火星热层中重力波Potential Energy的初步估计：使用MAVEN NGIMS数据的分析
First estimations of Gravity Wave Potential Energy in the Martian thermosphere: An analysis using MAVEN NGIMS data
摘要：
本文报道了利用第33火星年不同季节的CO2密度温度起伏高度廓线对火星热层重力波势能（GWPE）的首次估算。明确的日变化的GWPE（为52 o至73 o纬度箱）与日落后的最大值描绘了夏季。夏季GWPE值在上午高于午夜后（35 ° ~ 55 °纬度）。随着纬度从16 °增加到45 °，夏季GWPE（1-4 LT仓）增加近一倍。此外，秋季的GWPE估计值在夜间比白天高6倍（-45 o至-72 o纬度箱），白天（-53 o至-72 o纬度箱）GWPE在秋季比春季低得多。总的来说，从现有的数据来看，秋季（相对于北半球）白天似乎更适合火星着陆任务的空气制动操作。
英文摘要：
First estimations of Gravity Wave Potential Energy (GWPE) for the Martian thermosphere are reported herein using the height profile of CO2 density derived temperature fluctuations for different Martian seasons during the 33rd Martian year. Explicit diurnal evolution of GWPE (for 52o to 73o latitude bin) with a post sunset maximum is delineated for summer. The higher values of GWPE are observed during morning, compared to post mid-night (35 o to 55 o latitude bin) for summer. As the latitude increases from 16 o to 45 o, GWPE (1-4 LT bin) is found to be nearly doubled for summer. Further, GWPE estimates in autumn are 6 times higher during night compared to day (-45 o to -72 o latitude bin) and daytime ( -53 o to -72 o latitude bin) GWPE is much lower in autumn compared to spring for all longitudes. Overall, from the available data autumn (with respect to northern hemisphere) daytime periods appear better suited for aero-braking operations of Martian landing missions.
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