CEOS IDN Master Directory

A directory of earth sciences data
As stated on their website, The CEOS IDN Master Directory is an international effort developed to assist researchers in locating information on available data sets. The CEOS IDN Master Directory provides free, online access to information on worldwide scientific data in the Earth sciences: geoscience, hydrospheric, biospheric, satellite remote sensing, and atmospheric sciences. The CEOS IDN Master Directory describes data held by university departments, government agencies, and other organizations. IDN also maintains the DIF metadata standard.
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