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View article: HARPOON mission concept: Hydration And Regolith Penetration Observatory On Mars
HARPOON mission concept: Hydration And Regolith Penetration Observatory On Mars Open
Understanding the present-day behaviour of water on Mars —including its exchange between the atmosphere and subsurface, potential for transient liquid phases, and stability of shallow ice deposits— remains a central question in planetary s…
View article: Microphysical Modeling of Hydrogen Sulfide Clouds in the Atmospheres of the Ice Giants
Microphysical Modeling of Hydrogen Sulfide Clouds in the Atmospheres of the Ice Giants Open
Radiative transfer analyses of spectra obtained from Uranus and Neptune have revealed the presence ofa cloud layer at pressures greater than ~2 bar (1,2). The detection of hydrogen sulfide (H₂S) gas abovethis cloud layer on both planets (3…
View article: An Updated Catalog of Vortices and Dust Devils on Jezero Crater, Mars from MEDA data
An Updated Catalog of Vortices and Dust Devils on Jezero Crater, Mars from MEDA data Open
The MEDA instrument on Mars 2020 has been operating on the surface of Mars for more than 1500 sols obtaining measurements of pressure, temperature and other environmental properties with a fast cadence. Vortices and dust devils appear ofte…
View article: Lunar In-situ Navigation and Communication Node - LUNINA
Lunar In-situ Navigation and Communication Node - LUNINA Open
LUNINA is an in-situ navigation and communication node. The proposed platform is designed to be a compact, independent, cost effective, robust, and location independent navigation beacon and communication relay on the Moon that can operate…
View article: The Uranus Multi-Experiment Radiometer for Haze and Clouds Characterization: development status
The Uranus Multi-Experiment Radiometer for Haze and Clouds Characterization: development status Open
The understanding of Uranus' atmosphere remains incomplete, primarily derived from ground-based observations, space telescope data, and the Voyager 2 flyby nearly three decades ago. The latest Decadal Survey [1] has highlighted a mission t…
View article: Aerosol optical properties observed by MEDA Radiation and Dust Sensor (RDS) at Jezero Crater, Mars
Aerosol optical properties observed by MEDA Radiation and Dust Sensor (RDS) at Jezero Crater, Mars Open
Aerosols on Mars are a primary element for studying the interaction between the solar radiation and the atmosphere and surface. Depending on properties such as aerosol number density, particle radius, or refractive index, the aerosols can …
View article: MEDA on Mars 2020: Environmental Data and Sensor Insights through Sol 145
MEDA on Mars 2020: Environmental Data and Sensor Insights through Sol 145 Open
. IntroductionThe Mars Environmental Dynamics Analyzer (MEDA) instrument onboard the Mars 2020 Perseverance rover [1] has been measuring the environmental conditions at Jezero Crater for over 1450 sols since landing, covering from Ls ~ 5° …
View article: Detection of visible-wavelength aurora on Mars
Detection of visible-wavelength aurora on Mars Open
Mars hosts various auroral processes despite the planet’s tenuous atmosphere and lack of a global magnetic field. To date, all aurora observations have been at ultraviolet wavelengths from orbit. We describe the discovery of green visible-…
View article: Methane precipitation in ice giant atmospheres
Methane precipitation in ice giant atmospheres Open
Context . Voyager-2 radio occultation measurements have revealed changes in the atmospheric refractivity within a 2–4 km layer near the 1.2-bar level in Uranus and the 1.6-bar level in Neptune. These changes were attributed to the presence…
View article: Drying of the Martian mesosphere during aphelion induced by lower temperatures
Drying of the Martian mesosphere during aphelion induced by lower temperatures Open
View article: Ozone Detector Based on Ultraviolet Observations on the Martian Surface
Ozone Detector Based on Ultraviolet Observations on the Martian Surface Open
Ozone plays a key role in both atmospheric chemistry and UV absorption in planetary atmospheres. On Mars, upper-tropospheric ozone has been widely characterized by space-based instruments. However, surface ozone remains poorly characterize…
View article: Decline in Water Ice Abundance in the Martian Mesosphere during Aphelion
Decline in Water Ice Abundance in the Martian Mesosphere during Aphelion Open
Clouds play a crucial role in the past and current climate of Mars. Cloud particles impact the planet's energy balance and atmospheric dynamics, as well as influence the vertical distribution of dust particles through dust scavenging. This…
View article: The UMR: Uranus Multi-Experiment Radiometer for Haze and Clouds Characterization
The UMR: Uranus Multi-Experiment Radiometer for Haze and Clouds Characterization Open
The present understanding of Uranus and Neptune has been derived primarily from terrestrial observations and observations conducted using space telescopes. Furthermore, a brief flyby conducted by the Voyager 2 spacecraft nearly three decad…
View article: Advance Dust Devil Detection with AI using Mars2020 MEDA instrument
Advance Dust Devil Detection with AI using Mars2020 MEDA instrument Open
IntroductionMars’ dust cycle is a critical factor that drives the weather and climate of the planet. Airbornedust affects the energy balance that drives the atmospheric dynamic. Therefore, for studying the present-day and recent-past…
View article: Lunar In-situ Navigation and Communication Node - LUNINA
Lunar In-situ Navigation and Communication Node - LUNINA Open
Introduction: LUNINA is an in-situ navigation and communication node. Proposed LUNINA platform is designed to be a compact, independent, cost effective, robust, and location independent navigation beacon and communication relay on the Moon…
View article: Microphysical modeling of methane ice clouds in the atmospheres of the Ice Giants.
