A reliable model for estimating the turbulence intensity and integrated astroclimatic parameters from sounding data
ABSTRACT The vertical distributions of atmospheric turbulence ($C_n^2$) are key factors in determining the performance of ground-based telescopes and interferometers. As site-testing campaigns are extremely expensive, atmospheric modelling may represent the estimated results of astronomical sites. W...
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Veröffentlicht in: | Monthly notices of the Royal Astronomical Society 2021-06, Vol.503 (4), p.5692-5703 |
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creator | Wu, Su Yang, Qike Xu, Jiangyue Luo, Tao Qing, Chun Su, Changdong Huang, Chan Wu, Xiaoqing Li, Xuebin |
description | ABSTRACT
The vertical distributions of atmospheric turbulence ($C_n^2$) are key factors in determining the performance of ground-based telescopes and interferometers. As site-testing campaigns are extremely expensive, atmospheric modelling may represent the estimated results of astronomical sites. We propose a new outer-scale model to estimate refractive index structure constant ($C_n^2$) profiles containing potential temperature and wind shear. The integrated astroclimatic parameters (Fried parameter r0, seeing ε, isoplanatic angle θ0, and coherence time τ0) can also be calculated using this outer-scale model. Radiosonde measurements from a filed campaign at Tibet (Lhasa) and Rongcheng (Shandong) are utilized to quantify the performance of this model. Compared with the Dewan model, HMNSP99 model and Thorpe model, the new model gives better results as a profile and an astroclimatic parameter estimator. Compared with the measured median profile, the correlation coefficient reaches 0.88 in Lhasa and 0.87 in Rongcheng. |
doi_str_mv | 10.1093/mnras/stab515 |
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The vertical distributions of atmospheric turbulence ($C_n^2$) are key factors in determining the performance of ground-based telescopes and interferometers. As site-testing campaigns are extremely expensive, atmospheric modelling may represent the estimated results of astronomical sites. We propose a new outer-scale model to estimate refractive index structure constant ($C_n^2$) profiles containing potential temperature and wind shear. The integrated astroclimatic parameters (Fried parameter r0, seeing ε, isoplanatic angle θ0, and coherence time τ0) can also be calculated using this outer-scale model. Radiosonde measurements from a filed campaign at Tibet (Lhasa) and Rongcheng (Shandong) are utilized to quantify the performance of this model. Compared with the Dewan model, HMNSP99 model and Thorpe model, the new model gives better results as a profile and an astroclimatic parameter estimator. Compared with the measured median profile, the correlation coefficient reaches 0.88 in Lhasa and 0.87 in Rongcheng.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1093/mnras/stab515</identifier><language>eng</language><publisher>Oxford University Press</publisher><ispartof>Monthly notices of the Royal Astronomical Society, 2021-06, Vol.503 (4), p.5692-5703</ispartof><rights>2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c270t-21bfffba36dbb59d935e82ac3ac16b9688fc9f11a4b44a5bd5bf9a1870b18c433</citedby><cites>FETCH-LOGICAL-c270t-21bfffba36dbb59d935e82ac3ac16b9688fc9f11a4b44a5bd5bf9a1870b18c433</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1598,27903,27904</link.rule.ids><linktorsrc>$$Uhttps://dx.doi.org/10.1093/mnras/stab515$$EView_record_in_Oxford_University_Press$$FView_record_in_$$GOxford_University_Press</linktorsrc></links><search><creatorcontrib>Wu, Su</creatorcontrib><creatorcontrib>Yang, Qike</creatorcontrib><creatorcontrib>Xu, Jiangyue</creatorcontrib><creatorcontrib>Luo, Tao</creatorcontrib><creatorcontrib>Qing, Chun</creatorcontrib><creatorcontrib>Su, Changdong</creatorcontrib><creatorcontrib>Huang, Chan</creatorcontrib><creatorcontrib>Wu, Xiaoqing</creatorcontrib><creatorcontrib>Li, Xuebin</creatorcontrib><title>A reliable model for estimating the turbulence intensity and integrated astroclimatic parameters from sounding data</title><title>Monthly notices of the Royal Astronomical Society</title><description>ABSTRACT
