Article
Geography, Physical
Dag Ottesen, Christine L. Batchelor, Lilja R. Bjarnadottir, Daniel Hesjedal Wiberg, Julian A. Dowdeswell
Summary: The analysis of glacial landforms on continental margins provides insights into sedimentation processes beneath ice sheets and aids predictions of future ice sheet resilience. This study used high-resolution marine-geophysical data to map and interpret glacial landforms along the mid-Norwegian margin, revealing the dynamic behavior of the Scandinavian Ice Sheet during the last glacial-interglacial cycle. The geometry of the continental shelf played a key role in controlling the pattern of ice-sheet retreat.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Ryouta O'ishi, Wing-Le Chan, Ayako Abe-Ouchi, Sam Sherriff-Tadano, Rumi Ohgaito, Masakazu Yoshimori
Summary: The study conducted three sets of experiments using different versions of the MIROC model to investigate the Last Interglacial (LIG) and pre-industrial conditions. Results show that only the MIROC4m-LPJ model, which includes dynamic vegetation feedback, exhibits annual warming signals at northern high latitudes, while the latest Earth system model MIROC-ES2L does not, highlighting the importance of full vegetation feedback for accurately simulating strong annual warming in northern high latitudes.
CLIMATE OF THE PAST
(2021)
Letter
Geosciences, Multidisciplinary
N. Jullien, A. J. Tedstone, H. Machguth, N. B. Karlsson, V. Helm
Summary: We analyzed airborne accumulation radar data from 2002 to 2018 to investigate changes in the extent and thickness of ice slabs in Greenland. It was found that ice slabs several meters thick were already present before 2002. Between 2012 and 2018, the ice slabs expanded inland by 13,400-17,600 km(2), or 37%-44%. The study also demonstrated that the extremely warm summer of 2012 led to the formation of near-surface ice layers at higher elevations, enabling the development of ice slabs with only moderate melting in subsequent summers.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geography, Physical
Qing Yan, Ting Wei, Zhongshi Zhang
Summary: Investigation of Patagonian glaciers during the Last Glacial Maximum (gLGM) reveals the sensitivity of these glaciers to climate change. The study shows that temperature and precipitation have significant impacts on the total glacier area and equilibrium-line altitude of Patagonian glaciers. The modeled ice sheet extent and flow pattern during the gLGM match well with empirical reconstructions.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
A. M. Solgaard, D. Rapp, B. P. Y. Noel, C. S. Hvidberg
Summary: This study analyzed high-resolution ice velocity data of the Greenland Ice Sheet using a clustering algorithm and identified characteristic seasonal flow patterns. The results showed spatial and interannual variability in these flow patterns, which are linked to water availability at the base of the ice.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geography, Physical
Jing Lei, Zhengguo Shi, Xiaoning Xie, Xinzhou Li
Summary: Based on climate model experiments, this study found that the precipitation during the Last Glacial Maximum (LGM) was significantly different from that of the preindustrial period in the terrestrial monsoon regions and arid regions of the Northern Hemisphere. The decrease in sea surface temperature and expansion of the ice sheet were the main contributors to lessening precipitation in the monsoon regions, while the decrease in precipitation in the arid regions can be mainly attributed to ice-sheet-induced albedo and topography changes.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Asmita Banerjee, Laurence Y. Yeung, Lee T. Murray, Xin Tie, Jessica E. Tierney, Allegra N. Legrande
Summary: Ice cores and other paleotemperature proxies provide information about past surface temperatures, but little is known about high-altitude temperatures. This study uses the clumped-isotope composition of molecular oxygen in ice cores to infer that the upper troposphere was 6-9 degrees C cooler during the Last Glacial Maximum than during the late preindustrial Holocene.
