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https://nsidc.org/about/about-nsidc/what-we-do/careers Careers | National Snow and Ice Data Center Working at NSIDCThe National Snow and Ice Data Center (NSIDC) is made up of a diverse and dedicated group of data and research scientists, project managers,... ice data centercareers nationalsnow https://nsidc.org/learn/cryosphere-glossary/k Cryosphere Glossary | National Snow and Ice Data Center cryosphere glossary nationalice data centersnow https://nsidc.org/news-analyses/news-stories/arctic-report-card-close-watch-warming-region Arctic Report Card: A Close Watch on a Warming Region | National Snow and Ice Data Center Since its inception, the Arctic Report Card has relied upon NSIDC scientists as authors and/or editors nearly every year, and incorporated NSIDC data in every... arctic report cardice data centerclose watchregion nationalwarming https://nsidc.org/data/data-programs/noaa-nsidc NOAA@NSIDC | National Snow and Ice Data Center ice data centernoaa nsidcnational snow https://nsidc.org/learn/cryosphere-glossary/g Cryosphere Glossary | National Snow and Ice Data Center cryosphere glossary nationalice data centersnow https://nsidc.org/about/about-nsidc/what-we-do/published-research?page=7 Published Research | National Snow and Ice Data Center published research nationalice data centersnow https://nsidc.org/data/amsre/documents Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/our-research/scientists-publications Scientists Publications | National Snow and Ice Data Center ice data centerpublications nationalscientistssnow https://nsidc.org/about/about-nsidc/what-we-do/our-people/stephanie_wong Stephanie Wong | National Snow and Ice Data Center ice data centerstephanie wongnational snow https://nsidc.org/data/nsidc-0077/versions/2 Nimbus-5 ESMR Polar Gridded Brightness Temperatures, Version 2 | National Snow and Ice Data Center ice data centerversion 2national snownimbus5 https://nsidc.org/data/snowex/documents Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/learn/parts-cryosphere/snow/why-snow-matters Why Snow Matters | National Snow and Ice Data Center We all associate snowstorms with cold weather, but snow's influence on the weather and climate continues long after the storm ends. ice data centermatters nationalsnow https://nsidc.org/home Homepage | National Snow and Ice Data Center ice data centerhomepage nationalsnow https://nsidc.org/learn/parts-cryosphere/frozen-ground-permafrost Frozen Ground & Permafrost | National Snow and Ice Data Center What is frozen ground?When water turns into ice in soil, it becomes frozen ground. This frozen soil has a temperature at or below 0°C (32°F). ice data centerfrozen groundnational snowpermafrost https://nsidc.org/data/data-programs/nsidc-daac NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) | National... ice data centerdistributed active archivenasa nationalnsidc daacsnow https://nsidc.org/sea-ice-today/analyses Analyses | National Snow and Ice Data Center analyses national snowice data center https://nsidc.org/about/about-nsidc/what-we-do/published-research Published Research | National Snow and Ice Data Center published research nationalice data centersnow https://nsidc.org/data/user-resources/documents?page=4 Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/news-analyses/about-our-analyses About Our Analyses | National Snow and Ice Data Center As the frozen parts of our planet face rapid and unprecedented change, NSIDC has been sharing how and why its key features are changing. analyses national snowice data center https://nsidc.org/data/masie/masie-faqs MASIE FAQs | National Snow and Ice Data Center 1. What is the difference between this product and the Sea Ice Index? ice data centerfaqs nationalmasiesnow https://nsidc.org/ice-sheets-today/analyses Analyses | National Snow and Ice Data Center Our scientific data analysis articles for the Greenland Ice Sheet melt season are typically published from April 1 to November 1. analyses national snowice data center https://nsidc.org/learn/cryosphere-glossary/r Cryosphere Glossary | National Snow and Ice Data Center cryosphere glossary nationalice data centersnow https://nsidc.org/rain-on-snow/about About AROSS | National Snow and Ice Data Center Rain