base. Hence, the strength of tourism planning can be enhanced by GIS applications. Geographical Information Systems can be regarded as providing a toolbox of techniques and technologies of wide applicability to the achievement of sustainable tourism development. Web based Geographic information systems provide ideal platforms for the convergence of tourist information and their analysis in relation to population settlements, surrounding social conditions, spatial characteristics, location and the natural environment. They are highly suitable for analyzing spatial data, revealing trends and interrelationships that would be more difficult to discover in tabular format. Moreover, GIS allows policy makers to easily visualize the problems, in relation to existing trends and the natural environment and so more effectively target resources. This application of GIS in tourism can have advantages both for tourists and for the tourism development authorities. The tourists will find, visualization of tourist sites through digital images or videos; valuable information on tourist locations; selective information like route planning, accommodation, cultural events and special attractions; easily accessible information over the internet;  and interactive maps that respond to user queries. The planning authorities will have great advantages in planning; database management; data updating; and planning for new site selections.

2. Agriculture.

Kenya aims to promote an innovative, commercially-oriented, and modern agricultural sector, through, transforming key institutions in agriculture and livestock to promote agricultural growth; increasing productivity of crops and livestock; introducing land use polices for better utilisation of high and medium potential lands; developing more irrigable areas in arid and semi-arid lands for both crops and livestock; and improving market access for our smallholders through better supply chain management. Vision 2030 aims at adding value to our farm and livestock products before they reach local and international markets.

GIS is used in a variety of agricultural applications such as managing crop yields, monitoring crop rotation techniques, and projecting soil loss for individual farms or entire agricultural regions. Balancing the inputs and outputs on a farm is fundamental to its success and profitability. The ability of GIS to analyze and visualize agricultural environments and workflows has proven to be very beneficial to those involved in the farming industry. From mobile GIS in the field to the scientific analysis of production data at the farm manager's office, GIS is playing an increasing role in agriculture production throughout the world by helping farmers increase production, reduce costs, and manage their land more efficiently. The use of GIS software will help forecast elements that may affect agricultural productivity. Identifying and understanding the changeable elements in land empowers one to create accurate forecasts, and plan for maximum productivity. It will also provide a clear map of all geographical data, thus the ability to discover efficiencies for effective land management.

3. Manufacturing.

Kenya aims to have a robust, diversified, and competitive manufacturing sector, through restructuring key local industries that use local raw materials but are currently uncompetitive, exploiting opportunities in value addition to local agricultural produce, and adding value to intermediate imports and capturing the “last step” of value addition. In addition to fabrication, assembly, and material control, manufacturing operations involve activities similar to transportation, pipeline/utility, and municipal organizations; thus manufacturing could benefit from the application of GIS to a large class of logistics and operations management functions. GIS is used in site selection, material control, scheduling, and store planning and operations. GIS is thus becoming an integral part of the decision making process for the manufacturers.

4. Wholesale and Retail Trade.

The vision is to raise earnings by giving the large informal sector opportunities to transform itself into part of the formal sector that is efficient, multi-tiered, diversified in product range and innovative. GIS is used to do inventory, organize, analyze and present economic development data to retain or attract companies into an area. It offers the benefits of traditional database and multimedia systems while adding powerful spatial, analytical, map publishing and data integration capabilities that releases Internet map servers that are used to strengthen this lead and thus offering information to people who have an interest in an area and this attracts companies into the area. Organizations can go beyond standard data analysis by using GIS tools to integrate, view, and analyze data using geography. GIS accelerates retail location/site selection by identifying a site of high demand potential. GIS has solutions designed to help companies identify, analyze, and prioritize the fresh and upcoming business prospects and optimize existing sales and marketing programs to enhance their profit potentials.
               
5. Business process outsourcing (BPO).

This is the provision of business services via internet to companies and organizations in developed world over the internet. We envision is to become the top off-shoring destination in Africa through attracting at least five major leading information technology (IT) suppliers, and at least ten large multinational companies and global BPO players to the country, and strengthening at least five local players to become local champions through stand-alone operations or joint ventures. GIS would provide tools for managing business information of any kind according to where it's located; will keep track of where customers are, site businesses, target marketing campaigns, optimize sales territories, and model retail spending patterns.

6. Financial Services.

He vision is to is to create a vibrant and globally competitive financial sector promoting high-levels of savings and financing for Kenya’s investment needs; and for Kenya to become a regional financial services centre. Financial services/banking is a competitive business; market share and brand recognition alone are not enough to attract and retain customers. To be more effective, many banks, credit card companies, credit unions, and other financial services organizations are turning to GIS to help them understand their data better than ever. GIS allows organizations to: enhance understanding of risk, customer interaction, and economic conditions using spatial models based on geography and geodemographics; improve profitability and operational performance by sharing knowledge-based decision making across departments; grow line-of-business collaboration across departments with economic forecasts, neighbourhood studies, and territory analysis; reduce business complexitythrough a more accurate analysis of real-world market conditions; and increase market understanding based on a single, common view of business performance using geoextended workflow and business processes.

Social Pillar: Investing in the People of Kenya.

In building a just and cohesive society, that enjoys equitable social development in a clean and secure environment, the quest will be on the basis of transformation in eight key social sectors, namely: Education and Training; Health; Water and Sanitation; the Environment; Housing and Urbanisation; Gender, Youth, Sports and Culture, and special provisions for Kenyans with various disabilities and previously marginalised communities; equity and poverty elimination; and Science, technology and innovations. GIS is becoming a routine analysis and display tool for spatial data that is used extensively in applications such as land-use mapping for urban planning purposes, demographic mapping that is used for facilities location, utilities infrastructure mapping that’s used for precise gas, water, and electric line mapping, and multiple applications in natural resource assessment among others and like all technologies, GIS co-evolves with the societies of which it is a part.

