The largest watershed in the United States is the Mississippi River Watershed, which drains 1.15 million square miles from all or parts of 31 U.S. states and two Canadian provinces stretching from the Rockies to the Appalachians!
The watershed consists of surface water–lakes, streams, reservoirs, and wetlands–and all the underlying groundwater. Larger watersheds contain many smaller watersheds.
A river basin or drainage basin is an area of land drained by a river and its tributaries . The edge of the drainage basin is known as the watershed . This can be compared to a sink or basin, which catches the water falling into it. The water travels towards the centre and leaves the sink through a plug hole.
A watershed is an entire river system—an area drained by a river and its tributaries. It is sometimes called a drainage basin. … Water can only leave these bodies of water, called endorheic basins, by evaporating or seeping through the soil.
Pictured above: California’s five key source watersheds, the Feather, Pit, McCloud, Upper Sacramento, and Upper Trinity, feed the Shasta and Oroville reservoirs, the core of the state’s utilized water supply.
A watershed is the land that water flows across, or through, on its way to a stream, lake, wetland, or other body of water. … a large collection (pool) of still water that usually collects in hollows and low-lying areas of land.
A river system is a number of rivers which consists of one main river, which drains into a lake or into the ocean, and all its tributaries. The source is where the water is coming from, for example, from spring water (waterfalls), mountains etc.
The parts of a watershed
Surface water is just that—water that collects on the surface of the earth. This category is composed of rivers, lakes, streams, oceans, wetlands, estuaries…the list goes on!
Water always flows downhill—therefore the outer boundary of a watershed is formed by the ridges and hills surrounding a given waterbody. Precipitation (rain, snow, etc.) falling directly on the watershed boundary will be split between the watersheds on either side.
Definition: Imagine two valleys (or drainage basins), side-by-side, with a mountain or ridge in between. During rainfall, water will drain down both sides of the mountain into one of the valleys. The line between the two valleys is the watershed and separates two drainage basins.
The boundaries of a watershed are defined by topography, which is the shape or the physical features of the land’s surface. If the highest points of land surrounding a river were connected (like “connect the dots”), this line would form the watershed boundary.
A confluence occurs when two or more flowing bodies of water join together to form a single channel. Confluences occur where a tributary joins a larger river, where two rivers join to create a third or, where two separated channels of a river, having formed an island, rejoin downstream.
Water enters the watershed as rain or snowmelt in the highlands. It soaks into the ground to replenish aquifers and gathers in ponds and creeks that feed larger streams and rivers. A healthy watershed acts like a sponge, absorbing, storing, and slowly releasing water.
A tributary is a freshwater stream that feeds into a larger stream or river. The larger, or parent, river is called the mainstem. The point where a tributary meets the mainstem is called the confluence. Tributaries, also called affluents, do not flow directly into the ocean.Apr 18, 2013
Explanation: The Amazon River is located in the northern portion of South America, flowing from west to east. The river system originates in the Andes Mountains of Peru and travels through Ecuador, Colombia, Venezuela, Bolivia, and Brazil before emptying into the Atlantic Ocean.
A watershed is the geographical area drained by a watercourse. The concept applies at various scales – from, for example, a farm drained by a creek (a “micro-watershed”) to a large river basin (or a lake basin).
|catchment basin||catchment area|
|drainage basin||drainage area|
South America has three important river basins: the Amazon, Orinoco, and Paraguay/Paraná.
The place where a river begins is called its source. River sources are also called headwaters. Rivers often get their water from many tributaries, or smaller streams, that join together. The tributary that started the farthest distance from the river’s end would be considered the source, or headwaters.Sep 29, 2011
Most of the water you see flowing in rivers comes from precipitation runoff from the land surface alongside the river. Of course, not all runoff ends up in rivers. Some of it evaporates on the journey downslope, can be diverted and used by people for their uses, and can even be lapped up by thirsty animals.
All the water from a watershed will eventually end up in a river, lake, or ocean. It is like the drain in the picture—a place to where all the water flows.
Water falls a precipitation and the mountain divide “splits” the water into different streams of run-off. 2. Water cohesively collect to create headwaters (beginnings of streams or rivers). 3.
What is a watershed? area of land where all of the water that falls in it and drains off of it goes to a common outlet.
Major River System in India. Indus River System. Brahmaputra River System. Ganga River System. Yamuna River System.
|WORLD’S TEN LARGEST RIVERS BY DISCHARGE|
|River||Country||Average Discharge at Mouth (Thousands of cubicfeet per second)|
A watershed includes the network of streams that drains that surface land area, and the groundwater and aquifers located underground that contribute water to those streams.
what is a watershed
river basin vs watershed
which river has the largest basin in india
types of drainage basin
basin of water
characteristics of drainage basin