Article
Geosciences, Multidisciplinary
P. B. Buhler
Summary: By analyzing the Massive CO2 Ice Deposit (MCID) in Mars' south polar region, researchers have filled the gap in global water cycle records and provided insights into Mars' climate history. The study reveals that the deposition rate of H2O ice is variable and dependent on the obliquity of Mars.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geography, Physical
E. Lebas, R. Gromig, S. Krastel, B. Wagner, G. Fedorov, C. Goertz, T. Averes, D. Subetto, M. Naumenko, M. Melles
Summary: Seismic reflection data and sediment core data provide insight into the environmental and sedimentological history of Lake Ladoga since the late Quaternary, including basin bedrock reshaping, post-glacial mound formation, deglaciation sedimentation, and Holocene lacustrine sedimentation. Major fault systems and unconformities related to lake-level fluctuations were also identified in the study.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Astronomy & Astrophysics
Bartosz Pieterek, Jakub Ciazela, Anthony Lagain, Marta Ciazela
Summary: Tharsis is the largest volcanic province on Mars and in the solar system, consisting of major volcanoes and numerous smaller volcanic cones and vents. The origin of the smaller volcanoes is not fully understood, but they may be related to the evolution of the larger volcanic edifices or controlled by fault systems. In this study, satellite images were used to analyze the central part of Tharsis and identify the spatial distribution and alignment of volcanic edifices. It was found that the formation of these edifices is controlled by at least six magma-plumbing systems associated with major volcanoes. The relatively young age of volcanic activity suggests active hydrothermal systems triggered by magma-water interaction.
Article
Astronomy & Astrophysics
An Yin, Seulgi Moon, Mackenzie Day
Summary: Through geomorphologic mapping, this study identified various glacial landform features surrounding the Oudemans crater in the central Tharsis rise on Mars, indicating the possible presence of a massive glacier that once covered the region. The findings support the hypothesis of a Tharsis ice cap.
Article
Multidisciplinary Sciences
Andrew J. Christ, Paul R. Bierman, Joerg M. Schaefer, Dorthe Dahl-Jensen, Jorgen P. Steffensen, Lee B. Corbett, Dorothy M. Peteet, Elizabeth K. Thomas, Eric J. Steig, Tammy M. Rittenour, Jean-Louis Tison, Pierre-Henri Blard, Nicolas Perdrial, David P. Dethier, Andrea Lini, Alan J. Hidy, Marc W. Caffee, John Southon
Summary: Understanding the history of the Greenland Ice Sheet (GrIS) is crucial for determining its response to climate change and contribution to sea level rise. Through the analysis of subglacial sediment at the base of the Camp Century ice core, researchers have uncovered evidence of at least two episodes of ice-free, vegetated conditions in northwestern Greenland during the Pleistocene, suggesting that the GrIS persisted through much of the Pleistocene but experienced melting and reformation at least once since 1.1 million years ago.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Astronomy & Astrophysics
David Fisher, Denis Lacelle, Wayne Pollard
Summary: We can redistribute ground ice in Martian regolith by using freezing point depressing magnesium and calcium perchlorates, which is achieved through the migration of residual liquid water following the initial deposition of ground ice. This migration is driven by forces generated by periodic surface temperatures and the geothermal vertical temperature gradient. Silt and clay rich regoliths behave differently in this process, with silt exhibiting significantly higher water speeds compared to clay.
Article
Multidisciplinary Sciences
Eelco J. Rohling, Jimin Yu, David Heslop, Gavin L. Foster, Bradley Opdyke, Andrew P. Roberts
Summary: Sea level and deep-sea temperature variations are crucial indicators of global climate changes. Recent studies have shown distinct nonlinearity between sea level and delta(w) changes over the past 40 million years, indicating complex dynamical behavior in Earth's climate system.
