Satellite detected water extent in Sindh province, Pakistan, as of 15 August 2022

✦ DISCOVERED BY ORIONAIUnited Nations Satellite Centre (UNOSAT)Imagery and land coverPakistan
Pakistan

About this dataset

**UNOSAT code: FL20220808PAK** This map illustrates satellite-detected surface waters in Sindh province, Pakistan as observed from a Sentinel-1 image acquired on 15 August 2022 at 18:36 local time. Within the analyzed area of about 30,000 km2, about 1,550 km2 of lands appear to be flooded. Water extent appears to have decreased of about 325 km2 since the 06 August 2022. within the analyzed area. Based on Worldpop population data and the detected surface waters in the analyzed area, about 410,000 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.

Documentation

UNOSAT datasets and maps are produced using a variety of methods. In general, analysts closely review satellite imagery, often comparing two or more images together, and determine notable changes between the images. For damage assessments, refugee or IDP assessments, and similar analyses, these changes are then manually documented in the vector data by the analyst. For flood extractions, landcover mapping and similar analyses, a variety of automated remote sensing techniques are used to extract the relevant information which is then reviewed and revised as necessary by the analyst. In all cases, resulting data is then loaded into a standardized UNOSAT geodatabase and exported asshapefiles for dissemination. This is a preliminary assessment and has not yet been validated in the field. It is important to consider the characteristics of the source imagery used in the analyses when interpreting results. For damage assessments it should be noted that only significant damage to the structural integrity of the buildings analyzed can be seen in imagery, while minor damage such as cracks or holes may not be visible at all. For flood extractions using radar data it is important to note that urban areas and highly vegetated areas may mask the flood signature and result in underestimation of flood waters. Users with specific questions or concerns should contact unosat@unitar.org to seek clarification.

Related datasets

✦ Suggested by OrionAI
Satellite detected water extent in Sindh province, Pakistan, as of 06 August 2022

**UNOSAT code: FL20220808PAK** This map illustrates satellite-detected surface waters in Satellite detected water in Sindh province, Pakistan as observed from a Sentinel-1 image acquired on 06 August 2022 at 06:25 local time. Within the analyzed area of about 59,000 km2, about 2,700 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters in the analyzed area, about 750,000 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).

Imagery and land cover · United Nations Satellite Centre (UNOSAT)
Satellite detected water extent in Sindh Province, Pakistan as of 31 August 2022

**UNOSAT code FL20220808PAK, GDACS Id: 1101522** This map illustrates satellite-detected surface waters in Sindh Province, Pakistan as observed from a Sentinel-2 image acquired on 31 August 2022 at 10:56 local time. Within the analyzed area of about 25,000 km2, about 11,300 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters in the analyzed area, about 4.6 million 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).

Imagery and land cover · United Nations Satellite Centre (UNOSAT)
Satellite detected water extents in Sindh, Balochistan and Punjab Provinces, Pakistan as of 1 July 2025

**UNOSAT code: FL20250630PAK** This map illustrates the satellite detected water extent in Sindh, Balochistan and Punjab Provinces, Pakistan as observed from Sentinel-2 satellite images acquired on 1 July 2025 at 10:56 local time (05:56 UTC). Within the analyzed area of approximately 84,000 km², about 2,100 km² of land appears to be affected by floodwaters. Based on WorldPop population data and the flood extent, approximately 600,000 people are potentially exposed or living close to the 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).

Water · United Nations Satellite Centre (UNOSAT)
Satellite detected water extents in Sindh, Balochistan and Punjab Provinces, Pakistan as of 11 July 2025

**UNOSAT code: FL20250630PAK** This map illustrates the satellite-detected water extent in Sindh, Balochistan, and Punjab Provinces, Pakistan, as observed from Sentinel-2 satellite images acquired on 11 July 2025 at 10:56 local time (05:56 UTC). Within the analyzed area of approximately 83,000 km², about 4,900 km² of land appears to be affected by floodwaters. The floodwater extent appears to have increased by approximately 2,800 km² since 1 July 2025. Based on WorldPop population data and the flood extent, approximately 1.6 million people are potentially exposed or living close to the 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).

Water · United Nations Satellite Centre (UNOSAT)
Satellite detected water extents in Punjab Province, Pakistan as of 27 & 28 August 2025

**UNOSAT code: FL20250818PAK, GDACS ID: 1103435** This map illustrates the satellite detected water extent in Punjab Province, Pakistan as observed from a Sentinel-1 satellite image acquired on 27-28 August 2025. Within the analyzed area of approximately 88,300 km², about 3,660 km² of land appears to be affected by floodwaters. Based on WorldPop population data and the flood extent, approximately 2.5 million people are potentially exposed or living close to the 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). 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.

Water · United Nations Satellite Centre (UNOSAT)
Satellite detected water extents between 03 and 23 August 2022 over Pakistan

**UNOSAT code: FL20220808PAK** This map illustrates cumulative satellite-detected water using VIIRS in Pakistan between 03 to 23 August 2022. Within the cloud free analyzed areas of about 780,000 km2, a total of about 55,000 km2 of lands appear to be affected with flood waters. Based on Worldpop population data and the maximum flood water coverage, ~19,368,000 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).

Water · United Nations Satellite Centre (UNOSAT)

Indexed by OrionGIS from Humanitarian Data Exchange (HDX). Data is loaded from the publisher's own server when you use it. Permanent link