无云情况下L波段微波辐射计快速大气校正方法

杜延磊; 马文韬; 杨晓峰; 刘桂红; 于暘; 李紫薇

doi:10.7498/aps.64.079501

摘要

利用数值天气预报模式输出的大气温湿廓线数据与大气辐射传输模型计算了无云情况下全球海面大气在L波段的上行、下行辐射亮温及透射率, 建立三个参数与大气水汽含量及海表气压的回归关系模型——辐射-水汽模型, 利用该模型可快速计算大气辐射参数, 对L波段微波辐射计进行大气校正. 为了验证模型的实用性和可靠性, 利用SSM/I卫星水汽含量数据和数值模式地表气压数据通过模型计算大气辐射参数, 并与Aquarius卫星实测L波段微波辐射数据进行对比分析. 结果表明: 模型计算的辐射亮温比卫星观测数据偏低约0.335 K, 但改正系统性偏差后的均方根误差仅0.086 K, 且模型计算的大气透射率与卫星观测数据基本一致, 说明利用该模型对L波段微波辐射计进行大气校正具有较高的可靠性, 相比于传统利用大气辐射传输模型进行大气校正, 该模型更为简单快速, 输入参数更易获取, 更适于工程应用.

关键词:

Abstract

Atmospheric correction is very important to the accurate retrieval of geophysical parameters from spaceborne L-band radiometers. In this paper, the L-band upwelling and downwelling radiation brightness temperature and transmittance above sea surface are calculated using the atmospheric radiation transfer model based on NCEP temperature and humidity profile data. A regression model, i.e., radiation-vapor model, is established to describe the relationship between the three atmospheric radiation parameters and the atmospheric water vapor content as well as the sea surface pressure. Using this model, the atmospheric radiation parameters can be calculated and used to correct the atmospheric effects in L-band microwave radiometer observation. In order to test the proposed model, the atmospheric radiation parameters are calculated by this model and compared with the SSM/I water vapor content data and the NCEP surface pressure data. Finally, the model outputs are compared with the Aquarius satellite data. Results indicate that the radiation brightness temperature calculated by the proposed model is lower than the Aquarius data about 0.335 K and the root-mean-square error between them is about 0.086 K after correcting the systematic errors. The atmospheric transmittance calculated by the proposed model agrees well with the Aquarius data. Besides, the proposed model uses fewer input data and is faster and more stable than other existing models.

Keywords:

作者及机构信息

1.
中国科学院遥感与数字地球研究所遥感科学国家重点实验室, 北京 100101;

2.
中国科学院大学, 北京 100049

基金项目: 国家自然科学基金(批准号: 41371355)资助的课题.

Authors and contacts

1.
State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences Beijing 100101, China;

2.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 41371355).

参考文献

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[2]	Yueh S H, West R, Wilson W J, Li F K, Njoku E G, Rahmat-Samii Y 2001 IEEE Trans. Geosci. Remote Sensing 39 1049
[3]	Skou N, Hoffman-Bang D 2005 IEEE Trans. Geosci. Remote Sensing 43 2210
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[5]	Wentz F J, Spencer R W 1998 J. Atmos. Sci. 55 1613
[6]	Meissner T, Wentz F J 2009 IEEE Trans. Geosci. Remote Sensing 47 3065
[7]	Hariharan T A, Pandey P C 1983 Proc. Indian Acad. Sci. 6 233
[8]	Liebe H J 1989 Int. J. Infrared and Millimeter Waves 10 631
[9]	Liebe H J, Hufford G A, Cotton M G 1993 AGARD 52nd Specialists Meeting of the Electromagnetic Wave Propagation Panel Palma De Mallorca, Spain, May 17-21 1993 p3.1
[10]	Rosenkranz P W 1998 Radio sci. 33 919
[11]	Liebe H J 1985 Radio Sci. 20 1069
[12]	Liebe H J, Rosenkranz P W, Hufford G A 1992 J. Quant. Spectrosc. Radiat. Transfer 48 629
[13]	Fuhrhop R, Grenfell T C, Heygster G, Johnsen K P, Schlssel P, Schrader M, Simmer C 1998 Radio Sci. 33 303
[14]	Wang Y Q, Shi J C, Liu Z H, Peng Y J, Liu W J 2013 itScience China Earth Sciences 56 93
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[16]	Shi J K, Lu W, Yan W, Ai W H 2013 Acta Phys. Sin. 62 078402 (in Chinese) [施健康, 陆文, 严卫, 艾未华 2013 62 078402]
[17]	Zhou X, Yang X F, Li Z W, Yu Y, Ma S 2012 Acta Phys. Sin. 61 149202 (in Chinese) [周旋, 杨晓峰, 李紫薇, 于暘, 马胜 2012 61 149202]
[18]	Yan W, Lu W, Shi J K, Ren J Q, Wang R 2011 Acta Phys. Sin. 60 099401 (in Chinese) [严卫, 陆文, 施健康, 任建奇, 王蕊 2011 60 099401]
[19]	Zu X Y, Zhou J 2012 Chin. Phys. B 21 019501
[20]	Liu Y, Peng Q Z, Shao H Z, Peng Q H, Wang L 2013 Acta Phys. Sin. 62 078406 (in Chinese) [刘允, 彭启琮, 邵怀宗, 彭启航, 王玲 2013 62 078406]
[21]	Stewart R H 1985 Methods of Satellite Oceanography (Berkeley: University of California Press) p360
[22]	Liu Y G 2009 Satellite Oceanography (Beijing: Higher Education Press) pp201-221 (in Chinese) [刘玉光 2009 卫星海洋学(北京: 高等教育出版社) 第201–221页]
[23]	Wang Z Z 2005 Ph. D. Dissertation (Beijing: Center for Space Science and Applied Research, Chinese Academy of Sciences) (in Chinese) [王振占 2005 博士学位论文 (北京: 中国科学院空间科学与应用研究中心)]
[24]	Seelye M (translated by Jiang X W) 2008 An Introduction to Ocean Remote Sensing (Beijing: Ocean Press) pp86-99 (in Chinese) [西利 M著 (蒋兴伟译) 2008 海洋遥感导论 (北京: 海洋出版社) 第86–99页]
[25]	Yueh S H, Tang W Q, Fore A G, Neumann G, Hayashi A, Freedman A, Chaubell J, Lagerloef G S E 2013 IEEE Trans. Geosci. Remote Sensing 51 4619

