LEO Member Jeffrey Luther has been documenting erosion along the Noatak River for many years. His drone footage this spring captures new bank erosion features and icicle formations.
Above normal temperatures in the month of November followed by a series of storms makes varying ice conditions.
Heavy rains have elevated river levels throughout August and September. High water continues to erode the river bank in the community. The photos show a tree that was 22 feet from the edge is know 3 feet. Total erosion has reached 91 ft. by old landfill and new mark shows 112 ft. marker.
The river in Noatak is slowly cutting away parts of the road. This is an on going problem and the observation by Jeffrey Luther provides the latest in a series about erosion and related impacts.
This post is an update on the river erosion situation in Noatak, where a new channel is being cut by the Noatak River.
As the river changes and erosion happens along the banks, new channels are being formed around the community.
Kotzebue experienced one blizzard after another in March, and now with so much piled up and drifted snow, the community is struggling to dig out.
Permafrost thaw in Noatak is causing the condition of the grave site to degrade. A trench has formed and crosses are tipping over.
Community gravel source and old dump site threated by erosion.
The collapse was documented with drone imagery as was a permafrost rebound signature in the river water.
As the spring snow melt the flooding cuts away the bank more every day. This observation includes photos showing the location of the community water source, transmission line.
Noatak has lost 19' of river bank since May 19th. Now the road to the community gravel source is failing.
A fisherman was coming home from fishing last night and noticed (what he thought was) a coffin sticking out of the old gravesite above one of the markers I used to measure erosion with last summer. It turned out to not be a coffin, but rather an old air duct or metal meat trailer.
I'm guessing all the rain we received during summer of 2021 created the trench.
"The sea level rise and wind is making this happen because it is really vulnerable. We are always really amazed every time we go out there with the change, and pieces of earth the size of a house falling over."
Community Water System at Risk: Extreme precipitation throughout the summer and sustained high water has resulted in erosion of the location for the water transmission line and Noatak's two water wells.
Unusual high water all summer in Noatak, causing massive erosion towards the airport and old buried landfill, exposing old trash into the river.
Photos show some of the erosion caused by surge of high water in late June on the Noatak River. As of June 29th, 24 feet of bank have been lost adjacent to the Noatak Airport, and 28 feet adjacent to the landfill.
River erosion in Noatak is posing a threat to wells and transmission lines along the bank as the river ebbs closer.
The rate of coastal erosion seems to be speeding up near Cape Blossom.
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