Preliminary satellite-derived flood assessment - Bu’aale District, Middle Juba Region, Somalia - 09 November 2023

✦ DISCOVERED BY ORIONAIUnited Nations Satellite Centre (UNOSAT)WaterSomalia
Somalia

About this dataset

**UNOSAT code FL20231105SOM** Status: Increased water extent along the Jubba River Further action(s): continue monitoring Summary of findings: - Increased water extent along the Jubba River observed as of 08 November 2023; - Affected structures and Inundated roads observed in Dujuuma and Banta villages, Bu’aale District, Middle Juba Region as of 08 November 2023.

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
Preliminary satellite-derived flood assessment -Bardere City, Baardheere District, Gedo Region, Somalia

**UNOSAT code FL20231105SOM** Status: Increased water extent along the Jubba River Further action(s): continue monitoring Summary of findings: - Increase of water extent along the Jubba River observed as of 12 November 2023; - Affected structures and agricultural areas. We also observe inundated roads in Bardere City, in the Gedo Region as of 12 November 2023;

Water · United Nations Satellite Centre (UNOSAT)
Satellite detected water extent in Bu'aale City, Bu'aale District, Middle Juba Region, Somalia, 22 November 2023

**UNOSAT code: FL20231105SOM** This map illustrates satellite-detected surface waters in Bu'aale City, Bu'aale District, Middle Juba Region, Somalia as observed from a Worldview-3 image acquired on 22 November 2023 at 07:35 UTC. Within the analysed area of about 1,000 hectares about 800 hectares of land appear to be flooded. Compared to the situation on 13 November, the flood-affected area in the analysed extent increased about 20 hectares and the number of flood-affected buildings increased about 330. 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 Over Saakow and Buaale Districts, Middle Juba, Somalia

This map illustrates satellite-detected flood water extent over the districts of Saakow and Bu'aale, Middle Juba, Somalia. The mostly affected areas are in the district of Saakow, where 365 km2 of land are flooded. In total, 19 settlements are within the inundated zones: 12 in Buaale and 7 in Saakow; however, more than 100 settlements, are within 500 meters distance from the flooded areas and might be affected due to the proximity to Juba River. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR - UNOSAT.

Water · United Nations Satellite Centre (UNOSAT)
Satellite detected water extent in Jilib City, Jilib District, Middle Juba Region, Somalia, 15 November 2023

**UNOSAT code FL20231105SOM** This map illustrates satellite-detected surface waters in Jilib City, Jilib District, Middle Juba Region, Somalia as observed from a Pleiades image acquired on 14 and 15 November 2023. Within the analysed area of about 215 km2 about 123 km2 of land appears to be flooded. Furthermore, within the analysed area about 2,800 buildings are identified as potentially affected by the 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).

Imagery and land cover · United Nations Satellite Centre (UNOSAT)
Satellite detected water extent in Juba Hoose Region, Somalia as of 07 November 2023

**UNOSAT code FL20231105SOM** This map illustrates satellite-detected surface waters in Jilib District, Juba Dhexe & Afmadow Jamaame District, Juba Hoose Region, Somalia as observed from a Sentinel-1 image acquired on 07 November 2023 at 02:54 UTC. Within the analysed area of about 7,300 km², about 60 km² of land appear to be flooded. 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.

Imagery and land cover · United Nations Satellite Centre (UNOSAT)
Preliminary satellite-derived flood assessment - Jowhar District, Middle Shabelle Region, Somalia - 09 November 2023

**UNOSAT code FL20231105SOM** Status: Affected structures and inundated roads Further action(s): continue monitoring Inundated agricultural areas observed along the Shabelle River as of 08 November 2023; Affected structures observed in Jowhar City, Jowhar District, Middle Shabelle Region as of 08 November 2023; Potentially affected structures observed in Moyka Village, Jowhar District, Middle Shabelle Region as of 08 November 2023. Inundated roads observed in Jowhar City and Moyka Village, Jowhar District, Middle Shabelle Region as of 08 November 2023.

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