Webmap showing analysis related to the Tropical Cyclone IOTA-20 https://unitar.org/unosat/node/44/3186 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_LiveWebmap_Iota_Nicaragua_TC20201116NIC.jpg guid_1 Wed, 18 Nov 2020 10:31:26 Webmap showing analysis related to the Tropical Cyclone IOTA-20 https://unitar.org/unosat/node/44/3187 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_LiveWebmap_Iota_Honduras_TC20201116HND.jpg guid_2 Wed, 18 Nov 2020 10:33:54 Webmap showing analysis related to the Tropical Cyclone IOTA-20 https://unitar.org/unosat/node/44/3188 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_LiveWebmap_Iota_Salvador_TC20201118SLV.jpg guid_3 Wed, 18 Nov 2020 11:01:55 This map illustrates satellite-detected surface waters (cumulative) aggregated using NOAA20-VIIRS in Honduras between 13 and 17 November 2020. Based on Worldpop spatial demographic data, about 140,000 people are exposed or living close to flooded areas. The potentially exposed population is mainly located in the department of Cortes with ~80,000 people, Choluteca with ~23,000 people, and Valle with ~14,000 people. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT https://unitar.org/unosat/node/44/3189 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201116HND_Honduras_13_17112020.jpg guid_4 Wed, 18 Nov 2020 16:38:25 This map illustrates satellite-detected surface waters (cumulative) in El Salvador as detected by VIIRS-NOAA satellite between 13th & 17th November 2020. Within the analyzed area of about 20,000 km2, a total of about 440 km2 of lands appear to be flooded. Based on HRSL population data and the detected surface waters, about 44,000 people are potentially exposed or living close to flooded areas. The potentially exposed population is mainly located in the departments of Usulutan with ~9,000 people, La Union with ~8,500 people, and Santa Ana with ~7,500 people. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3190 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201118SLV_18112020.jpg guid_5 Wed, 18 Nov 2020 17:24:11 Este mapa ilustra las inundaciones detectadas por el satélite NOAA-VIIRS en Nicaragua entre el 13 y 17 de Noviembre. Dentro del área analizada de aproximadamente 95,000 km2, un total de aproximadamente 2,000 km2 de tierras parecen estar inundadas. Basado en los datos de población de Worldpop y la extensión de las aguas superficiales detectadas, alrededor de 100,000 personas están potencialmente expuestas o viven cerca de áreas inundadas. La población potencialmente expuesta se encuentra principalmente en el departamento de Chinandega con ~25,000 habitantes, en el departamento de Manague con ~16,000 habitantes, y em el departamento de Atlántico Norte con 10,000 habitantes. Se trata de un análisis preliminar que aún no ha sido validado en el terreno. Por favor envíe comentarios a UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3191 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201116NIC_Nicaragua_20201113_20201117.jpg guid_6 Wed, 18 Nov 2020 18:29:42 This map illustrates satellite-detected surface waters in Atlantida and Yoro Departments of Honduras as observed from a Sentinel-1 image acquired on 18 November 2020 at 05:37 Local time. Within the analyzed area of about 3,000 km2, a total of about 40 km2 of lands appear to be flooded. 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. https://unitar.org/unosat/node/44/3192 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201116HND_Atlantida_Honduras_18112020.jpg guid_7 Thu, 19 Nov 2020 17:41:06 This map illustrates satellite-detected surface waters in Olancho Department of Honduras as observed from a Sentinel-1 image acquired on 18 November 2020 at 05:37 Local time. Within the analyzed area of about 4,400 km2, a total of about 32 km2 of lands appear to be flooded. 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. https://unitar.org/unosat/node/44/3193 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201116HND_Olancho_Honduras_18112020.jpg guid_8 Thu, 19 Nov 2020 17:47:11 This map illustrates satellite-detected surface waters in Colon and Yoro Departments of Honduras as observed from a Sentinel-1 image acquired on 18 November 2020 at 05:37 Local time. Within the analyzed area of about 12,000 km2, a total of about 80 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 4,000 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. https://unitar.org/unosat/node/44/3194 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201116HND_Colon_Honduras_18112020.jpg guid_9 Thu, 19 Nov 2020 17:53:42 This map illustrates satellite-detected surface waters in Colon and Yoro Departments of Honduras as observed from a Sentinel-1 image acquired on 18 November 2020 at 18:06 Local time. Within the analyzed area of about 5,200 km2, a total of about 220 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 82,000 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. https://unitar.org/unosat/node/44/3195 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Protrait_TC20201116HND_Cortes_Honduras_18112020.jpg guid_10 Fri, 20 Nov 2020 11:07:25 This map illustrates satellite-detected surface waters in Alta Verapaz, Izabal and Zacapa departments of Guatemala as observed from a Sentinel-1 image acquired on 18 November 2020 at 18:06 local time. Within the analyzed area of about 15,000 km2, a total of about 170 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 17,500 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. https://unitar.org/unosat/node/44/3196 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201119GTM_Izabel_18112020.jpg guid_11 Fri, 20 Nov 2020 14:36:57 This map illustrates satellite-detected surface waters in Petén department of Guatemala as observed from a Sentinel-1 image acquired on 18 November 2020 at 18:06 local time. Within the analyzed area of about 3,400 km2, a total of about 100 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 4,200 