The standard error of mean areal rainfall was calculated for various densities of rain gauge network in a small mountainous watershed in the summer of 1978. It is shown that a) the optimum gauge density required to assess mean rainfall is about 3 gauges/km2; b) the »true« variability in the spatial distribution of rainfall decreases with increasing rainfall amount; and c) the relationship between »true« variability and rainfall volume is linear in that watershed.
Assessment of »True« Variability of Small Rainfall Events in a Small Mountainous Watershed in the Summer
Lawrence C. Nkemdirim, Brian D. Meller; Assessment of »True« Variability of Small Rainfall Events in a Small Mountainous Watershed in the Summer. Hydrology Research 1 August 1982; 13 (4): 205–212. doi: https://doi.org/10.2166/nh.1982.0017
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