RL
Member Since 1997
Ralph D. Lorenz
Principal Professional Staff, Johns Hopkins University Applied Physics Laboratory
AGU Research
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Dust Accumulation and Lifting at the Landing Site of the Mars 2020 Mission, Jezero Crater, as Observed From MEDA
GEOPHYSICAL RESEARCH LETTERS
06 june 2024
Álvaro Vicente-Retortillo, Victor Apestigue Palaci...
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 pho...
Perseverance MEDA Atmospheric Pressure Observations—Initial Results
JOURNAL OF GEOPHYSICAL RESEARCH: PLANETS
07 march 2024
Ari-Matti Harri, Mark Paton, Maria Hieta, J Polkko...
The Mars2020 Perseverance Rover landed successfully on the Martian surface on the Jezero Crater floor (18.44°N, 77.45°E) at Martian solar...
Dust Accumulation at Jezero Crater: MEDA Observations, Modeling Efforts and Comparison with Other Missions
ONLINE POSTER SESSION FOR EARTH AND PLANETARY SURFACE PROCESSES I
earth and planetary surface processes | 22 january 2024
Álvaro Vicente-Retortillo, Mark T. Lemmon, German ...
Accumulation of dust poses serious challenges for solar powered missions at the Martian surface and affects the performance of mission assets. Therefo...
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Using surface mission data to investigate dust lifting on Mars.
PROCESSES IN THE PRESENT-DAY ATMOSPHERE OF MARS III ORAL
planetary sciences | 15 december 2023
Claire E. Newman, Álvaro Vicente-Retortillo, Ralph...
Dust storms are the largest source of atmospheric variability on Mars. Understanding where and when storms will occur would decrease risk in entry-des...
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Titan’s Northern Lake District as Observed by Cassini Bistatic Radar
TITAN AND MARS BONUS ROUND ORAL
planetary sciences | 14 december 2023
Giancorrado Brighi, Valerio Poggiali, marco mastro...
Between 2006 and 2016, the Cassini spacecraft carried out 13 bistatic radar (BSR) experiments over the surface of Saturns largest moon, Titan. During ...
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Too Hot for Bot? Examining the Likely Thermal Environment Facing Future Probes on Icy Worlds
OCEAN WORLDS AND SEARCH FOR LIFE: HORIZONS IN ICY SATELLITE SCIENCE AT THE LAUNCH OF THE HISTORIC EUROPA CLIPPER MISSION III ORAL
planetary sciences | 14 december 2023
Matthew Walker, Kathleen L Craft, Alyssa Rhoden, C...
Europas ice shell and subsurface ocean are widely viewed as potentially habitable and are the targets of the upcoming Europa Clipper mission. Future m...
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Near Surface Excitation of the Martian Ground as Measured by InSight
THE NEW MARS UNDERGROUND I POSTER
planetary sciences | 14 december 2023
Laurent Pou, Mark P. Panning, Sharon Kedar, Simon ...
The InSight mission landed on Mars in November 2018 and deployed for the first time a seismometer, the SEIS instrument, on its surface. For more than ...
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A Tectonic Origin for the Largest Marsquake Observed by InSight
GEOPHYSICAL RESEARCH LETTERS
17 october 2023
Benjamin Fernando, Ingrid Daubar, Constantinos Cha...
The S1222a marsquake detected by InSight on 4 May 2022 was the largest of the mission, at MwMa ${M}_{w}^{Ma}$ 4.7. Given its resemblance to two oth...