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Contents. Hydrologic unit system (United States) For the use of hydrologists, ecologists, and water-resource managers in the study of surface water flows in the United States, the United States Geological Survey created a hierarchical system of hydrologic units. Originally a four-tier system divided into regions, sub-regions, accounting units ...
Hydrological code. A hydrological code or hydrologic unit code is a sequence of numbers or letters (a geocode) that identify a hydrological unit or feature, such as a river, river reach, lake, or area like a drainage basin (also called watershed in North America) or catchment. One system, developed by Arthur Newell Strahler, known as the ...
Watersheds of North America. A map of watersheds separated by the principal hydrological divides of North America. Watersheds of North America are large drainage basins which drain to separate oceans, seas, gulfs, or endorheic basins. There are six generally recognized hydrological continental divides which divide the continent into seven ...
Watershed district (Minnesota) Watershed districts are special government entities in the U.S. state of Minnesota that monitor and regulate the use of water in watersheds surrounding various lakes and rivers in the state. The districts cover the natural regions of the watersheds, rather than politically defined regions and thus may have ...
Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin. It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution. The activity of watershed delineation ...
Watershed management. Watershed management is the study of the relevant characteristics of a watershed aimed at the sustainable distribution of its resources and the process of creating and implementing plans, programs and projects to sustain and enhance watershed functions that affect the plant, animal, and human communities within the ...
minnehahacreek .org. The Minnehaha Creek Watershed District is a watershed district in Minnesota with a mission to collaborate with public and private partners to protect and improve land and water for current and future generations. [1] The Minnehaha Creek in its name refers to the water link from Lake Minnetonka to the Mississippi River.
The South Atlantic–Gulf 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 subdivide the United States into successively smaller hydrologic units. These geographic areas contain either the drainage area of a major river, or the ...