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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Thermal Emission Spectrometer results: Mars atmospheric thermal structure and aerosol distribution
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Thermal Emission Spectrometer results: Mars atmospheric thermal structure and aerosol distribution

机译：热发射光谱仪结果：火星大气热结构和气溶胶分布

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摘要

Infrared spectra returned by the Thermal Emission Spectrometer (TES) are well suited for retrieval of the thermal structure and the distribution of aerosols in the Martian atmosphere. Combined nadir- and limb-viewing spectra allow global monitoring of the atmosphere up to 0.01 mbar (65 km). We, report here on the atmospheric thermal structure and the distribution of aerosols as observed thus far during the mapping phase of the Mars Global Surveyor mission. Zonal and temporal mean cross sections are used to examine the seasonal evolution of atmospheric temperatures and zonal winds during a period extending from northern hemisphere midsummer through vernal equinox (L-S = 104 degrees -360 degrees). Temperature maps at selected pressure levels provide a characterization of planetary-scale waves. Retrieved atmospheric infrared dust opacity maps show the formation and evolution of regional dust storms during southern hemisphere summer. Response of the atmospheric thermal structure to the changing dust loading is observed. Maps of water-ice clouds as viewed in the thermal infrared are presented along with seasonal trends of infrared water-ice opacity. Uses of these observations for diagnostic studies of the dynamics of the atmosphere are discussed. [References: 29]
机译：由热发射光谱仪（TES）返回的红外光谱非常适合检索火星大气中的热结构和气溶胶分布。天底和肢体观察光谱相结合，可以对高达0.01 mbar（65 km）的大气进行全局监视。我们在此报告迄今为止在火星全球测量师任务的制图阶段观测到的大气热结构和气溶胶分布。地带和时间平均横截面用于检查从北半球仲夏到春分（L-S = 104度-360度）的一段时间内大气温度和纬向风的季节演变。选定压力水平下的温度图可表征行星尺度的波。检索到的大气红外尘埃不透明度图显示了南半球夏季区域性沙尘暴的形成和演变。观察到大气热结构对粉尘负荷变化的响应。呈现了在热红外中观察到的水冰云图以及红外水冰不透明度的季节性趋势。讨论了将这些观测结果用于大气动力学诊断研究。 [参考：29]

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