Earth Observation

Two ENVISAT projects related to Nordic applications, sea ice and boreal forest

Microwaves, not sensitive to cloud cover or sun illumination, are important for remote sensing at Nordic latitudes. The Arctic ice cover and the boreal forests are extensive areas important for the living conditions and sensitive to climate changes at these latitudes. ENVISAT offers new possibilities to detect and follow possible changes e.g. due to the greenhouse effect.

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Plans for use of ENVISAT data at DNMI

DNMI, the Norwegian Meteorological Institute, participate in a larger EU-funded project, EnviWave. The overall aim of the projects is to improve the usefulness of ocean wave information derived from Envisat ASAR, Advanced Synthetic Aperture Radar, and RA-2, Radar Altimeter, within applied oceanography, ocean climatology, and meteorology.

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NIVA and the ENVISAT project

The Norwegian Institute for Water Research (NIVA) participate in the geophysical validation of the products from one of the ENVISAT sensors. NIVA contributes in the validation of the MERIS sensor (Medium Resolution Imaging Spectrometer) and takes part in the MERIS and AATSR Validation Team.

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Norwegian Computing Center’s ENVISAT AO projects

The Norwegian Computing Center’s Remote Sensing Group (NCC) is involved in three ENVISAT AO projects. The themes of the projects correspond to key research areas in NCC: automatic detection of marine oil spill, snow monitoring for natural resource and climate applications, and land vegetation monitoring by spectrometry.

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Sea Level Analyses using ENVISAT

For more than a decade remote sensing has successfully been used to monitor the ocean surface and has provided valuable information about the dynamics of the worlds oceans and the marine gravity field. Even though two satellite missions carrying radar altimeters are currently in operation, sea level variability is still observed that cannot be fully explained due to insufficient coverage.

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