https://unitar.org/unosat/node/44/3473 https://experience.arcgis.com/experience/7fd1b110e7ac447ab0c85c6e9ae70d24/?draft=true Tue, 15 Feb 2022 16:26:39 +0100 This map illustrates satellite-detected surface waters in Farafangana and Vangaindrano districts, Atsimo Atsinanana region, Madagascar as observed from Sentinel-1 image acquired of 15 February 2022 at 05:12 local time. Within the analyzed area of about 1,700 km2, about 5 km2 of lands appear to be flooded. The water extent appears to have decreased of about 80 km2 since 8 February 2022. Based on Worldpop population data and the detected surface waters, about 900 people are potentially exposed or living close to flooded areas.This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT.Important note: Flood analysis from radar images may underestimate the presence of standing waters in built-up areas and densely vegetated areas due to backscattering properties of the radar signal.Satellite Data: Sentinel-1Imagery Date: 15 Feb 2022 at 02:12 Local timeResolution: 10 mCopyright: Contains modified Copernicus Sentinel Data [2022]Source: ESA 1000859 TC20220201MDG UNOSAT@UNITAR.ORG (UNOSAT) TC https://unosat-maps.web.cern.ch/unosat-maps/MG/TC20220201MDG/UNOSAT_A3_Natural_Portrait_TC20220102MDG_Farafangana_Vangaindrano_Madagascar_15Feb2022.jpg http://unitar.org/unosat/node/44/3473 -23.054885 47.719159 -23.638161 47.719159 -23.638161 47.462618 -23.054885 47.462618 -23.054885 47.719159 -23.638161 47.719159 unosat https://unitar.org/unosat/node/44/3472 https://experience.arcgis.com/experience/7fd1b110e7ac447ab0c85c6e9ae70d24/?draft=true Tue, 15 Feb 2022 16:17:18 +0100 This map illustrates satellite-detected surface waters in Farafangana district, Atsimo Atsinanana region, Madagascar as observed from Sentinel-1 image acquired of 15 February 2022 at 05:12 local time. Within the analyzed area of about 1,200 km2, about 6 km2 of lands appear to be flooded. The water extent appears to have decreased of about 87 km2 since 8 February 2022. Based on Worldpop population data and the detected surface waters, about 1,200 people are potentially exposed or living close to flooded areas.This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT.Important note: Flood analysis from radar images may underestimate the presence of standing waters in built-up areas and densely vegetated areas due to backscattering properties of the radar signal. 1000859 TC20220201MDG UNOSAT@UNITAR.ORG (UNOSAT) TC https://unosat-maps.web.cern.ch/unosat-maps/MG/TC20220201MDG/UNOSAT_A3_Natural_Portrait_TC20220102MDG_Farafangana_Madagascar_15Feb2022.jpg http://unitar.org/unosat/node/44/3472 -22.941701 47.885533 -22.512241 47.885533 -22.512241 47.581433 -22.941701 47.581433 -22.941701 47.885533 -22.512241 47.885533 https://unitar.org/unosat/node/44/3471 https://experience.arcgis.com/experience/7fd1b110e7ac447ab0c85c6e9ae70d24/?draft=true Tue, 15 Feb 2022 15:49:06 +0100 Status: Inundated and damaged roads observedFurther action(s): Continue monitoringSummary of findings;Route 1 : Farafangana – Vondrozo District, Atsimo Atsinanana ProvinceAffected roads in Farafangana Town observed as of 15 Feb 2022;Potentially damaged road and standing waters observed in Vondrozo district as of 15 Feb 2022;Potentially damaged bridge observed in Vondrozo district as of 15 Feb 2022;Route-2: Midongy Atsimo – Befotoka District, Atsimo Atsinanana ProvinceInundated road observed in Midongy town, Midongy Atsimo district as of 9 Feb 2022;Damaged road observed in Midongy Atsimo district as of 9 Feb 2022;No visible damaged road observed in Befotaka Village, Befotaka District, Atsimo Atsinanana Region as of 15 Feb 2022; 1000859 TC20220201MDG UNOSAT@UNITAR.ORG (UNOSAT) TC https://unosat-maps.web.cern.ch/unosat-maps/MG/TC20220201MDG/UNOSAT_Preliminary_Assessment_Report_TC20220201MDG_Madagascar_15Feb2022.jpg http://unitar.org/unosat/node/44/3471 -22.755176 47.917547 -23.897703 47.917547 -23.897703 46.872944 -22.755176 46.872944 -22.755176 47.917547 -23.897703 47.917547 https://unitar.org/unosat/node/44/3469 https://experience.arcgis.com/experience/7fd1b110e7ac447ab0c85c6e9ae70d24/?draft=true Mon, 14 Feb 2022 13:12:31 +0100 This map illustrates satellite-detected surface waters in Farafangana and Vangaindrano districts, Atsimo Atsinanana region, Madagascar as observed from RCM-3 images acquired on 8 February 2022 at 05:15 local time. Within the analyzed area of 1,700 km2, a total of about 84 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 17,800 people are potentially exposed or living close to flooded areas. