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Snow and Ice

Frozen water is an essential resource across our planet and part of its natural air conditioning. With most of Earth’s freshwater stored in snow and ice, NASA uses innovative methods to study the past, present, and future of Earth’s frozen places.

Where Does NASA Fit?

NASA’s satellites, aircraft, and field campaigns help scientists build a better understanding of snow and ice around the globe. Through decades of missions to monitor Earth’s frozen landscapes, NASA provides the data necessary for scientists to continuously monitor Earth's largest store of fresh water. Snow and ice also cool Earth’s surface, helping stabilize the climate system by reflecting sunlight back to space. NASA’s observations help scientists learn about the effects of melting snow and ice on both local and global scales. 

Snow and Ice Essentials

From freeze to thaw, NASA data helps researchers assess the Earth and its response to changes over time.

A top-down photo shows a glacier running from north to south amid snowy, mountainous terrain. The glacier flows into a narrow lake where many small icebergs are visible floating on the water.

Keeping Tabs on North Cascades Glaciers

Scientists use satellites in orbit and boots on the ice to monitor glacial changes on the flanks of Mount Baker and elsewhere in Washington state.

Satellite data shows that Antarctic sea ice reached its lowest maximum extent on record on September 10, 2023.

NASA National Snow and Ice Data Center

The NSIDC manages cryospheric data from NASA Earth-observing satellite missions, airborne campaigns, and field observations.

animation of changing polar ice

Cryospheric Sciences at NASA

NASA uses satellite and aircraft observations to understand the factors controlling changes in the ice and its interaction with the ocean, atmosphere, solid earth, and solar radiation.

Show Me the Data