on Snow (ROS) events occur when rain falls onto an existing snowpack and freezes, forming an ice crust that can have severe consequences to wildlife,... ice data centernational snow https://nsidc.org/learn/cryosphere-glossary?page=4 Cryosphere Glossary | National Snow and Ice Data Center cryosphere glossary nationalice data centersnow https://nsidc.org/data/user-resources/documents?page=3 Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/data/icesat-2/products ICESat-2 Product Overviews | National Snow and Ice Data Center ATLAS/ICESat-2 processing begins with two Level 1 products: ATL01, which computes photon times of flight, and ATL02, which corrects them for temperature and... ice data centericesat 2product overviewsnational snow https://nsidc.org/our-research Our Research | National Snow and Ice Data Center The cryosphere is a global system stretching from the Arctic to the Antarctic and includes all the snow, ice, and other frozen regions across the planet. research national snowice data center https://nsidc.org/about/about-nsidc/what-we-do/our-people/andrew_barrett Andrew Barrett | National Snow and Ice Data Center ice data centernational snowandrewbarrett https://nsidc.org/data/seaice_index/faq FAQ | National Snow and Ice Data Center The Sea Ice Index provides a quick look at Arctic- and Antarctic-wide changes in sea ice. ice data centerfaq nationalsnow https://nsidc.org/data/g02180/versions/1 SHEBA Reconnaissance Imagery, Version 1 | National Snow and Ice Data Center version 1 nationalice data centershebareconnaissanceimagery https://nsidc.org/about/about-nsidc/what-we-do/our-history Our History | National Snow and Ice Data Center NSIDC's roots go back to history national snowice data center https://nsidc.org/learn/parts-cryosphere/snow Snow | National Snow and Ice Data Center What is snow? Snow is precipitation that forms when water vapor freezes. It is not frozen rain, but a crystallization of ice that typically forms in clouds. ice data centersnow national https://nsidc.org/sea-ice-today/analyses/spring-air Spring is in the air | National Snow and Ice Data Center Arctic sea ice extent for March set a record low in the 47-year satellite data record. Extent was below average everywhere except the East Greenland Sea. ice data centerair nationalspringsnow https://nsidc.org/our-research/latest-stories Latest Stories | National Snow and Ice Data Center stories national snowice data centerlatest https://nsidc.org/data/icesat/documents Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/data/masie/about-masie About MASIE | National Snow and Ice Data Center MASIE-NH stands for the Multisensor Analyzed Sea Ice Extent – Northern Hemisphere. ice data centernational snowmasie https://nsidc.org/data/modis/version-history Version History | National Snow and Ice Data Center The following information summarizes the differences between various versions of MODIS data. version history nationalice data centersnow https://nsidc.org/about/about-nsidc/what-we-do What We Do | National Snow and Ice Data Center From the Arctic to the Antarctic, snow and ice play a vital role in regulating Earth’s climate and providing freshwater resources to people, plants, and... ice data centernational snow https://nsidc.org/sea-ice-today/maps Maps | National Snow and Ice Data Center Sea ice differs between the Arctic and Antarctic, primarily because of their different geographies. The Arctic is a semi-enclosed ocean, almost completely... ice data centermaps nationalsnow https://nsidc.org/learn/cryosphere-glossary?page=8 Cryosphere Glossary | National Snow and Ice Data Center cryosphere glossary nationalice data centersnow https://nsidc.org/about/about-nsidc/what-we-do/our-people/julienne_stroeve Julienne Stroeve | National Snow and Ice Data Center ice data centernational snowjuliennestroeve https://nsidc.org/about/protecting-your-privacy Protecting Your Privacy | National Snow and Ice Data Center Thank you for visiting the National Snow and Ice Data Center's (NSIDC) website. ice data centerprivacy nationalprotectingsnow https://nsidc.org/about/about-nsidc/what-we-do/our-people/ann_windnagel Ann Windnagel | National Snow and Ice Data Center ice data centernational snowann https://nsidc.org/ice-sheets-today/about-project About the project | National Snow and Ice Data Center Ice Sheets Today offers the latest satellite data and scientific analyses on surface melting of Earth's two ice sheets: Greenland in the Northern Hemisphere,... ice data centerproject nationalsnow https://nsidc.org/learn/ask-scientist?page=1 Ask a Scientist | National Snow and Ice Data Center These articles provide answers to frequently asked questions related to Earth's frozen realms. ice data centernational snowaskscientist https://nsidc.org/data/icebridge/help-articles Help Articles | National Snow and Ice Data Center help articles nationalice data centersnow https://nsidc.org/data/viirs/documents Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/sea-ice-today/analyses/race-bottom The race to the bottom | National Snow and Ice Data Center With the waning of sunlight, the pace of sea ice loss in the Arctic is slowing, and the seasonal minimum is expected in mid-September. While a new record low... ice data centernational snowracebottom https://nsidc.org/about/media For the Media | National Snow and Ice Data Center Welcome to the National Snow and Ice Data Center. Please contact us through the links in the side bar of this page and also make sure to explore our... ice data centermedia nationalsnow https://nsidc.org/ice-sheets-today/analyses/august-greenland-melt-rain-and-snow August in Greenland: Melt, rain, and snow | National Snow and Ice Data Center A strong and persistent melt event occurred in southern Greenland in mid-August 2025, preceded by extensive rain in the same area. Snow cover following the... ice data centersnow nationalaugustgreenlandmelt https://nsidc.org/sea-ice-today/analyses/peak-summer-depths-winter The peak of summer, the depths of winter | National Snow and Ice Data Center At the end of July 2025, daily sea ice extent in both hemispheres ranked third lowest in the 47-year satellite record. ice data centerwinter nationalpeaksummerdepths https://nsidc.org/openaltimetry OpenAltimetry | National Snow and Ice Data Center ice data centernational snow https://nsidc.org/data/programs/eloka ELOKA | National Snow and Ice Data Center The Exchange for Observations and Local Knowledge of the Arctic (ELOKA) program at NSIDC is funded by the National Science Foundation (NSF) and works with... ice data centernational snoweloka https://nsidc.org/data/smap/documents Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/about/about-nsidc/what-we-do/our-people/elizabeth_sheffield Elizabeth Sheffield | National Snow and Ice Data Center ice data centernational snowelizabethsheffield https://nsidc.org/about/about-nsidc/what-we-do/our-people/lisa_booker Lisa Booker | National Snow and Ice Data Center ice data centernational snowlisabooker https://nsidc.org/data/icesat-2/help-articles Help Articles | National Snow and Ice Data Center help articles nationalice data centersnow https://nsidc.org/learn/parts-cryosphere/arctic-weather-and-climate/science-arctic-weather-and-climate The Science of Arctic Weather and Climate | National Snow and Ice Data Center Factors affecting Arctic weather and climateJust like other areas on Earth, weather and climate in the Arctic depend on a lot of variables, including latitude... national snow icearctic weatherdata centerscienceclimate https://nsidc.org/news-analyses/news-stories/charis-project-summary CHARIS project summary | National Snow and Ice Data Center The Contribution to High Asia Runoff (CHARIS) project began in 2012 and ended in 2019. The project aimed to distinguish between input from seasonal snow melt... ice data centerproject summarynational snowcharis https://nsidc.org/data/aso/documents Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/data/amsre/version-history Version History | National Snow and Ice Data Center This page provides details of the processing and algorithm history for all versions of AMSR-E data products. version history nationalice data centersnow https://nsidc.org/data/aquarius/help-articles Help Articles | National Snow and Ice Data Center help articles nationalice data centersnow https://nsidc.org/about/about-nsidc/what-we-do/our-people/noor_jehan_johnson Noor jehan Johnson | National Snow and Ice Data Center ice data centernational snownoorjehanjohnson https://nsidc.org/data/google_earth Google Earth