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SPIE Professional January 2012

Satellites respond to humanitarian needs

logo, SPIE Photonics for a Better World

A review of crisis response using Earth observation techniques is now available online. The Respond Atlas outlines global events where remote sensing assisted in preparing for and responding to disasters and humanitarian crises.

The Respond project began in 2004 as a European Global Monitoring for Environment and Security (GMES) initiative. During its five years of service, hundreds of maps were produced to assist in relief efforts linked to crises such as the aftermath of Cyclone Nargis, the 2004 Asian tsunami and even Sudan's refugee situation in Darfur.

The project has recently released a portfolio of its services, called the Respond Atlas.

"Respond has successfully demonstrated the utility and effectiveness of using satellite-derived services to support the international humanitarian community," said Francesco Pisano, manager of the UN Operational Satellite Applications Programme (UNOSAT). "It was able to provide important information for crisis response operations and to open the way to the use of geospatial information in decision-making processes in humanitarian contexts."

Respond's users came from five main groups: EU bodies, UN organizations, international humanitarian aid organizations, donor governments, and international non-governmental organizations. Over the course of the project, more than 38 user organizations signed up to receive Respond services.

  Artist impression of European Data Relay Satellite (EDRS) system.
Photo courtesy of ESA.
Mapping recovery efforts

The service provided mapping far beyond the disaster response phase by supporting recovery, rehabilitation, and reconstruction activities. Earth observation-derived mapping was used for years following the 2004 Asian tsunami, and the products were also used for resettlement.

The maps were produced by a network of public and private value-adding centers such as DLR ZKI (Germany), SERTIT (France), and Geneva-based UNITAR/UNOSAT. The network was led by UK-based Astrium Geo-Information Services.

Respond also worked closely with the International Charter 'Space and Major Disasters,' an international collaboration that gives rescue and aid workers rapid access to satellite data in the event of a disaster.

Not all disasters have a rapid onset. Some, such as drought and famine, can grow for months before being recognized as a crisis needing international intervention. Once an emergency was recognized and assistance requested, Respond provided reference mapping from archived satellite imagery to compare to newly acquired satellite data specifically tasked to monitor the event.

Satellite maps also supported programs to help internally displaced persons and refugees. Customized maps were delivered to UN refugee agency and other non-governmental organizations for the planning and placement of shelters, as well as life-line services such as power, water, and sanitation. Maps were also used for rehearsing evacuation plans.

  Flood monitoring
 Earthquake damage mapping
  Earthquake damage mapping

  Floods in Bangladesh

Today, the members of the Respond consortium are actively engaged in realizing Earth observation capacities for crisis response.

Continued availability of Earth observation data is prerequisite for the continuity of crisis mapping services in the long term. The upcoming Sentinel missions — developed specifically for the operational needs of the GMES program — are essential to the supply of rapid multisensor coverage over disaster-stricken areas.

-Source: European Space Agency

Photonics for a Better World

Join the discussion celebrating the many ways that photonics are applied in creating a better world at PhotonicsforaBetterWorld.org.

Read more articles in the SPIE Professional series at spie.org/betterworld.

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DOI: 10.1117/2.4201201.09

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