Ozone profiles in the high‐latitude stratosphere and lower mesosphere measured by the Improved Limb Atmospheric Spectrometer (ILAS)‐II: Comparison with other satellite sensors and ozonesondes
Ozone profiles in the high‐latitude stratosphere and lower mesosphere measured by the Improved Limb Atmospheric Spectrometer (ILAS)‐II: Comparison with other satellite sensors and ozonesondes
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DOI：
10.1029/2005jd006439
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发表时间：
2006-06
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通讯作者：
T. Sugita;H. Nakajima;T. Yokota;H. Kanzawa;H. Gernandt;A. Herber;P. Gathen;G. König‐Langlo;Kaoru Sato;V. Dorokhov;V. Yushkov;Y. Murayama;Miho Yamamori;S. Godin‐Beekmann;F. Goutail;H. Roscoe;T. Deshler;M. Yela;P. Taalas;E. Kyrö;S. Oltmans;B. Johnson;M. Allaart;Z. Litynska;A. Klekociuk;S. Andersen;G. Braathen;H. Backer;C. Randall;R. Bevilacqua;G. Taha;L. Thomason;H. Irie;M. Ejiri;N. Saitoh;Tomoak Tanaka;Y. Terao;Hirokazu Kobayashi;Y. Sasano
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文献类型：
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作者：
T. Sugita;H. Nakajima;T. Yokota;H. Kanzawa;H. Gernandt;A. Herber;P. Gathen;G. König‐Langlo;Kaoru Sato;V. Dorokhov;V. Yushkov;Y. Murayama;Miho Yamamori;S. Godin‐Beekmann;F. Goutail;H. Roscoe;T. Deshler;M. Yela;P. Taalas;E. Kyrö;S. Oltmans;B. Johnson;M. Allaart;Z. Litynska;A. Klekociuk;S. Andersen;G. Braathen;H. Backer;C. Randall;R. Bevilacqua;G. Taha;L. Thomason;H. Irie;M. Ejiri;N. Saitoh;Tomoak Tanaka;Y. Terao;Hirokazu Kobayashi;Y. Sasano
2003年1月至10月，一个太阳掩星传感器-改进的临边大气分光仪-测量了平流层和中间层下部臭氧浓度以及其他物种的5，890个垂直剖面。测量纬度覆盖范围为54-71°N和64-88°S，与ILAS的覆盖范围（1996年11月至1997年6月）相似。ILAS-II测量的目的之一是继续对臭氧及其相关化学物质进行高纬度测量，以帮助准确确定其趋势。本文通过与综合臭氧探测仪测量结果和四个星载太阳掩星传感器的结果进行比较，评估了1.4版反演算法中臭氧数据的质量。在北方半球，ILAS-II的臭氧数据与其他数据在11至40公里高度上的一致性在±10%之内（用绝对差除以平均值），在对可能的可疑反演进行筛选后，ILAS-II的平均重合廓线在20公里以下系统地高出10%，在21至40公里之间低出10%。在41公里以上，NH-ILAS-II臭氧数据与其他数据之间的负偏差随着高度的增加而增加，在61-65公里处达到30%。在南半球，ILAS-II的臭氧数据与其他数据在11-60 km高度范围内的一致性在±10%之内，平均一致廓线在20 km以下高出10%，在20 km以上低出10%。考虑到本比较研究中使用的其他数据的准确性，1.4版臭氧数据适合用于北方和南半球高纬度平流层以及南半球中间层下部的定量分析。
A solar occultation sensor, the Improved Limb Atmospheric Spectrometer (ILAS)-II, measured 5890 vertical profiles of ozone concentrations in the stratosphere and lower mesosphere and of other species from January to October 2003. The measurement latitude coverage was 54–71°N and 64–88°S, which is similar to the coverage of ILAS (November 1996 to June 1997). One purpose of the ILAS-II measurements was to continue such high-latitude measurements of ozone and its related chemical species in order to help accurately determine their trends. The present paper assesses the quality of ozone data in the version 1.4 retrieval algorithm, through comparisons with results obtained from comprehensive ozonesonde measurements and four satellite-borne solar occultation sensors. In the Northern Hemisphere (NH), the ILAS-II ozone data agree with the other data within ±10% (in terms of the absolute difference divided by its mean value) at altitudes between 11 and 40 km, with the median coincident ILAS-II profiles being systematically up to 10% higher below 20 km and up to 10% lower between 21 and 40 km after screening possible suspicious retrievals. Above 41 km, the negative bias between the NH ILAS-II ozone data and the other data increases with increasing altitude and reaches 30% at 61–65 km. In the Southern Hemisphere, the ILAS-II ozone data agree with the other data within ±10% in the altitude range of 11–60 km, with the median coincident profiles being on average up to 10% higher below 20 km and up to 10% lower above 20 km. Considering the accuracy of the other data used for this comparative study, the version 1.4 ozone data are suitably used for quantitative analyses in the high-latitude stratosphere in both the Northern and Southern Hemisphere and in the lower mesosphere in the Southern Hemisphere.