Draw Thiessen polygons on the catchment shown below. If the rainfall depths recorded by Gauge A, B, and C are 19mm, 8mm, and 9mm and the corresponding polygon areas are 5.1 km2, 3.2km2, and 5.3 km2, estimate the catchment average rainfall depth and the total volume of water from this rainfall event.
Draw Thiessen polygons on the catchment shown below. If the rainfall depths recorded by Gauge A, B, and C are 19mm, 8mm, and 9mm and the corresponding polygon areas are 5.1 km2, 3.2km2, and 5.3 km2, estimate the catchment average rainfall depth and the total volume of water from this rainfall event.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:a) Draw Thiessen polygons on the catchment shown below. If the rainfall depths recorded
by Gauge A, B, and C are 19mm, 8mm, and 9mm and the corresponding polygon
areas are 5.1 km2, 3.2km2, and 5.3 km2, estimate the catchment average rainfall
depth and the total volume of water from this rainfall event.
b) Based on the data, sketch 5mm, 10mm, 15mm,20mm isohyets apporixmately.
B
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