Earth observation and natural disasters

 

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As recent events have shown, Earth-imaging satellites are adapted to respond to all types of natural disasters.

 


Satellite imagery is employed increasingly to manage natural of man-made disasters.

 

Civil protection agencies rely on it to support the provision of emergency logistics, food supplies, and medical aid for victims who are often left homeless, and to take stock of post-disaster damage in urban and rural areas.

 



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Satellite data
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Each type of disaster is different: a wildfire is  characterized by its extent, a tsunami by its spread, an earthquake by its element of surprise, a flood by the slow rise of waters, a hurricane by its predictability and an industrial disaster by its location. In each case, satellite data supports effective action.

 

  Type of information
Archive satellite imagery - Basemaps: road access, rivers and streams, topography
- Statistics: urban and residential areas, rural and forest areas
Tasked satellite imagery - Emergency maps
- Impact studies
- Post-disaster damage maps
Satellite monitoring - Daily monitoring of a disaster as it unfolds
- Predictive modelling
- Time-series damage mapping
Priority tasking

Satellites can map any point on the globe, at the required resolution and over large or small areas. The key is to task them as early as possible.

Spot Image offers priority tasking for its full range of satellites (SPOT2, SPOT4, SPOT5, KOMPSAT-2 and FORMOSAT-2) so that coverage of a disaster area can be obtained more quickly. Spot Image is part of the rapid-response team called into action in the event of a disaster by the International Charter on Space and Major Disasters.

 



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Map products
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Spot Image regularly responds to disasters. Three recent events in early 2009 showed the value of its multisensor tasking capability and diverse portfolio of map products.

  • Windstorm in France, 24/01/09
    SPOT 5 was tasked to acquire two strips of the Aquitaine region in Southwest France after Windstorm Klaus. The imagery was used to assess forest damage. Spot Image supplied an initial indication of the storm’s impact to the south of the town of Arcachon from a black-and-white SPOT 5 scene.
     
  • Flooding in Morocco, 02/02/09
    Heavy rainfall led to flooding along 50 km of the course of the Oued Beth. An archive SPOT 5 scene was used to map the area. A tasked SPOT 5 multispectral image provided precise field-level information on crop damage.
     
  • Major bushfires in Australia, 07/02/09
    Strong winds fanned huge bushfires north of Melbourne. FORMOSAT-2 acquired daily imagery to track the advance of the fires and map the extent of fire damage. 

 

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