1. Education and training.

Kenya will provide a globally competitive and quality education, training and research; and aims to be a regional centre of research and development in new technologies. This is to be achieved by integrating early childhood into primary education, reforming the secondary curricula and strengthening partnerships with the private sector as well as rejuvenate the special needs education facilities and incorporate adult raining. This entails the creation of new school, recruitment of new teachers, and creation of a supply chain of computers to schools as well as assistance being offered to the schools in poor areas.

GIS is a multidisciplinary field that encompasses almost each and every aspect of life and thus should be introduced in the Kenyan education curriculum. This will aid in demystifying science and technology and creation of employment. Building of new schools entails planning and mapping of old schools to make sure that some areas don’t have more schools than they need at the expense of others and GIS can offer the best maps for both the existing and the expected school locations. GIS population versus schools or versus literacy level  mapping of the Kenyan society would assist the government come up with the best locations of these new schools, the number of teachers required in each of the schools, as well as the best areas to introduce the adult learning centres.

2. Health.

The country aims to provide an efficient integrated and high quality affordable health care system. Kenya also intends to become the regional provider of choice for highly-specialised health care, thus opening Kenya to “health tourism”. This will be achieved through, provision of a robust health infrastructure network countrywide; improving the quality of health service delivery to the highest standards; promotion of partnerships with the private sector; and providing access to those excluded from health care for financial or other reasons.

GIS plays a critical role in determining where and when to intervene, improving the quality of care, increasing accessibility of service, finding more cost-effective delivery modes, and preserving patient confidentiality while satisfying the needs of the research community for data accessibility. GIS has continued to be used in public health for epidemiological studies. By tracking the sources of diseases and the movements of contagions, agencies can respond more effectively to outbreaks of disease by identifying at-risk populations and targeting intervention. Public health uses of GIS include tracking child immunizations, conducting health policy research, and establishing service areas and districts. GIS provides a way to move data from the project level so that it can be used by the entire organization. Using GIS for demographic analysis to estimate the demand for various types of services can benefit individual physicians. GIS can enhance customer service for a health care provider, using, dynamic maps that show the location of services and making them readily available over the Web.

3. Water and Sanitation.

Kenya is a water-scarce country. The country aims to conserve water sources and enhance ways of harvesting and using rain and underground water. The 2030 vision for Water and Sanitation is to ensure that improved water and sanitation are available and accessible to all. This will be realised through specific strategies, such as raising the standards of the country’s overall water, resource management, storage and harvesting capability, rehabilitating the hydro-meteorological data gathering network, constructing multipurpose dams, and constructing water and sanitation facilities to support a growing urban and industrial population.

GIS is used to study drainage systems, assess groundwater, and visualize watersheds, and in many other hydrologic applications; this would greatly help determine the best areas to sink wells and the wells distribution in relation to the population in those areas; it will also help determine the best areas to irrigate and thus boost the agricultural production, access to water and sanitation.

 GIS is also used in the planning, engineering, operations, maintenance, finance, and administration functions of their water/wastewater networks. Thus plans like water supply networks, and the underground canal from Tana River to Garissa would be best planned, executed and managed using GIS which would help determine the best locations of these networks. Creation of dams is a task that requires determinations of dam locations and the lake size created by the dam; the best locations of these dams can be determined by GIS through mapping of soil structures.

4. The Environment.

Kenya aims to be a nation that has a clean, secure and sustainable environment by 2030. This will be achieved through: promoting environmental conservation to better support the economic pillar’s aspirations, improving pollution and waste management through the application of the right economic incentives, commissioning of public-private partnerships for improved efficiency in water and sanitation delivery, enhancing disaster preparedness in all disaster-prone areas and improving the capacity for adaptation to global climatic change.

GIS is used every day to help protect the environment; it is used to produce maps, inventory species, measure environmental impact, or trace pollutants. In the conservation and rehabilitation of our forest cover, GIS is essential as it will help it determining of the extent of destruction of the forests and thus come up with a proper plan on the conservation measures and mechanisms. Comparison of surfaces modelled by use of GIS at different times (years) would help curb further destructions and map out areas to be reclaimed back. Solid waste management can best be accomplished through the use of GIS; an example is the relocation of the Dandora dump site; an evaluation of the new dumping site in terms of environmental impact on the population is best done through GIS. Kenya depends highly on wildlife for her tourism industry; there is thus the need to map out the migratory routes of the wildlife to minimize the human-wildlife conflict; and even reclaim wildlife conservation areas.

5. Housing and Urbanisation.

The 2030 vision for housing and urbanisation is “an adequately and decently-housed nation in a sustainable environment.” This will be attained through: better development of and access to affordable and adequate housing, enhanced access to adequate finance for developers and buyers, pursuit of targeted key reforms to unlock the potential of the housing sector, and, initiation of a nationwide urban planning and development campaign, starting with Kenya’s major cities and towns. GIS is used to help visualize and plan the land use needs of cities, regions, or even national governments. Thus GIS would be used in the visualization and planning for new housing or upgrading of the existing housing schemes; it will also be extensively used in the planning and development of new metropolis like the upcoming Tatu and Konza cities. Land mapping through GIS will highly improve on the speed of service delivery and will eliminate the problems associated with unplanned development in the cities. Well planned cities/urban cities will result in well managed resources including housing for the urban populace.

