黃鵬良，周自忠，姚靜遠，章 煥，虞歷堯

(浙江省大氣探測技術保障中心，浙江 杭州310016)

　　摘 要: 為研究雙翻斗雨量計測量協調性，通過模擬降水建立統計模型，分析上下翻斗排水量的構成因子，上翻斗流失量與傾角及雨強的關系，論證下翻斗流失量的必然性及消失現象，討論下翻斗流失量被上翻斗的影響程度，以及下翻斗翻轉閾值和流失量的合理取值范圍。根據上翻斗不同翻轉閾值對測量結果的影響對雨量計的測量協調狀態進行分類，指出大小雨強兩極分化原因和解決方法，得出雨量計最佳協調狀態時的數據模型為：上翻斗翻轉閾值接近0.1 mm，下翻斗翻轉閾值接近0.08 mm，上下翻斗在小雨強下完全同步而大雨強下翻轉比例低于9∶10。實踐表明：據此模型將上下翻斗翻轉閾值和不同雨強下翻轉比例關系納入雙翻斗雨量計檢修流程中可明顯提高檢定效率，也為雙翻斗雨量計的分析研究提供新的方法和思路。

　　關鍵詞：雙翻斗雨量計;模型分析;協調性;翻轉比例;流失量;狀態分類;兩極分化

　　Research on measurement coordination of SL3-1 double bucket raingauge

　　HUANG Pengliang, ZHOU Zizhong, YAO Jingyuan, ZHANG Huan, YU Liyao

　　(Atmospheric Detection Technology Center of Zhejiang Province, Hangzhou 310016, China)

　　Abstract： In order to study the measurement coordination of double bucket raingauge, a statistical model is established by simulating rainfall process, which could analyze the constituent factors of the upper and lower bucket displacement, analyze the relation between the wastage and inclination angle and rainfall intensity, demonstrate the wastage inevitability of lower bucket and the phenomenon of wastage disappearing, discuss the influence of wastage of lower bucket from upper bucket, and discuss the reasonable value range of capacity and wastage of upper bucket. According to the influence of flip threshold from upper bucket on the measurement results, gauge measurement coordination states are classified, and reasons and solutions of the polarization of different rain intensities are pointed out. Data model of the best coordination state of raingauge is drawn as: flip threshold of upper bucket and lower bucket is 0.1mm and 0.08mm respectively, tip between buckets can be synchronous under light intensity, and lower than 9:10 under heavy intensity. Practice indicates that, according to the model, it can improve the verification efficiency when incorporated flip threshold and tipping proportion under different rain intensities are included in maintenance process, which could provide a new method and idea for the analysis and research of double bucket raingauge.

　　Key words：double bucket raingauge; model analysis; coordination; tipping proportion; wastage; state classification; polarization