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»á·ÉµÄ²»ÊÇÔÆ(lazy½õϪ´ú·¢): ½ð±Ò+10, ЭÖú½áÌû£¬¸ÐлӦÖú£¡ 2016-03-16 09:14:44
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Research on the method and experiment of path rainfall intensity inversion using a microwave link
×÷Õß: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
¾í: 64  ÆÚ: 17
ÎÄÏ׺Å: 174301
DOI: 10.7498/aps.64.174301
³ö°æÄê: SEP 5 2015
²é¿´ÆÚ¿¯ÐÅÏ¢
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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.
¹Ø¼ü´Ê
×÷Õ߹ؼü´Ê:rain-induced microwave attenuation measurements; microwave link; inversion of rain rate
KeyWords Plus:COMMUNICATION-NETWORKS; BAND
×÷ÕßÐÅÏ¢
ͨѶ×÷ÕßµØÖ·: Liu, XC (ͨѶ×÷Õß)
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        PLA Univ Sci & Technol, Coll Meteorol & Oceanog, Nanjing 211101, Jiangsu, Peoples R China.
µØÖ·:
ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ        [ 1 ] PLA Univ Sci & Technol, Coll Meteorol & Oceanog, Nanjing 211101, Jiangsu, Peoples R China
              [ 2 ] PLA, Unit 93721, Shuozhou 038301, Peoples R China
µç×ÓÓʼþµØÖ·:liuxc2012@hotmail.com
»ù½ð×ÊÖúÖÂл
»ù½ð×ÊÖú»ú¹¹        ÊÚȨºÅ
National Natural Science Foundation of China        
41475020
41405024
41327003
²é¿´»ù½ð×ÊÖúÐÅÏ¢   
³ö°æÉÌ
CHINESE PHYSICAL SOC, P O BOX 603, BEIJING 100080, PEOPLES R CHINA
Àà±ð / ·ÖÀà
Ñо¿·½Ïòhysics
Web of Science Àà±ðhysics, Multidisciplinary
ÎÄÏ×ÐÅÏ¢
ÎÄÏ×ÀàÐÍ:Article
ÓïÖÖ:Chinese
Èë²ØºÅ: WOS:000362976900022
ISSN: 1000-3290
ÆÚ¿¯ÐÅÏ¢
Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports®
ÆäËûÐÅÏ¢
IDS ºÅ: CT7EO
Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 22
Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 1
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