Results 81 to 90 of about 51,564 (234)

THE THREE-DIMENSIONAL VISUALIZATION OF MARS DUST STORMS BASED ON DERIVING DIGITAL ELEVATION MAPS FROM SATELLITE IMAGERY [PDF]

, 2023
This work focuses on generating a Three-Dimensional Visualization of Mars\u27s local dust storms utilizing satellite images from publicly available archives.
Alzeyoudi, Meirah Ali
core   +1 more source

Organic Carbon and Ca‐Rich Carbonate Detections in Soils of the Northern Plains, Mars: Evaluation of Unreported Data From the Mars Phoenix Scout's Thermal Evolved Gas Analyzer (TEGA)

Journal of Geophysical Research: Planets, Volume 129, Issue 10, October 2024.
Abstract The Thermal Evolved Gas Analyzer (TEGA) analysis of surface and icy subsurface Phoenix landing site soils consisted of low (300–700°C) and high (>700°C) temperature CO2 evolutions that were attributed to organic carbon (83–1,484 μgC/g) and Ca‐rich carbonate (1.1–2.6 wt.%).
B. Sutter, P. D. Archer, P. B. Niles, D. W. Ming, D. Hamara, W. V. Boynton   +5 more
wiley   +1 more source

Likely Ferromagnetic Minerals Identified by the Perseverance Rover and Implications for Future Paleomagnetic Analyses of Returned Martian Samples

Journal of Geophysical Research: Planets, Volume 129, Issue 9, September 2024.
Abstract Although Mars today does not have a core dynamo, magnetizations in the Martian crust and in meteorites suggest a magnetic field was present prior to 3.7 billion years (Ga) ago. However, the lack of ancient, oriented Martian bedrock samples available on Earth has prevented accurate estimates of the dynamo's intensity, lifetime, and direction ...
Elias N. Mansbach, Tanya V. Kizovski, Eva L. Scheller, Tanja Bosak, Lucia Mandon, Briony Horgan, Roger C. Wiens, Christopher D. K. Herd, Sunanda Sharma, Jeffrey R. Johnson, Travis S. J. Gabriel, Olivier Forni, Yang Liu, Mariek E. Schmidt, Benjamin P. Weiss   +14 more
wiley   +1 more source

A Nested Weighted Tchebycheff Multi-Objective Bayesian Optimization Approach for Flexibility of Unknown Utopia Estimation in Expensive Black-box Design Problems [PDF]

arXiv, 2021
We propose a nested weighted Tchebycheff Multi-objective Bayesian optimization framework where we build a regression model selection procedure from an ensemble of models, towards better estimation of the uncertain parameters of the weighted-Tchebycheff expensive black-box multi-objective function.
arxiv  

Large Glacier‐Like Forms on Mars: Insights From Crater Morphologies and Crater Retention Ages

Journal of Geophysical Research: Planets, Volume 129, Issue 8, August 2024.
Abstract Glacier‐Like Forms (GLFs) are a subset of ice‐rich landforms known as Viscous Flow Features that populate Mars' mid‐latitudes. GLFs are morphologically similar to terrestrial valley glaciers and are thought to result from the redistribution of water ice from the Martian poles during periods of high obliquity throughout the Amazonian period ...
G. Driver, M. R. El‐Maarry, B. Hubbard, S. Brough   +3 more
wiley   +1 more source

Ter‐Diurnal Atmospheric Tide on Mars

Journal of Geophysical Research: Planets, Volume 129, Issue 8, August 2024.
Abstract Cyclic absorption of solar radiation generates oscillations in atmospheric fields. These oscillations are called atmospheric or thermal tides, which are furthermore modified by topography and surface properties. This leads to a complex mix of sun‐synchronous and non‐sun‐synchronous tides that propagate around the planet eastward and westward ...
Joonas Leino, Ari‐Matti Harri, Robert John Wilson, Don Banfield, Mark Lemmon, Mark Paton, Jose‐Antonio Rodriguez‐Manfredi, Hannu Savijärvi   +7 more
wiley   +1 more source

Longitudinal Dependance Of Solsticial Hadley Cell Detected At The Edge Of The Massive Martian Erg [PDF]

arXiv, 2011
Using public HIRISE images of MARS, I derive the wind directions at high Northern lattitudes, where many interesting eolian features are observed. BArchan dunes show prominent wind direction from the North indicating that they formed during the southern summer. But a few record consistent SE winds near the UTOPIA PLANITIA basin.
arxiv  

Investigating a Link Between Topography and Scalloped Depressions in Utopia Planitia, Mars [PDF]

, 2019
: Western Utopia Planitia, located in the northern plains of Mars, is home to a myriad of possible periglacial landforms. One of these is scalloped depressions, defined primarily by their oval-shape and north-south asymmetry, including both pole-facing ...

core  

Martian Dust Storm Spatial‐Temporal Analysis of Tentative Landing Areas for China's Tianwen‐3 Mars Mission

Earth and Space Science, Volume 11, Issue 6, June 2024.
Abstract China's first Mars sampling return mission (Tianwen‐3) is designed to launch and retrieve samples around 2030. Three tentative landing areas (TLAs) (Amazonis, Chryse and Utopia Planitiae, i.e., TLA‐A, TLA‐C and TLA‐U) are selected based on elevation <−2,000 m and latitude between 17° and 30°N. As a dominant feature of Martian meteorology, dust
Yuan Tian, Bo Li, Zhaojin Rong, Shaojie Qu, Shengbo Chen   +4 more
wiley   +1 more source

Extreme Value Statistics for Analysing Simulated Environmental Extremes [PDF]

arXiv, 2023
We present the methods employed by team `Uniofbathtopia' as part of the Data Challenge organised for the 13th International Conference on Extreme Value Analysis (EVA2023), including our winning entry for the third sub-challenge. Our approaches unite ideas from extreme value theory, which provides a statistical framework for the estimation of ...
arxiv