hydrosphere summary
Know about the components of the hydrosphere
Below is the article summary. For the full article, see hydrosphere.
tsunami Summary
Tsunami, catastrophic ocean wave, usually caused by a submarine earthquake, an underwater or coastal landslide, or a volcanic eruption. The term tidal wave is frequently used for such a wave, but it is a misnomer, for the wave has no connection with the tides. After an earthquake or other
groundwater Summary
Groundwater, water that occurs below the surface of Earth, where it occupies all or part of the void spaces in soils or geologic strata. It is also called subsurface water to distinguish it from surface water, which is found in large bodies like the oceans or lakes or which flows overland in
El Niño Summary
El Niño, in oceanography and climatology, the anomalous appearance, every few years, of unusually warm ocean conditions along the tropical west coast of South America. This event is associated with adverse effects on fishing, agriculture, and local weather from Ecuador to Chile and with far-field
sea ice Summary
Sea ice, frozen seawater in the Arctic Ocean and its adjacent seas as far south as China and Japan and in the Southern Ocean and its adjacent seas surrounding Antarctica. Most sea ice occurs as pack ice, which is very mobile, drifting across the ocean surface under the influence of the wind and