6. Gender, Youth and Vulnerable groups.

The vision is to have gender equity in power and resource distribution, improved livelihoods for all vulnerable groups, and responsible, globally competitive and prosperous youth. Kenya also aims to capitalise on her international reputation as an “athletic superpower” by opening up the country for top global sports events, encouraged by corporate sponsorship. The Government will provide stricter enforcement of copyright laws in music and the performance arts, and provide facilities for the most talented musicians and actors. The country aims to be a competitive destination for global film producers. GIS should be used in population mapping in order to come up with a better formula for increasing participation of women in all economic, social and political decision making (an example in the increased number of female parliamentary representatives); this will also enhance the equitable distribution of the youth and female enterprise funds and the construction and distribution of social and economic amenities based on the population size. GIS will also be used in the financial management of the allocated funds in the administrative areas, reducing cases of embezzlement of public funds and biased allocation of funds.

7.Equity and poverty elimination.

The vision is to reduce the number of people living in poverty to a tiny proportion of the total population. Kenya is aiming to attain a society that guarantees equality of opportunity in accessing public services and providing income generating activities as widely as possible.  Kenya should learn from other countries who have embraced GIS in alleviating poverty; for example, the ecological dimension of poverty, watershed atlas, vulnerability atlas and mapping of the food insecurity in rural and urban India have been the efforts, closer to direct poverty mapping, in support of poverty alleviation process in the country. All these have been the products of information technology applications, especially remote sensing and GIS techniques. There is thus the need for mapping of the current poverty distribution in the country which can be done using GIS and from this map the government can place citizens at a level of income sufficient to cater for basic requirements of a healthy, productive life to regions where they do not exist currently. This would go a big way into assisting reduce inequalities across the economic and social initiatives proposed by vision 2030.

8. Science, technology and innovations.

Vision 2030 will be based on the creation of international competitiveness through more efficient productivity at the firm and household level with the government support. In order to achieve this there is need for more efficient improvement of social welfare, education curricula and specialized research centres, universities as well as business firms and agriculture. There is need for the country to come up with policies and centres whose sole responsibility is to instil the culture of science, technology and innovation to our populace in order to attain the standards in the aspirations of the Vision 2030. There will be no development if technology is put aside as we try to meet the goals. GIS, being a multidisciplinary application, will greatly aid in the goals. Each and every development carried out, for instance, transport networks, housing, urban and regional planning, poverty mapping, expansion and diversification of education, crime mapping, resource management, asset management and location planning, public health planning and disease surveillance, and expansion of social amenities, has a spatial concept and only systems with spatial capabilities (GIS), are best suited to handle the applications.

Political Pillar: Moving to the Future as One Nation.

The political pillar aims to realise an issue-based, people-centred, result-oriented and accountable democratic system. The transformation of the country’s political governance system under Vision 2030 will take place across five strategic areas: rule of law; electoral and political processes; democracy and public service delivery; transparency and accountability; and security, peace building and conflict management.

1. Rule of Law.

The vision is “adherence to the rule of law as applicable to a modern, market-based economy in a human rights-respecting state”. As our legal systems embrace the use of technology in their operations, GIS will come in handy in cases of mapping the locations of the judicial installations for ease access by the populace, crime mapping and compliance of the law. An instance is the mapping of tax compliance amongst property owners in an urban area and traffic offenders.

2. Electoral and political processes.

The 2030 Vision seeks to cultivate “genuinely competitive and issue-based politics”. Specific strategies will involve, introducing laws and regulations covering political parties, enhancing the legal and regulatory framework covering the electoral process, and conducting civic education programmes to widen knowledge and participation among citizens, leading to an informed and active citizenry. The role of GIS will be in the mapping of political hooliganism ‘hotspots’, electoral boundaries, political parties’ popularity within the country, level of political awareness in different location of the country, and the level of civic education required per region. It will also help in the improvement of voter tally reporting and recording to real time and thus reduce the cases of results manipulation.

3. Democracy and public service delivery.

The aim is to create “a people-centred and politically-engaged open society”. Geographic information systems provide unparalleled power to examine social, economic, and political circumstances. It can be used to come up with databases that are accessible to the public with information on the all that appertains to the governed and the governors with reference to their geographical locations, basic rights and legalities, and public amenities. This will open up the populace to the areas/sectors neglected by the government in service provision and thus help in addressing the governance issues.

4. Transparency and accountability.

The vision is to have transparent, accountable, ethical and results-oriented government institutions. This will be attained through strengthening the legal framework for anti-corruption, ethics and integrity, promoting results-based management within the public service, encouraging public access to information and data,  introducing civilian oversight around the key legal, justice and security institutions, and strengthening parliament’s legislative oversight capacity. GIS will be used in the creation of databases with information on all areas of operations in government services to the populace; making the databases accessible will improve transparency and accountability. Through the interfaces, the citizenry will have a forum for participating in governance and administration. With the era of government transparency and accountability, there is need for showing not only the way government is spending money but also where money is being allocated. Maps help us describe conditions, situations, and help tell stories, often related to one’s own understanding of content.  Using maps helps citizens quickly visualize and understand what the government is doing in the areas that are important to them. GIS can be used as an effective tool in responding to the increasing demand for government transparency; it has promoted the concept that online mapping and open access to geospatial data could create a more open and transparent government. Through Web GIS, the government can deliver information with more context and citizens will be able to visualize and understand the implications of various government economic activities.
               
