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Precipitation
- 10. If P1, P2, P3, … Pn etc are the precipitation or rainfall values measured at ‘n’ gauge stations, then
- 35. The weight given to the precipitation is inversely proportional to the square of the distance between centroid of basin and gauge point
- 38. Float type and weight type gauges produce record in form of mass curve
- 51. To provide area weightings to the gauge values, Thiessen polygons are drawn around the rainfall stations over the isohyetal pattern