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Looking for facts and information? See About the Cryosphere.
Icelights: Answers to your burning questions about ice and climate
What's hot in the news around climate and sea ice and what are scientists talking about now? Read more...
What is the Cryosphere?
When scientists talk about the cryosphere, they mean the places on Earth where water is in its solid form, frozen into ice or snow. Read more ...
On Wednesday, 10 February 2016 from 9 :00 a.m. to 1:00 p.m. (USA Mountain Time), some applications on our web site may be unavailable due to system maintenance. We apologize for any inconvenience this may cause you.
The Global Lake and River Ice Phenology Database contains freeze and thaw/breakup dates as well as other descriptive ice cover data for 865 lakes and rivers in the Northern Hemisphere. Of the 542 water bodies that have records longer than 19 years, 370 of them are in North America and 172 are in Eurasia. 249 lakes and rivers have records longer than 50 years, and 66 have records longer than 100 years. A few water bodies have data available prior to 1845. This database, with water bodies distributed around the Northern Hemisphere, allows for the analysis of broad spatial patterns as well as long-term temporal patterns.
Note: The term phenology in the data set title refers to the seasonal phenomenon of the freezing and thawing of lake and river ice.
Access to the Global Lake and River Ice Phenology Database data set is unrestricted, but users are encouraged to register for the data. Registered users will automatically receive e-mail notification about any product changes.
Notice: 22 September 2015 - The Lake Suwa Japan data with lake code ARAI1 have been temporarily removed from the database due to an error found in the calendar correction for the data. The data providers are wokring on a corection but there is no timeline for completion.
N: 82.5, S: 36.5, E: 149.3, W: -140.4