National Snow and Ice Data Center

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Arctic methane can come from thawing permafrost where once frozen dead plants and animals begin to decay, releasing the potent greenhouse gas. The other source, known as methyl clathrate, can be found in ice crystals. Learn more about permafrost: bit.ly/3RD3w6S

Despite shrinking federal support for renewable energy, the green electricity revolution is happening in many states and globally. In this week’s show, KGNU host Susan Moran interviews Mark Serreze, director of the National Snow and Ice Data Center: howonearthradio.org/archives/10609

These penitents show no remorse. As striking snow formations—found at high altitudes like the Dry Andes—they form into tall blades of ice that lean toward the sun, resembling a group of repentant figures in hooded cloaks. For more from the NSIDC glossary: bit.ly/4v2bODV

The Moderate Resolution Imaging Spectroradiometer (MODIS) Version 61 data sets, featuring global snow and sea ice data, have been updated. Data are available from the NASA NSIDC Distribute Active Archive Center (DAAC). bit.ly/4tSjt7u

After stalling out for a few days in early May, Arctic sea ice extent is dropping again. Check out NSIDC's ChArctic graph tool to compare Arctic and Antarctic sea ice extent data for any year or combination of years from 1979 to present. bit.ly/4rWyQKH

Cooler weather brought snow to the Rocky Mountains on May 18. For the parched West, the storm helped move the average snow cover line graph to just barely above the West's all-time record low for the year. See NSIDC's Snow Today for more maps and data: nsidc.org/snow-today/sno…

The Indigenous Pavilion first appeared at the 2025 Arctic Science Summit Week (ASSW) in Boulder, CO. Indigenous rights holders and researchers prioritized it for the 2026 ASSW conference in Denmark. Read reflections from NSIDC's ELOKA team member: bit.ly/4wEtGGo

Need soil moisture data? Aquarius has that. Need freeze/thaw data? Aquarius has that, too. Data from its microwave radiometers and scatterometer are available from the NASA NSIDC Distributed Active Archive Center. doi.org/10.5067/OV4R18…

The NASA Advanced Microwave Scanning Radiometer Unified (AMSRU) collection from the NSIDC DAAC includes brightness temperature, sea ice concentration & motion, precipitation, snow depth, snow water equivalent, soil moisture, and vegetation water content. bit.ly/4wo8EM6

NASA’s OpenAltimetry is a free, powerful map-based data visualization and discovery tool for exploring surface elevation profiles from the Ice, Cloud and Elevation Satellite (ICESat) and ICESat-2 mission altimetry data. nsidc.org/openaltimetry

The NOAA@NSIDC program offers over 100 open-access data sets about current and historical sea ice conditions, decades-long records of snow extent, historic glacier photographs, atlases, and even declassified Cold War submarine observations of the Arctic. bit.ly/42TnP2f

Forward processing of Soil Moisture Active Passive (SMAP) L1B Radiometer Half-Orbit Radio Frequency Interference and Calibration Data, Version 6, is now available at the NASA NSIDC Distributed Active Archive Center. Data span March 31, 2015, to present. bit.ly/4tmCJsG

Display browse images from five different NOAA@NSIDC Arctic sea ice products in a spreadsheet-like format. The Browse Image Spreadsheet Tool (BIST) allows you to quickly compare different time periods and regions in a tabular view: nsidc.org/data/bist

Though snow dumped on Colorado this week, it is not enough. Severe water restrictions are already impacting the West, driven by historically low snowpack and worsening drought conditions. Check out the new NSIDC Snow Today analysis post to learn more: bit.ly/4wo9WqD

Want the latest insights on Arctic sea ice, glacier melt, and snow conditions? Subscribe to the NSIDC monthly newsletter to get scientific analysis, news, and data updates delivered directly to your inbox. bit.ly/3Q1Snvv

Arctic sea ice extent has been tracking at record low levels since April 25. Check out the Multisensor Analyzed Sea Ice Extent—Northern Hemisphere (MASIE-NH) Daily Image Viewer to see where Arctic sea ice is now and how it compares to the last four years. nsidc.org/data/masie

NSIDC’s website provides an intuitive design that allows for scientists, policymakers, and educators, regardless of their background, to explore and access data related to the cryosphere. Get started with NSIDC data: nsidc.org/data/user-reso…

The NASA NSIDC Distributed Active Archive Center has updated Moderate Resolution Imaging Spectroradiometer (MODIS) Version 61 data to include browse imagery. bit.ly/4tSjt7u

The High Mountain Asia collection available from the NASA NSIDC Distributed Active Archive Center (DAAC) provides ice, snow, elevation, and gravity data from the Tien Shan-Hindu Kush region to the eastern Himalaya. nsidc.org/data/highmount…

Need tips on accessing data from NASA's Earthdata Cloud? We have all the tips! nsidc.org/data/earthdata…