Article
Geosciences, Multidisciplinary
Yue Li, Yougui Song, Xinzhou Li, Dimitris G. Kaskaoutis, Hamid Gholami, Yudong Li
Summary: Based on the dust record of the NGRIP ice core, this study investigates the changes in Greenland ice core dust concentration during the last glacial period. The results show that the dust primarily came from Asian sources (71.5%), with contributions from North Africa (10%) and Eastern Europe (11.7%). The study also highlights the important role of aeolian activity and atmospheric transport efficiency in driving the Greenland dust concentration changes.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
S. Wetterich, H. Meyer, M. Fritz, G. Mollenhauer, J. Rethemeyer, A. Kizyakov, L. Schirrmeister, T. Opel
Summary: Stable isotopes of wedge ice can help reconstruct past winter climate conditions. Records from Bol'shoy Lyakhovsky Island show that the LGM and MIS 3 had colder winter climates, while the moisture sources were similar during MIS 2.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Liangqing Cheng, Yougui Song, Yubin Wu, Yonggang Liu, Huifang Liu, Hong Chang, Xiulan Zong, Shugang Kang
Summary: This study analyzed 143 loess OSL ages from Central Asia, finding that dust accumulation during the late Last Glacial Maximum was greater than during the early LGM. The temporal variability of dust accumulation in Central Asia is similar to that of the Chinese Loess Plateau, both following precession. However, in Greenland, dust accumulation was stronger during the early LGM, following obliquity.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Ming Zhang, Yonggang Liu, Jiang Zhu, Zhuoqun Wang, Zhengyu Liu
Summary: In this study, we investigated the changes in climate and Atlantic Meridional Overturning Circulation (AMOC) during the Last Glacial Maximum if there were no dust. Model simulations showed that the removal of dust resulted in a global cooling and weakening of AMOC. This cooling effect was opposite to that observed during the mid-Holocene and was amplified by a positive feedback between sea ice and AMOC.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Alicia Vasquez, Valentina Flores-Aqueveque, Esteban Sagredo, Rodrigo Hevia, Rodrigo Villa-Martinez, Patricio I. Moreno, Jose L. Antinao
Summary: The evolution and age of large ice-dammed lakes along the eastern margin of the Patagonian Ice Sheet were studied, providing valuable insights into fluctuations of the shrinking ice sheet, isostatic adjustments, and climate forcing.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Meteorology & Atmospheric Sciences
Zhiang Xie, Li Dong, Kaijun Liu
Summary: The study investigates the changes in tropospheric stratification during the Last Glacial Maximum (LGM) using numerical simulations. The results show a decrease in stability in the tropics and an increase in stability in the extratropics during certain seasons. The increased stability over high-latitude ocean is driven by shifts in surface frozen lines, while the stability over ice sheet margins is due to the cooling effect of ice sheet slopes.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Geography, Physical
Joseph Mallalieu, Jonathan L. Carrivick, Duncan J. Quincey, Cassandra L. Raby
Summary: In southwest Greenland, there has been an extended and accelerating phase of ice-margin recession since 1992. Ice-marginal lakes exhibit significant correlations with rates of ice-margin recession, suggesting they play a key role in driving mass loss and ice-margin recession at the Greenland Ice Sheet. Further research is needed to understand the causal connections between ice-marginal lake evolution and enhanced ice-margin recession in order to accurately forecast the response of the ice sheet to changing environmental conditions.
GLOBAL AND PLANETARY CHANGE
(2021)
Review
Geography, Physical
Linda Pan, Glenn A. Milne, Konstantin Latychev, Samuel L. Goldberg, Jacqueline Austermann, Mark J. Hoggard, Jerry X. Mitrovica
Summary: This study investigates the impact of lateral variations in Earth structure on predicting far-field sea level and global ice volume estimates at the Last Glacial Maximum. The findings suggest that different Earth model parameters significantly affect the estimates at far-field sites, but no consistent signal is found to reconcile the differences in ice volume estimates.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geography, Physical
Jonathan L. Carrivick, Bethan J. Davies, William H. M. James, Malcolm McMillan, Neil F. Glasser
GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY
(2019)
Article
Geosciences, Multidisciplinary
Mike Walker, Phil Gibbard, Martin J. Head, Max Berkelhammer, Svante Bjorck, Hai Cheng, Les C. Cwynar, David Fisher, Vasilios Gkinis, Antony Long, John Lowe, Rewi Newnham, Sune Olander Rasmussen, Harvey Weiss
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA
(2019)
Article
Geology
Daniel Paul Le Heron, Thomas Matthew Vandyk, Hongwei Kuang, Yongqing Liu, Xiaoshuai Chen, Yuchong Wang, Zhenrui Yang, Lars Scharfenberg, Bethan Davies, Graham Shields