Article
Geosciences, Multidisciplinary
Colin M. M. Dundas, Michael T. T. Mellon, Liliya V. V. Posiolova, Katarina Miljkovic, Gareth S. S. Collins, Livio L. L. Tornabene, Vidhya Ganesh Rangarajan, Matthew P. P. Golombek, Nicholas H. H. Warner, Ingrid J. J. Daubar, Shane Byrne, Alfred S. S. McEwen, Kimberly D. D. Seelos, Donna Viola, Ali M. M. Bramson, Gunnar Speth
Summary: Water ice in the mid-latitudes of Mars has fluctuated due to the planet's orbit, tilt, and climate changes. A new impact crater near 35 degrees N has revealed the lowest-latitude exposure of subsurface ice on the planet. This crater, the largest of its kind, provides valuable information about the history of Martian climate. The relatively pure ice deposit in the crater was once much thicker and extended beyond 35 degrees N, but it has now mostly vanished and is covered by surface ice.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Multidisciplinary Sciences
Yang Liu, Xing Wu, Yu-Yan Sara Zhao, Lu Pan, Chi Wang, Jia Liu, Zhenxing Zhao, Xiang Zhou, Chaolin Zhang, Yuchun Wu, Wenhui Wan, Yongliao Zou
Summary: This study used data collected by the Zhurong rover of China's Tianwen-1 mission to identify hydrated minerals and liquid water activities at the landing site in the Amazonian region of Mars, indicating a more active hydrosphere on Mars than previously believed.
Article
Geography, Physical
Anders E. Carlson, Brian L. Beard, Robert G. Hatfield, Matthew Laffin
Summary: Through sediment geochemistry analysis in the Bellingshausen Sea, this study infers the presence or absence of ice sheets on West Antarctica and the Antarctic Peninsula during the Last Interglacial. The evidence suggests that the West Antarctic Ice Sheet may have been absent during the Last Interglacial, consistent with previous ice core constraints.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Multidisciplinary Sciences
J. Alexis P. Rodriguez, Darrel K. Robertson, Jeffrey S. Kargel, Victor R. Baker, Daniel C. Berman, Jacob Cohen, Francois Costard, Goro Komatsu, Anthony Lopez, Hideaki Miyamoto, Mario Zarroca
Summary: In 1976, NASA's Viking 1 Lander successfully operated on the Martian surface, discovering an enormous impact crater that suggests a marine impact event on Mars. This finding provides important insights into the early environment of Mars.
SCIENTIFIC REPORTS
(2022)
Article
Geography, Physical
Neal R. Iverson, Sarah E. Krueger, Chris Harding
Summary: The distribution of drumlin fields in the glacial zone contains important information about ice sheet dynamics. Drumlins were not formed beneath the southernmost margin of the Laurentide Ice Sheet, including the Des Moines Lobe, while they were present beneath the northern lobes. The absence of drumlins in the southernmost lobes may be due to the combination of surging and stagnation, while the presence of drumlins in the northern lobes is likely a result of climatically-forced ice advance.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Meteorology & Atmospheric Sciences
M. S. Madsen, S. Yang, G. Aoalgeirsdottir, S. H. Svendsen, C. B. Rodehacke, I. M. Ringgaard
Summary: This study presents a new model system, EC-Earth-PISM, that explores the role of the Greenland Ice Sheet in climate change. The research emphasizes the importance of including interactive ice sheets in climate change projections and highlights the key role of the melt-albedo feedback in the response of the ice sheet and its influence on the changing climate in the Arctic.
