摘要:本文分析了幾種有代表性的[C2n]廓線模式,計(jì)算了這些模式的相干長度 、等暈角以及不同大氣層湍流貢獻(xiàn)百分比。提出了修正的CLEAR Ⅰ夜晚模式,并對(duì)Hufnagel- Valley(5/7)模式進(jìn)行了討論。
關(guān)鍵詞:光學(xué)湍流廓線模式;修正的CLEAR Ⅰ夜晚模式;分析與討論
中圖分類號(hào):92.60.hk ,47.27.E 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1001-2443(2023)02-0103-05
引 言
2 湍流模式的整層積分量及近地面層、邊界層、自由大氣層湍流對(duì)整層積分量的貢獻(xiàn)
3 修正的CLEAR Ⅰ夜晚模式
4 Hufnagel-Valley 5/7模式的一點(diǎn)存疑
5 結(jié) 論
本文歸納分析了幾種有代表性的[C2n]廓線模式,計(jì)算了這些模式的相干長度[r0]、等暈角[θ0]以及不同大氣層湍流貢獻(xiàn)百分比,并推算出這些模式的溫度結(jié)構(gòu)常數(shù)[C2T]廓線,提出了修正的CLEAR Ⅰ夜晚模式,并對(duì)Hufnagel- Valley(5/7)模式進(jìn)行了討論。結(jié)論如下:
(1)首次發(fā)現(xiàn)CLEAR Ⅰ夜晚模式的積分量[r0]、[θ0]與來源文獻(xiàn)[1]不符,給出了修正的CLEAR Ⅰ夜晚模式表達(dá)式。
(2)對(duì)流層頂以上H-V(5/7)模式[C2T]是唯一的隨高度不是遞增而是遞減,對(duì)流層頂以上[C2n]隨高度遞減過快存疑。
參考文獻(xiàn):
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Doubts about the CLEAR Ⅰ Night Model and Hufnagel- Valley(5/7) Model
WU Xiao-qing
(1.Key Laboratory of Atmospheric Optics,Anhui Institute of Optics and Fine Mechanics,HFIPS,Chinese Academy of Sciences,Hefei 230031,China;2.Advanced Laser Technology Laboratory of Anhui Province,Hefei 230037,China;3. Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China)
Abstract: In this paper, several representative [C2n] profile models are analyzed, and the coherence length, isoplanatie angle and integrated contribution of coherence length, isoplanatie angle from different atmospheric turbulence layer are calculated. A modified CLEAR I night model is proposed, and the Hufnagel-Valley (5/7) model is discussed.
Key words: optical turbulence profile model; modified CLEAR I night model; analysis and discussion
(責(zé)任編輯:葉松慶)