Water resources are natural resources of water that are potentially useful for humans. For example, they serve as a source of drinking water or irrigation water. These resources may consist of freshwa
Lake Chungará and Parinacota volcano in northern Chile
Panorama of a natural wetland (Sinclair Wetlands, New Zealand)
Total renewable freshwater resources of the world, in mm/year (1 mm is equivalent to 1 L of water per m2) (long-term average for the years 1961–1990). Resolution is 0.5° longitude x 0.5° latitude (equivalent to 55 km x 55 km at the equator). Computed by the global freshwater model WaterGAP.
Irrigation of agricultural fields in Andalusia, Spain. Irrigation canal on the left.
Surface water is water located on top of land, forming terrestrial waterbodies. This may also be referred to as blue water, opposed to the seawater and waterbodies like the ocean.
An inland lake, an example of surface water
The entire surface water flow of the Alapaha River near Jennings, Florida going into a sinkhole leading to the Floridan Aquifer groundwater.
A stream gauge used to measure surface water.