South Sudan water data

Water features across the area: rivers, streams, canals, lakes, ponds, and water bodies tagged with `waterway`, `water`, or `natural=water`. Useful for flood-risk modelling, watershed analysis, and environmental basemap context. Coverage reflects where volunteer mappers have been active. Urban areas are usually well represented, remote areas may be sparse. Cross-check critical decisions with local field knowledge. - Source: OpenStreetMap, a free, collaborative world map - Tags: waterway, water, natural - Part of the country exports on HDX by HOT

Water resources and water infrastructure in Sudan including rivers, lakes, boreholes, wells and water points. Use this layer for water access analysis, WASH programme planning, drought monitoring, flood risk assessment, and water resource management.

Line features representing rivers and drainage in South Sudan, including the White Nile. Each row is a river segment with attributes such as name, stream order, length, and navigability. Published by Orion Terrametrics.

**UNOSAT code FL20220424SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 01 to 05 March 2023 compared with the period from 20 to 24 February 2023. Within the cloud free analyzed areas of about 630,000 km², a total of about 30,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 5,000 km² since the period between 20 to 24 February 2023. Based on Worldpop population data and the maximal flood water extent ~480,000 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 25 to 29 March 2023 compared with the period from 01 to 05 March 2023. Within the cloud free analyzed areas of about 625,000 km², a total of about 17,000 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 01 to 05 March 2023. Based on Worldpop population data and the maximal flood water extent ~285,000 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 18 to 22 October 2022 compared with the period from 04 to 08 October 2022. Within the cloud free analyzed areas of about 620,000 km², a total of about 43,000 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 4,700 km² since the period between 04 to 08 October 2022. Based on Worldpop population data and the maximal flood water extent ~835,000 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 04 to 08 October 2022 compared with the period from 10 to 14 September 2022. Within the cloud free analyzed areas of about 620,000 km², a total of about 48,000 km² of lands appear to be affected with flood waters in which ~16,500 km² are herbaceous wetlands. Water extent appears to have increased of about 18,000 km² since the period between 10 to 14 September 2022. Based on Worldpop population data and the maximal flood water extent ~940,000 people are potentially exposed or living close to flooded areas. By considering the maximal flood water extent and landcover from ESA we estimate to ~16,500 ha of croplands which are potentially affected by floods. 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 06 to 10 May 2023 compared with the period from 27 April to 01 May 2023. Within the cloud free analyzed areas of about 620,000 km², a total of about 12,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 4,500 km² since the period between 27 April to 01 May 2023. Based on Worldpop population data and the maximal flood water extent ~220,000 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 17 to 21 January 2023 compared with the period from 12 to 16 January 2023. Within the cloud free analyzed areas of about 629,000 km², a total of about 47,700 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 3,000 km² since the period between 12 to 16 January 2022. Based on Worldpop population data and the maximal flood water extent ~795,000 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 10 to 14 June 2023 compared with the period from 01 to 05 June 2023. Within the cloud free analyzed areas of about 615,000 km², a total of about 11,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 1,000 km² since the period between 01 to 05 June 2023. Based on Worldpop population data and the maximal flood water extent ~205,000 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 10 to 14 November 2022 compared with the period from 26 to 30 October 2022. Within the cloud free analyzed areas of about 625,000 km², a total of about 41,000 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 10,000 km² since the period between 26 to 30 October 2022. Based on Worldpop population data and the maximal flood water extent ~745,000 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 26 to 30 October 2022 compared with the period from 18 to 22 October 2022. Within the cloud free analyzed areas of about 630,000 km², a total of about 52,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 8,400 km² since the period between 18 to 22 October 2022. Based on Worldpop population data and the maximal flood water extent ~965,000 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 10 to 14 September 2022 compared with the period from 30 August to 03 September 2022. Within the cloud free analyzed areas of about 605,000 km², a total of about 30,000 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 30 August to 03 September 2022. Based on Worldpop population data and the maximal flood water coverage, ~615,000 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). The boundaries and names shown, and the designations used on this map do not imply official endorsement or acceptance by the United Nations. The United Nations Satellite Centre - UNOSAT is not responsible for the misuse or misrepresentation of the map. Final boundary between the Republic of Sudan and the Republic of South Sudan has not yet been determined.

