典型地區(qū)高空大氣光學(xué)湍流模擬研究
發(fā)布時(shí)間:2017-12-27 08:07
本文關(guān)鍵詞:典型地區(qū)高空大氣光學(xué)湍流模擬研究 出處:《光學(xué)學(xué)報(bào)》2016年05期 論文類型:期刊論文
更多相關(guān)文章: 大氣光學(xué) 湍流廓線 數(shù)值天氣預(yù)報(bào)模式 湍流參數(shù)化
【摘要】:依據(jù)Tatarski大氣光學(xué)湍流參數(shù)化方案,利用數(shù)值天氣預(yù)報(bào)模式(WRF)模擬了高美古、茂名、烏魯木齊等典型地區(qū)高空大氣光學(xué)湍流廓線。并將高美古和茂名使用溫度脈動(dòng)儀實(shí)測(cè)的光學(xué)湍流與其對(duì)應(yīng)的模擬數(shù)據(jù)做了對(duì)比,結(jié)果表明,模擬的光學(xué)湍流廓線與實(shí)測(cè)的光學(xué)湍流廓線吻合得較好,相關(guān)性在76%左右。高美古和茂名的對(duì)比驗(yàn)證結(jié)果表明,利用WRF模擬高空大氣光學(xué)湍流的方法是可行的,模擬得到了烏魯木齊高空大氣光學(xué)湍流廓線。結(jié)合這3個(gè)典型地區(qū)的氣候特點(diǎn),分析了不同氣候類型下光學(xué)湍流的特征和變化趨勢(shì)。
[Abstract]:On the basis of atmospheric optical turbulence parameters Tatarski scheme, using the numerical weather prediction model (WRF) is simulated at Gaomeigu, Maoming, Urumqi and other typical areas of atmospheric optical turbulence profile. The optical turbulence measured by Gao Meigu and Maoming is compared with the corresponding simulated data. The results show that the simulated optical turbulence profiles agree well with the measured optical turbulence profiles, and the correlation is about 76%. The comparison between Gao Meigu and Maoming shows that the method of simulating the optical turbulence in the upper atmosphere by WRF is feasible, and the upper atmospheric optical turbulence profile of Urumqi is simulated. Based on the climatic characteristics of the 3 typical regions, the characteristics and changing trends of optical turbulence under different climate types are analyzed.
【作者單位】: 中國(guó)科學(xué)院安徽光學(xué)精密機(jī)械研究所中國(guó)科學(xué)院大氣成分與光學(xué)重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)技術(shù)大學(xué)研究生院科學(xué)島分院;中國(guó)科學(xué)技術(shù)大學(xué)環(huán)境科學(xué)與光電技術(shù)學(xué)院;
【基金】:國(guó)家自然科學(xué)基金(41275020)
【分類號(hào)】:O436;O357.5
【正文快照】: 1引言光波在大氣中傳輸時(shí),受大氣光學(xué)湍流的影響,出現(xiàn)光強(qiáng)閃爍、像點(diǎn)抖動(dòng)、成像模糊等現(xiàn)象,從而影響光0501001-1電系統(tǒng)的性能[1]。折射率結(jié)構(gòu)常數(shù)(C2n)是表征大氣光學(xué)湍流強(qiáng)度的重要參數(shù)。目前有多種測(cè)量大氣折射率結(jié)構(gòu)常數(shù)的手段,但是利用測(cè)量手段在時(shí)間和空間上獲取C2n極其,
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