5. Security, peace building and conflict management.

Vision 2030 aims at “security of all persons and property throughout the Republic”. This will be achieved through: promoting public-private cooperation and civilian/community involvement for improved safety and security, deepening policy, legal and institutional reform for improved enforcement of law and order, promoting national and inter-community dialogue in order to build harmony among ethnic, racial and other interest groups, promoting peace building and reconciliation to improve conflict management and ensure sustained peace within the country, and, inculcating a culture of respect for the sanctity of human life that does not resort to the use of violence as an instrument of resolving personal and community disputes. This should start with the family, schools, the church and all public institutions. GIS data and analysis are used for boundary delimitation and demarcation, field mission planning and operations, humanitarian intervention, logistics, resource allocation, and critical analysis and visualization for situational awareness and security. Through the use of mapping applications, the government will be able to solve problems on boundary conflicts; this will enhance peaceful coexistence amongst communities. The security arms of the government will benefit greatly if GIS was incorporated into their operations: Inventory of location of police stations, crimes, arrests, convicted perpetrators, and victims; plotting police beats and patrol car routing; alarm and security system locations, location of key emergency exit routes, their traffic flow capacity and critical danger points.

Which way?

GIS, being a multidisciplinary science, integrates so well in all aspects in focus in the vision 2030. Its application would foster a faster realisation of the goals, while offering a platform for the analysis of the progress against set targets, with options on continued review of the targets while ensuring set standards are met.  Each and every component in the vision has a geographic component; be it designing new roads, rail routes, new urban settlements, new businesses, emergency evacuation routes, climatic conditions suitable for a certain agricultural activity, location and distribution of schools and social amenities or the right soil type for a certain crop; it is thus imperative that the government impresses GIS as it is best suited to deal with data with a spatial component. GIS will also aid in a faster decision making as it eliminates the manual processes in many tasks, for instance, map making, and will increase the pool of the populace able to use and interpret geographic data.

Despite the various GIS applications available for use, there are still many challenges preventing the uptake of the technology in our processes. This may explain why it might take a long time before the technology is fully incorporated into our government plans. The bureaucratic policy in government procurement coupled with the lack of will to embrace the technology, are a great hindrance in the acquisition of the hardware and software necessary to implement the GIS applications. The cost of the software is also a hindrance; the GIS software houses have placed a massive price tag to the software, thus hindering individual take up of the applications. The government is also reluctant to invest and fund the individuals or corporations interested in the GIS uptake. Since data constitutes a great deal in GIS, the limited shared databases in the country make it even more expensive to acquire data. There is also a limited number of individual in the country trained to be able to use the technology; this is because our current education system has not incorporated GIS in the curriculum as other countries, like Rwanda, have done.

In conclusion, GIS is vital in the actualisation of the vision 2030; it will be a great boost as it integrates easily into any aspect of the key three pillars of the dream. There is thus need to introduce GIS as a subject in our education curriculum, starting at the basic primary level of education. This is possible as other countries, like Rwanda, have successfully integrated GIS in their education curriculum. This will result in a populace that not only embraces GIS, but is well versed with it and thus increased development.
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Monday, 24 December 2012

The current geodetic reference system in Kenya

Posted on 10:38 by Unknown
The Department of Surveys is the official agency of the government of Kenya on all matters affecting land surveys and mapping. Its’ main functions are:-
  • To provide and maintain plans for property boundaries in support of the Land Registration throughout the country.
  • To provide all kinds of topographical and thematic maps in both rural and urban areas of the country for use by other Government Departments and the general public.
The department has been in existence since 1903.   
The current geodetic network in Kenya was established during the colonial times by the British. Since 1892, several major triangulation networks have been observed and computed by various organisations for specific purposes. Each organisation thus chose the coordinate system that appeared suitable resulting in a number of different systems. For each sizeable network, the readily available datum was used resulting in many datums for both planimetric and height control.
Doppler observations were carried out by the survey of Kenya between 1972 and 1973. The aim of the exercise was to:
  • Evaluate the accuracy of the primary controls in Kenya;
  • Provide geodetic control in remote and un-surveyed areas in the country;
  • Strengthen the triangulation with precise position at optimum spacing;
  • Contribute to the development of a single well fitting datum for the African continent.
The ITT 5500 equipment was used. Doppler positioning using precise ephemeris fixed fifteen stations distributed over the country.
The current geodetic network in Kenya is based on the 1960 Arc Datum. The coordinates are in UTM. There the two main reference ellipsoids used in Kenya are Clarke 1858 and Clarke 1880.
The datum for all heights in Kenya is the mean sea level referred to a tide gauge at Kilindini harbour in Mombasa. This gauge has however been submerged and a new one constructed and connected to some fundamental bench marks. By the year 2000, 3570km had been precisely levelled, the last 70km having been carried out by the Kenya Institute of Surveying and Mapping between 1992 to 1993.
There are three coordinates systems that have been used in Kenya:
  • The Cassini-Soldner coordinate system;
  • The east African war system; and
  • The UTM coordinate system.
Before 1950, nearly all triangulation networks were based on the Cassini-Soldner coordinate system; hence the cadastral surveys in Kenya were also based on this system.
The east African war system of coordinates was introduced as a military system for east Africa. Its main aim was to unify the coordinate system for the British Commonwealth territories in the south, east and central Africa to avoid discontinuity in topographical mapping and grid references across territorial boundaries. The coordinates in this system have since been converted to UTM system.
The UTM system was introduced in Kenya in 1950 by the directorate of overseas survey (D.O.S), when it began providing survey work in Kenya. The system used Clarke 1880 spheroid; the unit of measurement was the international metre. The survey of Kenya has made an effort to convert all points to this coordinate system.
Problems experienced with the current geodetic network
Some of the problems that have been experienced through the continued use of the current geodetic network include:
  • The existence of different coordinate systems has caused the need for regular coordinate conversion especially from Cassini to UTM system of coordinates;
  • Pillars located at hills have been difficult to access and many have been destroyed; the network is also low;
  • Lack of suitable points to base the transformation especially from Cassini to UTM;
  • Lack of information or data from previous work as the records of surveys carried before 1950 are not readily available;
  • Height data has been found not consistent having been derived from different datums;
  • Equipment used earlier had lower level of precision and the network is generally weak;
  • Hydrographical charts are not fully developed due to lack of controls near the Indian ocean, and around the lakes;
  • Points established by space techniques are relatively few;
  • Re-establishment of destroyed pillars has not been carried out fully due to high cost of classical triangulation method.
Minimizing the current problems of geodetic network
There is continued effort to solve the problems resulting from the current geodetic network. This has primarily been done using the Global Positioning Service (GPS).
Since August, 1996, Kenya Institute of Surveying and Mapping (KISM), under the mini-project has been carrying out GPS surveys on first order triangulation pillars in an attempt to establish transformation parameters between the WGS 84 ellipsoid and Clarke reference ellipsoid used in East Africa. The work is still ongoing but is experiencing problems due to lack of funds.
The Survey of Kenya is in the process of establishing continuous GPS observation stations in Kenya. The following table indicates the ongoing phase one construction of the continuous GPS observation stations:
FID
SHAPE
NAME OF COS LOCATION
SOC
REMARKS
1.
Point
LOKITAUNG
KEN
 
