PPT-Water Budget I: Precipitation Inputs

Forest Cover Global Mean Annual Precipitation MAP Biomes and Rainfall Forests wont grow where P lt 15 yr Forest type depends strongly on rainfall quantity type snow rain and timing summer winter. Nari. (2001).  Yang, M.-J.. *, S. A. Braun, and D.-S. Chen, 2011: Water budget of Typhoon . Nari. (2001)..  Mon. . Wea. . Rev.. , . 139. , 3809-3828, . doi. : 10.1175/MWR-D-10-05090.1. (SCI). 報告人 . Precipitation Inputs. Forest Cover. Forests and Rainfall. Forests won’t grow where P < 15” / yr. Forest type depends strongly on rainfall quantity, type (snow, rain) and timing (summer, winter). Precipitation. We’ve studied the water cycle, and last week we focused on the “Condensation”. part. Now, we are going to discuss the precipitation part of the water cycle.. Let’s watch this video on Precipitation!. "Rain Drops Keep Falling on my Head" B.J. Thompson (1969). INTRODUCTION. How much rain do you get in your area?. How about snow?. This amount varies around the world. . For example, people living in Spokane, Washington get much more rain than those in Phoenix, Arizona.. Precipitation Inputs. Forest Cover. Forests and Rainfall. Forests won’t grow where P < 15” / yr. Forest type depends strongly on rainfall quantity, type (snow, rain) and timing (summer, winter). Precipitation Inputs. Forest Cover. Forests and Rainfall. Forests won’t grow where P < 15” / yr. Forest type depends strongly on rainfall quantity, type (snow, rain) and timing (summer, winter). Water vapor, droplets of water suspended in the air, builds up in the Earth's atmosphere. . Water vapor in the atmosphere is visible as clouds and fog. . Water vapor collects with other materials, such as dust, in clouds. Precipitation condenses, or forms, around these tiny pieces of material, called cloud condensation nuclei (CCN).. Water vapor, droplets of water suspended in the air, builds up in the Earth's atmosphere. . Water vapor in the atmosphere is visible as clouds and fog. . Water vapor collects with other materials, such as dust, in clouds. Precipitation condenses, or forms, around these tiny pieces of material, called cloud condensation nuclei (CCN).. Nari. (2001). Yang, M.-J.. *, S. A. Braun, and D.-S. Chen, 2011: Water budget of Typhoon . Nari. (2001)..  Mon. . Wea. . Rev.. , . 139. , 3809-3828, . doi. : 10.1175/MWR-D-10-05090.1. (SCI). Outline . Artificial rain making.. Process of Precipitation:. Precipitation is caused by condensation of water . vapours. of the air mass. . The ascending air mass with sufficient amount of water . vapours. becomes saturated due to adiabatic cooling. Condensation of water . Precipitation mechanisms. Rainall. maps. Rainfall hyetographs. Nexrad. measurement of rainfall. Reading for today – Applied Hydrology, Sec 3.3 and 3.4. Reading for Thursday – Applied Hydrology, Sec 3.5 and 3.6. . crystals.. Is is simply a matter of the water droplets combining to form raindrops?. Answer: No, Cloud droplets are TINY! It would take thousands of them happening to combine to form a single raindrop.. . 7-. Evaporation. It is the process of converting water from liquid to gas and is also the process of transferring water vapor from the Earth or water bodies to the atmosphere where the sun is the source of evaporation energy. Evaporation often involves the erosion of plants, although together they are specifically referred to as evaporation.. . Fig 12.2. Distribution of water in the hydrosphere. The middle and lower bars show the percentage distribution of the 2.8 percent of total . hydrospheric. water that is fresh. Of that freshwater component, only about one-tenth is easily available to humans.