Activities | National Snow and Ice Data Center The National Snow and Ice Data Center offers some of our data in the form of images. From these, we have created Google Earth files that enable you to view... ice data centergoogle earthactivities nationalsnow https://nsidc.org/learn/cryosphere-glossary/ablation-area ablation area | National Snow and Ice Data Center the area of a glacier where more glacier mass is lost than gained. ice data centerarea nationalablationsnow https://nsidc.org/learn/cryosphere-glossary/ablation ablation | National Snow and Ice Data Center (1) combined processes (such as sublimation, fusion or melting, evaporation) which remove snow or ice from the surface of a glacier or from a snow-field; also... ice data centernational snowablation https://nsidc.org/learn/parts-cryosphere/snow/quick-facts-about-snow Quick Facts About Snow | National Snow and Ice Data Center What is snow?Snow is precipitation that forms when water vapor freezes. ice data centerquick factssnow national https://nsidc.org/data/measures/documents Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/about/about-nsidc/what-we-do/our-people/patrick_graham Patrick Graham | National Snow and Ice Data Center ice data centernational snowpatrickgraham https://nsidc.org/about/about-nsidc/what-we-do/published-research?page=8 Published Research | National Snow and Ice Data Center published research nationalice data centersnow https://nsidc.org/learn/cryosphere-glossary/i Cryosphere Glossary | National Snow and Ice Data Center cryosphere glossary nationalice data centersnow https://nsidc.org/learn/parts-cryosphere/frozen-ground-permafrost/why-frozen-ground-matters Why Frozen Ground Matters | National Snow and Ice Data Center Since permafrost contains lots of organic matter like frozen plants and, occasionally, animals within, it holds an enormous amount of carbon. matters national snowice data centerfrozen ground https://nsidc.org/data/soac Satellite Observations of Arctic Change (SOAC) | National Snow and Ice Data Center What can satellite data tell us about one of Earth’s coldest regions? These maps of the Arctic are generated from passive microwave data collected by NASA... ice data centersatellite observationsnational snowarcticchange https://nsidc.org/about/about-nsidc/what-we-do/our-people/kevin_schaefer Kevin Schaefer | National Snow and Ice Data Center ice data centernational snowkevinschaefer https://nsidc.org/about/about-nsidc/what-we-do/our-people/florence_fetterer Florence Fetterer | National Snow and Ice Data Center ice data centernational snowflorence https://nsidc.org/data/geophysical-measurements By Geophysical Measurements | National Snow and Ice Data Center ice data centernational snowgeophysicalmeasurements https://nsidc.org/news-analyses/news-stories/nsidc-american-geophysical-union-agu-meeting-2025 NSIDC at the American Geophysical Union (AGU) Meeting 2025 | National Snow and Ice Data Center Representatives from NSIDC will be attending the American Geophysical Union (AGU) Annual Meeting 2025, either virtually or in person in New Orleans, to share... american geophysical unionice data centermeeting 2025national snownsidc https://nsidc.org/about/contact-us Contact Us | National Snow and Ice Data Center User Services and general informationEmail: nsidc@nsidc.orgPhone: +1 303.492.6199 ice data centerus nationalsnow https://nsidc.org/news-analyses/news-stories News & Stories | National Snow and Ice Data Center As Earth’s frozen regions change rapidly, NSIDC is committed to growing its research and open access data to better understand these changes. news stories nationalice data centersnow https://nsidc.org/scicex SCICEX: Submarine Arctic Science Program | National Snow and Ice Data Center The Submarine Arctic Science Program, SCICEX, is a federal interagency collaboration among the operational Navy, research agencies, and the marine research... ice data centerarctic scienceprogram nationalsubmarinesnow https://nsidc.org/our-research/featured-projects/navigating-new-arctic-community-office Navigating the New Arctic Community Office | National Snow and Ice Data Center Climate change has brought rapid, dramatic changes to the Arctic, affecting ecosystems, communities, and infrastructure in unprecedented ways. ice data centernew