2.
Point
MOYALE
KEN
 
3.
Point
LODWAR
KEN
COMPLETED
4.
Point
MARSARBIT
KEN
STARTS IN 2 WEEKS
5.
Point
MERU
KEN
COMPLETED
6.
Point
MANDERA
KEN
 
7.
Point
WAJIR
KEN
 
8.
Point
GARISSA
KEN
COMPLETED
9.
Point
BONDO
KEN
COMPLETED
10.
Point
LIBOI
KEN
 
11.
Point
HABASWENI
KEN
 
12.
Point
LOKICHOGIO
KEN
 
13.
Point
SABAREI
KEN
 
14.
Point
RCMRD
KEN
COMPLETED
15.
Point
MALINDI
KEN
 
16.
Point
KANZIKU
KEN
 
17.
Point
EL WAK
KEN
 
18.
Point
MARALAL
KEN
STARTS IN 2 WEEKS
19.
Point
KAPENGURIA
KEN
 
20.
Point
KILGORIS
KEN
 
21.
Point
KAJIADO
KEN
 
22.
Point
WUNDANYI
KEN
COMPLETED
23.
Point
KWALE
KEN
COMPLETED
24.
Point
MALINDI
KEN
COMPLETED
25.
Point
ERDAMA RAVINE
KEN
COMPLETED
Level 1 or Phase 1 comprises of 25 stations of zero order accuracy with nine stations completed.
Level 2 or phase two comprise of 72 stations, first order accuracy, to be done later.
Level 3 or phase 3 comprise of 125 stations, 2nd order accuracy, to be done later
Others include 3rd and 4th order types of which they are numerous in number although most of the points in this category are distributed mostly in urban areas with minimal or random distribution in the rural areas.
The locations of some Stations were changed as shown in the table below.
No.
ORIGINAL LOCATION
NEW LOCATION
1.
SHIMONI
KWALE
2.
VOI
WUNDANYI
3.
ASEMBO
BONDO
4.
PARSELOI
MARALAL
5.
KAPENGURIA
KANYARKWAT
                                       
Dimensions
Base plate is 2.5mx2.5m at 1.0 m deep
Column is 0.6mx0.6m at 2.7m deep on the ground.
Existence of IGS stations
There are two continuous GPS observation stations connected to the IGS (International Geodynamic GPS Services) stations; one is in Malindi and the other in KISM (Kenya institute of Surveying and Mapping). The station at KISM is currently not working. The data from these continuous recording stations are used for the computations of the baselines and eventual coordination of all other points.
 Conclusion
The problems exhibited by the current geodetic network in Kenya can be solved through the integration of GIS and GPS in all mapping aspects of the country. There is need for political will and financing of the Survey of Kenya in its efforts to carry out GPS observation stations through out the country. There is also the need for the government to source from the British, the early records of their geodetic surveys carried out in Kenya during the colonial times; this will greatly enhance the efforts of Survey of Kenya in trying to update the current geodetic network. The continuous IGS observation station at KISM needs to be restored to full functionality to complement the one operating in Malindi.
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Spatial Data Infrastructure in North Africa

Posted on 10:35 by Unknown
The term Spatial Data Infrastructure (SDI) refers to a collection of fundamental geospatial technologies, policies and institutional arrangements that encourages and improves the availability, access and exploitation of spatial data.  An SDI provides a framework for spatial data discovery, evaluation, and application for users and providers within all levels of government, the commercial as well as the non-profit sector, academia and individuals in civil society. SDIs comprise the main components of the wider information infrastructure of a nation or government, that is, agreed information standards, a requirement to create and publish metadata meeting these standards, and agreed policies on access to and reuse of spatial data, taking full account of current national practice regarding such policies.  SDIs can theoretically be developed at different scales and extents, for instance, at the largest scale a global SDI advances international cooperation between nations by facilitating data availability and accessibility through multi-lateral agreements on guiding principles.  On a smaller scale, any geographical unit defined by governments (districts, provinces, et cetera) having a common governance interest supported by a framework of fundamental spatial information could be considered an SDI.

