Verification of satellite ozonetemperature profile products and ozone effective heighttemperature over Kunming, China
Verification of satellite ozonetemperature profile products and ozone effective heighttemperature over Kunming, China
复制标题
卫星臭氧温度廓线产品及昆明上空臭氧有效高度温度验证
DOI：
10.1016/j.scitotenv.2019.01.145
复制
发表时间：
2019
影响因子：
9.8
通讯作者：
Weiguo Wang
中科院分区：
文献类型：
--
作者：
HaoyueWang;Suying Chai;Xiao Tang;Bin Zhou;Jianchun Bian;Holger Vömel;Ke Yu;Weiguo Wang
使用2013年11月至2015年4月中国昆明上空的臭氧探空仪数据验证两个星载仪器的臭氧和温度廓线反演，这两个仪器是NASA Aura卫星上微波临边探测器（MLS）的4.2版产品和NASA Aqua卫星上大气红外探测器（AIRS）的6.0版产品。利用各种剖面数据集，计算并比较了地基臭氧总量反演中的两个重要参数臭氧有效高度Heff和有效温度Teff。这是用来验证世界气象组织的操作值（Heff（0）= 23 km，Teff（0）= −46.3 °C（或−45 °C））的准确性。结果表明，MLS和AIRS臭氧廓线与臭氧探空资料的偏差在对流层上部和平流层下部存在明显的振荡和离散现象。82.5 hPa MLS的平均差值为（80.5 ± 65.1）%，70和100 hPa AIRS的平均差值分别为（105.6 ± 74.9）%和（107.0 ± 67.8）%。两颗卫星的温度廓线相差在±3 °C以内，能够有效地描述温度的垂直分布和变化。在计算Heff和Teff时，探空资料中缺少的平流层上部资料必须用卫星剖面资料来填补，否则计算结果将出现3.2km和3.3 °C的较大误差。Heffat和Teffat昆明分别为24.36至25.51 km和−48.3至−43.6 °C。昆明臭氧观测站的业务HeffandTeffused明显不符合实际情况，必须加以纠正。
Ozonesonde data from November 2013 to April 2015 over Kunming, China are used to verify ozone and temperature profile retrievals from two spaceborne instruments, the version 4.2 product from the Microwave Limb Sounder (MLS) on the NASA Aura satellite and the version 6.0 product from the Atmospheric Infrared Sounder (AIRS) on the NASA Aqua satellite. We calculated and compared the ozone effective heightHeffand effective temperatureTeff, which are two important parameters in ground-based total ozone retrieval through the use of various profile datasets. This is used to verify the accuracy of the operative values (Heff(0)= 23 km,Teff(0)= −46.3 °C (or −45 °C)) from the World Meteorological Organization. The results show that the deviation of MLS and AIRS ozone profiles from ozone sounding data has significant oscillation and scatter in the upper troposphere and lower stratosphere. The average difference of MLS at 82.5 hPa is (80.5 ± 65.1) %, and that of AIRS at 70 and 100 hPa are (105.6 ± 74.9) % and (107.0 ± 67.8) %, respectively. The two satellite temperature profiles have differences within ±3 °C and can effectively describe the vertical distribution and variation of temperature. When calculating theHeffandTeff, upper stratospheric data missing from the sounding data must be filled in by the satellite profile data; otherwise the calculated results will show large errors of 3.2 km and 3.3 °C. TheHeffandTeffat Kunming are respectively 24.36 to 25.51 km and −48.3 to −43.6 °C. The operationalHeffandTeffused at Kunming ozone observation station clearly do not conform to the actual situation and must be corrected.