M. D. Smith
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View article: Evidence of an enhanced near-surface ozone layer at tropical latitudes on Mars
Evidence of an enhanced near-surface ozone layer at tropical latitudes on Mars Open
Ozone plays a key role in both atmospheric and near-surface chemistry, as well as in UV absorption in planetary atmospheres. Here, we report observations of ozone from the surface of another planet, using the ozone detector included in the…
View article: Diurnal Temperature Variations and Migrating Thermal Tides in the Martian Lower Atmosphere Observed by the Emirates Mars InfraRed Spectrometer
Diurnal Temperature Variations and Migrating Thermal Tides in the Martian Lower Atmosphere Observed by the Emirates Mars InfraRed Spectrometer Open
The Martian atmosphere experiences large diurnal variations due to the ∼24.6 hr planetary rotation and its low heat capacity. Understanding such variations on a planetary scale is limited due to the lack of observations, which are greatly …
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: Monitoring Dust in the Martian Atmosphere: Recent Advances and Applications in Column Dust Optical Depth Processing
Monitoring Dust in the Martian Atmosphere: Recent Advances and Applications in Column Dust Optical Depth Processing Open
Introduction: We have captured Martian dust and weather over 25 years of continuous satellite observations. Using thermal infrared (IR) data from instruments like TES (Mars Global Surveyor), THEMIS (Mars Odyssey), MCS (Mars Reconnaissance …
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: Composition and Chemistry of the Martian Atmosphere as Observed by Mars Express and ExoMars Trace Gas Orbiter
Composition and Chemistry of the Martian Atmosphere as Observed by Mars Express and ExoMars Trace Gas Orbiter Open
The atmosphere of Mars has been studied for many years now by a long series of missions. The paper focuses on the results obtained by two of these that are led by European researchers overseen by the European Space Agency, i.e., Mars Expre…
View article: Establishment of an Australian National Master Linkage Key (NMLK) between AIHW Health Linkage spine (HLS) and Jurisdictional Master Linkage Keys (MLK) - NSW example
Establishment of an Australian National Master Linkage Key (NMLK) between AIHW Health Linkage spine (HLS) and Jurisdictional Master Linkage Keys (MLK) - NSW example Open
ObjectivesThis paper describes a Population Health Research Network project establishing the NMLK as a national linkage system utilising an enduring linkage between national and jurisdictional linkage spines. It used keys from existing end…
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: Monitoring Martian Atmospheric Dust using Multi-annual, Multi-instrument Orbital Observations
Monitoring Martian Atmospheric Dust using Multi-annual, Multi-instrument Orbital Observations Open
Introduction: We have currently accumulated over 25 years of continuous satellite data on Martian dust and, generally, on the weather of the Red Planet. By utilizing data from instruments operating in the thermal infrared such as the Therm…
View article: Aerosol optical properties observed by MEDA Radiation an Dust Sensor (RDS) at Jezero Crater, Mars
Aerosol optical properties observed by MEDA Radiation an Dust Sensor (RDS) at Jezero Crater, Mars Open
Aerosols on Mars are a primary elements 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 impact of th…
View article: Spectroscopic Characterization and Evolution of Martian Nighttime CO2 Frost at Equatorial Latitudes with EMM/EMIRS
Spectroscopic Characterization and Evolution of Martian Nighttime CO2 Frost at Equatorial Latitudes with EMM/EMIRS Open
IntroductionThe Emirates Mars InfraRed Spectrometer (EMIRS) instrument onboard the Emirates Mars Mission (EMM) “Hope” probe is a Fourier Transform Infrared spectrometer that has been observing the Martian surface and atmosphere…
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: Real-time quality assurance and quality control for a high frequency radar network
Real-time quality assurance and quality control for a high frequency radar network Open
This paper recommends end to end quality assurance methods and quality control tests for High Frequency Radar Networks. We focus on the network that is operated by the Mid Atlantic Regional Association Coastal Ocean Observing System (MARAC…
View article: Present-day thermal and water activity environment of the Mars Sample Return collection
Present-day thermal and water activity environment of the Mars Sample Return collection Open
