Topic%202%20Hydrology%20slides

Topic%202%20Hydrology%20slides - Hydrosphere Aboveground...

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1 Hydrosphere Universal Solvent - Transporting Agent - Essential for Biology 200 500 1000 2000 100 50 100 200 500 1000 2000 Actual ET (mm/yr) Aboveground NPP (g/m 2 /yr) NPP versus Actual Evapotranspiration AET is an integration of solar radiation and water availability Watershed Scale Investigations Water Nutrients ET Precipitation Precipitation Stemflow Throughfall Evapotranspiration Infiltration/ Overland flow Lateral flow Percolation Snowpack Hydrosphere Soil storage Coastal forest 20-40% of total annual precipitation inputs Fog can be a significant water input Spatial Variability in Canopy Throughfall & Stemflow
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2 Throughfall = 75-90% of precipitation Stemflow = 2-6% of precipitation Measuring Canopy Sierra Nevada – Winter Snowpack Average maximum snowpack exceeds 100 inches above 7,000 feet elevation 72+ 48 - 72 24 - 48 6 - 24 0 - 6 0 Snow Depth (inches) Snow Pillows Snow Courses California’s Mediterranean Climate Winter Feast Summer Famine
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Topic%202%20Hydrology%20slides - Hydrosphere Aboveground...

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