LEO Network

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The LEO Network is a worldwide network of observers and experts that share their observations of environmental change.
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Observations

Shortening ice season on Chistochina River
"The river was iced over for less then 6 weeks! As opposed to 5 months of ice 2 to 3 feet thick before climate change."
Chistochina, Alaska, United States
Wilson Justin, Robert Busey, Crane Johnson

High water around Kotzebue
Above normal temperatures in the month of November followed by a series of storms makes varying ice conditions.
Kotzebue, Alaska, United States

Invasive Elodea in Piledriver Slough
Invasive Elodea has been observed since 2020.
Moose Creek, Alaska, United States

Invasive Elodea in 28 Mile Pit
Elodea found on and near Eielson Airforce Base
Eielson Air Force Base, Alaska, United States

Invasive Elodea in Chena Slough
Invasive elodea decade history in the Chena slough with mitigation and persistent infestation.
North Pole, Alaska, United States

Protecting roads and water infrastructure from erosion
River erosion is impacting the road and requiring the replacement of health infrastructure.
Huslia, Alaska, United States
Lucy Snyder, Jacqualine Schaeffer, Max Neale

Rain continues to impact Noatak River
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.
Noatak, Alaska, United States
Jeffrey Luther, Richard L Thoman Jr, Michelle McAuley

High water in Kotzebue Sound
Water floods the Kotzebue lagoon. Grasses can be seen in July and a month later in August the water has risen 4-6 ft.
Kotzebue, Alaska, United States
Jacquelyn Overbeck, Susan Tessier, Jimmy Evak, Nic Kinsman, Jacqualine Schaeffer

Beluga Whale Spotted in The Yukon River Near Tanana
The marine mammal was seen some 600 miles from where the river empties into the Bering Sea.
Tanana, Alaska, United States
Verena Gill, Barbara Mahoney, Rodney Evans

Signs of a wet summer are numerous around Cheney Lake
The rain in July has been persistent and in some cases intense. At Cheney Lake there is plenty of evidence about the wet summer.
Anchorage, Alaska, United States

Alberta "Stonecat" Fish
An observer's unexpected catch of a Stonecat in Alberta's Milk River reveals a native species of concern, prompting a draft recovery strategy for this and other at-risk fish.
Coutts, Alberta, Canada

Concerned about algae in Cheney Lake
Over the last several weeks the algae bloom has ranged from significant covering the surface of the lake in many places to today seeing patches of the bloom here and there on the surface. It can also be observed below the surface near the shoreline.
Anchorage, Alaska, United States

Highwater brings dramatic erosion
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.
Noatak, Alaska, United States
Sarah Yoder, Jason Norris, Chris Dankmeyer, Jeffrey Luther, Richard L Thoman Jr, Jacqualine Schaeffer, Max Neale

Erosion Impacting Vegetation and Roads
This post is an update on the river erosion situation in Noatak, where a new channel is being cut by the Noatak River.
Noatak, Alaska, United States
Jeffrey Luther, Max Neale, Crane Johnson, Anna Liljedahl

Drought in the Saanich Peninsula
“We spent the weekend outdoors camping on the peninsula and notices shoreline grasses has dried and shriveled.”
North Saanich, British Columbia, Canada

Noatak Erosion and River Channel redirection
As the river changes and erosion happens along the banks, new channels are being formed around the community.

Invasive Elodea in Harding Lake
Elodea was first observed in Harding Lake in 2020 growing in isolated patches and has since been assessed and managed by the Fairbanks Soil and Water Conservation District and its partners.
Salcha, Alaska, United States

Persistent drought
"In our country Afghanistan I have observed that the level of water is decreasing day by day."
Kabul, Kabul, Afghanistan

Open Water at Moose Creek
Open water in February.
Buffalo Soapstone, Alaska, United States

Severe Erosion in Newtok
A site visit to Newtok on September 30, shows severe erosion from impacts of storm (typhoon Merbok). The images show both severe permafrost melt and river erosion.
Newtok, Alaska, United States

Up river effect from Typhoon Merbok
The heavy rains and high water from storm Murdok today and Monday are contributing to the erosion of the old landfill and river bank.
Richard L Thoman Jr, Jeffrey Luther, Joy Britt

Storm unearths ancient tusks
The aftermath of Typhoon Merbok left fuel tanks floating and home flooded, but locals also saw an opportunity.
Newtok, Alaska, United States

Decreased Peregrine Falcon Sightings on Yukon River
Between the fall of 2021 and the fall of 2022, APU students observed a dramatic decrease in the number of Peregrine Falcons between Eagle and Circle, Alaska.
Eagle, Alaska, United States
Caroline Van Hemert, Paul Twardock, Kimberlee Beckmen, Angela Matz

Salmon run disrupted by trench dug across Coquihala River
There were alternatives for Trans Mountain Corporation to digging a trench in the river to lay pipe during the time the salmon were running.
Hope, British Columbia, Canada

Sudden lake draining event
"The event occurred on June 29th, on our native allotment near Kotzebue (Illivak). We left home in the morning and when we came back around 8:00 PM in the evening the whole lake had drained! It looked like it was blown up with dynamite."
Kotzebue, Alaska, United States
Ken Tape, Richard L Thoman Jr, Gemini , Guido Grosse, Susan Tessier, Benjamin Jones, Anna Liljedahl , Vladimir Romanovsky, Jacqualine Schaeffer, Joanna Barton, Ingmar Nitze, Bruce Forbes

Unknown Insect
This eye catching insect is the adult stonefly.
St. Mary's, Alaska, United States

River erosion threatening old dump site
Community gravel source and old dump site threated by erosion.
Joy Britt, Kayla Nay, Sarah Durand, James Benzschawel, Jeffrey Luther, Erin Nelson, Desirae Mack, Joanna Barton

Stickleback fish die-off
There were a plenty of what appeared to be juvenile dead stickle back fish on the top of the embankment of a few ponds.
Elim, Alaska, United States
Gay Sheffield, Jayde Ferguson, Brandon Ahmasuk, Leigh Takak, Scott Kent

Huge section of river bank collapses in Noatak
The collapse was documented with drone imagery as was a permafrost rebound signature in the river water.
Edward "Ted" Smith, Edna Bailey, Jeffrey Luther, Joy Britt, Anna Liljedahl , Paul Walton, Hiram Walker, Chris Dankmeyer

River erosion threatens road
Noatak has lost 19' of river bank since May 19th. Now the road to the community gravel source is failing.
Joy Britt, Jason Norris, Crane Johnson, Jeffrey Luther, Max Neale, Chris Dankmeyer, Edward "Ted" Smith, Anna Liljedahl , Paul Walton

Still very cold on Noatak
Crane Johnson, Richard L Thoman Jr, Jeffrey Luther

Bank erosion exposing old landfill contents
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.
Chris Dankmeyer, Paul Walton, Tom Wolforth, Jeffrey Luther, Joy Britt

Swans displaying unusual posture floating in lake
A passenger on a small commercial plane flying between Nome and Golovin reported seeing 5-6 swans all motionless, floating on a pond. The reason of the behavior is unknown.
~ 60 Miles East of Nome Alaska, United States
Louisa Castrodale, Andrew Ramey, Bob Gerlach, Carol Oliver, Michael Bruce, Brandon Ahmasuk, Kimberlee Beckmen, Racheal Lee, Angela Matz, PATRICIA SCHWALENBERG, Gay Sheffield

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