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT.Important note: Flood analysis from radar images may underestimate the presence of standing waters in built-up areas and densely vegetated areas due to backscattering properties of the radar signal. 1000859 TC20220201MDG UNOSAT@UNITAR.ORG (UNOSAT) TC https://unosat-maps.web.cern.ch/unosat-maps/MG/TC20220201MDG/UNOSAT_A3_Natural_Portrait_TC20220102MDG_Farafangana_Vangaindrano_Madagascar_8Feb2022.jpg http://unitar.org/unosat/node/44/3469 -23.054885 47.719159 -23.638161 47.719159 -23.638161 47.462618 -23.054885 47.462618 -23.054885 47.719159 -23.638161 47.719159 https://unitar.org/unosat/node/44/3468 https://experience.arcgis.com/experience/7fd1b110e7ac447ab0c85c6e9ae70d24/?draft=true Mon, 14 Feb 2022 13:06:39 +0100 This map illustrates satellite-detected surface waters in Farafangana district, Atsimo Atsinanana region, Madagascar as observed from a TerraSAR-X image acquired on 8 February 2022 at 05:27 local time. Within the analyzed area of 2,600km2, a total of about 100 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 22,400 people are potentially exposed or living close to flooded areas. This is a preliminary analysis and has not yet been validated in the field.  Please send ground feedback to United Nations Satellite Centre (UNOSAT).Important note: Flood analysis from radar images may underestimate the presence of standing waters in built-up areas and densely vegetated areas due to backscattering properties of the radar signal. 1000859 TC20220201MDG UNOSAT@UNITAR.ORG (UNOSAT) TC https://unosat-maps.web.cern.ch/unosat-maps/MG/TC20220201MDG/UNOSAT_A3_Natural_Portrait_TC20220201MDG_Farafangana_Madagascar_8Feb2022.jpg http://unitar.org/unosat/node/44/3468 -22.941701 47.581433 -22.512241 47.581433 -22.512241 47.885533 -22.941701 47.885533 -22.941701 47.581433 -22.512241 47.581433 https://unitar.org/unosat/node/44/3467 https://experience.arcgis.com/experience/7fd1b110e7ac447ab0c85c6e9ae70d24/?draft=true Fri, 11 Feb 2022 12:12:26 +0100 This map illustrates satellite-detected surface waters in Midongy-Atsimo district, Atsimo Atsinanana region, Madagascar as of 8 February 2022 at 05:21 local time. The flood analysis were carried out by using an automated analysis with Artificial Intelligence based methods. Within the analyzed area of about 2,400 km2, ~150 km2 of lands appear to be flooded and about 2 km2 of croplands appear to be likely affected by the flood waters. Based on Worldpop population data and the detected surface waters in the analyzed area, the potentially exposed population is about 6,200 people potentially exposed or living close to flooded areas.This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to United Nations Satellite Centre (UNOSAT).Important note: Flood analysis from radar images may underestimate the presence of standing waters in built-up areas and densely vegetated areas due to backscattering properties of the radar signal. 1000859 TC20220201MDG UNOSAT@UNITAR.ORG (UNOSAT) TC https://unosat-maps.web.cern.ch/unosat-maps/MG/TC20220201MDG/UNOSAT_A3_Natural_Portrait_TC20220102MDG_MidongyAtsimo_Madagascar_8Feb2022.jpg http://unitar.org/unosat/node/44/3467 -22.898826 46.807886 -23.439482 46.807886 -23.439482 47.13169 -22.898826 47.13169 -22.898826 46.807886 -23.439482 46.807886 https://unitar.org/unosat/node/44/3466 https://experience.arcgis.com/experience/7fd1b110e7ac447ab0c85c6e9ae70d24/?draft=true Thu, 10 Feb 2022 14:32:07 +0100 This map illustrates satellite-detected surface waters over Betroka district, Anosy region, Madagascar observed from Sentinel-2 image acquired on 9 February 2022 at 10:00 local time. Within the analyzed cloud free zones of about ~1,000 km2, a total of about 35 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 2,000 people are potentially exposed or living close to flooded areas. This is a preliminary analysis that has not yet been validated in the field. Please send ground feedback to United Nations Satellite Centre (UNOSAT). 1000859 TC20220201MDG UNOSAT@UNITAR.ORG (UNOSAT) TC https://unosat-maps.web.cern.ch/unosat-maps/MG/TC20220201MDG/UNOSAT_A3_Natural_Portrait_TC20220102MDG_Betroka_Madagascar_9Feb2022.jpg http://unitar.org/unosat/node/44/3466 -23.196551 46.001194 -23.5970494 46.001194 -23.5970494 46.239349 -23.196551 46.239349 -23.196551 46.001194 -23.5970494 46.001194