The Effect of Wind Speed on The Measurement of Rainfall

• Main Authors: Guo, Yuh-lin, 郭玉麟
• Other Authors: Hsu, Sen-Hsiung
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/92115886373028323457

碩士 === 國立屏東科技大學 === 水土保持系 === 92 === The aim of this study is to investigate the effect of wind speed on the measurement of rainfall. The study site is at the meteorological station of National Pingtung University of Science and Technology, in which one five-opening directional raingauge and one standard raingauge are installed. Then, the differences between both raingauge are compared and analyzed in the hope of truly encouraging the accuracy of the measurements of rainfalls. After data collection and analysis, results are summarized as follows: 1.The rainfall loss rate of increases as the wind speed increases and as the rainfall intensity decreases. 2.The analysis of every 10 minutes records can advise the ralation between rainfall intensity and wind speed during a typhoon. 3.While the rainfall intensity is above 10mm/hr,the rainfall loss rate is about 4%.when the averagewind speed reaches 2m/s. The rainfall loss rate is about 17%,when the average wind speed reaches 10m/s. 4.During the typhoon attacking, the rainfall loss rate is about 19 % when the average wind speed reaches 10m/s. The rainfall loss rate is about 43 % when the average wind speed reaches 18m/s.