Ad
related to: watershed map with a key
Search results
Results From The WOW.Com Content Network
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 principal drainage basins spanning three oceans ( Arctic , Atlantic and Pacific ) and one endorheic basin.
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 list of drainage basins by area identifies basins (also known as "catchments" or, in North American usage, "watersheds"), sorted by area, which drain to oceans, mediterranean seas, rivers, lakes and other water bodies.
The newer delineation work on watersheds and subwatersheds was done using 1:24,000 scale maps and data. As a result, the subbasin boundaries were changed and adjusted in order to conform to the higher resolution watersheds within them. Changes to subbasin boundaries resulted in changes in area sizes.
Other terms for a drainage basin are catchment area, catchment basin, drainage area, river basin, water basin, [3] [4] and impluvium. [5] [6] [7] In North America, they are commonly called a watershed, though in other English-speaking places, "watershed" is used only in its original sense, that of the drainage divide line.
The watershed of the entire Chesapeake Bay covers 165,760 km 2 (approximately 64,000 mi 2 or 41 million acres [3] [4]). With an estuary water body area of only 11,600 km 2 (4,479 mi 2), [5] the land-to-water ratio is about 14:1. [6] Therefore, the rivers flowing into the Chesapeake Bay have a large influence on water quality in the estuary.
Map of the Klamath River drainage basin. The drainage basins of the Williamson and Sprague Rivers, in Oregon, are to the north and northeast of Upper Klamath Lake.Together, the two watersheds cover 3,069 square miles (7,950 km 2), or 19.4% of the Klamath River watershed.
The water is also home to 150 species of fish ranging from catfish to certain species of salmon and trout. [14] The depth also allows for commerce throughout the river on barges. On average the Ohio River transports over 230 million tons of cargo. Typically, the cargo being shipped are energy resources such as coal.