The vertical distributions of atmospheric turbulence ($C_n^2$) are key factors in determining the performance of ground-based telescopes and interferometers. As site-testing campaigns are extremely expensive, atmospheric modelling may represent the estimated results of astronomical sites. We propose a new outer-scale model to estimate refractive index structure constant ($C_n^2$) profiles containing potential temperature and wind shear. The integrated astroclimatic parameters (Fried parameter r0, seeing ε, isoplanatic angle θ0, and coherence time τ0) can also be calculated using this outer-scale model. Radiosonde measurements from a filed campaign at Tibet (Lhasa) and Rongcheng (Shandong) are utilized to quantify the performance of this model. Compared with the Dewan model, HMNSP99 model and Thorpe model, the new model gives better results as a profile and an astroclimatic parameter estimator. Compared with the measured median profile, the correlation coefficient reaches 0.88 in Lhasa and 0.87 in Rongcheng.</description><issn>0035-8711</issn><issn>1365-2966</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkDtPwzAUhS0EEqUwsntkCbXj2I3HquIlVWKBObq2r0tQYle2M_Tf09fOdHSl7x4dfYQ8cvbMmRaLMSTIi1zASC6vyIwLJataK3VNZowJWbVLzm_JXc6_jLFG1GpG8oomHHowA9IxOhyoj4liLv0IpQ9bWn6QlimZacBgkfahYMh92VMI7nRtExR0FHJJ0Q6nN0t3kGDEgilTn-JIc5yCO9Y5KHBPbjwMGR8uOSffry9f6_dq8_n2sV5tKlsvWalqbrz3BoRyxkjttJDY1mAFWK6MVm3rrfacQ2OaBqRx0ngNvF0yw1vbCDEn1bnXpphzQt_t0mFf2necdUdj3clYdzF24J_OfJx2_6B_GVpzPg</recordid><startdate>20210601</startdate><enddate>20210601</enddate><creator>Wu, Su</creator><creator>Yang, Qike</creator><creator>Xu, Jiangyue</creator><creator>Luo, Tao</creator><creator>Qing, Chun</creator><creator>Su, Changdong</creator><creator>Huang, Chan</creator><creator>Wu, Xiaoqing</creator><creator>Li, Xuebin</creator><general>Oxford University Press</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20210601</creationdate><title>A reliable model for estimating the turbulence intensity and integrated astroclimatic parameters from sounding data</title><author>Wu, Su ; Yang, Qike ; Xu, Jiangyue ; Luo, Tao ; Qing, Chun ; Su, Changdong ; Huang, Chan ; Wu, Xiaoqing ; Li, Xuebin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c270t-21bfffba36dbb59d935e82ac3ac16b9688fc9f11a4b44a5bd5bf9a1870b18c433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Su</creatorcontrib><creatorcontrib>Yang, Qike</creatorcontrib><creatorcontrib>Xu, Jiangyue</creatorcontrib><creatorcontrib>Luo, Tao</creatorcontrib><creatorcontrib>Qing, Chun</creatorcontrib><creatorcontrib>Su, Changdong</creatorcontrib><creatorcontrib>Huang, Chan</creatorcontrib><creatorcontrib>Wu, Xiaoqing</creatorcontrib><creatorcontrib>Li, Xuebin</creatorcontrib><collection>CrossRef</collection><jtitle>Monthly notices of the Royal Astronomical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Wu, Su</au><au>Yang, Qike</au><au>Xu, Jiangyue</au><au>Luo, Tao</au><au>Qing, Chun</au><au>Su, Changdong</au><au>Huang, Chan</au><au>Wu, Xiaoqing</au><au>Li, Xuebin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A reliable model for estimating the turbulence intensity and integrated astroclimatic parameters from sounding data</atitle><jtitle>Monthly notices of the Royal Astronomical Society</jtitle><date>2021-06-01</date><risdate>2021</risdate><volume>503</volume><issue>4</issue><spage>5692</spage><epage>5703</epage><pages>5692-5703</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><abstract>ABSTRACT
The vertical distributions of atmospheric turbulence ($C_n^2$) are key factors in determining the performance of ground-based telescopes and interferometers. As site-testing campaigns are extremely expensive, atmospheric modelling may represent the estimated results of astronomical sites. We propose a new outer-scale model to estimate refractive index structure constant ($C_n^2$) profiles containing potential temperature and wind shear. The integrated astroclimatic parameters (Fried parameter r0, seeing ε, isoplanatic angle θ0, and coherence time τ0) can also be calculated using this outer-scale model. Radiosonde measurements from a filed campaign at Tibet (Lhasa) and Rongcheng (Shandong) are utilized to quantify the performance of this model. Compared with the Dewan model, HMNSP99 model and Thorpe model, the new model gives better results as a profile and an astroclimatic parameter estimator. Compared with the measured median profile, the correlation coefficient reaches 0.88 in Lhasa and 0.87 in Rongcheng.</abstract><pub>Oxford University Press</pub><doi>10.1093/mnras/stab515</doi><tpages>12</tpages></addata></record> |
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title | A reliable model for estimating the turbulence intensity and integrated astroclimatic parameters from sounding data |
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