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. https://unitar.org/unosat/node/44/3197 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201119GTM_Peten_18112020.jpg guid_12 Fri, 20 Nov 2020 14:41:34 This map illustrates satellite-detected surface waters in Peten, Alta Verapaz and Quiche departments of Guatemala & Chiapas state of Mexico as observed from a Sentinel-1 image acquired on 22 November 2020 at 05:53 Local time. Within the analyzed area of about 10,000 km2, a total of about 380 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 24,000 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. https://unitar.org/unosat/node/44/3198 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201119GTM_Peten_Chiapas_22112020.jpg guid_13 Mon, 23 Nov 2020 14:06:17 This map illustrates potentially damaged structures and buildings in Providencia Island, Providencia and Santa Catalina Department of Colombia as detected by satellite image acquired after landfall of the Tropical Cyclone IOTA on 17 November 2020. UNITAR-UNOSAT analysis used a WorldView-2 image acquired on 21 November 2020 as a post-event image. Within the Island boundary, UNITAR-UNOSAT identified in the cloud-free zones 1,110 damaged structures. Taking into account the pre-building footprints provided by Humanitarian OpenStreetMap, this represents about 90% of the total number of structures within the analyzed cloud-free areas. https://unitar.org/unosat/node/44/3199 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Protrait_TC20201123COL_ProvidenciaIsland_Colombia_21112020.jpg guid_14 Tue, 24 Nov 2020 18:32:54 This map illustrates potentially damaged structures and buildings in San Andres Island, Providencia and Santa Catalina department of Colombia as detected by satellite image acquired after landfall of the Tropical Cyclone IOTA on 17 November 2020. UNITAR-UNOSAT analysis used a WorldView-2 image acquired on 18 November 2020 as a post-event image. Within the Island boundary, UNITAR-UNOSAT identified in the cloud-free zones 220 Potentially damaged structures. Taking into account the pre-building footprints provided by Humanitarian OpenStreetMap, this represents about 6% of the total number of structures within the analyzed cloud-free areas. https://unitar.org/unosat/node/44/3200 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Protrait_TC20201123COL_SanAndreasIsland_Colombia_18112020.jpg guid_15 Tue, 24 Nov 2020 18:36:37 Status: Damaged buildings observedFurther actions(s): Continue monitoringDate of assessment validity: 24 November 2020Preliminary observations, impact and severity *:Widespread damage observed in Providencia Islands;Widespread damage observed in San Andres Island;Damaged infrastructures observed across the Islands including roads, hospital, bridges, schools;Vegetation heavily affected in several parts of San Andres Island;No damage could be observed in eastern parts of San Andres island. https://unitar.org/unosat/node/44/3201 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_Preliminary_Assessment_Report_TC20201123COL_20201124.jpg guid_16 Tue, 24 Nov 2020 20:01:57 This map illustrates satellite-detected surface waters in Cortes, Atlantida, and Yoro departments of Honduras as observed from a Sentinel-1 image acquired on 23 November 2020 at 05:45 Local time. Within the analyzed area of about 3,500 km2, a total of about 170 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 35,000 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. https://unitar.org/unosat/node/44/3202 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Protrait_TC20201116HND_Cortes_Honduras_23112020.jpg guid_17 Wed, 25 Nov 2020 12:05:07 This map illustrates satellite-detected surface waters in Izabal department of Guatemala as observed from a Sentinel-1 image acquired on 23 November 2020 at 05:45 Local time. Within the analyzed area of about 6,000 km2, a total of about 150 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 8,600 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. https://unitar.org/unosat/node/44/3203 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201119GTM_Izabal_23112020.jpg guid_18 Wed, 25 Nov 2020 12:09:15 This map illustrates satellite-detected surface waters in Gracias a Dios department of Honduras as observed from a Sentinel-1 image acquired on 25 November 2020 at 05:30 Local time. Within the analyzed area of about 15,000 km2, a total of about 330 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 3,000 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. https://unitar.org/unosat/node/44/3204 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201116HND_GraciasaDios_Honduras_25112020.jpg guid_19 Thu, 26 Nov 2020 12:35:42 This map illustrates satellite-detected surface waters in Cortes, Atlantida and Yoro departments of Honduras as observed from a Sentinel-1 image acquired on 25 November 2020 at 17:58 Local time. Within the analyzed area of about 6,000 km2, a total of about 170 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 35,200 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. https://unitar.org/unosat/node/44/3206 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Protrait_TC20201116HND_Cortes_Honduras_25112020.jpg guid_20 Fri, 27 Nov 2020 13:05:24 This map illustrates satellite-detected surface waters and potential affected buildings in Puerto Barrios municipality, Izabal department of Guatemala as observed from a WorldView-3 image acquired on 25 November 2020 at 10:28 Local time. Within the analyzed area of about 230 km2, a total of about 100 km2 of lands appear to be flooded. About 220 buildings are identified as damaged and 30 as potentially damaged. Some roads were also identified as potentially damaged.This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT. https://unitar.org/unosat/node/44/3209 https://www.gdacs.org/contentdata/maps/unosat/TC/1000743/UNOSAT_A3_Natural_Landscape_TC20201119GTM_PuertoBarrios.jpg guid_21 Wed, 02 Dec 2020 14:16:51