In Africa, many countries have not been systematically mapped and only a few have maps covering their entire territory that can be adequately used for national development purposes. Generally, these maps and the associated data have been collected for the implementation of various development projects. However, this data often satisfies only the minimum requirement of the particular project and the data collection is done in a sporadic and uncoordinated manner with no intention of maintaining it. As a result the data generally become obsolete after the completion of the project and is often not accessible for purposes other than that of the project. This situation is negatively impacting upon effective decision making and development planning in Africa.
LIBYA
GPC group, a group of companies that provide geospatial consulting services and solutions globally, led an international team of consultants in the planning, design and initial implementation of the Libya Spatial Data Infrastructure (LSDI) initiative.  The LSDI was initiated formally in April 2006. The program was launched as a multiagency, collaborative process being coordinated by the Libyan Post, Telecommunications, and Information Technology Company (LPTIC), and under the leadership and guidance of the Chairman and the Chairman Advisory Committee. The first phase of the program is now complete, thanks to the cooperation and hard work of representative from the 17 government and institutional entities that have been most directly involved in this foundation building stage. With the successful completion of Phase 1, the LSDI program is now ready to move to the next stage of development to build towards a comprehensive national geospatial database network, to broaden the community of involved stakeholders, and to institutionalize information maintenance and sharing procedures across the government.
ALGERIA
Definition and promotion of a national GI policy is lead by The National Council of Geographic Information (NCGI). Created in 1996, the NCGI constitutes a framework of dialogue for the activities relating to GI in Algeria. It is this Council who aims to integrate GI policy with the Algerian developments in Information Society activities, including activities relating to their NSDI. In terms of developing Algeria’s national GI capacity, the NCGI has engaged studies articulated around several features. Firstly, the production of GI has been explored in terms of standards, the amounts of information needed and the rate at which localised data is being used to cover the national territory. They have also been trying to determine what support structures would be needed to increase their capacity and what expertise exists in the Algeria. This has occurred alongside an examination of the operational means for the production of geographic information. The public sector has had a specific role in this capacity building activity, alongside the creation of the NCGI. Their activities have included workshops and seminars to show the importance of Geographic Information to the wider community; a space program which aims to partly produce large scale cartography. In contrast, the private sector activity is limited to selling GI software and hardware. In some senses, Algeria lacks strengths in the development and implementation of GI, with particular weaknesses in their GI Association, communication and education and no involvement with European policies and legal frameworks. The public institutions are felt to be making significant progress but it is the private sector, in particular, who are seen as supplying the necessary communication, coordination, education and awareness of GI to other sectors. The most ‘satisfactory’ developments have occurred in terms of governmental activities, in relation to regulatory and legal frameworks and public administration, with the provision of GI and their NSDI and financial resources also seen as adequate. Understanding such developments have to be seen in the context of international cooperation, with neighbouring countries and beyond. Algeria participates in a number of GI activities with their North African partners. In terms of cartographic and reference functions, Algeria plays a role in the Regional Centre of Remote Sensing of North Africa States and the Regional and African space geodesy project, which will help to define a new geodetic reference system in co-operation with the International Association of Geodesy. They are also active in the Regional Information Centre for Spatial Science and Technologies which provides a research role in the region. There is also activity in environmental matters and monitoring desertification in the region has included participation in the Sahara and Sahel Observatory. Finally, they are also member of the Information Committee for Development, which is related to the Economic Commission for Africa and provides a base for development for Algeria and her neighbours.
EGYPT
Although some data in Egypt exist in digital form, most organizations are still keeping their data as paper maps. Digital data are not available and even analogue data are not widely accessible. Although the description of metadata is an important aspect in developed countries, it is almost ignored in Egypt. Most spatial data is still not documented. Moreover, obtaining data from organizations is restricted by unnecessary formalities. For example, because the digitization of topographic maps is not allowed, the users are moving to illegal digitization.
SDI in Egypt is still immature with many bottlenecks yet to be resolved, such as poor of partnerships, lack of digital data and metadata availability, lack of clear institutional framework, absence of an access and sharing mechanism to search desired data, and lack of national standards. These drawbacks will demand a lot of effort and requires coordination from different organizations to solve them. As of 29th June 2010, there had been developed a portal for spatial data, Egyptian spatial Data Infrastructure portal. This was to be run by the Egyptian Geography Network which is a national network of geographic information users and providers. The portal and all the links on the page, however, are not accessible, as the site was last updated on 29th June 2010.
The role of the Egyptian Survey Authority (ESA)
ESA is a governmental organization responsible of the cadastre services, topographic services and maintain the geodetic network in Egypt, besides other services. ESA has its own standards for all steps in producing maps. It also has all the assets of the maps produced by ESA or by other organizations, so all geospatial data are in its own warehouse. It has produced their metadata for the topographic maps with its different scales. It also made the cadastral catalogue for the 26 government units. There is also the digital catalogue which gives information about all digital maps covered by the topographic sector or the cadastral sector. The topographic and digital catalogue is available at ESA shop. ESA is building its own clearing house to publish their metadata over it. This is the first step in introducing their market for the services and products over the clearing house.
MOROCCO
Several departments are users of spatial data, mostly as hard copy, but increasingly, in a digital format. The two most significant organisations with respect to the creation, management and distribution of digital spatial data at a national level are the Administration of Land Conservation, the Cadastre and of Cartography and the Royal Centre for Remote Sensing (CRTS). Other departments involved in the creation of base digital spatial data are the Geology Directorate and the Statistics Directorate. The limited involvement of the private sector focuses largely on the development of specific applications.
The Department of the Prime Minister is creating a National council for Geographic Information (CNIG) that will develop the digital geographic information sector and put in place an institutional framework for the coordination of exchange procedures and the dissemination of digital spatial data. Currently the National Council for Cartography deals with aspects relating to mapping, while the National Council for Remote Sensing has recorded information concerning existent programs and base data developed by different departments. Both these committees’ research users’ needs and initiate programs in response to these needs.
Each institution is responsible for dissemination the data it produces. The CRTS provides information on the availability of digital spatial data and how data may be accessed through its website, www.crts.gov.ma. A further project underway is the archiving and access system for digital data, which became operational in September 2000. A study is underway regarding metadata and procedures for access and utilisation of digital spatial data. There is an awareness of the role that the availability of metadata can play in minimising duplication in data capture and ensuring appropriate use of existing data. While standards in general are addressed by a component within the Ministry of Commerce and Industry, which by and large adopts international standards, it is anticipated that the CNIG will form a working group to deal specifically with digital spatial data.
TUNISIA
Natural Resources Canada (NRCan) has been cooperating with the Tunisian government by providing technology transfers to assist in designing a national infrastructure for digital geographical data. Tunisian national geomatics program (GEONAT) website was officially launched on 26th April 2005. GEONAT is a national geomatics program that will provide Tunisia with a geospatial data infrastructure, making geomatics an important economic lever and establishes it as an activity that contributes to sustainable development. The website, http://www.geonat.gov.tn/export/intproj/tunisia/index_en.html, is still under construction.
As of 2008, Tunisia had initiated SDI development through legislation. Projects are on going to implement geographical databases alongside the creation of Geographical Repository and Spatial Data Warehouse especially in national organizations such as Agriculture and Environment. This will provide the framework for a Federated Research Project called the Global Information System Relative to the Air, the Earth and the Sea. The principal objective of this project is to offer the participants access to accurate and up-to-date data within the framework of Spatial Data Warehouse. The adopted steps consists of creation of National
Director of Geomatics office whose mandate is the identification geomatics programs and actions that should be concretised in the short and medium terms within the framework of implementing an information infrastructure as an important engine for socio-economic in the country.
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Challenges a developing country like Kenya faces in implementing web based mapping

