What defines a glacier? What are the world’s three largest glaciers? What are the largest glaciers in each region of the world? When NSIDC’s Ann Windnagel began investigating these questions, she found they were not as straightforward as she was expecting.
Advancing knowledge of Earth's frozen regions
NSIDC manages and distributes scientific data, creates tools for data access, supports data users, performs scientific research, and educates the public about the cryosphere.
Arctic sea ice likely reached its minimum extent for the year, at 4.15 million square kilometers (1.60 million square miles) on September 18, 2019, according to scientists at the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder. The 2019 minimum is ranked at second lowest in the 40-year satellite record, effectively tied with 2007 and 2016.
Mark Serreze, director of the National Snow and Ice Data Center (NSIDC) and a professor in the Department of Geography at the University of Colorado Boulder (CU Boulder), has received the highest honor awarded to faculty across the CU system—distinguished professorship. In order to receive this distinction, candidates must demonstrate exemplary performance in research or creative work, have a record of excellence in classroom teaching and supervision of individual learning, and exhibit outstanding leadership and service to the profession. Only 106 faculty members have received the distinguished professorship since its inception in 1977.
Chartic, a data visiualization tool, charts sea ice loss using satellite data and helps users better understand what is happening in remote parts of our planet.
The Latest on Snow and Ice
Daily melt extent mapping is suspended for the winter. Calibration of yearly melt detection requires analysis of the springtime snow conditions by a separate program. See our ... read more
Low winter snow cover, springtime heat waves, and a sunny summer led to a large runoff of meltwater from the Greenland ice sheet in 2019, primarily from its western side.Overview of... read more
October daily sea ice extent went from third lowest in the satellite record at the beginning of the month to lowest on record starting on October 13 through October 30. Daily extent finished... read more