Article
Geochemistry & Geophysics
Vivek Krishnan, P. Senthil Kumar
Summary: Tharsis, the largest volcanic region on Mars, consists of several shield volcanoes. This study reveals that volcanic activity in the Alba Mons and Ceraunius Fossae regions has occurred continuously over the last few hundred million years. The volcanic activity shifted from the central volcano in Alba Mons to the south in Ceraunius Fossae, with the formation of grabens and pit chains resulting from magmatic intrusion. Boulder avalanches on the slopes of grabens and pit chains indicate the triggering of marsquakes by both tectonic and volcanic activity. The potential epicentral zone of a recent marsquake is identified in the northern Tharsis region. It is suggested that long-lived magma chambers and subcrustal magma underplating, driven by a mantle plume, are present beneath the Alba Mons volcano.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2023)
Correction
Meteorology & Atmospheric Sciences
Hansi A. Singh, Lorenzo M. Polvani
Summary: A correction to this paper has been published.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2021)
Article
Multidisciplinary Sciences
Joseph S. Levy, Caleb Fassett, John W. Holt, Reid Parsons, Will Cipolli, Timothy A. Goudge, Michelle Tebolt, Lily Kuentz, Jessica Johnson, Fairuz Ishraque, Bronson Cvijanovich, Ian Armstrong
Summary: Glacial landforms on Mars, such as lobate debris aprons, may have experienced multiple cycles of ice deposition and continuous flow, similar to terrestrial glaciers. Studies have found that boulders atop Martian glacial landforms are clustered in bands, with more bands appearing at higher latitudes, longer debris apron lengths, and pole-facing flow orientations. This suggests a correlation between latitude and boulder clustering, indicating ice mass-balance operates on a global scale on Mars.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Geochemistry & Geophysics
Y. Cho, T. Morota, M. Kanamaru, N. Takaki, K. Yumoto, C. M. Ernst, M. Hirabayashi, O. S. Barnouin, E. Tatsumi, K. A. Otto, N. Schmitz, R. J. Wagner, R. Jaumann, H. Miyamoto, H. Kikuchi, R. Hemmi, R. Honda, S. Kameda, Y. Yokota, T. Kouyama, H. Suzuki, M. Yamada, N. Sakatani, C. Honda, M. Hayakawa, K. Yoshioka, M. Matsuoka, T. Michikami, N. Hirata, H. Sawada, K. Ogawa, S. Sugita
Summary: The crater morphology and surface age of asteroid Ryugu are influenced by the abundance of boulders on and beneath its surface, with most craters showing well-defined circular depressions outlined by boulders on the rim. Larger craters on Ryugu contain numerous large boulders on their floors, while smaller craters have smooth circular floors and dark centers. The size-frequency distribution of craters in different regions on Ryugu suggests a complex geological history dating back millions of years.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2021)
Article
Engineering, Aerospace
Ryota Fuse, Keigo Enya, Shingo Kameda, Hiroki Kato, Naoya Osada, Ko Ishibashi, Masanobu Ozaki, Naoya Sakatani, Toru Kouyama, Hidehiko Suzuki, Tomoki Nakamura, Hideaki Miyamoto, Shinsuke Abe, Yuya Goda, Hajime Murao
Summary: The MMX spacecraft is equipped with two cameras for scientific observation of the Martian moon Phobos, with one wide-angle multiband camera system specifically designed to study the regional differences and absorption bands on Phobos. The study focuses on reducing noise in the optical system design by addressing stray light, which is achieved by placing filters away from the sensor and reducing the reflectances of filters and lenses to effectively reduce stray light.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Multidisciplinary Sciences
Hiroyuki K. M. Tanaka, Masaatsu Aichi, Cristiano Bozza, Rosa Coniglione, Jon Gluyas, Naoto Hayashi, Marko Holma, Osamu Kamoshida, Yasuhiro Kato, Tadahiro Kin, Pasi Kuusiniemi, Giovanni Leone, Domenico Lo Presti, Jun Matsushima, Hideaki Miyamoto, Hirohisa Mori, Yukihiro Nomura, Laszlo Olah, Sara Steigerwald, Kenji Shimazoe, Kenji Sumiya, Hiroyuki Takahashi, Lee F. Thompson, Yusuke Yokota, Sean Paling, Masaki Satoh, Dezso Varga
Summary: Tidal measurements are important for protecting coastal communities and sea traffic. Deploying detector arrays underneath the seafloor can provide continuous data for tidal monitoring, showing potential for practical application in heavy traffic waterways worldwide.