**UNOSAT code FL20220424SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 11 to 15 August 2023 compared with the period from 10 to 14 July 2023. Within the cloud free analyzed areas of about 630,000 km², a total of about 26,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 9,000 km² since the period between 10 to 14 July 2023. Based on Worldpop population data and the maximal flood water extent ~450,000 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 VIIRS in South Sudan between 19 to 23 November 2021 compared with the period between 03 to 07 November 2021. Within the cloud free analyzed areas of about 630,000 km2, a total of about 33,000 km2 of lands appear to be affected with flood waters. Water extent appears to have decreased of about 660 km2 since the period between 03 to 07 November 2021. Based on Worldpop population data and the detected surface waters, ~880,000 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 20 to 24 April 2022 compared with the period from 14 to 18 May 2022. Within the cloud free analyzed areas of about 630,000 km2, a total of about 9,000 km2 of lands appear to be affected with flood waters. Water extent appears to have decreased of about 800 km2 since the period between 20 to 24 April 2022. Based on Worldpop population data and the maximal flood water coverage, ~220,000 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 VIIRS in South Sudan between 20 to 25 October 2021 compared with the period between 15 to 19 October 2021. Within the cloud free analyzed areas of about 630,000 km2, a total of about 36,000 km2 of lands appear to be affected with flood waters. Water extent appears to have decreased of about 12,000 km2 since the period between 15 to 19 October 2021. Based on Worldpop population data and the detected surface waters, ~1,040,000 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 VIIRS in South Sudan between 03 to 07 November 2021 compared with the period between 20 to 24 October 2021. Within the cloud free analyzed areas of about 630,000 km2, a total of about 33,500 km2 of lands appear to be affected with flood waters. Water extent appears to have decreased of about 2,700 km2 since the period between 20 to 24 October 2021. Based on Worldpop population data and the detected surface waters, ~935,000 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: FL20191023SSD** This map illustrates the 5-day cumulative, day-time surface water extent detected over Luakpiny/Nasir, Pibor and neighbouring counties in South Sudan. The extent was derived from VIIRS-NOAA satellite imagery between 2 and 6 November 2019 and includes all pixels with 0-100% open water. In the two counties of interest, about 9% of the population in Luakpiny/Nasir and 7% in Pibor may be affected by taking into account WorldPop population estimates. This is a preliminary analysis that has not yet been validated in the field. Please send any fieldbased comments to UNITAR-UNOSAT.

