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31 Aug 2017 description

This map illustrates satellite-detected surface water extent in Elegu town and surroundings using a Sentinel-1 satellite image acquired on the 23 August 2017. Within the map extent, surface waters extended of about 12% more particularly south and north-west of Elegu where evidences of floods could be observed. It is likely that flood waters have been systematically underestimated along highly vegetated areas along main river banks, and within built-up urban areas because of the characteristics of the satellite data used.

11 Mar 2010 description

This map illustrates an updated satellite-based analysis of probable landside-affected areas as identified in post-disaster SPOT-5 imagery recorded 10 March 2010 and pre-disaster Spot-5 imagery from 20 February 2007. Main buildings likely affected by landslides were identified through automatic detection techniques from the pre-crisis SPOT-5 imagery. Please note there is an associated degree of uncertainly for some areas of landslides because of local cloud cover and the building count is likely to be an underestimate from the total number of affected buildings in this area.

09 Mar 2010 description

This map illustrates satellite-detected areas of probable landsides as identified in Formosat-2 imagery recorded on 7 March 2010, and pre-crisis Spot-5 imagery acquired 20 February 2007. Main buildings likely affected by landslides were identified through automatic detection techniques from the pre-crisis SPOT-5 imagery. Please note there is an associated degree of uncertainly for some areas of landslides because of local cloud cover and the building count is likely to be an underestimate from the total number of affected buildings in this area.

08 Oct 2007 description

This map illustrates the total August rainfall accumulation for East Africa, derived from the CMORPH precipitation dataset at a spatial resolution of approximately 10km for this region, and was calculated using microwave and infrared data from geostationary satellites. It is possible that precipitation levels may have been underestimated for local areas, and is not a substitute for ground station measurements.

18 Sep 2007 description

This map illustrates the total August rainfall accumulation for East Africa, derived from the CMORPH precipitation dataset at a spatial resolution of approximately 10km for this region, and was calculated using microwave and infrared data from geostationary satellites. It is possible that precipitation levels may have been underestimated for local areas, and is not a substitute for ground station measurements.