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Tuesday, January 20, 2009

Damage Assessment for the Gaza Strip (As of 10 January 2009)


Product ID: 1329 - 15 Jan, 2009 - English

Product FOOTPRINT (LAT x LONG, WSG84 Geographic, decimal degrees)
TopLeft: 31.7 x 33.77
BottomRight: 31.1 x 34.97

This map presents a preliminary and on-going satellite-based damage assessment for the whole of the Gaza Strip. Damaged buildings, infrastructure and impact craters have been identified with WorldView-1 satellite imagery acquired on 10 & 6 January 2009, and received at a reduced spatial resolution of 2 meters.

Pre-crisis Ikonos satellite imagery from June 2005 was also used. Affected buildings were classified either as destroyed or severely damaged by standard image interpretation methods. Please note: Buildings not marked in the map as damaged does not imply the buildings are undamaged, only that damages were not identified with the available satellite imagery at the time of map publication. Because of the reduced spatial resolution of this satellite imagery, the confidence level for damage identification within dense urban areas is significantly reduced. It is highly probable, therefore, that the damages currently identified in this map underestimate the actual building and infrastructure damages present on the ground at the time of satellite image acquisition. This damage map will be revised and updated as additional analysis and ground information is available. Please send any additions/corrections to UNOSAT.
Total estimate of identified affected buildings is 400: Affected building sub-totals by damage level: 302 buildings have likely been destroyed & 98 buildings have likely been severely damaged. There are an additional 97 impact craters identified on roads & 395 impact craters identified in cultivated or empty fields.
Map Scale for A3: 1:45,000; Projection : UTM Zone 36 North; Datum : WGS84

Source(s):
Satellite Image (1) : WorldView-1
Resolution : 2m (Reduced Resolution)
Imagery Dates : 10 & 6 January 2009
Copyright : Digital Globe (2008)
Distributed by : Eurimage (6 Jan09)
Satellite Image (2) : Ikonos (2m)
Imagery Copyright : GeoEye 2008
Imagery Date : 6 June 2005
Damage Analysis : UNOSAT
GIS Data : UNRWA, OCHA, GIST, UNOSAT

UNOSAT_GazaStrip_WV_Damage_Overview_10Jan09_Lowres_v1.pdf (1.3MB)

UNOSAT_GazaStrip_WV_Damage_Overview_10Jan09_Highres_v1.pdf (3.6MB)

Source: http://unosat.web.cern.ch/unosat/asp/prod_free.asp?id=120

UNOSAT is the UN Institute for Training and Research (UNITAR) Operational Satellite Applications Programme, implemented in co-operation withthe European Organisation of High Energy Physics (CERN).

UNOSAT is a people-centred programme delivering satellite solutions to relief and development organisations within and outside the UN system to help make a difference in the life of communities exposed to poverty, hazards and risk, or affected by humanitarian and other crises.
People-centred means that we operate keeping in sight the beneficiary needs at the end of the process.

The UNOSAT core team consists of UN fieldworkers as well as satellite imagery experts, geographers, geologists, development experts, database programmers and internet communication specialists. This unique combination gives us the ability to understand the needs of our users and to provide them with suitable, tailored solutions anywhere at any time.

UNOSAT created an extended network of public and private partners, and collaborates with the majority of UN agencies, space agencies and several international initiatives active in satellite technologies field.

Created initially to exploit fully the potential of satellite earth observation, UNOSAT has developed skills in additional technical areas such as satellite navigation and telecommunications and is today looking into the future of integrated solutions.

Our mission is to deliver integrated satellite-based solutions for human security, peace and socio-economic development, in keeping with the mandate given to UNITAR by the UN General Assembly since 1963.

Our goal is to make satellite solutions and geographic information easily accessible to the UN family and to experts worldwide who work at reducing the impact of crises and disasters and plan sustainable development.

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