**UNOSAT code: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 20 to 24 April 2024. Within the cloud free analysed areas of about 630,000 km², a total of about 9,000 km² of lands appear to be affected with flood waters. Based on Worldpop population data and the maximal flood water extent ~165,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 05 to 09 June 2024 compared with the period from 01 to 05 May 2024. Within the cloud free analysed areas of about 580,000 km², a total of about 7,500 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 1,700 km² since the period between 01 to 05 May 2024. Based on Worldpop population data and the maximal flood water extent ~120,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 10 to 14 August 2024 compared with the period from 01 to 05 August 2024. Within the cloud free analysed areas of about 620,000 km², a total of about 30,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 1,800 km² since the period between 01 to 05 August 2024. Based on Worldpop population data and the maximal flood water extent ~505,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 15 to 19 August 2024 compared with the period from 10 to 14 August 2024. Within the cloud free analysed areas of about 570,000 km², a total of about 14,000 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 16,000 km² since the period between 10 to 14 August 2024. Based on Worldpop population data and the maximal flood water extent ~235,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 18 to 22 August 2024 compared with the period from 15 to 19 August 2024. Within the cloud free analysed areas of about 560,000 km², a total of about 18,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 4,000 km² since the period between 15 to 19 August 2024. Based on Worldpop population data and the maximal flood water extent ~305,000 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: FL20240425SSD** Satellite detected water extents between 13 and 17 September 2024 over South Sudan This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 13 to 17 September 2024 compared with the period from 18 to 22 August 2024 . Within the cloud free analysed areas of about 560,000 km², a total of about 41,400 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 23,300 km² since the period between 18 to 22 August 2024 . Based on Worldpop population data and the maximal flood water extent ~305,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 05 to 09 October 2024 compared with the period from 13 to 17 September 2024 . Within the cloud free analysed areas of about 630,000 km², a total of about 44,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 2,800 km² since the period between 13 to 17 September 2024 . Based on Worldpop population data and the maximal flood water extent ~900,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 13 to 17 October 2024 compared with the period from 05 to 09 October 2024 . Within the cloud free analysed areas of about 630,000 km², a total of about 48,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 3,500 km² since the period between 05 to 09 October 2024 . Based on Worldpop population data and the maximal flood water extent ~965,000 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 01 to 05 April 2022 compared with the period from 20 to 24 April 2022. Within the cloud free analyzed areas of about 16,000,000 km2, a total of about 10,000 km2 of lands appear to be affected with flood waters. Water extent appears to have decreased of about 1,700 km2 since the period between 01 to 05 April 2022. Based on Worldpop population data and the maximal flood water coverage, ~250,000 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 23 to 27 Feb. 2022 compared with the period from 11 to 15 Feb. 2022. Within the cloud free analyzed areas of about 629,000 km2, a total of about 21,200 km2 of lands appear to be affected with flood waters. Water extent appears to have decreased about 8,000 km2 since the period between 11 to 15 Feb. 2022. Based on Worldpop population data and the maximal flood water coverage, ~522,000 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: FL20220314SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 10 to 14 March 2022 compared with the period from 05 to 09 March 2022. Within the cloud free analyzed areas of about 628,000 km2, a total of about 11,400 km2 of lands appear to be affected with flood waters. Water extent appears to have decreased about 12,000 km2 since the period between 05 to 09 March 2022. Based on Worldpop population data and the maximal flood water coverage, ~277,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 20 to 24 October 2024 compared with the period from 13 to 17 October 2024 . Within the cloud free analysed areas of about 625,000 km², a total of about 40,000 km² of lands appear to be affected with flood waters. Water extent appears to have decreased of about 7,900 km² since the period between 13 to 17 October 2024 . Based on Worldpop population data and the maximal flood water extent ~820,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 26 to 30 October 2024 compared with the period from 20 to 24 October 2024 . Within the cloud free analysed areas of about 630,000 km², a total of about 43,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 3,700 km² since the period between 20 to 24 October 2024 . Based on Worldpop population data and the maximal flood water extent ~870,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 23 to 27 November 2024 compared with the period from 03 to 07 November 2024 . Within the cloud free analysed areas of about 630,000 km², a total of about 35,000 km² of lands appear to be affected with flood waters. Water extent appears to main stable since the period between 03 to 07 November 2024 within the cloud free analysed areas. Based on Worldpop population data and the maximal flood water extent ~675,000 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 08 to 12 December 2024 compared with the period from 23 to 27 November 2024 . 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 increased of about 2,200 km² since the period between 23 to 27 November 2024 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: FL20240425SSD** This map illustrates cumulative satellite-detected water using VIIRS in South Sudan between 14 to 18 December 2024 compared with the period from 08 to 12 December 2024 . 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 remain stable since the period between 08 to 12 December 2024 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 04 to 08 January 2025 compared with the period from 14 to 18 December 2024 . Within the cloud free analysed areas of about 630,000 km², a total of about 55,000 km² of lands appear to be affected with flood waters. Water extent appears to have increased of about 16,000 km² since the period between 14 to 18 December 2024 within the cloud free analysed areas. Based on Worldpop population data and the maximal flood water extent ~920,000 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).