Unexpected ice

Why is Antarctic sea ice is defying predictions? Scientists explore reasons behind the increasing ice cover in the Southern Ocean.

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A baffling signal in the tropics

Scientists investigate massive cloud systems that form over the Indian Ocean and factor into global atmospheric heat exchange and supersize weather.

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Mercury raining

The Arctic atmosphere does its own spring cleaning, but the process causes mercury to rain from the sky. Does this mercury return to the atmosphere, or does it wind up in the food chain?

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Signs of snow

Aircraft probe the Arctic to help scientists better measure sea ice thickness and the depth of snow on top of it.

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NASA Distributed Active Archive Center at NSIDC

The NSIDC Distributed Active Archive Center (DAAC) processes, archives, documents, and distributes data from NASA's past and current Earth Observing System (EOS) satellites and field measurement programs. The NSIDC DAAC focuses on the study of the cryosphere. Read more »

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