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We describe circular polarization as a remote sensing diagnostic of chiral signatures which may be applied to Mars. The remarkable phenomenon of homochirality provides a unique biosignature which can be amenable to remote sensing through…

Earth and Planetary Astrophysics · Physics 2015-06-11 William Sparks , James H. Hough , Thomas A. Germer , Frank Robb , Ludmilla Kolokolova

The Red Planet has fascinated humans for millennia, especially for the last few centuries, and particularly during the Space Age. The nagging suspicion of extant Martian life is both fed by, and drives the many space missions to Mars and…

Instrumentation and Methods for Astrophysics · Physics 2020-08-14 Robert Hunt

Dust is the main driver of Mars' atmospheric variability. The determination of Martian dust aerosol properties is of high relevance for radiative modelling and calculating its weather forcing. In particular, the light scattering behaviour…

Earth and Planetary Astrophysics · Physics 2019-05-06 H. Chen-Chen , S. Perez-Hoyos , A. Sanchez-Lavega

All LIDAR instruments are not the same, and advancement of LIDAR technology requires an ongoing interest and demand from the community to foster further development of the required components. The purpose of this paper is to make the…

$\text{CO}_{\text{2}}$ ice clouds are important for polar energy balance and the carbon dioxide cycle on Mars. However, uncertainties remain regarding their physical and radiative properties, which control how polar $\text{CO}_{\text{2}}$…

Earth and Planetary Astrophysics · Physics 2025-09-04 R. W. Stevens , P. O. Hayne , A. Kleinböhl , D. M. Kass

Exploration of Mars has been made possible using a series of landers, rovers and orbiters. The HiRise camera on the Mars Reconnaissance Orbiter (MRO) has captured high-resolution images covering large tracts of the surface. However, orbital…

Instrumentation and Methods for Astrophysics · Physics 2019-02-18 Adrien Bouskela , Aman Chandra , Jekan Thangavelautham , Sergey Shkarayev

The polarization state of starlight reflected by a planetary atmosphere uniquely reveals coverage, particle size, and composition of aerosols as well as changing cloud patterns. It is not possible to obtain a comparable level of detailed…

The SEIS (Seismic Experiment for Interior Structures) instrument onboard the InSight mission to Mars is the critical instrument for determining the interior structure of Mars, the current level of tectonic activity and the meteorite flux.…

A comprehensive study of Nitric oxide (NO) chemistry in the Martian upper atmosphere is restricted due to the lack of requisite measurements. NO is an abundant form of odd nitrogen species in the Martian lower atmosphere and its density…

Earth and Planetary Astrophysics · Physics 2022-04-27 Susarla Raghuram , Anil Bhardwaj , Maneesha Dharwan

The paper deals with the investigation of the Mars subsurface by means of data collected by the Mars Advanced Radar for Subsurface and Ionosphere Sounding working at few MHz frequencies. A data processing strategy, which combines a simple…

Earth and Planetary Astrophysics · Physics 2016-09-28 S. E. Lauro , G. Gennarelli , E. Pettinelli , F. Soldovieri , F. Cantini , A. P. Rossi , R. Orosei

Future telescopes will characterize rocky exoplanets in reflected light, revealing their albedo, which depends on surface, cloud, and atmospheric properties. Identifying these features is crucial for assessing habitability. We present…

Earth and Planetary Astrophysics · Physics 2025-04-09 Giulia Roccetti , Claudia Emde , Michael F. Sterzik , Mihail Manev , Julia V. Seidel , Stefano Bagnulo

Recent discoveries of anomalously bright radar reflections below the Mars South Polar Layered Deposit (SPLD) have sparked new speculation that liquid water may be present below the ice cap. The reflections, discovered in data acquired by…

Earth and Planetary Astrophysics · Physics 2021-07-09 Daniel E. Lalich , Alexander G. Hayes , Valerio Poggiali

Studying the atmospheric Planetary Boundary Layer (PBL) is crucial to understand the climate of a planet. The meteorological measurements by the instruments onboard InSight at a latitude of 4.5$^{\circ}$N make a uniquely rich dataset to…

We present a new implementation of the hydrological cycle scheme into a general circulation model of the Martian atmosphere. The model includes a semi-Lagrangian transport scheme for water vapor and ice, and accounts for microphysics of…

Earth and Planetary Astrophysics · Physics 2022-01-14 Dmitry S. Shaposhnikov , Alexander V. Rodin , Alexander S. Medvedev , Anna A. Fedorova , Takeshi Kurod , Paul Hartogh

Seasonal frosting and defrosting on the surface of Mars is hypothesized to drive both climate processes and the formation and evolution of geomorphological features such as gullies. Past studies have focused on manually analyzing the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Gary Doran , Serina Diniega , Steven Lu , Mark Wronkiewicz , Kiri L. Wagstaff

We discuss the DISORT-based radiative transfer pipeline ('CRISM_LambertAlb') for atmospheric and thermal correction of MRO/CRISM data acquired in multispectral mapping mode (~200 m/pixel, 72 spectral channels). Currently, in this phase-one…

Understanding the diurnal behavior of lee wave clouds on Mars provides critical insight into the planet's mesoscale atmospheric dynamics and their interaction with surface topography. Lee wave clouds exhibit distinct spatial and temporal…

Earth and Planetary Astrophysics · Physics 2025-11-03 Mariam R. Alshamsi , Mashhoor A. Al-Wardat

We measure the visible and near-infrared reflectance of icy analogues of the Martian surface made of CO$_2$ ice associated in different ways with H$_2$O ice and the regolith simulant JSC Mars-1. Such experimental results obtained with…

Earth and Planetary Astrophysics · Physics 2022-07-29 Zuriñe Yoldi , Antoine Pommerol , Olivier Poch , Nicolas Thomas

For the first time, the Emirates Mars Infrared Spectrometer (EMIRS) instrument on board the Emirates Mars Mission (EMM) "Hope", is providing us with the temperature measurements of Mars at all local times covering most of the planet. As a…

Earth and Planetary Astrophysics · Physics 2022-11-09 Dimitra Atri , Nour Abdelmoneim , Dattaraj B. Dhuri , Mathilde Simoni

We present an active method for robust exoatmospheric positioning using space-based intensity modulated direct detection (IMDD) LiDAR with a spacecraft-based transmitter and receiver and a constellation of orbital reflectors. We discuss the…

Instrumentation and Detectors · Physics 2025-02-04 L. M. Arthur , R. S. Kemp