天氣雷達(dá)風(fēng)暴跟蹤信息拼圖技術(shù)設(shè)計(jì)與應(yīng)用

doi:10.3969/2020jms.0049

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天氣雷達(dá)風(fēng)暴跟蹤信息拼圖技術(shù)設(shè)計(jì)與應(yīng)用
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                        10.3969/2020jms.0049
                    
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基金項(xiàng)目:國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目（2018YFC1507503；2018YFC1506103）；國(guó)家自然科學(xué)基金面上項(xiàng)目（41575036；41975001）；江蘇省科技廳項(xiàng)目（BE2017776）；江西省重點(diǎn)研發(fā)計(jì)劃項(xiàng)目（20171BBG7005）；中國(guó)氣象局氣象關(guān)鍵技術(shù)集成與應(yīng)用項(xiàng)目（CMAGJ2013M74）；中國(guó)氣象科學(xué)研究院開放課題（2012LASWB01）；江蘇省氣象局北極閣開放研究基金項(xiàng)目（BJG201205）；景德鎮(zhèn)市科技計(jì)劃項(xiàng)目（2017NYSF002）

Design and application of weather radar storm tracking information mosaic technology

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基于天氣雷達(dá)風(fēng)暴識(shí)別跟蹤信息STI（Storm Tracking Information）拼圖技術(shù)設(shè)計(jì)與應(yīng)用，對(duì)該技術(shù)在江西雷電、雷暴大風(fēng)、冰雹等強(qiáng)天氣監(jiān)測(cè)預(yù)警能力進(jìn)行了分析。結(jié)果顯示：通過(guò)對(duì)江西8部天氣雷達(dá)的STI產(chǎn)品進(jìn)行雷達(dá)算法解碼，建立STI數(shù)據(jù)庫(kù)，按照雷達(dá)拼圖時(shí)間間隔，從數(shù)據(jù)庫(kù)中調(diào)入STI數(shù)據(jù)進(jìn)行15 min、30 min、45 min和60 min路徑顯示，形成多部雷達(dá)的組合STI產(chǎn)品。組合STI產(chǎn)品彌補(bǔ)了單部雷達(dá)的不足，對(duì)于判斷未來(lái)1 h回波的移動(dòng)方向、移動(dòng)速度有明顯的指示意義。而密集指向區(qū)對(duì)應(yīng)于回波未來(lái)位置的確定效果更好，考慮到整體移向的修正位置更佳，在多次颮線、冰雹等強(qiáng)天氣過(guò)程中得到了驗(yàn)證。組合STI產(chǎn)品還有助于識(shí)別回波系統(tǒng)，對(duì)于多個(gè)系統(tǒng)并存的天氣過(guò)程中有很好的對(duì)照價(jià)值。密集指向區(qū)的出現(xiàn)說(shuō)明回波系統(tǒng)進(jìn)入發(fā)展旺盛期，密集指向區(qū)的消失預(yù)示著回波系統(tǒng)明顯減弱。

Abstract:

This paper introduces the design and application of Storm Tracking Information (STI) mosaic technology based on weather radar storm identification and tracking information, and analyzes the strong weather monitoring and early warning capability of this technology in Jiangxi province, such as lightning, thunderstorms, strong winds, hail, etc. The main conclusions are as follows:through the radar algorithm decoding of STI products of 8 weather radars in Jiangxi province, STI database is established, and STI data are transferred from the database for 15 minutes, 30 minutes, 45 minutes and 60 minutes path display according to the radar mosaic time interval, thus forming a combined STI product of multiple radars. The combined STI products make up for the shortage of a single radar and have obvious indication significance for judging the moving direction and moving speed of the echo in the next hour. However, the effect of determining the future position of the dense pointing area corresponding to the echo is better. Considering that the corrected position of the whole moving direction is better, it has been verified in several squall lines, hail and other strong weather processes. The combination of STI products is also helpful to identify echo systems and has a good contrast value for weather processes in which multiple systems coexist. The appearance of the dense pointing area indicates that the echo system has entered a vigorous period of development, and the disappearance of the dense pointing area indicates that the echo system is obviously weakened.

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陳鮑發(fā),馬中元,徐芬,夏文梅,鄭媛媛,余劍浩.天氣雷達(dá)風(fēng)暴跟蹤信息拼圖技術(shù)設(shè)計(jì)與應(yīng)用.氣象科學(xué),2020,40(6):838-848 CHEN Baofa, MA Zhongyuan, XU Fen, XIA Wenmei, ZHENG Yuanyuan, YU Jianhao. Design and application of weather radar storm tracking information mosaic technology. Journal of the Meteorological Sciences,2020,40(6):838-848

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收稿日期:2020-01-11
最后修改日期:2020-06-07
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在線發(fā)布日期: 2021-01-12
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