SCIENTIFIC REPORTS
(2021)
Article
Geosciences, Multidisciplinary
Koji Matsumoto, Naru Hirata, Hitoshi Ikeda, Toru Kouyama, Hiroki Senshu, Keiko Yamamoto, Hirotomo Noda, Hideaki Miyamoto, Akito Araya, Hiroshi Araki, Shunichi Kamata, Nicola Baresi, Noriyuki Namiki
Summary: The Japanese MMX mission, scheduled for launch in 2024, aims to investigate the origin of Phobos and Deimos, conduct comprehensive remote-sensing measurements, and return regolith samples from Phobos. Geodetic measurements of gravity, shape, and rotation parameter provide constraints on the internal structure, with mission instruments and operational strategies key to meeting the mission requirements.A preliminary imaging strategy from a quasi-satellite orbit is expected to create a base shape model in the early stage of the mission, with geodetic products playing a crucial role in interpreting data from various mission instruments and selecting possible landing sites.
EARTH PLANETS AND SPACE
(2021)
Article
Geosciences, Multidisciplinary
Tomoki Nakamura, Hitoshi Ikeda, Toru Kouyama, Hiromu Nakagawa, Hiroki Kusano, Hiroki Senshu, Shingo Kameda, Koji Matsumoto, Ferran Gonzalez-Franquesa, Naoya Ozaki, Yosuke Takeo, Nicola Baresi, Yusuke Oki, David J. Lawrence, Nancy L. Chabot, Patrick N. Peplowski, Maria Antonietta Barucci, Eric Sawyer, Shoichiro Yokota, Naoki Terada, Stephan Ulamec, Patrick Michel, Masanori Kobayashi, Sho Sasaki, Naru Hirata, Koji Wada, Hideaki Miyamoto, Takeshi Imamura, Naoko Ogawa, Kazunori Ogawa, Takahiro Iwata, Takane Imada, Hisashi Otake, Elisabet Canalias, Laurence Lorda, Simon Tardivel, Stephane Mary, Makoto Kunugi, Seiji Mitsuhashi, Alain Doressoundiram, Frederic Merlin, Sonia Fornasier, Jean-Michel Reess, Pernelle Bernardi, Shigeru Imai, Yasuyuki Ito, Hatsumi Ishida, Kiyoshi Kuramoto, Yasuhiro Kawakatsu
Summary: The paper discusses the science operations of the spacecraft and remote sensing instruments for the MMX mission, focusing on observations of Phobos and Deimos. The spacecraft will conduct detailed observations of the Martian moons from different altitudes, aiming to determine their origins and select landing sites for sample collection. Additionally, the spacecraft will perform multiple flybys to observe as much of Deimos' surface as possible.
EARTH PLANETS AND SPACE
(2021)
Article
Geosciences, Multidisciplinary
Kiyoshi Kuramoto, Yasuhiro Kawakatsu, Masaki Fujimoto, Akito Araya, Maria Antonietta Barucci, Hidenori Genda, Naru Hirata, Hitoshi Ikeda, Takeshi Imamura, Joern Helbert, Shingo Kameda, Masanori Kobayashi, Hiroki Kusano, David J. Lawrence, Koji Matsumoto, Patrick Michel, Hideaki Miyamoto, Tomokatsu Morota, Hiromu Nakagawa, Tomoki Nakamura, Kazunori Ogawa, Hisashi Otake, Masanobu Ozaki, Sara Russel, Sho Sasaki, Hirotaka Sawada, Hiroki Senshu, Shogo Tachibana, Naoki Terada, Stephan Ulamec, Tomohiro Usui, Koji Wada, Sei-ichiro Watababe, Shoichiro Yokota
Summary: Martian Moons Exploration (MMX) is a new sample return mission planned by JAXA, aiming to determine the origin of Phobos and Deimos, elucidate the early Solar System evolution, and explore the evolutionary processes of both moons and Mars surface environment. Through sample collection, observations, and flybys, MMX will achieve multiple scientific objectives.
EARTH PLANETS AND SPACE
(2022)
Article
Geosciences, Multidisciplinary
Tomohiro Takemura, Hideaki Miyamoto, Ryodo Hemmi, Takafumi Niihara, Patrick Michel
Summary: By studying high-resolution images of Phobos, we found significant variations in surface irregularities, but there is a high probability of finding smooth landing spots in larger areas on the surface.
