Madagascar

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  • Time Period of the Dataset [?]: January 18, 2023-January 29, 2023 ... More
    Modified [?]: 24 November 2023
    Dataset Added on HDX [?]: 28 August 2023
    This dataset updates: Never
    This dataset is part of the data series [?]: WFP Advanced Disaster Analysis and Mapping - Cyclone Data
    ADAM ID: 1000957_6 Cyclone (tropical storm) during the period Jan 18 2023-Jan 29 2023 in Madagascar. It impacted 0 people.
  • Time Period of the Dataset [?]: February 06, 2023-March 12, 2023 ... More
    Modified [?]: 24 November 2023
    Dataset Added on HDX [?]: 28 August 2023
    This dataset updates: Never
    This dataset is part of the data series [?]: WFP Advanced Disaster Analysis and Mapping - Cyclone Data
    ADAM ID: 1000961_60 Cyclone (category 1) during the period Feb 06 2023-Mar 12 2023 in Mozambique, Madagascar. It impacted 1327678 people.
  • 10+ Downloads
    Time Period of the Dataset [?]: February 25, 2023-February 25, 2023 ... More
    Modified [?]: 24 November 2023
    Dataset Added on HDX [?]: 24 November 2023
    This dataset updates: Never
    This dataset is part of the data series [?]: WFP Advanced Disaster Analysis and Mapping - Flood Data
    ADAM ID: FL-20230225-MDG-00 Flood covering 733414.0 sq m on Feb 25 2023 in Madagascar. It impacted 1214587 people.
  • Time Period of the Dataset [?]: February 27, 2023-February 27, 2023 ... More
    Modified [?]: 28 February 2023
    Dataset Added on HDX [?]: 28 February 2023
    This dataset updates: Never
    UNOSAT code TC20230221MDG, GDACS Id: 1000961 This map illustrates satellite-detected water in Vohipeno district, Vatovavy Fitovinany region, Madagascar from a TerraSAR-X imagery acquired on 23 February 2023 at 05:19 local time. Within the analyzed area of about 1,100 km2, about 40 km2 of land appear to be flooded. Based on Worldpop population data and the detected surface waters, about 231,000 people live within the analysed area while 10,000 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 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 the backscattering properties of the radar signal.
  • Time Period of the Dataset [?]: February 24, 2023-February 24, 2023 ... More
    Modified [?]: 25 February 2023
    Dataset Added on HDX [?]: 25 February 2023
    This dataset updates: Never
    UNOSAT code TC20230221MDG, GDACS Id: 1000961 This map illustrates satellite-detected water in Manakara Atsimo District, Vatovavy Fitovinany Region, Madagascar from a TerraSAR-X imagery acquired on 23 February 2023 at 15:15 local time. Within the analyzed area of about 530 km2, about 16 km2 of land appear to be flooded. Based on Worldpop population data and the detected surface waters, about 87,000 people live within the analysed area while 4,100 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).
  • Time Period of the Dataset [?]: March 04, 2022-March 04, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Midongy-Atsimo District, Atsimo Atsinanana Region, Madagascar as observed from a Sentinel-2 image acquired on 24 February 2022 at 10:00 local time. Within the analyzed area about 1,200 km2, a total of about 90 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 5,000 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).
  • Time Period of the Dataset [?]: March 04, 2022-March 04, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Ambohimahasoa, Isandra, Lalangina, And Vohibato Districts, Haute Matsiatra Region, Madagascar as observed from a Sentinel-2 image acquired on 24 February 2022 at 10:00 local time. Within the analyzed area about 2,000 km2, a total of about 130 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 that has not yet been validated in the field. Please send ground feedback to United Nations Satellite Centre (UNOSAT).
  • Time Period of the Dataset [?]: March 03, 2022-March 03, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Farafangana and Vondrozo Districts, Atsimo Atsinanana Region, Madagascar as observed from a Sentinel-2 image acquired on 24 February 2022 at 10:00  local time. Within the analyzed area of about 1,000 km2, about 110 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 12,000 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 United Nations Satellite Centre (UNOSAT).
  • Time Period of the Dataset [?]: March 02, 2022-March 02, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Iakora and Ivohibe Districts, Ihorombe Region, Madagascar as observed from a Sentinel-2 image acquired on 24 February 2022 at 10:00 local time. Within the analyzed cloud free zones of about 150 km2, a total of about 28 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 United Nations Satellite Centre (UNOSAT).
  • Time Period of the Dataset [?]: March 02, 2022-March 02, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Mahanoro District, Atsinanana Region, Madagascar as observed from a Sentinel-2 image acquired on 24 February 2022 at 10:00 local time. Within the analyzed cloud free zones of about 450 km2, a total of about 40 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 3,500 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 United Nations Satellite Centre (UNOSAT).
  • Time Period of the Dataset [?]: March 02, 2022-March 02, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Mananjary and Nosy-Varika Districts, Vatovavy Fitovinany Region, Madagascar as observed from a Sentinel-2 image acquired on 24 February 2022 at 10:00 local time. Within the analyzed cloud free zones of about 800km2, a total of about 105 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 13,400 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).
