The colors on this collection of daily global maps show where the land and ocean was covered by snow (gray and white) and ice (blue). If you browse through these maps you will notice that snow and ice cover Earth’s polar regions with bright white caps all year round. But at lower latitudes the extent of snow and sea ice changes as the seasons change. Scientists measure how much of our world is covered by snow and ice to help them better understand and predict changes in Earth’s weather and climate.
These data currently include daily composites from November 2007 to present; data from earlier years will be added as they are reprocessed.