arcticcommunity officenational snownavigating https://nsidc.org/sea-ice-today/analyses/ringing-new-year-warm-arctic Ringing in the new year with a warm Arctic | National Snow and Ice Data Center Air temperatures in December 2024 were above average over the entire Arctic Ocean, continuing the pattern set in November. Average Arctic sea ice extent for... ice data centernew yeararctic nationalringingwarm https://nsidc.org/learn/what-cryosphere What is the Cryosphere? | National Snow and Ice Data Center What is the cryosphere?The cryosphere refers to Earth’s ice in all its forms. The term comes from the Greek word for icy cold—krios. The cryosphere includes: ice data centernational snowcryosphere https://nsidc.org/sipn SIPN | National Snow and Ice Data Center The Sea Ice Prediction Network (SIPN) is a collaborative network of scientists and stakeholders working to improve and communicate sea ice prediction knowledge... ice data centernational snowsipn https://nsidc.org/rain-on-snow Arctic Rain On Snow Study (AROSS) | National Snow and Ice Data Center Rain on Snow (ROS) events occur when rain falls onto an existing snowpack and freezes, forming an ice crust that can have severe consequences to wildlife,... ice data centerarcticrainsnowstudy https://nsidc.org/learn/cryosphere-glossary/z Cryosphere Glossary | National Snow and Ice Data Center cryosphere glossary nationalice data centersnow https://nsidc.org/about/about-nsidc/what-we-do/our-people/jonathon_cavitt Jonathon Cavitt | National Snow and Ice Data Center ice data centernational snowjonathon https://nsidc.org/about/about-nsidc/what-we-do/our-people/erik_ramos Erik Ramos | National Snow and Ice Data Center ice data centernational snowerikramos https://nsidc.org/about/about-nsidc/what-we-do/our-people/amy_steiker Amy Steiker | National Snow and Ice Data Center ice data centernational snowamy https://nsidc.org/about/about-nsidc/what-we-do/published-research?page=3 Published Research | National Snow and Ice Data Center published research nationalice data centersnow https://nsidc.org/sea-ice-today/analyses/sluggish-freeze-warming-north Sluggish freeze up in the warming North | National Snow and Ice Data Center Following the pattern seen in recent years, autumn freeze up has been slow in the Arctic, reflecting the growing heat gain in the ocean mixed layer during... ice data centernorth nationalsluggishfreezewarming https://nsidc.org/news-analyses News & Analyses | National Snow and Ice Data Center analyses national snowice data centernews https://nsidc.org/data/seaice_index/compare-animate Compare & Animate | National Snow and Ice Data Center Use the interactive tools below to compare sea ice trends and anomalies and to animate monthly extent, concentrations, anomalies, and trends. ice data centernational snowcompareanimate https://nsidc.org/learn/cryosphere-glossary/m Cryosphere Glossary | National Snow and Ice Data Center cryosphere glossary nationalice data centersnow https://nsidc.org/learn/cryosphere-glossary/b Cryosphere Glossary | National Snow and Ice Data Center cryosphere glossary nationalice data centersnow https://nsidc.org/learn/parts-cryosphere/glaciers/why-glaciers-matter Why Glaciers Matter | National Snow and Ice Data Center Glaciers, slow-moving rivers of ice, have sculpted mountains and carved valleys throughout Earth's history. They continue to flow and shape the landscape in... ice data centermatter nationalglacierssnow https://nsidc.org/data/glims/documents Documents | National Snow and Ice Data Center documents national snowice data center https://nsidc.org/learn/parts-cryosphere/glaciers/glacier-quick-facts Glacier Quick Facts | National Snow and Ice Data Center What is a glacier?A glacier is an accumulation of ice and snow that slowly flows over land. ice data centerquick factsnational snowglacier https://nsidc.org/data/amsru/version-history Version History | National Snow and Ice Data Center This page provides details of the processing and algorithm history for all versions of AMSR Unified data products. version history nationalice data centersnow https://nsidc.us12.list-manage.com/subscribe?u=3eed3adeb8ad0950624ae61f0&id=17c872e4d2 National Snow and Ice Data Center National Snow and Ice Data Center Email Forms ice data centernational snow