45dab4ab-0269-4211-99aa-bef2a5516896 1c86a15e-97ba-4b41-8213-a93581888333 Ursula Geßner ursula.gessner@dlr.de 2021-03-18T16:55:01 ISO 19115:2003/19139 1.0 5724 9116 false EPSG:4326 Land Cover of West Africa, 250m resolution, 2006 2015-04-01 Land use/cover classification of West Africa based on multi-sensor earth observation data. The regional land cover/use map for West Africa has a spatial resolution of 250 m. It is based on earth observation data from three optical and radar sensors. Annual time series of the optical Moderate Resolution Imaging Spectroradiometer (MODIS) are used for discriminating semi-natural vegetation classes and agricultural classes. Envisat Advanced Synthetic Aperture Radar (ASAR) Wide Swath (WS) time series, in combination with MODIS data, are used for delineating permanent and seasonal water bodies. Built-up areas of two density classes are mapped based on radar imagery collected by the satellites TanDEM-X and TerraSAR-X. The accuracy assessment of the multi-sensor land cover map yields an overall accuracy of 80% at legend level 1 (9 classes) and 73% at the more detailed legend level 2 (14 classes). For further details on the mapping approach and a discussion of strengths and limitations on the approach and dataset, we refer to the following publication: Gessner, Ursula; Machwitz, Miriam; Esch, Thomas; Tillack, Adina; Naeimi, Vahid; Kuenzer, Claudia; Dech, Stefan (2015): Multi-sensor mapping of West African land cover using MODIS, ASAR and TanDEM-X/TerraSAR-X data. Remote Sensing of Environment, accepted. The layer is provided by the WASCAL Core Research Program (Work package 1.3: Land Surface & Regional Climate) for scientific analysis, modeling and policy advice purposes. For further information see www.wascal.org. Gessner, Ursula; Machwitz, Miriam; Esch, Thomas; Tillack, Adina; Naeimi, Vahid; Kuenzer, Claudia; Dech, Stefan (2015): Multi-sensor mapping of West African land cover using MODIS, ASAR and TanDEM-X/TerraSAR-X data. Remote Sensing of Environment 129, 90-102, http://dx.doi.org/10.1016/j.rse.2015.03.029 Ursula Gessner DLR - Deutsches Fernerkundungsdatenzentrum Senior Researcher +49 8153 28-1250 +49 8153 28-1445 Oberpfaffenhofen Weßling 82234 Germany ursula.gessner@dlr.de http://www.dlr.de/eoc WWW:LINK-1.0-http--link Homepage of DLR Earth Observation Center https://wascal-dataportal.org/geonetwork/srv/eng/resources.get?uuid=45dab4ab-0269-4211-99aa-bef2a5516896&fname=land_cover_west_africa.PNG large_thumbnail PNG land cover remote sensing classification land use GEMET - Concepts, version 2.4 2010-01-13 geonetwork.thesaurus.external.theme.gemet MODIS ASAR TerraSAR-X Western Africa Region 2006-09-22 geonetwork.thesaurus.external.place.regions Download only allowed to registered members of WASCAL, including Graduate Studies Program, CoC staff members, and partners of affiliated research programs as far as authorized by the WASCAL headquarter. Account in the Data Portal is required for download. Use restricions are: - The Data must not be re-distributed to unauthorized persons; - The Data can be copied and processed to create derivations by the authorized persons; - If publication results from using the Data or its derivations, the user agrees to cite the Originator and/or give credit to the Originator, or, as scientifically appropriate, provide co-authorship to the Originator based on any direct contribution s/he may make to the research. Citation of the Originator Gessner, U. (2015): Land Cover of West Africa, 250m resolution, 2006. https://wascal-dataportal.org/geonetwork/?uuid=45dab4ab-0269-4211-99aa-bef2a5516896 250 eng geoscientificInformation -8.00 7.20 3.00 12.00 2006-01-01 2006-12-31 1 Parameter: Land cover Details on classification method, legend, accuracy and known issues can be found in the publication in Remote sensing of Environment, as indicated under "online resources". GeoTIFF 1.0 Ursula Gessner ursula.gessner@dlr.de Please contact distributor by e-mail for accessing the data. https://wascal-dataportal.org/geonetwork/srv/eng/file.disclaimer?uuid=45dab4ab-0269-4211-99aa-bef2a5516896&fname=WALC_2006_tif_only.zip&access=private WWW:DOWNLOAD-1.0-http--download WALC_2006_tif_only.zip GeoTIFF file http://www.sciencedirect.com/science/article/pii/S0034425715001261 Publication Publication on methodology and accuracy assessment of the land cover dataset in Journal "Remote Sensing of Environment". https://daten.zef.de/geoserver/wms OGC:WMS-1.1.1-http-get-map WASCAL:West_African_Land_Cover_2006_level2_v1_RSEpubli West African Land Cover 2006 (WMS) The accuracy assessment of the multi-sensor land cover map yields an overall accuracy of 80% at legend level 1 (9 classes) and 73% at the more detailed legend level 2 (14 classes). For more information on the map's accuracy, please read the publication in Remote sensing of Envirement, as indicated under "online resources".