South Sudan water data

**UNOSAT code: FL20250110SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 18 to 22 January 2025 compared with the period from 04 to 08 January 2025 . Within the cloud free analysed areas of about 630,000 km², a total of about 42,000 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 13,000 km² since the period between 04 to 08 January 2025 within the cloud free analysed areas. Based on Worldpop population data and the maximal flood water extent ~655,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20250110SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 01 to 05 February 2025 compared with the period from 18 to 22 January 2025 . Within the cloud free analysed areas of about 630,000 km², a total of about 38,000 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 4,000 km² since the period between 18 to 22 January 2025 within the cloud free analysed areas. Based on Worldpop population data and the maximal flood water extent ~605,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20250110SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 01 to 05 March 2025 compared with the period from 01 to 05 February 2025 . Within the cloud free analysed areas of about 630,000 km², a total of about 23,000 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 14,000 km² since the period between 01 to 05 February 2025 within the cloud free analysed areas. Based on Worldpop population data and the maximal flood water extent ~390,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20250110SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 15 to 19 March 2025 compared with the period from 01 to 05 March 2025 . Within the cloud free analysed areas of about 630,000 km², a total of about 22,000 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 1,600 km² since the period between 01 to 05 March 2025 within the cloud free analysed areas. Based on Worldpop population data and the maximal flood water extent ~375,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20250110SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 13 to 17 August 2025, compared with the period from 25 to 29 April 2025. Within the cloud-free analysed areas of about 620,000 km², a total of about 26,000 km² of land appears to be affected by flood waters. Water extent appears to have increased of about 15,000 km² since the period between 25 to 29 April 2025 within the cloud-free analysed areas. Based on Worldpop population data and the maximal flood water extent ~416,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20250110SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 25 to 29 April 2025 compared with the period from 15 to 19 March 2025 . Within the cloud free analysed areas of about 620,000 km², a total of about 11,000 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 10,600 km² since the period between 15 to 19 March 2025 within the cloud free analysed areas. Based on Worldpop population data and the maximal flood water extent ~180,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20211015SSD** This map illustrates cumulative satellite-detected water using VIRRS in South Sudan between 09 to 13 October 2021 and 26 to 30 September 2021. Within the analyzed extent not covered by clouds, a total of about 37,000 km2 appear to be flooded. Based on Worldpop population data and the detected surface water, about 1,000,000 people are exposed or living close to flooded area. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20220119SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 15 to 19 Jan. 2022 compared with the period between 10 to 14 Jan. 2022. Within the cloud free analyzed areas of about 625,000 km2, a total of about 31,500 km2 of lands appear to be affected with flood waters. Water extent appears to have decreased of about 1,300 km2 since the period between 10 to 14 Jan. 2022. Based on Worldpop population data and the maximal flood water coverage, ~755,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20220119SSD** This map illustrates cumulativesatellite-detected water using VIIRS in South Sudan between 11 to 15 Feb. 2022 compared with the period between 04 to 08 Feb. 2022. Within the cloud free analyzed areas of about 630,000 km2, a total of about 30,200 km2 of lands appear to be affected with flood waters. Water extent appears to have increased of about 1,500 km2 since the period between 04 to 08 Feb. 2022. Based on Worldpop population data and the maximal flood water coverage, ~704,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20220119SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 4 to 8 Feb. 2022 compared with the period between 15 to 19 Jan. 2022. Within the cloud free analyzed areas of about 630,000 km2, a total of about 28,800 km2 of lands appear to be affected with flood waters. Water extent appears to have decreased of about 2,900 km2 since the period between 15 to 19 Jan. 2022. Based on Worldpop population data and the maximal flood water coverage, ~684,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20211015SSD** This map illustrates historical comparative cumulative satellite-detected water using VIIRS in South Sudan between 19 Sep. to 18 Oct. 2021 and 20 Sep. to 19 Oct. 2020 . Within the analyzed extent not covered by clouds, a total of about 70,000 km2 appear to be flooded. Based on Worldpop population data and the detected surface water, about 2,000,000 people are exposed or living close to flooded area. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20211015SSD** This map illustrates satellite-detected water in Rubkona, Koch, and Guit Counties of South Sudan as observed from a Sentinel-2 image acquired on 17 October 2021. Within the cloud free analyzed areas of about 40,000km2, a total of about 5,700 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters, ~138,000 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 the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: FL20220424SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 03 to 07 August 2022 compared with the period from 19 to 23 July 2022. Within the cloud free analyzed areas of about 605,000 km2, a total of about 22,000 km2 of lands appear to be affected with flood waters. Water extent appears to have increased of about 7,000 km2 since the period between 19 to 23 July 2022. Based on Worldpop population data and the maximal flood water coverage, ~565,000 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 the United Nations Satellite Centre (UNOSAT).