Science of Snow - National Snow and Ice Data Center
The sun emerges after heavy snow hit Mount Vernon, Iowa. — Credit: Rich Herrmann/Flickr Snow on the ground. The character of the snow surface after a snowfall depends on the original form …
Quick Facts About Snow | National Snow and Ice Data Center
A little girl devours snow. — Credit: Brett/stock.adobe.com The fresher the snow, the less contaminated it can be with things like algae, bacteria, and pollution. However, as pollution …
Snow Today | National Snow and Ice Data Center
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 …
Sea Ice Today | National Snow and Ice Data Center
Jan 6, 2025 · 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 …
Arctic Weather and Climate | National Snow and Ice Data Center
This bustling harbor in Ilulissat, Greenland, is filled with various kinds of water vessels. Summers in Greenland turn Greenland green. — Credit: Twila Moon, NSIDC Weather is the day-to-day …
Science of Glaciers - National Snow and Ice Data Center
Visitors to the terminus of the Perito Moreno Glacier in Patagonia, South America, listen and observe its dynamic motion. Climate change has yet to affect the Perito Moreno Glacier, …
Glacier Quick Facts | National Snow and Ice Data Center
What are ice caps and icefields? An ice cap is a type of glacier, covering less than 50,000 square kilometers (20,000 square miles). Like ice sheets, ice caps tend to spread out in dome-like …
Ice Sheet Quick Facts - National Snow and Ice Data Center
A meandering melt stream feeds the supraglacial lake in Greenland, eroding a channel on the ice sheet. — Credit: Ian Joughin/Imaggeo Together, the Antarctic and Greenland Ice Sheets …
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 …
Snow | National Snow and Ice Data Center
This animation shows the cycle of global vegetation and snow through one year. — Credit: John Nelson/IDV Solutions based on NASA data Snow requires two specific weather conditions: low …