May 14, 2025
Coastal communities across Alaska are increasingly concerned about rising sea levels, coastal flooding, and inundation. Inundation refers to water that covers normally dry ground during flooding events. Along the coast, this can be caused by unusually high tides,...
Dec 22, 2022
Extratropical Typhoon Merbok transited the Bering Sea impacting 40 Alaska Native communities and more than 1,300 miles of coastline. Visit this site to see the story about the post-storm data collection effort that was immediately coordinated to provide documentation...
May 11, 2022
The Alaska Division of Geological & Geophysical Surveys works with Alaska Water Level Watch partners to maintain photos and resources on historical floods in western Alaska. These resources are the only insights into how high past floods reached in and around...
Oct 25, 2021
Early in spring of 2021, the community of Kwgillingok experienced coastal flooding from a high tide (see https://www.kyuk.org/post/kwigillingok-experiences-severe-tidal-flooding). Although Kwigillingok has had coastal flooding in the past (see...
Jul 21, 2020
The Alaska Mapping Executive Committee (AMEC)—a coordinated working group amongst federal agencies as well as the State of Alaska—recently released a strategy to map the coast of Alaska over the next 10 years. The strategy primarily addresses improvements to...
Apr 21, 2020
Southeast Alaska Model Release/Update The VDatum 4.0.1 release on October 28, 2019 includes support for transformations involving the tidal datums of southeast Alaska (SE AK): local mean sea level (LMSL), mean lower low water (MLLW), mean high water (MHW), mean higher...
