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Chapter Viii Relations Between Precipitation and Runoff (1)
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Chapter VIII RELATIONS BETWEEN PRECIPITATION AND RUNOFF
ANGELES, Alyssa Rose S.
Physics of Snowmelt
Snow surface0°C
shortwave longwave
wind
humidity
temperature sensible heat flux
Ground surface
latent heat flux
conduction
precipitation
50% or less
Snow surface
longwave
84 mm
air temperature
snow temperature
atmospheric vapor pressure
cloud
20 mm
Snow surface
conduction
convection
condensation
evaporation
Snow surface
convection
air temprature
snow temperature
vapor pressure wind velocity
𝑀 h=𝑘h (𝑇𝑎−𝑇 𝑜 )𝑣𝑀𝑒=𝑘𝑒 (𝑒𝑎−𝑒𝑜 )𝑣
Snow surface
Ground surface
conduction
100 mm
Snow surface
0°C
𝑀 𝑟=4.19𝑃𝑇𝑤
334 = rainfall in mm = wet-bulb temperature in °C
= latent heat of fusion in J/g
= specific heat of water in J/g/°C
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