Lecture 10 - Dr. Thorsten Wagener Penn State University...

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Dr. Thorsten Wagener Penn State University Precipitation - Evaporation ater Resources Water Resources ngineering Engineering ecture 10 1 - Lecture 10 http://geography.uoregon.edu/envchange/clim_animations/gifs/pminuse_web.gif
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ydrologic Processes Hydrologic Processes 2
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ontent Content . arth’s Energy Balance 1. Earth s Energy Balance 2. Evapotranspiration . ater Balance Approach 1. Water Balance Approach 3. Measuring Evaporation vaporation 4. Evaporation 1. Evaporation Pan 2. Energy Balance Method 3. Aerodynamic Method 4. Combined Aerodynamic and Energy Balance 3 Method
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vapotranspiration ( thus requires Evapotranspiration (et) thus requires Solar Local Radiation Precipitation Solar nergy Available ater Energy Water Because both solar energy and available water are necessary to cause evaporation and transpiration, energy will limit the rate of et at some times, and water availability will limit the rate at other times. 4
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vaporation Figure 7.3.1 (p. 228) Evaporation (magnified one billion times) (from Feynman et al. (1963)). Evaporation Air (nitrogen, oxygen, water vapor, carbon dioxide, argon, …) Water The supply of energy to provide latent heat of vaporization 5 and the ability to transport water vapor away from the evaporative surface are the two major factors that influence evaporation.
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http://en.wikipedia.org/wiki/Hurricanes Map of the cumulative tracks of all tropical cyclones during the 1985–2005 time period. The Pacific Ocean west of the International Date Line sees more tropical cyclones than any other basin, while there is almost no activity in 6 the Atlantic Ocean south of the Equator .
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This note was uploaded on 04/11/2008 for the course C E 361 taught by Professor Reed,patrickmichwalters,geoffrey during the Spring '07 term at Pennsylvania State University, University Park.

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Lecture 10 - Dr. Thorsten Wagener Penn State University...

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