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#beringsea

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💧🌏 Greg Cocks

Fluvial System Block Diagrams
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I was looking to understand a fluvial system the other day, up in the high Arctic, as I looked at 3DEP remote sensed elevation data… I have always been fascinated by the how geology, water, weather shapes a landscape, including erosion (aka geomorphology if you will) – and realized how very much value fluvial block diagrams have as we try to conceptualise what has, is and will happen(ed.)
#spatial #spatiotemporal #morphology #meander #levee #understanding #oxbow #pointbar #river #water #hydrology #landform #geomorphology #geomorphometry #geology #fluvial #riverine #weather #climate #erosion #sediment #sedimentation #Arctic #3dep #opendata #DEM #BeringSea #northslope #opendata #fedservice

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💧🌏 Greg Cocks

Bering Sea Storm Brings Erosion And Flooding To Western Alaska Communities
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alaskapublic.org/2024/08/18/be <-- shared media article
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hcn.org/articles/how-an-unexpe <-- shared media article about the effects of a previous storm
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#GIS #spatial #mapping #flood #flooding #coastalflooding #Alaska #weather #extremeweather #water #hydrology #risk #hazard #rain #precipitation #erosion #storms #stormsurge #highwind #onshorewind #surf #WesternAlaska #BeringSea #Tuntutuliak #Napakiak #Akiak #Bethel #Kasigluk #Nunapitchuk #Atmautluak #Kipnuk #Kwigillingok #KuskokwimRiver #tidalsurge #bluemoon #infrastructure #road #village #communities #FirstNation

aerial photo - drone image shows floodwaters threatening the William Miller Memorial School in Napakiak on Sunday, Aug, 18, 2024
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photo - Severe flooding is seen in the coastal community of Kwigillingok on the morning of Sunday, Aug. 18, 2024
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photo - Kuskokwim River spills over the Bethel riverfront amid high winds on the afternoon of Aug. 18, 2024.
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photo - example of damage from a previous storm - Boats and debris litter the shoreline of the Ningliqvak River after the storm surge from Typhoon Merbok brought high water 17 miles inland to Chevak from the Bering Sea coast
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Replied to anna_lillith 🇺🇦🌱🐖
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anna_lillith 🇺🇦🌱🐖

Imagine standing in the center of the boreal, somewhere in the #Canadian province of #Manitoba.

Nearly 1 billion acres of forest surround you. To the west, the forest stretches to #Alaska 's #BeringSea coast. To the east, it runs all the way to #Newfoundland and #Labrador. It even skips over the Atlantic into parts of #Greenland.

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cdnsciencepub.com/doi/10.1139/

Environmental ReviewsThe extent of the North American boreal zoneThe circumpolar boreal zone is one of the world’s major biogeoclimatic zones, covering much of North America and Eurasia with forests, woodlands, wetlands, and lakes. It regulates climate, acts as a reservoir for biological and genetic diversity, plays a key role in biogeochemical cycles, and provides renewable resources, habitat, and recreational opportunities. Poor agreement exists amongst scientists regarding this zone’s delimitation and the areal extent of boreal forests, even though the zone has been well-studied. This paper reviews the literature on the phytogeography of the zone and makes use of a geographic information system (GIS) and published maps to delineate a current map of the North American boreal zone and the hemiboreal subzone, which is a transitional area lying immediately to the south of the boreal zone that is usually included in the boreal zone by Europeans but excluded by North Americans. On the basis of the map described here, the boreal zone covers about 627 million ha, or 29% of the North American continent north of Mexico. If the hemiboreal subzone, at 116 million ha, is included, then 34% of the same area is covered. Forests and other wooded land (362 million ha) cover 58% of the North American boreal zone on the basis of current forest inventory data. With forests and other wooded land of the hemiboreal subzone (68 million ha) factored in, this percentage remains basically unchanged. Values reported in this paper are compared with other published statistics. Important sources of error contributing to differences in areal statistics are discussed.
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