Video
A Year at the Upper Charley River Climate Monitoring Station, Yukon-Charley Rivers National Preserve
Transcript
This video shows seasonal changes in the Yukon-Charley Rivers National Preserve, Alaska using time-lapse photography from the year 2018. After zooming across a satellite image of North America to eastern Alaska, we arrive at the Preserve, outlined in yellow. The location of the Upper Charley River climate monitoring station is marked by a red dot. A remote automated camera is mounted on a tripod, along with weather instruments. The time-lapse video was made from selected photos taken on days with good weather. The view looks from a hilltop across a broad valley in the headwaters of the Charley River, with rounded mountains in the background. There are a few small spruce trees near the camera, with denser spruce forest on the slopes below. The year begins with a snow covered landscape. The January sun illuminates only the hilltops at mid-day, because our location is near the Arctic Circle. The sun gets brighter in February, March, and April. The snow melts off in May, exposing birch shrubs that grow green leaves in June. The sky turns hazy for a time in July as a result of smoke from forest fires. The birch shrubs turn orange in early September, and the leaves drop off. The snow returns in October and the midday sun retreats to the hilltops once again in December.
Description
This video was made from a full year of photographs from a remote camera (phenocam) located at the Upper Charley River climate monitoring station in Yukon-Charley Rivers National Preserve.
Duration
2 minutes, 1 second
Credit
NPS/David Swanson
Date Created
05/26/2023
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