Microphysical modeling of methane ice clouds in the atmospheres of the Ice Giants. Open
Voyager 2 radio occultation measurements of Uranus and Neptune revealed a layer approximately 2-4 km thick near 1.2 and 1.6 bars, respectively, wherein the atmospheric refractivity exhibited a slope variation (1, 2). These findings were in…
View article: First detection of visible-wavelength aurora on Mars
First detection of visible-wavelength aurora on Mars Open
IntroductionAuroras are hallmarks of the interaction between solar particles and the atmosphere of planets. Martian aurora was first discovered in 2005, since then, four different types have been identified: localized discreet aurora (Bert…
View article: Dust Accumulation and Lifting at the Landing Site of the Mars 2020 Mission, Jezero Crater, as Observed From MEDA
Dust Accumulation and Lifting at the Landing Site of the Mars 2020 Mission, Jezero Crater, as Observed From MEDA Open
We quantify the effect of dust accumulation at Jezero crater by means of a Dust Correction Factor (DCF) for the solar radiation measured by the photodiodes of the Radiation and Dust Sensor of the Mars 2020 mission. After one Mars Year, dus…
View article: Vortices and Dust Devils on Jezero Crater, Mars: inner thermal structure and dependence on surface properties 
Vortices and Dust Devils on Jezero Crater, Mars: inner thermal structure and dependence on surface properties  Open
We investigate the vortex and dust devil activity on Jezero crater over more than one and half Martian years of meteorological data acquired by the MEDA sensors on the Mars 2020 Perseverance rover. During the initial phase of the M2020 mis…
View article: Turbulence statistics of terrestrial Mars-analog and Martian dust devils
Turbulence statistics of terrestrial Mars-analog and Martian dust devils Open
Convective instabilities in the lowermost part of the atmosphere, so called the planetary boundary layer, can lead to the formation of convective vortices and form dust devils both on Earth and Mars. We performed mesoscale simulations for …
View article: The Uranus Multi-Experiment Radiometer for Haze and Clouds Characterization
The Uranus Multi-Experiment Radiometer for Haze and Clouds Characterization Open
View article: Using the Perseverance MEDA-RDS to identify and track dust devils and dust-lifting gust fronts
Using the Perseverance MEDA-RDS to identify and track dust devils and dust-lifting gust fronts Open
In the framework of the Europlanet 2024 Research Infrastructure Transnational Access programme, a terrestrial field campaign was conducted from 29 September to 6 October 2021 in Makgadikgadi Salt Pans (Botswana). The main goal of the campa…
View article: Solar Irradiance Sensor of RDM Exomars 2022 calibration
Solar Irradiance Sensor of RDM Exomars 2022 calibration Open
This work presents the procedure and results of the optical calibration of the SIS'22 Solar_Irradiance_Sensor (SIS'22) of METEO, the meteorological stations for the Exomars 2022 Kazachok lander. The calibration procedure applied for this m…
View article: Twilight Mesospheric Clouds in Jezero as Observed by MEDA Radiation and Dust Sensor (RDS)
Twilight Mesospheric Clouds in Jezero as Observed by MEDA Radiation and Dust Sensor (RDS) Open
The Mars Environmental Dynamics Analyzer instrument, on board NASA's Mars 2020 Perseverance rover, includes a number of sensors to characterize the Martian atmosphere. One of these sensors is the Radiation and Dust Sensor (RDS) that measur…
View article: Twilight mesospheric clouds in Jezero as observed by MEDA Radiation and Dust Sensor (RDS)
Twilight mesospheric clouds in Jezero as observed by MEDA Radiation and Dust Sensor (RDS) Open
The Mars Environmental Dynamics Analyzer (MEDA) instrument, on board the NASA’s Mars 2020 Perseverance rover, includes a number of sensors to characterize the Martian atmosphere. One of this sensors is the Radiation and Dust Sensor (RDS) t…
View article: Dust Lifting Through Surface Albedo Changes at Jezero Crater, Mars
Dust Lifting Through Surface Albedo Changes at Jezero Crater, Mars Open
We identify temporal variations in surface albedo at Jezero crater using first‐of‐their‐kind high‐cadence in‐situ measurements of reflected shortwave radiation during the first 350 sols of the Mars 2020 mission. Simultaneous Mars Environme…
View article: Mesospheric clouds in Jezero as observed by MEDA Radiation and Dust Sensor (RDS) at twilight
Mesospheric clouds in Jezero as observed by MEDA Radiation and Dust Sensor (RDS) at twilight Open
Clouds on Mars are primary elements for understanding the past and present climate of the planet. Cloud particles can affect the energy balance of the planet, and so the atmospheric dynamic, as well as influence the vertical distribution o…
View article: Miniaturized Radiometer for an Ice Giants mission for haze and cloud characterization
Miniaturized Radiometer for an Ice Giants mission for haze and cloud characterization Open
Uranus and Neptune, the Ice Giants, are the unique planets in the Solar System that have not received a dedicated mission. However, studying these planets is crucial for understanding the formation and evolution of our planetary system and…
View article: One Martian Year of MEDA/TIRS observations at the Mars 2020 landing site
One Martian Year of MEDA/TIRS observations at the Mars 2020 landing site Open
The Thermal Infrared Sensor (TIRS; Sebastián et al., 2021; Martínez et al., 2023) is one of the six sensor packages of the Mars Environmental Dynamics Analyzer (MEDA; Rodríguez-Manfredi et al., 2021), which in turn is one of…
View article: Initial Results of the Relative Humidity Observations by MEDA Instrument Onboard the Mars 2020 Perseverance Rover
Initial Results of the Relative Humidity Observations by MEDA Instrument Onboard the Mars 2020 Perseverance Rover Open
The Mars 2020 mission rover “Perseverance”, launched on 30 July 2020 by NASA, landed successfully 18 February 2021 at Jezero Crater, Mars (Lon. E 77.4509° Lat. N 18.4446°). The landing took place at Mars solar longitude Ls = 5.2°, close to…