The Mars Sample Return mission intends to retrieve a sealed collection of rocks, regolith, and atmosphere sampled from Jezero Crater, Mars, by the NASA Perseverance rover mission. For all life-related research, it is necessary to evaluate …
View article: Diurnal Temperature Variations and Thermal Tides in the Martian Atmosphere before and during Regional Dust Storms Observed by EMIRS
Diurnal Temperature Variations and Thermal Tides in the Martian Atmosphere before and during Regional Dust Storms Observed by EMIRS Open
The Martian atmosphere experiences large diurnal variations due to its small thickness and low heat capacity. Driven by diurnal solar insolation and influenced by topography and radiative drivers (clouds and dust), diurnal temperature chan…
View article: Comparing Atmospheric Temperature Fluctuations Across Landed Missions
Comparing Atmospheric Temperature Fluctuations Across Landed Missions Open
We analyze and compare atmospheric temperature data from three landed missions: Mars Science Laboratory (MSL) Curiosity rover, Phoenix lander, and Pathfinder lander. Pathfinder and Phoenix were lander missions that operated for 84 and 151 …
View article: Heterogeneous Processes in the Atmosphere of Mars and Impact on H<sub>2</sub>O<sub>2</sub> and O<sub>3</sub> Abundances
Heterogeneous Processes in the Atmosphere of Mars and Impact on H<sub>2</sub>O<sub>2</sub> and O<sub>3</sub> Abundances Open
Current models underestimate the highest observed ozone (O 3 ) column densities on Mars. These estimates could be improved by including the uptake of odd hydrogen species (HO x ) on water ice clouds, but the reported uptake coefficient of …
View article: Effects of Global Dust Storms on Water Vapor in the Southern Polar Region of Mars
Effects of Global Dust Storms on Water Vapor in the Southern Polar Region of Mars Open
Martian global dust storms (GDS) can significantly affect the water cycle in the lower atmosphere (0−40 km). We compare the evolution of water vapor abundances, dust opacity and surface temperatures in the Southern Polar Region (SPR) durin…
View article: Constraining Changes in Surface Dust Thickness on Mars Using Diurnal Surface Temperature Observations From EMIRS
Constraining Changes in Surface Dust Thickness on Mars Using Diurnal Surface Temperature Observations From EMIRS Open
Diurnal surface temperature data collected from the Emirates Mars Infrared Spectrometer have been used to characterize dust redistribution on Mars following a regional dust storm in January 2022. A comparative temporal analysis is conducte…
View article: The Mars Science Laboratory record of optical depth measurements via solar imaging
The Mars Science Laboratory record of optical depth measurements via solar imaging Open
The Mars Science Laboratory Curiosity rover has monitored the Martian environment in Gale crater since landing in 2012. This study reports the record of optical depth derived from visible and near-infrared images of the Sun. Aerosol optica…
View article: Observations of Effects of Global Dust Storms on Water Vapor in the Southern Polar Region of Mars.
Observations of Effects of Global Dust Storms on Water Vapor in the Southern Polar Region of Mars. Open
Martian Global Dust Storms (GDS) can significantly affect the water cycle in the lower atmosphere (0-40 km). We compare the evolution of water vapor abundances, dust opacity and surface temperatures in the Southern Polar Region (SPR) durin…
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: Diurnal and Seasonal Mapping of Martian Ices With EMIRS
Diurnal and Seasonal Mapping of Martian Ices With EMIRS Open
Condensation and sublimation of ices at the surface of the planet is a key part of both the Martian H 2 O and CO 2 cycles, either from a seasonal or diurnal aspect. While most of the ice is located within the polar caps, surface frost is k…
View article: The Mars Atmosphere Water Ice Aerosol Climatology by MRO/CRISM: 5 Mars Years of Observations
The Mars Atmosphere Water Ice Aerosol Climatology by MRO/CRISM: 5 Mars Years of Observations Open
We use near‐infrared spectra returned from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard the Mars Reconnaissance Orbiter (MRO) to provide retrievals of the column‐integrated optical depth of water ice aerosols for…
View article: Supplemental Data Set for "Constraining Changes in Surface Dust Thickness on Mars Using Diurnal Surface Temperature Observations from EMIRS"
Supplemental Data Set for "Constraining Changes in Surface Dust Thickness on Mars Using Diurnal Surface Temperature Observations from EMIRS" Open
Supporting data set for manuscript "Constraining Changes in Surface Dust Thickness on Mars Using Diurnal Surface Temperature Observations from EMIRS". Provides the binned and averaged EMIRS surface temperatures acquired before and after th…