Satellite detected water extent in Abu Hamad Locality, River Nile State, Sudan as of 19 August 2024

✦ DISCOVERED BY ORIONAIUnited Nations Satellite Centre (UNOSAT)WaterSudan
Sudan

About this dataset

**UNOSAT code: FL20240826SDN, GDACS ID: 1102854** This map illustrates satellite-detected water extent in Abu Hamad Locality, River Nile State, Sudan as observed from a Sentinel-2 satellite image acquired on 19 August 2024 at 10:06 local time (08:06 UTC). Within analysed area of about 1,800 km², a total of about 28 km² of land appears to be affected by floodwaters. Based on Worldpop population data and the flood extent, approximately 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 the United Nations Satellite Centre (UNOSAT)

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
Sudan - Possible Flood Water & Saturated Soil over Abu Hamad Area, River Nile State

This map illustrates satellite-detected possible flood water & saturated soil over Abu Hamad area in River Nile State, Sudan, extracted from Spot-6 imagery of 14 August 2016. UNOSAT analysis shows an increase of floods water / saturated soil around Nileside west and Abu Tin areas. This analysis has not yet been validated in the field. Please send ground feedback to UNITAR - UNOSAT

Environment · United Nations Satellite Centre (UNOSAT)
Satellite detected water extent in Khartoum, White Nile, Aj Jazirah and Sennar States, Sudan as of 8 September 2024

**UNOSAT code: FL20240826SDN, GDACS ID: 1102854** This map illustrates satellite-detected water extents Khartoum, White Nile, Aj Jazirah and Sennar States, Sudan as observed from a Sentinel-2 image acquired on 8 September 2024 at 08:06 UTC. Within the analysed area of about 80,000 km², a total of about 6,500 km² of land appears to be affected by floodwaters. Based on Worldpop population data and the flood extent, approximately 800,000 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)
Preliminary satellite-derived impact assessment on health facilities, Abu Hamad City, Abu Hamad Locality, River Nile State, 2 September 2024

**UNOSAT code: FL20240826SDN, GDACS ID: 1102854** Status: Affected structures detected Further action(s): continue monitoring Summary of findings: Flooded areas and evidence of overflow were observed in Hamad City, Abu Hamad Locality, River Nile State, on August 29, 2024. Alshorta, Alshaheed Gamal (Family Health Center), and Abu Hamad Hospital are likely affected by the floodwaters. Yashgeen (Family Health Unit) and Alsilim (Family Health Center) appear to be unaffected by the floodwaters.

Health · United Nations Satellite Centre (UNOSAT)
Satellite detected water extent in Tawkar Locality, Red Sea State, Sudan as of 26 August 2024

**UNOSAT code: FL20240826SDN, GDACS ID: 1102854** This map illustrates satellite-detected water extent in Tawkar Locality, Red Sea State, Sudan as observed from a Sentinel-2 satellite image acquired on 26 August 2024 at 10:06 local time (09:56 UTC). Within analysed area of about 4,600 km², a total of about 783 km² of land appears to be affected by floodwaters. Based on Worldpop population data and the flood extent, approximately 33,400 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 the United Nations Satellite Centre (UNOSAT)

Imagery and land cover · United Nations Satellite Centre (UNOSAT)
Satellite detected waters extent in Barbar District, River Nile State, Sudan as of 20 August 2022

**UNOSAT code: FL20220816SDN** This map illustrates satellite-detected surface waters in Barbar district, River Nile State as observed from a Sentinel-2 image acquired on 20 August 2022 at 10:25 local time. Within the analyzed area of about 780 km2, about 43 km2 of lands appear to be flooded. Based on Worldpop population data and the detected surface waters in the analyzed area, about 7,800 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 United Nations Satellite Centre (UNOSAT).

Water · United Nations Satellite Centre (UNOSAT)
Satellite detected water extents between 11 and 15 August 2023 over South Sudan

**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).

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