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The use of Earth Observation Data obtained from instruments on board of satellites has become increasingly important for scientific, commercial and industrial applications. Satellite images can be used to study the ocean primary production, the water quality, environmental parameters control, desertification, forest fires, oil spills control, cartographic and meteorological applications.
The scientific community in Spain has been making use of this technology for years; nevertheless, the demand for satellite data does not correspond with the wide range of applications provided by the currently operating space systems.
The reasons for this can be summarized in two points:
The lack of a reference center offering information about the space systems and the way to access to them.
The complexity involving the processing of satellite digital data to generate added-value products that can be used by the end users.
These circumstances impelled to INTA to promote the installation in Spain of the neccesary infrastructure of a Center for REception, Processing, Archiving and Dissemination of Earth Observation Data: the CREPAD program.
The center was created in 1997 and was financed by the INTA, the Government of Canaries and the CICYT (Comisión Interministerial de Ciencia y Tecnología).
CREPAD is not a thematic center. It has been designed to provide services to allow users the access to information comming from satellites and the development of new technologies and applications related to them.
Since year 2000, CREPAD belongs to the Remote Sensing Service which is part of the Earth Observation, Remote Sensing and Atmosphere Department of INTA.
OBJETIVES
The CREPAD program has become a reference in the remote sensing area, occupying a well-known affluent position not only in our country but also in important international projects. Proof of this are the cooperation agreements already signed with companies and institutions abroad and its outstanding participation in international events, such as congresses and conferences.
CREPAD main goal is to provide users with easy access to Earth Observation products. In order to achieve this, the following tasks are carried out:
Maintenance of the necessary infrastructures for the reception and processing of regional images comming from Earth Observation space missions.
Systematic processing of products that are widely used by the scientific community, such as:
Sea Surface Temperature:
Multi- Channel Sea Surface Temperature - MCSST
No Lineal Sea Surface Temperature - NLSST
Normalized Difference Vegetation Index - NDVI
Marine Chlorophyll - Chlor_a
SST and Chlor_a temporal averages
NDVI maximun Value Composite
Aerosol Optical Thickness – AOT
Diffuse attenuation coefficient - K_490
Archiving and maintenance of a regional store with all the processed data which can be available for end users.
Development of new applications that make use of the information coming from Earth Observation satellites.