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Learn
What is the Cryosphere?
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Cryosphere Glossary
ice cluster
ice cluster
a concentration of sea ice, covering 100's of square kilometers, which is found in the same region every summer.
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sea ice
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Arctic Sea Ice News & Analysis (ASINA)
Ice Sheets Today
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Submit NASA Data to NSIDC DAAC
Submit Data to Other NSIDC Programs
User Resources
Get Started with Data
Data Announcements
Help Center
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Documents
Levels of service
NASA Earthdata Forum
Data Programs
About our Programs
NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC)
NOAA at NSIDC
Exchange for Observations and Local Knowledge of the Arctic (ELOKA)
Data Policies
Our Research
Learn
What is the Cryosphere?
Parts of the Cryosphere
Arctic Weather & Climate
Frozen Ground & Permafrost
Glaciers
Ice Sheets
Ice Shelves
Sea Ice
Snow
Ask a Scientist
Cryosphere glossary
About
About NSIDC
What we do
Our People
Published Research
Our History
Diversity, Equity & Inclusion
Careers
For the Media
Contact Us
Citation Policies
Web Policy
Land Acknowledgement