A5049922976- Planetary Science and Exploration
- Astro and Planetary Science
- Space Exploration and Technology
- Geology and Paleoclimatology Research
- Space Science and Extraterrestrial Life
- Geographic Information Systems Studies
- Geochemistry and Geologic Mapping
- Geological Modeling and Analysis
- Data Management and Algorithms
- Geological and Geochemical Analysis
- Spaceflight effects on biology
- Marine and environmental studies
- Advanced Computational Techniques and Applications
- Satellite Image Processing and Photogrammetry
- Methane Hydrates and Related Phenomena
- Scientific Research and Discoveries
- Space exploration and regulation
- Spacecraft Design and Technology
- Climate change and permafrost
- Classical Philosophy and Thought
- earthquake and tectonic studies
- Landslides and related hazards
- Hydrocarbon exploration and reservoir analysis
- Maritime and Coastal Archaeology
- Isotope Analysis in Ecology
National Chengchi University
2017-2025
Freie Universität Berlin
2010-2023
University of Seoul
2016-2018
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2003-2016
Planet
2013-2014
Brown University
2005
We investigate the surface morphology of a study area in western Utopia Planitia, Mars, which is characterized by variety landforms that resemble those terrestrial periglacial landscapes. Polygonally fractured ground and thermokarst‐like depressions are found to be located young mantling deposit with thickness several tens meters. observe latitudinal dependence degradation this deposit. Larger depressions, whose floors reveal underlying basement rocks, cover higher fraction total terrain...
We present a large‐scale spring hypothesis for the formation of various enigmatic light‐toned deposits (LTDs) on Mars. Layered to massive LTDs occur extensively in Valles Marineris, chaotic terrains, and several large craters, particular, those located Arabia Terra. Most these are not easily explained with either single process or multiple ones, combination occurring sequentially. Spring can have very wide range internal facies exhibit complex architectural variations. propose concept...
Transverse dunes cover the valley floor of Nirgal Vallis, a 670 km long network at 318°E and 29°S. The are superposed by small undeformed impact craters, which implies that inactive under present atmospheric conditions. last active phase dune movement (absolute age) can be determined crater size frequency distributions. derived absolute ages from high‐resolution Mars Global Surveyor Orbiter Camera imagery range approximately 300,000 years to 1.4 Myr B.P. (error factor 2). also gully deposits...
An automated crater detection algorithm is presented which exploits image data. The briefly described and its application demonstrated on a variety of different Martian geomorphological areas sensors (Viking Orbiter Camera, Mars Camera (MOC), Laser Altimeter (MOLA), High Resolution Stereo (HRSC)). We show assessment results through both an intercomparison locations with those from the manually-derived Crater Consortium (MCC) catalogue craters. attains accuracy 70 to 90 percent quality factor...
Circumferential depressions enclosing mesas and plateaus in the northern Kasei Valles Tartarus Colles regions of Mars are interpreted as indicators former extent lobate debris aprons, thought to be mixtures ice clastic particles. These aprons existed about 1 Ga ago were embayed by lavas or other flow deposits. After had been removed sublimation deflation, topographic with a depth 50 m width several kilometers left behind between mesa plateau scarp solidified materials. moats located...
Abstract Periglacial landforms on Spitsbergen (Svalbard, Norway) are morphologically similar to Mars that probably related the past and/or present existence of ice at or near surface. Many these landforms, such as gullies, debris-flow fans, polygonal terrain, fractured mounds and rock-glacier-like features, observed in close spatial proximity mid-latitude craters Mars. On Svalbard, analogous occur strikingly proximity, which makes them useful study cases infer chronological evolution Martian...
Abstract We used a grid‐mapping technique to analyze the distribution of 13 water‐ and ice‐related landforms in Acidalia Planitia as part joint effort study three main basins northern lowlands Mars, that is, Acidalia, Utopia, Arcadia Planitiae. The were mapped at full Context Camera resolution along 300‐km‐wide strip from 20°N 84°N. identified four landform assemblages: (1) Geologically recent polar cap (massive ice), which superposes latitude‐dependent mantle (LDM) (LA1); (2) landforms,...