Satellite detected water extents from 3 to 10 December 2024 in the Jaffna District, Northern Province, Sri Lanka

**UNOSAT code: FL20240603LKA, GDACS ID: 1102660** This map illustrates satellite-detected water extent in the North Western Province, Sri Lanka, as observed from a Sentinel-1 image acquired on June 4, 2024, at 00:25 UTC. Within the analyzed area of about 4,000 km², a total of about 46 km² of land appears to be affected by floodwaters. The water extent appears to have receded by about 34 km² since May 23, 2024. Based on WorldPop population data and the flood extent, approximately 16,000 people are potentially exposed. 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). 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.

**UNOSAT code: FL20240603LKA, GDACS ID: 1102660** This application provides geospatial information regarding the floods in Sri Lanka in June 2024. Important note: 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.

**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 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: 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 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).