EARTH PLANETS AND SPACE
(2021)
Article
Geosciences, Multidisciplinary
Hideaki Miyamoto, Takafumi Niihara, Koji Wada, Kazunori Ogawa, Hiroki Senshu, Patrick Michel, Hiroshi Kikuchi, Ryodo Hemmi, Tomoki Nakamura, Akiko M. Nakamura, Naoyuki Hirata, Sho Sasaki, Erik Asphaug, Daniel T. Britt, Paul A. Abell, Ronald-Louis Ballouz, Olivier S. Banouin, Nicola Baresi, Maria A. Barucci, Jens Biele, Matthias Grott, Hideitsu Hino, Peng K. Hong, Takane Imada, Shingo Kameda, Makito Kobayashi, Guy Libourel, Katsuro Mogi, Naomi Murdoch, Yuki Nishio, Shogo Okamoto, Yuichiro Ota, Masatsugu Otsuki, Katharina A. Otto, Naoya Sakatani, Yuta Shimizu, Tomohiro Takemura, Naoki Terada, Masafumi Tsukamoto, Tomohiro Usui, Konrad Willner
Summary: The MMX mission will study the Martian moons Phobos and Deimos, Mars, and their environments. This paper summarizes the team's evaluation of the surface environment of Phobos, including the characteristics of regolith and the development of simulated soil materials.
EARTH PLANETS AND SPACE
(2021)
Article
Geosciences, Multidisciplinary
Maria Antonietta Barucci, Jean-Michel Reess, Pernelle Bernardi, Alain Doressoundiram, Sonia Fornasier, Michel Le Du, Takahiro Iwata, Hiromu Nakagawa, Tomoki Nakamura, Yves Andre, Shohei Aoki, Takehiko Arai, Elisa Baldit, Pierre Beck, Jean-Tristan Buey, Elisabet Canalias, Matthieu Castelnau, Sebastien Charnoz, Marc Chaussidon, Frederic Chapron, Valerie Ciarletti, Marco Delbo, Bruno Dubois, Stephane Gauffre, Thomas Gautier, Hidenori Genda, Rafik Hassen-Khodja, Gilles Hervet, Ryuki Hyodo, Christian Imbert, Takeshi Imamura, Laurent Jorda, Shingo Kameda, Driss Kouach, Toru Kouyama, Takeshi Kuroda, Hiroyuki Kurokawa, Laurent Lapaw, Jeremie Lasue, Laetitia Le Deit, Aurelien Ledot, Cedric Leyrat, Bertrand Le Ruyet, Moe Matsuoka, Frederic Merlin, Hideaki Miyamoto, Frederic Moynier, Napoleon Nguyen Tuong, Kazunori Ogohara, Takahito Osawa, Jerome Parisot, Laurie Pistre, Benjamin Quertier, Sean N. Raymond, Francis Rocard, Takeshi Sakanoi, Takao M. Sato, Eric Sawyer, Feriel Tache, Sylvain Tremolieres, Fuminori Tsuchiya, Pierre Vernazza, Didier Zeganadin
Summary: The MMX infrared spectrometer (MIRS) is an imaging spectrometer designed to provide spectral maps of Phobos and Deimos for surface composition analysis, as well as study changes in Mars atmosphere. MIRS is a crucial instrument in achieving the scientific and measurement objectives of the MMX mission through collaboration with French laboratories and support from CNES, JAXA and MELCO.
EARTH PLANETS AND SPACE
(2021)
Article
Geosciences, Multidisciplinary
Shingo Kameda, Masanobu Ozaki, Keigo Enya, Ryota Fuse, Toru Kouyama, Naoya Sakatani, Hidehiko Suzuki, Naoya Osada, Hiroki Kato, Hideaki Miyamoto, Atsushi Yamazaki, Tomoki Nakamura, Takaya Okamoto, Takahiro Ishimaru, Peng Hong, Ko Ishibashi, Takeshi Takashima, Ryoya Ishigami, Cheng-Ling Kuo, Shinsuke Abe, Yuya Goda, Hajime Murao, Saori Fujishima, Tsubasa Aoyama, Keiji Hagiwara, Satoko Mizumoto, Noriko Tanaka, Kousuke Murakami, Miho Matsumoto, Kenji Tanaka, Hironobu Sakuta
Summary: The JAXA's MMX mission aims to uncover the origins of Phobos and Deimos by remotely observing and sampling them. The instruments like TENGOO and OROCHI will provide crucial geomorphological features and material distribution for site selection and sample analysis.
