Remote Sensing Structural Damage Assessment

CONCLUSIONS Open-source data dated April 1, 2024 (from UNOSAT, OpenStreetMap, and LandScan Global) was used for the analysis of housing damage, as well as to provide an inial esmate of probable shelter and housing recovery needs. This data shows that in northern Gaza, approximately 78% of the building stock had sustained damage to varying degrees. The evolving situaon in the Gaza strip has since expanded considerably to the south since the release of the last UNOSAT dataset, and it is expected that this region will have sustained similar levels of damage as the areas to the North. It is also evident from the damage data. It is esmated that approximately 72% of the buildings in Khan Younis and 27% of the buildings in Deir Al-Balah appear to have sustained various levels of damage. In this case, approximately damage levels are now likely to be around 1,10,000+ structures (mostly residenal), leaving an esmated 1.2 million+ people without adequate housing. The UN Shelter Cluster reports 1.9 million internally displaced persons (IDPs) in Gaza, nearly 85% of the populaon. Miyamoto intends to update this Technical Assessment report as soon as more up-to-date datasets on damage become available. On-ground rapid assessments will, of course, be required to verify these remote-data-based damage assessments and more accurately idenfy the shelter and housing recovery needs of the affected populaon. However, inial analysis indicates that about 50% of damaged structures are likely only moderately damaged and are readily repairable. Housing recovery efforts in Ukraine and other major global disasters have shown that rapid repairs to moderately damaged structures can be one of the fastest and most dignified ways to address immediate shelter needs as and when the current situaon stabilizes, and safe access can be assured. The early provision of technical support and cash for rapid repairs to moderately damaged housing stock may diminish the need for other costly and oen prolonged emergency shelter soluons while providing a rapid pathway to a durable housing soluon for many of those currently displaced.

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