Tropospheric ozone derived from TOMS/SBUV measurements during TRACE A
Tropospheric ozone derived from TOMS/SBUV measurements during TRACE A
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TRACE A 期间 TOMS/SBUV 测量得出的对流层臭氧
DOI：
10.1029/95jd03576
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
W. Grant
中科院分区：
文献类型：
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作者：
J. Fishman;V. Brackett;E. Browell;W. Grant
介绍了利用臭氧总量测绘光谱仪和太阳后向散射紫外线测量数据绘制赤道-大西洋附近运输和大气化学期间对流层臭氧量每日地图的情况。通过将这些地图与NASA DC-8上传感器的臭氧测量结果进行比较，我们发现卫星测量结果与其他数据之间的一致性通常非常好。TOMS/SBUV技术成功地捕获了大尺度梯度，并且导出的对流层臭氧总量一般在观测量的10-15%范围内。当存在大量低对流层（1-6公里）气溶胶（来自大规模生物质燃烧）时，两组数据之间的差异最大。1992年9月至10月期间在TRACE A区域发现的臭氧量与以前使用TOMS和平流层气溶胶和气体实验测量结果以及作为TRACE A一部分建立的几个热带站点的臭氧探测仪测量结果公布的气候值完全一致。在TRACE A期间观测到的卫星得出的臭氧最大值位于先前公布的气候数据以北1000公里处，这种向北移动是否是由于正常的年际变化，或者是否是SAGE和SBUV数据集之间系统数据处理差异的结果，目前尚不清楚。
The use of data from Total Ozone Mapping Spectrometer (TOMS) and Solar Backscatter Ultraviolet (SBUV) measurements to develop daily maps of the amount of ozone in the troposphere during Transport and Atmospheric chemistry Near the Equator-Atlantic (TRACE A) is presented. By comparing these maps with available ozone measurements from sensors aboard the NASA DC-8, we show that the agreement between the satellite-derived measurements and the other data is generally very good. The TOMS/SBUV technique successfully captures large-scale gradients and the derived integrated tropospheric ozone amount is generally within 10–15% of the observed amounts. The largest discrepancy between the two data sets occurs when copious amounts of lower-tropospheric (1–6 km) aerosols (from intense widespread biomass burning) are present. The amount of ozone found over the TRACE A region for the September–October 1992 period agrees well with the climatological values published previously using TOMS and Stratospheric Aerosol and Gas Experiment (SAGE) measurements and with ozonesonde measurements from several tropical sites established as part of TRACE A. The satellite-derived ozone maximum observed during TRACE A is ∼1000 km north of the previously published climatological data and it is not obvious whether or not this northward shift is due to normal interannual variability, or if it is a result of systematic data processing differences between the SAGE and the SBUV data sets.