Article
Geography, Physical
Mike Walker, Martin J. Head, John Lowe, Max Berkelhammer, Svante Bjorck, Hai Cheng, Les C. Cwynar, David Fisher, Vasileios Gkinis, Antony Long, Rewi Newnham, Sune Olander Rasmussen, Harvey Weiss
JOURNAL OF QUATERNARY SCIENCE
(2019)
Article
Geography, Physical
Anders E. Carlson, Andrea Dutton, Antony J. Long, Glenn A. Milne
QUATERNARY SCIENCE REVIEWS
(2019)
Article
Geosciences, Multidisciplinary
T. M. Vandyk, G. Wu, B. J. Davies, Y. Xiao, M. Li, G. A. Shields, D. P. Le Heron
PRECAMBRIAN RESEARCH
(2019)
Article
Geography, Physical
Robert G. Scaife, Antony J. Long, Alistair J. Monteath, Paul D. M. Hughes, Michael J. Bentley, Philip Stone
JOURNAL OF QUATERNARY SCIENCE
(2019)
Article
Geosciences, Multidisciplinary
W. R. Gehrels, S. Dangendorf, N. L. M. Barlow, M. H. Saher, A. J. Long, P. L. Woodworth, C. G. Piecuch, K. Berk
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Multidisciplinary Sciences
W. W. Immerzeel, A. F. Lutz, M. Andrade, A. Bahl, H. Biemans, T. Bolch, S. Hyde, S. Brumby, B. J. Davies, A. C. Elmore, A. Emmer, M. Feng, A. Fernandez, U. Haritashya, J. S. Kargel, M. Koppes, P. D. A. Kraaijenbrink, A. V. Kulkarni, P. A. Mayewski, S. Nepal, P. Pacheco, T. H. Painter, F. Pellicciotti, H. Rajaram, S. Rupper, A. Sinisalo, A. B. Shrestha, D. Viviroli, Y. Wada, C. Xiao, T. Yao, J. E. M. Baillie
Article
Geography
Stephen J. A. Jennings, Bethan J. Davies, Daniel Nyvlt, Neil F. Glasser, Zbynek Engel, Filip Hrbacek, Jonathan L. Carrivick, Bedrich Mlcoch, Michael J. Hambrey
Summary: This study presents a geomorphological map of the northern sector of Ulu Peninsula, James Ross Island, Antarctic Peninsula, covering an area of approximately 250 km(2). The landscape features are influenced by Cretaceous sedimentary and Neogene volcanic geology, sculpted by ice masses during glacial periods. The study area can be broadly separated into three geomorphological sectors dominated by glacierised, paraglacial, and periglacial processes.
Article
Environmental Studies
Robert J. Nicholls, Susan E. Hanson, Jason A. Lowe, Aimee B. A. Slangen, Thomas Wahl, Jochen Hinkel, Antony J. Long
Summary: This paper discusses the impact of new sea-level rise information on coastal risk and adaptation assessments, emphasizing the importance of regular review and update of assessments, as well as highlighting the uncertainty of high-end sea-level response and long-term decision-making.
WILEY INTERDISCIPLINARY REVIEWS-CLIMATE CHANGE
(2021)
Article
Geography
Emma-Louise Cooper, Varyl R. Thorndycraft, Bethan J. Davies, Adrian P. Palmer, Juan-Luis Garcia
Summary: The study maps the glacial geomorphology of the former Patagonian Ice Sheet between 44 degrees S and 46 degrees S, covering a region of approximately 50,000 km(2). More than 70,000 individual landforms were mapped, classified into different groups based on their characteristics, which will inform future interpretations of regional glacier dynamics and geochronological datasets.
Article
Geography, Physical
Bethan Davies, Jacob Bendle, Jonathan Carrivick, Robert McNabb, Christopher McNeil, Mauri Pelto, Seth Campbell, Tom Holt, Jeremy Ely, Bradley Markle
Summary: Mountain glaciers and ice caps are losing significant amounts of ice globally, with Alaska contributing greatly to sea-level rise. This study focuses on Alaskan plateau icefields and their vulnerability to climate change. The researchers conducted an inventory of glaciers and lakes in the Juneau Icefield region, finding that 63 glaciers disappeared since 2005, with a 10.0% reduction in glacier area. The study also presents the first structural glaciological and geomorphological map of an entire icefield in Alaska, showing widespread glacier disconnections and continuous recession since the Little Ice Age. The findings highlight the importance of considering glacier disconnections when evaluating icefield vulnerability to climate change.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Geography, Physical
Julian R. V. Martin, Varyl R. Thorndycraft, Bethan J. Davies, Angel Rodes
Summary: Mid-latitude Patagonian glaciers in the Southern Hemisphere are sensitive to changes in the ocean-atmospheric climate system. This study investigates the retreat of glaciers during a period of rapid warming after the Antarctic Cold Reversal. The results show that the glaciers receded by 31.7 km at an average rate of 35.2 m/yr.
JOURNAL OF QUATERNARY SCIENCE
(2023)
Article
Geography, Physical
Clare M. Boston, Benjamin M. P. Chandler, Harold Lovell, Paul Weber, Bethan J. Davies
Summary: This study investigates the relationship between topography and glacier response to climate change. It examines the geomorphological and sedimentological evidence in the foreland of Fingerbreen, and identifies various processes of landform generation that are influenced by topography. The research highlights the importance of considering topography when interpreting moraine records in the context of climate and glacier dynamics.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)