施引文献

[1]	Bettenhausen M H, Smith C K, Bevilacqua R M, Wang N Y, Gaiser P W, Cox S K 2006 IEEE Trans. Geosci. Remote Sensing 44 597
[2]	Yueh S H, West R, Wilson W J, Li F K, Njoku E G, Rahmat-Samii Y 2001 IEEE Trans. Geosci. Remote Sensing 39 1049
[3]	Skou N, Hoffman-Bang D 2005 IEEE Trans. Geosci. Remote Sensing 43 2210
[4]	Camps A, Font J, Mercè V, Gabarro Ć, Corbella I, Duffo N, Torres F, Blanch S, Aguasca A, Villarino R, Enrique L, Miranda J J, Arenas J J, Julia à, Etcheto J, Caselles V, Weill A, Boutin J, Contardo S, Niclós R, Rivas R, Reising S C, Wursteisen P, Berger M, Martín-Neira M 2004 IEEE Trans. Geosci. Remote Sensing 42 804
[5]	Wentz F J, Spencer R W 1998 J. Atmos. Sci. 55 1613
[6]	Meissner T, Wentz F J 2009 IEEE Trans. Geosci. Remote Sensing 47 3065
[7]	Hariharan T A, Pandey P C 1983 Proc. Indian Acad. Sci. 6 233
[8]	Liebe H J 1989 Int. J. Infrared and Millimeter Waves 10 631
[9]	Liebe H J, Hufford G A, Cotton M G 1993 AGARD 52nd Specialists Meeting of the Electromagnetic Wave Propagation Panel Palma De Mallorca, Spain, May 17-21 1993 p3.1
[10]	Rosenkranz P W 1998 Radio sci. 33 919
[11]	Liebe H J 1985 Radio Sci. 20 1069
[12]	Liebe H J, Rosenkranz P W, Hufford G A 1992 J. Quant. Spectrosc. Radiat. Transfer 48 629
[13]	Fuhrhop R, Grenfell T C, Heygster G, Johnsen K P, Schlssel P, Schrader M, Simmer C 1998 Radio Sci. 33 303
[14]	Wang Y Q, Shi J C, Liu Z H, Peng Y J, Liu W J 2013 itScience China Earth Sciences 56 93
[15]	Wang Y Q, Feng W L, Shi J C, Qiu Y B, Liu Z H 2014 J. Infrared Millim. Waves 33 192 (in Chinese) [王永前, 冯文兰, 施建成, 邱玉宝, 刘志红 2014 红外与毫米波学报 33 192]
[16]	Shi J K, Lu W, Yan W, Ai W H 2013 Acta Phys. Sin. 62 078402 (in Chinese) [施健康, 陆文, 严卫, 艾未华 2013 62 078402]
[17]	Zhou X, Yang X F, Li Z W, Yu Y, Ma S 2012 Acta Phys. Sin. 61 149202 (in Chinese) [周旋, 杨晓峰, 李紫薇, 于暘, 马胜 2012 61 149202]
[18]	Yan W, Lu W, Shi J K, Ren J Q, Wang R 2011 Acta Phys. Sin. 60 099401 (in Chinese) [严卫, 陆文, 施健康, 任建奇, 王蕊 2011 60 099401]
[19]	Zu X Y, Zhou J 2012 Chin. Phys. B 21 019501
[20]	Liu Y, Peng Q Z, Shao H Z, Peng Q H, Wang L 2013 Acta Phys. Sin. 62 078406 (in Chinese) [刘允, 彭启琮, 邵怀宗, 彭启航, 王玲 2013 62 078406]
[21]	Stewart R H 1985 Methods of Satellite Oceanography (Berkeley: University of California Press) p360
[22]	Liu Y G 2009 Satellite Oceanography (Beijing: Higher Education Press) pp201-221 (in Chinese) [刘玉光 2009 卫星海洋学(北京: 高等教育出版社) 第201–221页]
[23]	Wang Z Z 2005 Ph. D. Dissertation (Beijing: Center for Space Science and Applied Research, Chinese Academy of Sciences) (in Chinese) [王振占 2005 博士学位论文 (北京: 中国科学院空间科学与应用研究中心)]
[24]	Seelye M (translated by Jiang X W) 2008 An Introduction to Ocean Remote Sensing (Beijing: Ocean Press) pp86-99 (in Chinese) [西利 M著 (蒋兴伟译) 2008 海洋遥感导论 (北京: 海洋出版社) 第86–99页]
[25]	Yueh S H, Tang W Q, Fore A G, Neumann G, Hayashi A, Freedman A, Chaubell J, Lagerloef G S E 2013 IEEE Trans. Geosci. Remote Sensing 51 4619

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