  • Time Period of the Dataset [?]: March 02, 2022-March 02, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Vangaindrano district, Atsimo Atsinanana region, Madagascar as observed from a Sentinel-2 image acquired on 1 March 2022 at 10:00 local time. Within the analyzed cloud free zones of about 300km2, a total of about 25 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 5,500 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 United Nations Satellite Centre (UNOSAT).
  • Time Period of the Dataset [?]: March 01, 2022-March 01, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Ifotaka commune, Amboasary-Atsimo district, Anosy region, Madagascar as observed from an RCM-2 image acquired on 28 February 2022 at 05:16  local time. Within the analyzed area of about 330 km2, about 13 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 650 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.
  • Time Period of the Dataset [?]: February 28, 2022-February 28, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Mananjary district, Vatovavy Fitovinany region, Madagascar as observed from a Sentinel-1 image acquired on 27 February 2022 at 05:12 local time. Within the analyzed area of about 200 km2, about 6 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 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 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.
  • Time Period of the Dataset [?]: February 28, 2022-February 28, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Farafangana and Vangaindrano districts, Atsimo Atsinanana region, Madagascar as observed from a Sentinel-1 image acquired on 27 February 2022 at 05:12 local time. Within the analyzed area of about 500 km2, about 18 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 3,500 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 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.
  • Time Period of the Dataset [?]: February 28, 2022-February 28, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Taolagnaro District, Anosy Region, Madagascar as observed from a TerraSAR-X image acquired on 26 February 2022 at 18:15 local time. Within the analyzed area of about 140 km2, about 4 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 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.
  • 10+ Downloads
    Time Period of the Dataset [?]: February 25, 2022-February 25, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Manakara Atsimo district, Vatovavy Fitovinany region, Madagascar as observed from a Sentinel-2 image acquired on 24 February 2022 at 10:00 local time.  Within the analyzed cloud free zones of about 3,000 km2, a total of about 200 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 39,000 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 United Nations Satellite Centre (UNOSAT).
  • Time Period of the Dataset [?]: February 25, 2022-February 25, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters in Vangaindrano district, Atsimo Atsinanana region, Madagascar as observed from a Sentinel-2 image acquired on 24 February 2022 at 10:00 local time.  Within the analyzed cloud free zones of about 300km2, a total of about 56 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, about 12,500 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 United Nations Satellite Centre (UNOSAT).
  • Time Period of the Dataset [?]: February 25, 2022-February 25, 2022 ... More
    Modified [?]: 22 March 2022
    Dataset Added on HDX [?]: 22 March 2022
    This dataset updates: Never
    UNOSAT code: TC20220221MDG This map illustrates satellite-detected surface waters over Betroka district, Anosy region, Madagascar observed from Sentinel-1 image acquired on 24 February 2022 at 18:34 local time. The flood analysis were carried out by using an automated analysis with Artificial Intelligence based methods. Within the analyzed area about ~1,000 km2, a total of about 15 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 that 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.
  • Time Period of the Dataset [?]: February 17, 2022-February 17, 2022 ... More
    Modified [?]: 18 February 2022
    Dataset Added on HDX [?]: 18 February 2022
    This dataset updates: Never
    UNOSAT code: TC20220201MDG This map illustrates satellite-detected surface waters in Isandra, Lalangina, and Vohibato districts, Haute Matsiatra region, Madagascar observed from a Kompsat5 image acquired on 12 February 2022 at 06:14 local time. Within the analyzed area about 1,700 km2, a total of about 10 km2 of lands appear to be flooded. The water extent appears to have decreased of about 40 km2 since 8 February 2022. Based on Worldpop population data and the detected surface waters, about 2,400 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). 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.
  • Time Period of the Dataset [?]: February 15, 2022-February 15, 2022 ... More
    Modified [?]: 16 February 2022
    Dataset Added on HDX [?]: 16 February 2022
    This dataset updates: Never
    UNOSAT code: TC20220201MDG 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-1 Imagery Date: 15 Feb 2022 at 02:12 Local time Resolution: 10 m Copyright: Contains modified Copernicus Sentinel Data [2022]Source: ESA
  • Time Period of the Dataset [?]: February 15, 2022-February 15, 2022 ... More
    Modified [?]: 16 February 2022
    Dataset Added on HDX [?]: 16 February 2022
    This dataset updates: Never
    UNOSAT code: TC20220201MDG 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.
  • Time Period of the Dataset [?]: February 14, 2022-February 14, 2022 ... More
    Modified [?]: 16 February 2022
    Dataset Added on HDX [?]: 16 February 2022
    This dataset updates: Never
    UNOSAT code: TC20220201MDG 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.
  • Time Period of the Dataset [?]: February 14, 2022-February 14, 2022 ... More
    Modified [?]: 16 February 2022
    Dataset Added on HDX [?]: 16 February 2022
    This dataset updates: Never
    UNOSAT code: TC20220201MDG 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.
  • Time Period of the Dataset [?]: February 11, 2022-February 11, 2022 ... More
    Modified [?]: 16 February 2022
    Dataset Added on HDX [?]: 16 February 2022
    This dataset updates: Never
    UNOSAT code: TC20220201MDG 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.