Results 21 to 30 of about 51,564 (234)

Deposition and degradation of a volatile‐rich layer in Utopia Planitia and implications for climate history on Mars [PDF]

Journal of Geophysical Research: Planets, 2007
We investigate the surface morphology of a study area in western Utopia Planitia, Mars, which is characterized by a variety of landforms that resemble those of terrestrial periglacial landscapes. Polygonally fractured ground and thermokarst‐like depressions are found to be located in a young mantling deposit with a thickness of several tens of meters ...
Anne Morgenstern, Ernst Hauber, D. Reiss, S. van Gasselt, Guido Grosse, Lutz Schirrmeister   +5 more
openalex   +6 more sources

Origin of the polygons and the thickness of Vastitas Borealis Formation in Western Utopia Planitia on Mars [PDF]

Geophysical Research Letters, 2003
Many middle scale (about 100m cracking space) polygons are located between the area of the giant polygons and the thumbprint terrains in Western Utopia Planitia. Most of the patterns are located on Vastitas Borealis Formation. The polygonal patterns have frequently been associated with collapsed features, such as a covered trough like features(the ...
Kenji Yoshikawa
openalex   +4 more sources

Surface Permittivity Estimation of Southern Utopia Planitia by High-Frequency RoPeR in Tianwen-1 Mars Exploration [PDF]

IEEE Transactions on Geoscience and Remote Sensing
China’s Tianwen-1 successfully landed in the southern Utopian Planitia of the Martian surface on 15 May 2021. The Zhurong Rover, equipped with a high-frequency full-polarimetric Rover Penetrating Radar (RoPeR), traveled 1921 m to investigate the shallow ...
Lilong Zou, Hai Liu, Amir M. Alani, Guangyou Fang   +3 more
openalex   +2 more sources

Geology of the MER 2003 “Elysium” candidate landing site in southeastern Utopia Planitia, Mars [PDF]

Journal of Geophysical Research: Planets, 2003
The NASA Mars Exploration Rover (MER) Project has been considering a landing‐site ellipse designated EP78B2 in southeastern Utopia Planitia, southwest of Elysium Mons. The site appears to be relatively safe for a MER landing site because of its predicted low wind velocities in mesoscale atmospheric circulation models and its low surface roughness at ...
Kenneth L. Tanaka, M. H. Carr, J. A. Skinner, M. S. Gilmore, T. M. Hare   +4 more
openalex   +4 more sources

Volcanic terrain and the possible periglacial formation of “excess ice” at the mid-latitudes of Utopia Planitia, Mars [PDF]

Earth and Planetary Science Letters, 2015
At the mid-latitudes of Utopia Planitia (UP), Mars, a suite of spatially-associated landforms exhibit geomorphological traits that, on Earth, would be consistent with periglacial processes and the possible freeze–thaw cycling of water. The suite comprises small-sized polygonally-patterned ground, polygon-junction and -margin pits, and scalloped ...
R. J. Soare, B. Horgan, Susan J. Conway, Colin Souness, M. R. El‐Maarry   +4 more
openalex   +7 more sources

Grid Mapping the Northern Plains of Mars: Using Morphotype and Distribution of Ice‐Related Landforms to Understand Multiple Ice‐Rich Deposits in Utopia Planitia [PDF]

Journal of Geophysical Research: Planets, 2018
This work in Utopia Planitia is the first continuous regional mapping of ice‐related landforms integrated into an effort to study the three main basins (Arcadia, Acidalia, and Utopia Planitiae) in the northern plains.
Antoine Séjourné, F. Costard, Zuzanna Swirad, A. Łosiak, Sylvain Bouley, I. B. Smith, M. R. Balme, Csilla Orgel, Jason Ramsdale, Ernst Hauber, Susan J. Conway, S. van Gasselt, D. Reiss, Andreas Johnsson, Colman Gallagher, J. A. Skinner, Ákos Keresztúri, T. Platz   +17 more
openalex   +2 more sources

Establishment of Safety Evaluation Factors for Dust Storms in the Landing Area Selection for Tianwen‐3 Mission

Earth and Space Science
China's Tianwen‐3 mission is expected to be launched around 2028, making it the first Mars sample return mission. Dust storms occurring in all seasons on Mars can affect the accuracy and safety of the landing and takeoff phases of Mars sampling missions.
Puzheng Wen, Yuan Tian, Bo Li, Shaojie Qu   +3 more
doaj   +2 more sources

Electric Mars: A large trans‐terminator electric potential drop on closed magnetic field lines above Utopia Planitia [PDF]

, 2016
Parallel electric fields and their associated electric potential structures play a crucial role in ionospheric‐magnetospheric interactions at any planet.
G. Collinson, D. L. Mitchell, Shaosui Xu, A. Glocer, J. M. Grebowsky, Takuya Hara, R. J. Lillis, J. R. Espley, C. Mazelle, J. A. Sauvaud, A. Fedorov, M. W. Liemohn, L. Andersson, B. M. Jakosky   +13 more
openalex   +2 more sources

Possible crater-based pingos, paleolakes and periglacial landscapes at the high latitudes of Utopia Planitia, Mars [PDF]

Icarus, 2012
Closed-system pingos (CSPs) are perennial ice-cored mounds that evolve in relatively deep and continuous permafrost. They occur where thermokarst lakes either have lost or are losing their water by drainage, evaporation or sublimation and form by means of freeze-thaw cycling, permafrost aggradation and pore-water migration. The presence of CSPs on Mars,
R. J. Soare, Susan J. Conway, G. Pearce, J. M. Dohm, P. M. Grindrod   +4 more
openalex   +7 more sources

Analyzing spatial distributions and alignments of pitted cone features in Utopia Planitia on Mars

Icarus (New York, N.Y. 1962), 2023
Mackenzie M. Mills, A. S. McEwen, Amanda N. Hughes, Jonathan Kim, C. H. Okubo   +4 more
openalex   +2 more sources