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Research on the method and experiment of path rainfall intensity inversion using a microwave link
作者:Gao, TC (Gao Tai-Chang)[ 1 ] ; Song, K (Song Kun)[ 1 ] ; Liu, XC (Liu Xi-Chuan)[ 1 ] ; Yin, M (Yin Min)[ 1 ] ; Liu, L (Liu Lei)[ 1 ] ; Jiang, ST (Jiang Shi-Tai)[ 2 ]
ACTA PHYSICA SINICA
卷: 64 期: 17
文獻號: 174301
DOI: 10.7498/aps.64.174301
出版年: SEP 5 2015
查看期刊信息
摘要
Accurate measurement of rainfall with high spatial and temporal resolution have important significance in meteorology, hydrology, agriculture, environment, flood warning and weather forecasting, etc. Based on the rain-induced power-law attenuation, an inversion method of the path rainfall intensity is proposed by using a microwave link. Starting from the atmospheric gas absorption attenuation model, a correction model of rainfall effective attenuation and a rainfall inversion model for line-of-sight microwave links are proposed, based on the microwave rain attenuation characteristics and raindrop size distribution statistics. A line-of-sight microwave link is designed and used to measure the rainfall, and the path average rain rate is inversed by means of rainfall inversion model, which is compared with a disdrometer. Results show that the correlation coefficient of rain rate inversed by microwave link with that of disdrometer is higher than 0.6 mostly, and the maximum value is 0.9647; the error of the accumulated rain amount is less than 0 5 mm, and the minimum value is 0.0827 mm; the relative error of the accumulated rain amount is less than 15%, the minimum value is 3.3415%. Experiments confirm the feasibility and accuracy of rainfall inversion obtained using a microwave link.
關鍵詞
作者關鍵詞:rain-induced microwave attenuation measurements; microwave link; inversion of rain rate
KeyWords Plus:COMMUNICATION-NETWORKS; BAND
作者信息
通訊作者地址: Liu, XC (通訊作者)
顯示增強組織信息的名稱 PLA Univ Sci & Technol, Coll Meteorol & Oceanog, Nanjing 211101, Jiangsu, Peoples R China.
地址:
顯示增強組織信息的名稱 [ 1 ] PLA Univ Sci & Technol, Coll Meteorol & Oceanog, Nanjing 211101, Jiangsu, Peoples R China
[ 2 ] PLA, Unit 93721, Shuozhou 038301, Peoples R China
電子郵件地址:liuxc2012@hotmail.com
基金資助致謝
基金資助機構(gòu) 授權號
National Natural Science Foundation of China
41475020
41405024
41327003
查看基金資助信息
出版商
CHINESE PHYSICAL SOC, P O BOX 603, BEIJING 100080, PEOPLES R CHINA
類別 / 分類
研究方向

hysics
Web of Science 類別

hysics, Multidisciplinary
文獻信息
文獻類型:Article
語種:Chinese
入藏號: WOS:000362976900022
ISSN: 1000-3290
期刊信息
Impact Factor (影響因子): Journal Citation Reports®
其他信息
IDS 號: CT7EO
Web of Science 核心合集中的 "引用的參考文獻": 22
Web of Science 核心合集中的 "被引頻次": 1

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