High accuracy tipping bucket rain gauge

In the application of land slide, flood forecast or inflow forecast, the data from the rain intensity is important for the hydrologist and/or geologist to estimate rainfall and amount of water that flows into the interesting area. The tipping bucket rain gauge is widely used especially in the ground-based rainfall measurement. In this paper, we describe behavior of the tipping bucket rain gauge in various rain intensities, from light rain to extreme rain. We also describe the problem that ordinary tipping bucket rain gauge suffer, the calibration and how to improve the accuracy in the lab and its results.