EARTH PLANETS AND SPACE
(2021)
Article
Engineering, Aerospace
Kosuke Kawakami, Shigeki Kaneko, Giwon Hong, Hideaki Miyamoto, Shinobu Yoshimura
Summary: For Mars exploration, the flapping-wing micro air vehicle (FWMAV) has attracted attention due to its high capability in the thin Martian atmosphere. However, the development of FWMAVs with flexible wings is complicated by the large-scale deformations caused by wing inertia and aerodynamic forces. This study investigates the relative contributions of inertial force and aerodynamic forces in the Martian atmosphere and develops an efficient computational analysis system for designing flexible flapping wings. Parametric studies are performed to determine the flight capabilities of FWMAVs in Martian environment.
Article
Multidisciplinary Sciences
Hiroyuki K. M. Tanaka, Masaatsu Aichi, Szabolcs Jozsef Balogh, Cristiano Bozza, Rosa Coniglione, Jon Gluyas, Naoto Hayashi, Marko Holma, Jari Joutsenvaara, Osamu Kamoshida, Yasuhiro Kato, Tadahiro Kin, Pasi Kuusiniemi, Giovanni Leone, Domenico Lo Presti, Jun Matsushima, Hideaki Miyamoto, Hirohisa Mori, Yukihiro Nomura, Naoya Okamoto, Laszlo Olah, Sara Steigerwald, Kenji Shimazoe, Kenji Sumiya, Hiroyuki Takahashi, Lee F. Thompson, Tomochika Tokunaga, Yusuke Yokota, Sean Paling, Dezso Varga
Summary: Researchers using the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector have detected meteotsunami-like periodic oscillation in the underwater highway, which provides valuable insights into understanding meteotsunamis.
SCIENTIFIC REPORTS
(2022)
Article
Astronomy & Astrophysics
Tatsuhiro Michikami, Axel Hagermann, Tomokatsu Morota, Yasuhiro Yokota, Seitaro Urakawa, Hiroyuki Okamura, Naoya Tanabe, Koki Yumoto, Tatsuki Ebihara, Yuichiro Cho, Carolyn M. Ernst, Masahiko Hayakawa, Masatoshi Hirabayashi, Naru Hirata, Chikatoshi Honda, Rie Honda, Shingo Kameda, Masanori Kanamaru, Hiroshi Kikuchi, Shota Kikuchi, Toru Kouyama, Moe Matsuoka, Hideaki Miyamoto, Takaaki Noguchi, Rina Noguchi, Kazunori Ogawa, Tatsuaki Okada, Naoya Sakatani, Sho Sasaki, Hirotaka Sawada, Chiho Sugimoto, Hidehiko Suzuki, Satoshi Tanaka, Eri Tatsumi, Akira Tsuchiyama, Yuichi Tsuda, Sei-ichiro Watanabe, Manabu Yamada, Makoto Yoshikawa, Kazuo Yoshioka, Seiji Sugita
Summary: This study investigates the shape distribution of blocks on asteroid Ryugu through measurements and observations. The results show that the shape distributions of smaller blocks are consistent with laboratory impact fragment shape distributions, suggesting that they were formed through impact fragmentation. Additionally, larger blocks in the equatorial region appear slightly flatter, possibly due to burial in a layer of regolith.
Article
Geosciences, Multidisciplinary
M. Kobayashi, H. Miyamoto, B. D. Pal, T. Niihara, T. Takemura
Summary: The mapping of water-ice is important in lunar exploration missions, and ground penetrating radars can be used to do so. The electromagnetic properties, specifically the permittivity, can indicate the existence of water-ice. Our research aims at reducing false detection or overlooking of water-ice by considering certain conditions that previous researches did not cover. We find that the permittivity of lunar regolith decreases at low temperatures, which is similar to the permittivity of water-ice.
EARTH PLANETS AND SPACE
(2023)