Article
Astronomy & Astrophysics
K. E. Williams, C. M. Dundas, M. A. Kahre
Summary: In this study, the ice ablation rates of mid-latitude scarps on Mars were modeled. The orientation and growth of these scarps can be explained by energy balance models, given certain characteristics of their geographic setting.
Article
Environmental Sciences
Joshua M. Williams, Louis A. Scuderi, Horton E. Newsom
Summary: By quantifying the morphology of rock glacier-like features on Mars, researchers suggest that these forms may have a possible rock glacier origin from the northern slopes of Aeolis Mons, showing characteristics similar to active terrestrial rock glaciers and possible influence from aeolian reworking.
Article
Geochemistry & Geophysics
Peter E. Martin, Kenneth A. Farley, Charles A. Malespin, Paul R. Mahaffy, Kenneth S. Edgett, Sanjeev Gupta, William E. Dietrich, Michael C. Malin, Kathryn M. Stack, Paulo M. Vasconcelos
Summary: Experiments on Mount Sharp in Gale crater on Mars show that the rock layers have been removed over the past billion years, suggesting that Mount Sharp likely formed during the Hesperian period.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Correction
Multidisciplinary Sciences
Elwyn de la Vega, Thomas B. Chalk, Paul A. Wilson, Ratna Priya Bysani, Gavin L. Foster
Summary: The original version of the article contained mistakes.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
David D. Parrish, Richard G. Derwent, Johannes Staehelin
Summary: The HTAP and TOAR programs analyzed historical ozone measurements and compared them with recent measurements, revealing a long-term increase in tropospheric ozone concentrations in the northern mid-latitudes during the 20th century. However, the two studies differed in their assessment of the magnitude of this increase, particularly in terms of baseline ozone concentrations.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Yuanyuan Han, Fei Xie, Fei Cui, Feiyang Wang, Xin Li, Wuhu Feng
Summary: Using satellite observations and a chemical transport model, this study reveals two extreme change events for HCl and N2O in the Northern Hemisphere mid-latitude middle and lower stratosphere over past decades, which are closely related to anomalous residual circulation caused by the joint effects of the strong easterly phase of the semi-annual oscillation and the strong polar vortex.
Article
Environmental Sciences
Daniel M. Westervelt, Arlene M. Fiore, Colleen B. Baublitz, Gustavo Correa
Summary: This study simulated the impact of reducing regional sulfur dioxide emissions, finding that emissions reductions in different regions would affect atmospheric oxidation reactions, climate, and air quality metrics, especially in the Northern Hemisphere free troposphere.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Geochemistry & Geophysics
K. S. Paul, H. Haralambous, C. Oikonomou, A. K. Singh, T. L. Gulyaeva, V. A. Panchenko, D. Altadill, D. Buresova, J. Mielich, T. Verhulst
Summary: This study presents a three-year investigation into the diurnal and seasonal characteristics of nighttime spread F over eight Digisonde European stations. The results highlight significant seasonal differences between higher and lower latitude stations, consistent with previous studies. Additionally, the study attempts to correlate spread F activity and Travelling Ionospheric Disturbances (TID) using GPS detrended TEC maps, revealing that nearby stations exhibit similar spread F activity, suggesting a common TID influence.
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
(2023)
Article
Environmental Sciences
Wei Gu, Li -Juan Chen, Yong-Guang Wang, Hui Gao, Lin Wang, Yu-Yun Liu
Summary: Frequent heavy precipitation and severe flood disasters occurred in northern China in autumn 2021. The extreme events were directly caused by the northwestward location of the western Pacific subtropical high, influenced by the developing La Nina and warmer than normal tropical Atlantic sea surface temperature, as well as the active convection over the tropical western Pacific and eastern Indian Ocean.
ADVANCES IN CLIMATE CHANGE RESEARCH
(2022)
Article
Geography, Physical
Zhiyong Ding, Ruijie Lu, Xiaokang Liu, Dongxue Chen
Summary: Substantial evidence from the Late Quaternary indicates that aeolian-sand landscapes are formed and evolved through the interaction between regional aeolian and fluvial-lacustrine activity. Fluvial-aeolian interplay in many deserts is responsive to monsoonal precipitation and linked to atmospheric CO2 and variations in insolation. However, the patterns of this interplay and its relationship with climate change are not always consistent during the Late Pleistocene. Studies on fluvial-aeolian interplay in the Mu Us Desert during the Last Glacial Period are lacking, hindering our understanding of the dynamics of aeolian and fluvial-lacustrine landscapes. This study provides a comprehensive analysis of fluvial-lacustrine and aeolian strata in the Mu Us Desert during the Last Glacial Period, revealing the spatial and temporal patterns of their development and their relationship with changes in climate.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Meteorology & Atmospheric Sciences
Shuangze Han
Summary: This study finds a linkage between the wintertime atmospheric circulation in mid-latitude Eurasia and spring Asian snow cover. The primary atmospheric mode in mid-latitude Eurasia during winter is associated with positive snow cover anomalies in northern East Asia in the following spring. This mode leads to upward propagation of the zonal wavenumber-1 component in the stratosphere and creates abnormal stratospheric warming, leading to a weaker polar vortex and increased snowfall in the region. This connection can also be reproduced in historical simulations of CMIP6 coupled models and shows potential for predicting spring snow cover in northern East Asia.
