ICERUN
| Date | Clue |
|---|---|
| 2024-11-10 | Annual river thawing |
| 2019-12-18 | Rapid breakup of a frozen stream in the spring |
| 2018-04-15 | Spring river breakup |
| 2014-03-16 | Spring river breakup |
| 2012-12-22 | Post-winter breakup |
| 2009-05-15 | Annual river thaw |
| 2008-07-04 | Spring river breakup |
| 2007-09-21 | Spring river phenomenon |
| 2005-01-30 | Postwinter flood |
| 1999-07-17 | Rapid river thaw |