Abstract
Temperature profiles retrieved using the first set of data of the Emirates Mars InfraRed Spectrometer obtained during the science phase of the Emirates Mars Mission are used for the analysis of migrating thermal tides in the Martian atmosphere. The selected data cover a solar longitude (LS) range of 60°–90° of Martian Year 36. The novel orbit design of the Hope Probe leads to a good geographic and local time coverage that significantly improves the analysis. Wave mode decomposition suggests dominant diurnal tide and important semi-diurnal tide with maximal amplitudes of 6 and 2 K, respectively, as well as the existence of ∼0.5 K ter-diurnal tide. The results agree well with predictions by the Mars Planetary Climate Model, but the observed diurnal tide has an earlier phase (3 hr), and the semi-diurnal tide has an unexpectedly large wavelength (∼200 km).
| Original language | English |
|---|---|
| Article number | e2022GL099494 |
| Number of pages | 9 |
| Journal | Geophysical Research Letters |
| Volume | 49 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 28 Sept 2022 |
Bibliographical note
Funding Information:Funding for development of the EMM mission was provided by the United Arab Emirates (UAE) government, and to co‐authors outside of the UAE by the Mohammed bin Rashid Space Centre (MBRSC). RMBY acknowledges funding from UAE University grants G00003322 and G00003407.
Data Availability Statement
Data from the Emirates Mars Mission (EMM) are freely and publicly available on the EMM Science Data Center (SDC, http://sdc.emiratesmarsmission.ae). This location is designated as the primary repository for all data products produced by the EMM team and is designated as long-term repository as required by the UAE Space Agency. The data available (http://sdc.emiratesmarsmission.ae/data) include ancillary spacecraft data, instrument telemetry, Level 1 (raw instrument data) to Level 3 (derived science products), quicklook products, and data users guides (https://sdc.emiratesmarsmission.ae/documentation) to assist in the analysis of the data. Following the creation of a free login, all EMM data are searchable via parameters such as product file name, solar longitude, acquisition time, sub-spacecraft latitude & longitude, instrument, data product level, and etc. Emirates Mars Infrared Spectrometer (EMIRS) data and users guides are available at: https://sdc.emiratesmarsmission.ae/data/emirs. Data products can be browsed within the SDC via a standardized file system structure that follows the convention: /emm/data/<Instrument>/<DataLevel>/<Mode>/<Year>/<Month> Data product filenames follow a standard convention: emm_<Instrument>_<DataLevel><StartTimeUTC>_<OrbitNumber>_<Mode>_<Description>_<KernelLevel>_<Version>.<FileType>.The Mars PCM output during LS = 0°–90° of MY 36 is available on the IPSL data server with https://doi.org/10.14768/d49ef040-476c-4264-bf67-6b4b018b8620. Permission is granted to use these datasets in research and publications with appropriate acknowledgements that are presented on the data set websites.
Keywords
- Atmospheric wave
- Emirates Mars Infrared Spectrometer
- Emirates Mars Mission
- Martian atmosphere
- Thermal tide
Access to Document
- Fan_etal_GRL_Migrating_Thermal_Tides_VOR
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