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How do you calculate rainfall using the thiessen polygon method?
Wiki User
∙ 11y ago
Thiessen Polygon method is a weighted average mean method used to calculate average rainfall. The catchment area is divided into subcatchments using the Thiessen polygon method.
Wiki User
∙ 11y ago
To calculate rainfall using the Thiessen polygon method, you first need to divide the area into polygons based on rain gauge locations. Then, calculate the area of influence of each rain gauge within its polygon. Finally, you can determine the weight of each rain gauge based on its influence area, which is used to calculate the average rainfall for the entire region.
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the watershed map of an area with annual precipitation from the upper left clockwise are 1.9,2.1,1.8,1.9,2.1,2.2 inches respectively.draw the theissen polygon map for the watershed and if the areas for each rainguage,again clockwise from upper left are 65,150,55,140,215,270 acres respectively,calculate the annual average precipitation for the area
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