“California water resource region”的意思、由来-开放百科全书

The California water resource region is one of 21 major geographic areas, or regions, in the first level of classification used by the United States Geological Survey to divide and sub-divide the United States into successively smaller hydrologic units. These geographic areas contain either the drainage area of a major river, or the combined drainage areas of a series of rivers.^[1]^[2]

The California region, which is listed with a 2-digit hydrologic unit code (HUC) of 18, has an approximate size of {{convert|168,579|sqmi|km2|abbr=off|lk=on|sp=us}}, and consists of 10 subregions, which are listed with the 4-digit HUCs 1801 through 1810.^[3]

This region includes the drainage within the United States that ultimately discharges into the Pacific Ocean within the state of California; and those parts of the Great Basin (or other closed basins) that discharge into the state of California. Includes parts of California, Nevada, and Oregon.^[3]

List of water resource subregions

Subregion HUC^[4]

Subregion Name^[4]

Subregion Description^[3]

Subregion Location^[4]

Subregion Size^[4]

Subregion Map

1801

Klamath–Northern California Coastal subregion

The drainage into the Pacific Ocean from and including the Smith River Basin to and including the Stemple Creek Basin.

California and Oregon.

1802

Sacramento subregion

The Sacramento River Basin and drainage into Goose Lake.

California and Oregon.

1803

Tulare–Buena Vista Lakes subregion

The drainage into the Tulare and Buena Vista Lake closed basins.

California

1804

San Joaquin subregion

The San Joaquin River Basin.

California

1805

San Francisco Bay subregion

The drainage into the Pacific Ocean from the Stemple Creek Basin boundary to and including the Pescadero Creek Basin, excluding the Sacramento and San Joaquin River Basins.

California

1806

Central California Coastal subregion

The drainage into the Pacific Ocean from the Pescadero Creek Basin boundary to and including the Rincon Creek Basin.

California

1807

Southern California Coastal subregion

The drainage within the United States that discharges into the Pacific Ocean from the Rincon Creek Basin boundary to the California-Baja California international boundary.

California

1808

North Lahontan subregion

The drainage east of the Sierra Nevada and north of the Truckee River Basin which includes the Lahonton closed basins that discharge into California.

California and Nevada.

1809

Northern Mojave–Mono Lake subregion

The Closed Desert Basins that discharge into South Central California, including Mono Lake, Owens Lake, Death Valley, and the Upper Mojave Desert.

California and Nevada.

1810

Southern Mojave–Salton Sea subregion

The closed desert basins in Southeastern California, including the Lower Mojave Desert and the Salton Sea.

California

See also

References

1. ^{{cite web|title=Science in Your Watershed - Locate Your Watershed|url=http://water.usgs.gov/wsc/watershed_finder.html|publisher=USGS|accessdate=2016-10-12}}{{PD-notice}}
2. ^{{cite web|title=Hydrologic Unit Maps|url=http://water.usgs.gov/GIS/huc.html|publisher=USGS|accessdate=2016-10-12}} {{PD-notice}}
3. ^¹²{{cite web|title=Boundary Descriptions and Names of Regions, Subregions, Accounting Units and Cataloging Units |url=https://water.usgs.gov/GIS/huc_name.html|publisher=USGS |website=water.usgs.gov |accessdate=2016-10-12}} {{PD-notice}}
4. ^¹²³{{cite web|vauthors=McManamay RA, Bevelhimer MS, Kao SC, Yaxing W, Martinez-Gonzalez M, Samu N|title=National Hydropower Asset Assessment Environmental Attribution|url=http://nhaap.ornl.gov/content/environmental-attribution|publisher=USGS-Oak Ridge National Laboratory|accessdate=2016-10-12|publication-date=2013}} {{PD-notice}}