Homepage | National Snow and Ice Data Center
Ice sheets are masses of glacial land ice extending more than 50,000 square kilometers (20,000 square miles). There are only two ice sheets worldwide today, the Antarctic and Greenland ice sheets.
Ice Sheets Today - National Snow and Ice Data Center
2024年11月19日 · Water carves into the Greenland Ice Sheet, exposing layers of dust. At the edge of the ice sheet, surface melt releases old layers of dirt, dust, pollen, or ash that have traveled thousands of years into the ice.
Sea Ice Today - National Snow and Ice Data Center
2024年12月4日 · Sea ice data is updated daily, with a one-day lag. On occasion, there is data delay which is usually resolved within a few days. The orange line in extent and concentration images (left and middle) and the gray line in the time series (right) indicate 1981 to 2010 average extent for the day shown.
Snow Today | National Snow and Ice Data Center
2024年6月5日 · Snow-covered area in May 2024 across the western United States was 56 percent above average (Table 1), at 156,000 square kilometers (60,000 square miles) of snow cover, ranking third highest in the 24-year satellite record.
Analyses | National Snow and Ice Data Center
2024年11月4日 · The National Snow and Ice Data Center (NSIDC) has launched an upgraded and streamlined Sea Ice Today website. The new site replaces the Arctic Sea Ice News & Analysis (ASINA) website but continues the NASA-funded work on near-real-time assessments, daily data images, and monthly analyses on sea ice conditions that began in 2007.
Data | National Snow and Ice Data Center
Open access data to inform researchers, policymakers, and othersNSIDC’s data management programs focus on preserving and providing access to cryospheric data and related geophysical data.
Learn - National Snow and Ice Data Center
Quick facts, basic science, and information about snow, ice, and why the cryosphere matters The cryosphere includes all of the snow and ice-covered regions across the planet.
Get Started with NSIDC Data - National Snow and Ice Data Center
The data set landing page contains several sections, which can be navigated to via a convenient sidebar menu: Overview: A brief summary of the data set and what it contains, including parameters, resolution, and other metadata. Data Access & Tools: Contains options for accessing the data, as well as tools to work with the data. Documentation: Links to user guides and …
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 surrounded by land.
Our Research | National Snow and Ice Data Center
— Credit: Agnieszka Gautier/NSIDC Areas of research. From the physical sciences to the social sciences, NSIDC scientists work on a diverse mixture of research projects that focus on various aspects of the cryosphere and how it impacts society, including snow, glaciers, ice caps, ice sheets, sea ice, permafrost, and more.