Posted on 10:33 by Unknown
1. Data limitations
This is a problem that has faced GIS (geospatial technology and resources) users for decades in both developed and developing nations. Finding the money to collect new data and to convert paper maps and data into digital format continues to be a problem. In many cases digital data do exist, but there are issues of  confidentiality, national security, etc.
A near national coverage only exists at the scale range of 1:200000 or 1:250000. At 1:50 000, about two-thirds of the land area is covered and at 1:25 000 less than one-third. The coverage at these scales is in analogue form, but is subject to progress in vectorization or at least in raster scanning. No data surveys exist at large scales especially Kenya’s rural areas.
Based on data requirements, general and specialized GIS systems have to be designed for a variety of purposes including:
• for environmental management and conservation.
• for defence and intelligence purposes.
• for governmental administration.
• for resource management in agriculture and forestry.
• for geophysical exploration.
• for cadastral management.
• for telecommunications.
• for utility management.
• for business applications.
• for construction projects.
Many of these applications require common base data. It will be the purpose of an administrative authority to create a spatial data infrastructure by which the base data may easily be exchanged.
of specific interest may be added
3D-vector data for instance can be obtained directly by terrestrial survey equipment such as:
• theodolites.
• electronic tacheometers.
• levelling instruments.
• GPS receivers.
• mobile mapping systems.
3D information from aerial photographs may be compiled by analogue or analytical plotters or by digital photogrammetric workstations which are very few and very costly for an effective digital database creation for the public at least.

2.      Availability of Geoportals
The need to have organized Geoportals is an essential requirement for an effective web based mapping and GIS as a whole. A number of companies like Ramani communications now act as data warehouses providing limited spatial data to potential customers. In some cases the companies do not actually produce the data themselves, but provide easy access to a catalogue of spatial data products produced by others. Some Geoportals provide attribute and spatial data free, and make their money by selling advertising. For collaborative usage of data for instance in the areas shown below will require documented Geoportals for web usage of the same in other departments.

 3.      Networking Issues
Network and communication issues involving spatial data is a major overhead in developing countries trying to implement web based GIS. GIS applications require a significant amount of resources on the desktop and with respect to network performance. By its nature a GIS allows a user to have access to and analyze large amounts of data and present the results in a graphical format. Access to these data for real-time display and analysis puts large demands on network communications in terms of costs. Data must be transported across the network to where the desktop application is executed to display the information in an efficient manner. The concept behind networking and the issues that must be considered when planning a network can be summarized into the following categories:
◆ The type of communication that will be used
◆ Local area network (LAN) versus wide area network (WAN) considerations
◆ The speed of the component hubs, switches, routers and network interface cards (NICs)
◆ The operating system and software that are running on the servers
◆ Whether or not a file server- or client server-based architecture will be used
◆ Whether a centralized or decentralized servers will be adopted
◆ Whether or not to use replication when there are multiple servers
All these issues necessitate a huge financial input which many African countries lack. Network GIS can use the cross-platform Web browser to host the viewer user interface. Currently, clients are typically very thin, often with simple display and query capabilities, although there is an increasing trend for them to become more functionally rich.

