Thermal Structure of the Middle and Upper Atmosphere of Mars from ACS/TGO CO2 Spectroscopy

This data set represents results from the middle infrared spectrometer of the Atmospheric Chemistry Suite (ACS MIR) operating on board ExoMars Trace Gas Orbiter in regime of solar occultation. The instrument measures altitude profiles of CO2 density and temperature in the atmosphere of Mars. Here we present the profiles measured during 1.5 Martian Years (MY), from the middle of MY 34 to the end of MY 35. This period correspond to ACS MIR observations from May 2018 to January 2021. The selected dataset comprises 306 occultation sessions in the Northern Hemisphere and 299 sessions in the Southern Hemisphere, encompassing seasonal periods of Solar longitude Ls=180°-355° in MY34 and Ls=0°-356° in MY35. The current Version 1 is a preliminary data storage while the related paper is being under review. Related paper: Belyaev, D. A., et al. (2022). Thermal Structure of the Middle and Upper Atmosphere of Mars from ACS/TGO CO2 Spectroscopy. Open access at ESSOAr: doi:10.1002/essoar.10510820.2 For any detail or question mail to: [e-mail] (Dr. Denis Belyaev)

本数据集为搭载于ExoMars痕量气体轨道器（ExoMars Trace Gas Orbiter）的大气化学套件（Atmospheric Chemistry Suite, ACS）中红外光谱仪（ACS MIR）在太阳掩星观测模式下获取的探测结果。该仪器可获取火星大气中二氧化碳（CO₂）密度与温度的高度廓线。本数据集涵盖第34个火星年（Martian Year, MY）中期至第35个火星年末期共计1.5个火星年的观测廓线，对应观测时段为2018年5月至2021年1月。本次选用的数据集包含北半球306次、南半球299次掩星观测事件，覆盖第34个火星年太阳经度（Solar longitude, Ls）=180°~355°及第35个火星年Ls=0°~356°的季节时段。当前发布的V1版本为预发布数据存储，相关研究论文目前处于审稿阶段。相关研究论文：Belyaev, D. A.等（2022），《基于ACS/TGO二氧化碳光谱法的火星中高层大气热结构》，可在ESSOAr平台开放获取：doi:10.1002/essoar.10510820.2。如需获取更多细节或咨询问题，请致信：[e-mail]（Denis Belyaev博士）