Copeland wrote:it's supposed to be surface flow rate per cm of precipitation, or the y axis on a unit hydrograph, which basically records how precipitation affects waterflow on land. I'm not even sure if it has any physical meaning. Right, and I fucked up by multiplying instead of dividing the cm, fuck.
vgtbls wrote:Copeland wrote:it's supposed to be surface flow rate per cm of precipitation, or the y axis on a unit hydrograph, which basically records how precipitation affects waterflow on land. I'm not even sure if it has any physical meaning. Right, and I fucked up by multiplying instead of dividing the cm, fuck.
i just wrapped up a Hydrology class too. The physical importance is that in a watershed, there's a non-linear relationship between precipitation and resultant flow. One of the reasons is that at low precipitation depths, the soil has capacity to absorb most or all of the water. At higher depths, the infiltration capacity is overwhelmed and the bulk of precipitation becomes overland flow. Each watershed will have a unique curve for this m^3/s/cm property.
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