Surface pressure measurements on Mars have revealed a wide variety of atmospheric phenomena. The Mars Science Laboratory Rover Environmental Monitoring Station pressure sensor data set is now the longest duration record of surface pressure on Mars. We use the first 2580 Martian sols, nearly 4 Mars years, of measurements to identify atmospheric pressure waves with periods of tens of minutes to hours using wavelet analysis on residual pressure after the tidal harmonics are removed. We find these waves have a clear diurnal cycle with strongest activity in the early morning and late evening and a seasonal cycle with the strongest waves in the second half of the martian year (L_s = 180–360°). The strongest such waves of the entire mission occurred during the Mars Year 34 global dust storm. Comparable atmospheric waves are identified using atmospheric modeling with the MarsWRF general circulation model in a “nested” high spatial resolution mode. With the support of the modeling, we find these waves best fit the expected properties of inertia-gravity waves with horizontal wavelengths of O(100s) of km.

中文翻译：

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火星科学实验室 REMS 压力传感器的重力波观测以及与 MarsWRF 中尺度大气建模的比较

火星表面压力测量揭示了各种各样的大气现象。火星科学实验室漫游者环境监测站压力传感器数据集现在是火星表面压力持续时间最长的记录。我们使用最初的 2580 个火星溶胶，即近 4 个火星年的测量值，使用去除潮汐谐波后残余压力的小波分析来识别周期为几十分钟到几小时的大气压力波。我们发现这些波具有明显的昼夜循环，在清晨和傍晚活动最强，季节性循环在火星年的下半年（L _s = 180–360°）。整个任务中最强的此类波发生在火星第 34 年全球沙尘暴期间。在“嵌套”高空间分辨率模式下，使用大气建模和 MarsWRF 环流模型识别可比的大气波。在建模的支持下，我们发现这些波最符合水平波长为 O(100s) km 的惯性重力波的预期特性。