Solar occultation satellite data and derived meteorological products: Sampling issues and comparisons with Aura Microwave Limb Sounder
Solar occultation satellite data and derived meteorological products: Sampling issues and comparisons with Aura Microwave Limb Sounder
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太阳掩星卫星数据和衍生气象产品：采样问题以及与 Aura 微波临边探测器的比较
DOI：
10.1029/2007jd008709
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发表时间：
2007
影响因子：
--
通讯作者：
J. Waters
中科院分区：
文献类型：
--
作者：
G. Manney;W. Daffer;J. Zawodny;P. Bernath;K. Hoppel;K. Walker;B. Knosp;C. Boone;E. Remsberg;M. Santee;V. Harvey;S. Pawson;D. Jackson;L. Deaver;C. T. McElroy;C. McLinden;J. Drummond;H. Pumphrey;A. Lambert;M. Schwartz;L. Froidevaux;S. McLeod;L. Takacs;Max J. Suarez;C. Trepte;D. Cuddy;N. Livesey;R. Harwood;J. Waters
[1] 针对多个太阳掩星仪器和 Aura 微波临边探测器 (MLS) 进行测量的位置和时间，根据多项气象分析生成了衍生气象产品（DMP，包括位温、位涡 (PV)、等效纬度 (EqL)、水平风和对流层顶位置）。使用 DMP 分析 MLS 和太阳掩星数据，以说明可能影响不同采样模式数据集解释和比较的采样问题，并就使用 DMP 分析与气象条件相关的卫星数据最受益的研究类型提供指导。使用 EqL 或 PV 作为以涡旋为中心的坐标并不能缓解所有采样问题，包括使用太阳掩星数据的“涡旋平均值”的研究以及对局部特征（例如极地平流层云）和与 PV 相关性不好的其他场的分析中的问题。使用 DMP 查看其气团特征的测量结果对于研究长寿命痕量气体的传输、冬季平流层下层的极地过程以及 O3 和其他痕量气体从对流层上层到平流层下层的分布和传输特别有价值。此处显示的比较表明 O3、N2O、H2O、HNO3 和 HCl 的 MLS 与日掩星数据之间具有良好的一致性；小偏差可归因于抽样效应或与本特殊部分其他部分中介绍的详细验证结果一致。 DMP 对于许多科学研究和促进非重合测量的验证都很有价值。
[1] Derived Meteorological Products (DMPs, including potential temperature, potential vorticity (PV), equivalent latitude (EqL), horizontal winds and tropopause locations) from several meteorological analyses have been produced for the locations and times of measurements taken by several solar occultation instruments and the Aura Microwave Limb Sounder (MLS). MLS and solar occultation data are analyzed using DMPs to illustrate sampling issues that may affect interpretation and comparison of data sets with diverse sampling patterns and to provide guidance regarding the kinds of studies that benefit most from analyzing satellite data in relation to meteorological conditions using the DMPs. Using EqL or PV as a vortex-centered coordinate does not alleviate all sampling problems, including those in studies using “vortex averages” of solar occultation data and in analyses of localized features (such as polar stratospheric clouds) and other fields that do not correlate well with PV. Using DMPs to view measurements with respect to their air mass characteristics is particularly valuable in studies of transport of long-lived trace gases, polar processing in the winter lower stratosphere, and distributions and transport of O3 and other trace gases from the upper troposphere through the lower stratosphere. The comparisons shown here demonstrate good agreement between MLS and solar occultation data for O3, N2O, H2O, HNO3, and HCl; small biases are attributable to sampling effects or are consistent with detailed validation results presented elsewhere in this special section. The DMPs are valuable for many scientific studies and to facilitate validation of noncoincident measurements.