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Learn
What is the Cryosphere?
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Cryosphere Glossary
epigenetic ice
epigenetic ice
ground ice developed in epigenetic permafrost, or in previously formed syngenetic permafrost.
Topic(s):
frozen ground or permafrost
News & Analyses
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Ice Sheets Today
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Explore Data
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Submit NASA Data to NSIDC DAAC
Submit Data to Other NSIDC Programs
User Resources
Get Started with Data
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Help Center
Data Tools
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
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Land Acknowledgement