Calibration and Validation

Calibration and validation (often shortened to cal/val) are processes for ensuring the validity of remotely sensed data. Measurements acquired locally are compared with data from remote sensing satellites.

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This image is a south view from the Skukuza FLUXNET tower in South Africa's Kruger National Park.

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Photograph of a multicell thunderstorm, which may last for several hours and produce severe weather.

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Feb 22, 2003

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The false-color image above is a MODIS image, captured on January 2, 2001, shows the extent of snow cover over the north-central United States.

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Feb 22, 2002

Scientist for a Day

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The image above shows a fifteenth-century woodcut

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The NOAA/NASA Pathfinder Program

The image above shows a snow covered forest

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Mar 9, 1997

The image above shows Daily MSU upper tropospheric temperature (channel 3/4) from Dec 31, 1993.

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Mar 9, 1996

Highs and Lows of Temperature