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Description
A 1:250,000-scale vector database of the Kenya Coastal Zone contains geographic, attribute, and textual data on marine life, fishing, aquaculture, vessels, and lighthouses. It was developed under the Eastern African Action Plan with collaboration from UNEP/GRID-PAC, UNEP/OCA-PAC, and KEMFRI. Primary data sources include Survey of Kenya maps, Landsat Thematic Mapper images, and socio-economic data from Kenyan government departments and institutes.
Use Cases
Analyze spatial distribution of fishing and aquaculture zones using polygon feature attributes.
Model vessel traffic patterns and port infrastructure using point and line features for lighthouses and vessels.
Assess marine habitat conservation areas by overlaying wildlife service data with other thematic layers.
Conduct coastal development impact studies by integrating socio-economic attribute data with geographic features.
Strengths
Database developed at a standardized 1:250,000 scale for consistent analysis.
Integrates data from multiple authoritative sources including Survey of Kenya, Kenya Wildlife Service, and Kenya Marine Fisheries Institute.
Features a systematic naming convention (e.g., KEELEVAT) for layer identification across multiple East African countries.
Limitations
Spatial accuracy has known errors up to 750 meters (3 mm on map) between specific map sheets like Voi and Kilifi.
The specific number of rows, columns, and total data volume is unknown.
Attribute completeness varies, as additional attributes for features are not consistent across all layers.
Provenance
Source
UNEP/GRID-PAC, UNEP/OCA-PAC, and KEMFRI, with primary data from Survey of Kenya, National Museums of Kenya, Kenya Ports Authority, and various Kenyan government departments.
Collection Method
Data derived from 1:250,000 scale paper maps, Landsat Thematic Mapper images, and socio-economic data; coverages were digitized and edgematched manually.
Geography
Kenya Coastal Zone, with a country code system extending to other East African nations like Tanzania, Mozambique, and Seychelles.
Uses a DOS-style naming convention for layers (e.g., KEELEVAT). Manual edgematching may introduce systematic spatial errors between specific map sheets. License terms are unknown.