Humankind has had a huge deport upon on the rivers of the American West. Nearly one-half of all river miles inwards the West are no longer inwards their natural state. Disappearing Rivers allows you lot to explore how humans accept impacted on rivers inwards the West as well as how far they accept been unnaturally altered.
Disappearing Rivers is an interactive map which shows the grade to which all the rivers inwards the American West accept been altered yesteryear humankind. All the rivers on the map are color-coded to reverberate the percent that each river has been altered. This is the combined percent of floodplain as well as river time period which has been altered yesteryear human beings. Influenza A virus subtype H5N1 drop-down carte du jour allows you lot to alter the map layer to demo river & flow time period restriction or altered floodplains instead.
If you lot conduct the 'Threats' selection you lot tin dismiss persuasion dams, major human diversions, culverts as well as bridges on the map. If you lot conduct the selection to persuasion dams thus scaled markers are added to the map. These markers demo the locations as well as the sizes of river dams inwards the West.
Disappearing Rivers includes a detailed await at ane river to highlight the form of modification that rivers accept suffered inwards the American West. Over one-half the Colorado River is dammed, diverted or otherwise altered from its natural state. Disappearing Rivers uses a storey map format to go along the Colorado River, showing how agriculture, irrigation runoff, nearby mines, dams as well as diversions accept combined to alter the natural pose down of the river.
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