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Temperature profiles retrieved using the first set of data of the Emirates Mars InfraRed Spectrometer (EMIRS) obtained during the science phase of the Emirates Mars Mission (EMM) are used for the analysis of migrating thermal tides in the…

Mars Exospheric Neutral Composition Analyzer (MENCA) of Mars Orbiter Mission (MOM) measures the \emph{in-situ} neutral upper atmospheric constituents of Mars. Martian lower atmosphere predominated by the presence of $CO_2$ which…

The dynamics of the upper mesosphere of Venus (~85-115 km) have been characterized as a combination of a retrograde superrotating zonal wind (RSZ) with a subsolar-to-antisolar flow (SSAS). Numerous mm-wave single-dish observations have been…

Earth and Planetary Astrophysics · Physics 2015-06-04 A. Moullet , E. Lellouch , R. Moreno , M. Gurwell , H. Sagawa

Since the 1950s, quasi-periodic oscillations have been studied in the terrestrial equatorial stratosphere. Other planets of the solar system present (or are expected to present) such oscillations, like the Jupiter Equatorial…

Earth and Planetary Astrophysics · Physics 2021-08-25 B. Benmahi , T. Cavalié , T. K. Greathouse , V. Hue , R. Giles , S. Guerlet , A. Spiga , R. Cosentino

Mars' thin, CO$_2$-rich atmosphere poses a unique puzzle involving composition, climate history, and habitability. This work explores the intrincate relationship between Mars' atmospheric variations and dynamic solar activity patterns. We…

Earth and Planetary Astrophysics · Physics 2023-09-12 Johan Nicolás Molina Córdoba , S. Vargas Domínguez , J. I. Zuluaga

The martian atmosphere hosts dynamical phenomena ranging from planet-encircling dust storms to mesoscale orographic clouds and nocturnal low-level jets. General circulation model show capability to simulate these phenomena, but is…

We carried out wind tunnel experiments on parabolic flights with 100 $\mu$m Mojave Mars simulant sand. The experiments result in shear stress thresholds and erosion rates for varying g-levels at 600 Pa pressure. Our data confirm former…

Earth and Planetary Astrophysics · Physics 2019-11-06 Maximilian Kruss , Grzegorz Musiolik , Tunahan Demirci , Gerhard Wurm , Jens Teiser

The southern hemisphere of Mars possesses concentrated region of strong crustal magnetic fields (CMF), which generate localized magnetic anomalies that can influence atmospheric dynamics and energy deposition in the Martian…

Space Physics · Physics 2025-05-21 Aadarsh Raj Sharma , Lot Ram , Sumanta Sarkhel

Near-surface wind fields on Mars are profoundly modulated by complex topography, yet fine-scale wind field characteristics remain poorly resolved for key geomorphological units such as deltas, valleys, and impact craters, due to the spatial…

Geophysics · Physics 2026-04-03 Yuhang Liu , Lei Zhang , Zhihao Shen , Peng Cao , Zhao Jiang , Jing Li , Jinhai Zhang

We investigate the global seasonal variations of near-surface relative humidity and relevant attributes, like temperature and water vapor volume mixing ratio on Mars using calculations from modelled and measurement data. We focus on 2 am…

Earth and Planetary Astrophysics · Physics 2019-07-24 B. Pál , Á. Kereszturi , F. Forget , M. D. Smith

Mars Global Surveyor measurements revealed that the Martian crust is strongly magnetized in the southern hemisphere while the northern hemisphere is virtually void of magnetization. Two possible reasons have been suggested for this…

Earth and Planetary Astrophysics · Physics 2014-02-04 Wieland Dietrich , Johannes Wicht

Global and mesoscale models represent the background (slowly varying) winds on Mars, but short timescale wind variability is not explicitly represented. The local wind erosion and dust deposition model can be useful for more accurate local…

Earth and Planetary Astrophysics · Physics 2020-08-06 N. Deniskina

We report the ubiquitous occurrence of nighttime temperature inversions in the tropical martian atmosphere during the dusty season, as observed by the Mars Climate Sounder. The inversions are linked to the occurrence of large-scale regional…

Earth and Planetary Astrophysics · Physics 2021-06-02 Liam Steele , Armin Kleinboehl , David Kass

The springtime sublimation process of Mars' southern seasonal polar CO$_2$ ice cap features dark fan-shaped deposits appearing on the top of the thawing ice sheet. The fan material likely originates from the surface below the ice sheet,…

When the solar wind interacts with the ionosphere of an unmagnetized planet, it induces currents that form an induced magnetosphere. These currents and their associated magnetic fields play a pivotal role in controlling the movement of…

We present a study on the properties of electromagnetic plasma waves in the region upstream of the Martian bow shock, detected by the magnetometer and electron reflectometer (MAG / ER) onboard the Mars Global Surveyor (MGS) spacecraft…

Earth and Planetary Astrophysics · Physics 2015-06-15 Norberto Romanelli , Cesar Bertucci , Daniel Gomez , Christian Mazelle , Magda Delva

Post-Noachian Martian paleochannels indicate the existence of liquid water on the surface of Mars after about 3.5 Gya (Irwin et al., 2015; Palucis et al., 2016). In order to explore the effects of variations in CO$_{2}$ partial pressure and…

Earth and Planetary Astrophysics · Physics 2018-03-01 Megan Mansfield , Edwin S. Kite , Michael A. Mischna

The Southern Oscillation (ENSO) is modelled with the help of a simple model representing a classical damped oscillator forced by external forcing. Eastern Pacific sea surface temperature (SST) and the mean equatorial Pacific thermocline…

Atmospheric and Oceanic Physics · Physics 2007-05-23 Vladimir N. Stepanov

A new physical hypothesis predicts that a weak coupling of the orbital and rotational motions of extended bodies may give rise to a modulation of circulatory flows within their atmospheres. Driven cycles of intensification and relaxation of…

Atmospheric and Oceanic Physics · Physics 2017-04-05 James H. Shirley , Michael A. Mischna

This paper proposes a joint analysis of variations of global sea-level pressure and of Earth's rotation (RP), expressed as the coordinates of the rotation pole and length of day. Sea-Level-Pressure (SLP) extracted components are a weak…

Geophysics · Physics 2023-01-20 V. Courtillot , J-L. Le Mouël , F. Lopes , D. Gibert