The hydrologic cycle is a rotation of water exchange between the land, the ocean, and the atmosphere on earth. It is an amazing fact that water circulates without any loss of water. "Hydrologic cycle includes evaporation form the sea, movement of water vapor over the land, condensation, precipitation, surface runoff, subsurface runoff, and so on". (p.189) Because it is a complex and long process, humans did not recognize what was exactly going on until recent times. .
Talking about how humans developed the idea of the hydrologic cycle, we begin with the ideas of people from the sixteenth century. .
They believed that water discharged by springs and streams could not be derived form the rain, for two reasons. The first reason was that rainfall was treated as inadequate in quantity. The other reason was that they believed the earth was too impervious to permit penetration of water very far below the surface. (p.190).
However, people from even earlier ages, the ancients, knew that the ocean never overflowed. So they figured that was why the rivers flowed to the oceans. One thing the ancients wondered about was how the water got into the rivers from the seas, and how it lost its salt content. The evidence suggests that the ancients' ideas came from the Bible. In Ecclesiastes 1:7, it says, all the rivers run into the sea, yet the sea is not full; unto the place from whence the rivers come thither they return again.' .
"Once again the recognition of the role of infiltration in supplying water to springs and rivers began in the sixteenth century". (p.190) Leonardo da Vinci is credited with one of the earliest accurate descriptions of the hydrologic cycle. He was a brilliant scientist, and he was in charge of canals in the Milan area at the time. Probably his occupation of being in charge of canals helped him developing his theory about the hydrologic cycle.
Whence we may conclude that the water goes form the rivers to the sea and from the sea to the rivers, thus constantly circulation and returning, and that all the sea and rivers have passed through the mouth of the Nile an infinite number of times .
The Hydrologic Cycle Water is the source of all life on earth. ... The circulation and conservation of earth's water is called the "hydrologic cycle". ... In the hydrologic cycle, transport is the movement of water through the atmosphere, specifically from over the oceans to over land. ...
The geologic and hydrologic issues facing Monte Vista School, Valley View School, and Rosemont Junior High School The question of if Monte Vista School, Valley View School, and Rosemont Junior High School will have any negative impacts from geologic or hydrologic events is not the issue, the issue is when and how severe the events will be. ... The La Cresenta area is always at great risk of a geologic or hydrologic event. ... It would do us no good at all to build property, both commercial and residential in an area that will soon be negatively affected by geological or hydrological events. ...
• Vegetation and the hydrological / carbon cycle - Transpiration by trees and vegetation is an important part of the hydrological cycle as shown in figure 1 below. ... Alteration of our vegetative landscapes can alter the hydrological cycle and even our weather patterns on which we are dependant on for water which is another critical issue for human survival. ... Fig 1: The hydrological cycle Max-Planc- Institute for Meteorology, Hamburg Figure 2: The carbon cycle Michael J. ...
The oceans are the planets largest reservoir of water transferring huge amounts of water around the hydrological cycle. In fact the oceans "dominate the hydrological cycle, for they contain 97% of the global water inventory" . The hydrological cycle can be disrupted by changes in ocean circulation that play such an important role on evaporation and precipitation. ... As the temperature cools in the Northern Hemisphere the global hydrological cycle is effected. ...
The oceans are the planets largest reservoir of water transferring huge amounts of water around the hydrological cycle. In fact the oceans "dominate the hydrological cycle, for they contain 97% of the global water inventory" . The hydrological cycle can be disrupted by changes in ocean circulation that play such an important role on evaporation and precipitation. ... As the temperature cools in the Northern Hemisphere the global hydrological cycle is effected. ...
Nutrient Cycling Nutrient cycling is the first basic principle of ecosystem sustainability. It is the repeated pathway of particular nutrients or elements from the environment through one or more organisms back to the environment. Some examples include carbon cycle, the nitrogen cycle, and the...
The main cause of land degradation is from human activities, from badly managing the land and the land cover. Activities which can be particularly harmful include: Clearing of vegetation, especially on steep slopes. This leaves the soil open to erosion by water. Cultivating the land for too lo...
The SMART project (Sustainable Management of Available Water Resources with Innovative Technologies) in the lower Jordan Valley and the GLOWA Jordan river project (Global Change and the Hydrological Cycle), which act as an integrative science approach towards sustainable management of larger river basins , are some of these projects. ... The Jordan River case is the best example to prove this; indeed, several projects were planned to manage the resources of this watershed in an integrated way but many of them failed or were hardly established because of the multifarious geographical, territo...
The rock cycle summarizes the formation and breakdown of igneous, sedimentary, and metamorphic rocks. It also shows how the formations of these rocks are interrelated. The water cycle is the movement of water within the hydrosphere (the waters of Earth's surface). The water cycle is a series of move...