4.      Ownership of Geographic Information system
There are two ways to look at ownership: within and outside the organization. Ownership of the data inside the organization is something the organization  like Ramani can control; ownership when viewed from the outside the organization can be more complex. For example, is the Survey of Kenya to own the web based GIS or who should bear the greatest responsibility in terms of control. If the GIS was to be liberalized then various organizations can design the process, make decisions about control and accountability for each layer, set of features in their databases, and tables in the databases. These issues arise as it becomes clear to different units of the organization and country that data they previously regarded as their domain are going to be more easily shared and seen by other users. It is no secret that control of information is about power within the set-up, so the introduction of a new way or organizing and sharing that information—the new GIS—will disrupt the existing lines of power within the organizations and government. A thorny issue comes  when the questions about whose budget will be supporting the GIS arise.

5.      User Roles
If the GIS is going to support the activities of multiple units within a ministry, department or any other, a basic assumption is that these units/ departments all have a stake in how the ownership is arranged. Sometimes, in state and local government, there are legal restrictions on who may or may not make certain modifications to the data, and
these certainly must be considered. People interact with relational databases through sets of defined roles and privileges. Roles and people are not the same type of thing because one person may, at different times, have several roles.

6.      GIS Software
GIS software is the processing engine and a vital component of an operational GIS. It is made up of integrated collections of computer programs that implement geographic processing functions. The three key parts of any GIS software system are the user interface, the tools (functions), and the data manager. All three parts may be located on a single computer or they may be spread over multiple machines in a departmental or enterprise configuration.Four main types of computer system architecture configurations are used to build operational GIS implementations: desktop, client-server, centralized desktop, and centralized server. There are many different types of GIS software categorized into desktop, server (including Internet), developer, hand-held, and others. The most used GIS software typically originates from the United States or Europe. In some cases this results in problems getting copies of the software as well as getting support for the software, particularly if the problem cannot be solved via telephone or email. The market leading commercial GIS software vendors are ESRI, Intergraph, Autodesk, and GE Energy.
Alternative distribution models that are becoming increasingly prevalent include shareware (usually intended for sale after a trial period), liteware (shareware with some capabilities disabled), freeware (free software but with copyright restrictions), public domain software (free with no restrictions), and open source software (where the source code is provided and users agree not to limit the distribution of improvements).
Professional softwares are very expensive to buy and maintain. The term ‘professional’ relates to the full-featured nature of this subcategory of software. The distinctive features of professional GIS include data collection and editing, database administration, advanced geoprocessing and analysis, and other specialist tools. Professional GIS offer a superset of the capabilities of the systems .

7.      Lack of adequate Hardware components
The hardware of a GIS is composed of:
• input devices.
• processing and storage devices.
• output devices
Digital data input depends on the type of data to be utilized. Imagery input is possible from analogue images through the use of image scanners. Digital airborne and space-borne systems already use charge-coupled device CCD-sensors to supply the data in digital form.

 8. Graphic standards
The purpose of any GIS application is to provide information to support planning and management. As this information is intended to reduce uncertainty in decision-making, any errors and uncertainties in spatial databases and GIS output products may have practical, financial and even legal implications for the user. For these reasons, those involved in the acquisition and processing of spatial data should be able to assess the quality of the base data and the derived information products.

Most spatial data are collected and held by individual, specialized organizations. Some ‘base’ data are generally the responsibility of the various governmental agencies, such as the National Mapping Agency, which has the mandate to collect topographic data for the entire country following pre-set standards. These organizations are, however, not the only sources of spatial data. Agencies such as geological surveys, energy supply companies, local government departments, and many others, all maintain spatial data for their own particular purposes. If this data is to be shared among different users, these users need to know not only what data exists, where and in what format it is held, but also whether the data meets their particular quality requirements. This ‘data about data’ is known as metadata.
The International Standards Organization (ISO) considers quality to be “the totality of characteristics of a product that bear on its ability to satisfy a stated and implied need” (Godwin, 1999). The extent to which errors and other shortcomings of a data set affect decision making depends on the purpose for which the data is to be used. For this reason, quality is often define as ‘fitness for use’.
Traditionally, errors and accuracy in paper maps are considered in terms of
1. attribute errors in the classification or labelling of features, and
2. errors in the location, or height of features, known as the positional error.
There is therefore need to define the following concerning geo data for usage on the internet and the body to define them is not yet defined.
Attribute accuracy
Temporal accuracy
Lineage
Completeness
Logical consistency
Managing access to geodata may present a considerably more difficult challenge for Kenya in trying to implement web based GIS. There is a long history of disagreement on the issue of geodata sharing both within the country and in the rest of east Africa. No two countries have quite the same policies and procedures for the use of geodata, and there is no settled and accepted law or custom on this matter. Intellectual property rights, ownership, the right to change or modify the geodata, the means of paying for use, the appropriate charges, the control of who can access the data and for what purpose, permission for a user to modify the geodata, permission to resell the geodata, the means of access, the extent of the user community, and many other concerns are resolved in different ways by different organizations that own or maintain digital geodata.

9.      Lack of qualified staff
This is the issue that most frequently mentioned in the field of GIS. The fact that GIS is a relatively new technology means that staff with GIS training and skills are in high demand and beyond the reach of most existing departmental budgets in retraining.
The people to use these systems are typically technically literate and think of themselves as GIS professionals (career GIS staff) with degrees and, in many cases, advanced degrees in GIS or related disciplines.

  1. Corruption
This is the main hindrance and the effects are well manifested in all sectors of the economies of the developing world.
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