ATMOSPHERIC RESEARCH
(2023)
Article
Astronomy & Astrophysics
Michael H. Stevens, Cora E. Randall, Justin N. Carstens, David E. Siskind, John P. McCormack, David D. Kuhl, Manbharat S. Dhadly
Summary: Recent advances in data processing from the NASA Aeronomy of Ice in the Mesosphere satellite's Cloud Imaging and Particle Size (CIPS) instrument allow the observation of bright mesospheric clouds at mid-latitudes. The frequency of these clouds in the northern hemisphere shows no trend from 2007 to 2021 and no dependence on the solar cycle, but extreme interannual variability. This study investigates the possible link between these clouds and the propellant exhaust from orbital vehicles launched at lower latitudes. The analysis suggests that space traffic has a strong influence on the interannual variability of these bright mesospheric clouds.
EARTH AND SPACE SCIENCE
(2022)
Article
Astronomy & Astrophysics
G. A. Morgan, N. E. Putzig, M. R. Perry, H. G. Sizemore, A. M. Bramson, E. I. Petersen, Z. M. Bain, D. M. H. Baker, M. Mastrogiuseppe, R. H. Hoover, I. B. Smith, A. Pathare, C. M. Dundas, B. A. Campbell
Summary: Multiple nations and private entities are working towards landing humans on Mars by utilizing Martian water-ice deposits for fuel production. The challenge lies in isolating accessible ice deposits within regions that optimize other preferred landing-site conditions. Through the SWIM project, they aim to determine the most likely regions for near-surface ice presence in the northern mid-latitudes.
Article
Geosciences, Multidisciplinary
Xianqiang Meng, Lianwen Liu, Xiaodong Miao, Wancang Zhao, Enlou Zhang, Junfeng Ji
Summary: A high-resolution East Asian summer monsoon (EASM) precipitation record from North China over the past 720 kyr shows periodicity supporting the hypothesis of high-latitude climate forcing, with Arctic perennial sea ice playing a significant role in decreasing EASM precipitation during post-Mid-Brunhes Transition interglacials. Additionally, EASM intensity during warm Marine Isotope Stages is related to moisture transport from the warming tropical ocean.
Article
Environmental Sciences
Judah Cohen, Laurie Agel, Mathew Barlow, Dara Entekhabi
Summary: The impact of Arctic amplification on mid-latitude cold extremes remains unclear, with inconsistent trends observed in the US and Asia, and a decreasing trend in occurrence observed in Europe. This highlights the need for a better understanding of the physical links between Arctic amplification and mid-latitude cold extremes.
COMMUNICATIONS EARTH & ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Joseph S. Levy, Tammy M. Rittenour, Andrew G. Fountain, Jim E. O'Connor
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2017)
Article
Geography, Physical
Zachary Sudman, Michael N. Gooseff, Andrew G. Fountain, Joseph S. Levy, Maciej K. Obryk, David Van Horn
Article
Geography, Physical
Logan M. Schmidt, Joseph S. Levy
Article
Geochemistry & Geophysics
J. S. Levy, C. I. Fassett, L. X. Rader, I. R. King, P. M. Chaffey, C. M. Wagoner, A. E. Hanlon, J. L. Watters, M. A. Kreslavsky, J. W. Holt, A. T. Russell, M. D. Dyar
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2018)
Article
Geography, Physical
J. S. Levy, A. G. Fountain, M. K. Obryk, J. Telling, C. Glennie, R. Pettersson, M. Gooseff, Dj. Van Horn
Article
Geosciences, Multidisciplinary
Eric Ivan Petersen, John W. Holt, Joseph S. Levy
GEOPHYSICAL RESEARCH LETTERS
(2018)
Article
Geology
YeJin Lim, Joseph S. Levy, Timothy A. Goudge, Wonsuck Kim
Article
Astronomy & Astrophysics
Daniel S. Aylward, Logan M. Schmidt, Joseph S. Levy
PLANETARY AND SPACE SCIENCE
(2019)
Article
Environmental Sciences
Joseph S. Levy, Jessica T. E. Johnson
Summary: The newly developed CRWI soil moisture index can effectively determine soil moisture content through hyperspectral imaging, regardless of soil composition and grain size. Compared to other indices, CRWI shows a stronger correlation with surface soil moisture and can be utilized for monitoring soil moisture in desert environments.
Article
Environmental Sciences
Tyler M. Meng, Roberto Aguilar, Michael S. Christoffersen, Eric I. Petersen, Christopher F. Larsen, Joseph S. Levy, John W. Holt
Summary: This study uses high-resolution remote sensing imagery and photogrammetric data to automatically measure the horizontal surface displacement and estimate the vertical surface changes of four North American rock glaciers. The study provides insights into the age of glacier formation and the current surface changes.
Article
Geography, Physical
Tobias Linhardt, Joseph S. Levy, Christoph K. Thomas
Proceedings Paper
Astronomy & Astrophysics
T. De Haas, S. J. Conway, F. E. G. Butcher, J. Levy, P. M. Grindrod, T. A. Goudge, M. R. Balme
MARTIAN GULLIES AND THEIR EARTH ANALOGUES
(2019)
Proceedings Paper
Astronomy & Astrophysics
James L. Dickson, James W. Head, Joseph S. Levy, Gareth A. Morgan, David R. Marchant
MARTIAN GULLIES AND THEIR EARTH ANALOGUES
(2019)
Article
Geochemistry & Geophysics
R. V. Gough, J. Wong, J. L. Dickson, J. S. Levy, J. W. Head, D. R. Marchant, M. A. Tolbert
EARTH AND PLANETARY SCIENCE LETTERS
(2017)
Article
Geosciences, Multidisciplinary
Andrew G. Fountain, Juan C. Fernandez-Diaz, Maciej Obryk, Joseph Levy, Michael Gooseff, David J. Van Horn, Paul Morin, Ramesh Shrestha
EARTH SYSTEM SCIENCE DATA
(2017)