UNITAR-UNOSAT has performed time series analysis of the evolution of satellite-detected surface waters in Sanamxay district, Attapeu province, based on satellite data collected on 13, 25 and 29 July 2018. Find below key figures within the analysis extent for the three dates analyzed:
As of 13 July 2018
Flood extent area: 47,717 Ha
Reservoir area: 3,766 Ha
As of 25 July 2018
Flood extent area: 55,247 Ha / Percentage: 16% à General trend: increase of flood waters
Reservoir area: 960 Ha / Trend: decrease in size
As of 29 July 2018
Flood extent area: 30,435 Ha / Percentage: 45% à General trend: flood waters are receding
Reservoir area: 702 Ha / Trend: decrease in size.
You can have access to these analysis following the links below (map & vector data):
Optical very high resolution satellite imagery acquisitions that took place today and during the weekend were completely cloudy, below and screenshot of the collections from 30 July 2018:
New attempts will happen in the coming days, we will inform you in case they are useful for conducting damage assessment.
You could follow the satellite imagery acquisition and analysis delivered plan in our platform: GDACS-SMCS for this event.
Please don’t hesitate to contact us in case you have an specific request,
Carolina on behalf of the UNOSAT Rapid Mapping Team
Imagery Analyst & GIS Expert, UNOSAT
United Nations Institute for Training and Research (UNITAR)
Palais des Nations, CH-1211 Geneva 10, Switzerland
T +41 22 767 4020