Toolik Field Station
Naturalist Journal

Daily observations of weather, wildlife and phenological characteristics around the Toolik Lake region are currently being made. Recordings of storm events and duration, cloud cover, air temperature, wind speed, fog and percent snowcover are taken each day. Wildlife activity in and around camp is recorded, including birds, fish and insects sightings. Timing of ice out and ice up on Toolik Lake is recorded. Green-up measurements in the spring and senescence measurements in the fall will be made.

TOOLIK LAKE FREEZE-UP 2007

• After a mild September, the lake cooled down to 4 degC on Sept 28 and mixed.
• A solid surface of ice formed over 100% of surface of Toolik Lake on Oct 4, 2007.
• The first snow of the winter season fell Oct 2, 2007.
• As of Oct 2, the Toolik Inlet was partially flowing. The section under the bridge was totally frozen and before the snow fell, a few grayling were swimming under the ice.

This page last updated on 12-Feb-2008