系留氣艇探測(cè)風(fēng)速的誤差訂正及其應(yīng)用評(píng)估

doi:10.3969/2012jms.0180

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系留氣艇探測(cè)風(fēng)速的誤差訂正及其應(yīng)用評(píng)估
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                        10.3969/2012jms.0180
                    
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基金項(xiàng)目:國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973計(jì)劃)項(xiàng)目(2010CB428501)

Correction of wind speed measured by tethered balloon sounding system and application to evaluating the data from wind profile radar

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使用系留氣艇探空系統(tǒng)在常州、蘇州、南京市區(qū)對(duì)邊界層風(fēng)速、溫度、濕度廓線進(jìn)行了觀測(cè),原始數(shù)據(jù)表明探測(cè)結(jié)果存在明顯的系統(tǒng)誤差。本文主要討論風(fēng)速訂正問(wèn)題,分析發(fā)現(xiàn)風(fēng)速誤差與高度和風(fēng)速有關(guān),據(jù)此提出了依據(jù)高度和依據(jù)風(fēng)速的兩種訂正方案。對(duì)比結(jié)果表明:兩種方案都能有效修正系留氣艇測(cè)量風(fēng)速的系統(tǒng)誤差,高度訂正方案表現(xiàn)更好。本文還用訂正后的系留氣艇探測(cè)結(jié)果與蘇州市氣象局的風(fēng)廓線雷達(dá)資料進(jìn)行對(duì)比,結(jié)果顯示風(fēng)廓線雷達(dá)探測(cè)結(jié)果在500 m以下系統(tǒng)偏小。

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Tethered balloon sounding system was used to measure the profiles of wind speed, temperature and humidity of the atmospheric boundary layer in Changzhou, Suzhou and Nanjing. The original data show that the observational results have systemic errors. Therefore the error correction method of wind speed was discussed in this paper. Analyses show that the error of wind speed was concerned with height and the magnitude of wind speed, so two methods of error correction, the height-related scheme and the speed-related scheme, were proposed. The corrected results indicated that the two methods can remove the error effectively, and the height-related scheme was much better. Furthermore, the corrected wind speed from tethered balloon sounding was compared to that from wind profile radar at Suzhou Meteorological Bureau, and the results show that the wind speed detected by wind profile radar was generally underestimated from ground to an elevation of 500 m.

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王昊哲,孫鑒濘,朱蓮芳,劉鵬,沈歷都.系留氣艇探測(cè)風(fēng)速的誤差訂正及其應(yīng)用評(píng)估.氣象科學(xué),2013,33(5):485-491 WANG Haozhe, SUN Jianning, ZHU Lianfang, LIU Peng, SHEN Lidu. Correction of wind speed measured by tethered balloon sounding system and application to evaluating the data from wind profile radar. Journal of the Meteorological Sciences,2013,33(5):485-491

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收稿日期:2012-05-28
最后修改日期:2012-07-19
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在線發(fā)布日期: 2013-10-31
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