Article
Geography, Physical
Alexandra Bregman, Jasper Knight
Summary: The study of a large blockstream in the Maloti-Drakensberg mountain range reveals that it is a relict feature with debris possibly derived from multiple sources, showing different ages and/or sources within different parts. The presence of arcuate flow lobes suggests phases of slope-driven boulder movement controlled by active-layer processes and cryoturbation. The relative age data from Schmidt hammer analysis indicates a late Quaternary age, possibly from the local last glacial maximum, with potential younger Holocene phases of activity.
QUATERNARY INTERNATIONAL
(2022)
Article
Geosciences, Multidisciplinary
Julian Martin, Bethan J. Davies, Richard Jones, Varyl Thorndycraft
Summary: This study investigates the sensitivity of glacier mass balance, velocity, and ice thickness in Patagonia to climate change, using the Parallel Ice Sheet Model. The results provide insights into present-day glacier properties and dynamics, as well as the controls on ice cap deglaciation. Additionally, the study explores the palaeoclimatic envelope for glacial advances during the Last Glacial-Interglacial Transition and Holocene in Patagonia.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geography, Physical
Ann Rowan, David L. Egholm, Chris D. Clark
Summary: Glacial landscapes serve as valuable archives of terrestrial paleoclimate change, with moraines playing a significant role in recording these changes. However, the complex dynamics of glaciers, including response time and mountainous topography, make moraines a less straightforward indicator of glacier change in response to climate change. By using a glacial landscape evolution model, researchers found that the rate of climate change relative to glacier response time determines the geometry, number, and position of moraines.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Geosciences, Multidisciplinary
Sebastian Luning, Mariusz Galka, Florencia Paula Bamonte, Felipe Garcia-Rodriguez, Fritz Vahrenholt
Summary: This study evaluates the retreat of a glacier in the Peruvian Cordillera Blanca over the past century and attributes it to anthropogenic warming. However, the numerical models used in the study fail to replicate the historical temperature and glacier changes, casting doubt on the attribution results.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2022)
Article
Evolutionary Biology
Jody M. Taft, Bryan Maritz, Krystal A. Tolley
Summary: Climate shifts during the Quaternary Period have influenced the population structure and evolution of Psammophis snakes in southern Africa, with genetic analyses suggesting that the P. leightoni complex likely represents a single species. Paleontological modeling also indicates varying levels of connectivity between these taxa, supporting the proposal to synonymize the three species.
Article
Geochemistry & Geophysics
Alex Farnsworth, Paul J. Valdes, Robert A. Spicer, Lin Ding, Caitlyn Witkowski, Vittoria Lauretano, Tao Su, Shufeng Li, Shihu Li, Zhekun Zhou
Summary: Quantifying changes in land surface height is crucial for understanding Earth processes, but uncertainties in elevation reconstructions largely stem from unconstrained thermal lapse rates. Using paleoclimate models can reduce and quantify uncertainties, improving predictive skill in estimating elevation changes.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Ecology
Frederico Mestre, Soraia Barbosa, Jose A. Garrido-Garcia, Ricardo Pita, Antonio Mira, Paulo C. Alves, Joana Pauperio, Jeremy B. Searle, Pedro Beja
Summary: This study aims to reconstruct the glacial refugial history and demographic changes of the Cabrera vole by integrating complementary methods in ecology, genomics, and palaeobiology. The results suggest northern Iberian glacial refugia for the species, despite higher fossil abundance in southern and eastern Iberia and southern France. Integrative approaches are essential to accurately depict historical refugial areas and range dynamics.
JOURNAL OF BIOGEOGRAPHY
(2022)
Article
Geosciences, Multidisciplinary
Samuel J. Cook, Guillaume Jouvet, Romain Millan, Antoine Rabatel, Harry Zekollari, Ines Dussaillant
Summary: By utilizing satellite remote-sensing data and a deep-learning model, we have successfully simulated the evolution of glaciers in the European Alps and found that by 2050, the ice loss will exceed one-third of the current ice volume.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Ecology
Jun Ying Lim, Huasheng Huang, Alexander Farnsworth, Daniel J. Lunt, William J. Baker, Robert J. Morley, W. Daniel Kissling, Carina Hoorn
Summary: The study evaluates the impact of Cenozoic climate change on the diversity and biogeography of tropical plants by analyzing fossil pollen records of four palm clades. The research finds that global pollen taxonomic diversity of most palm lineages declined throughout the Cenozoic, with geographical ranges contracting globally and experiencing regional extinctions, particularly after the Miocene. However, climatic niche models predict the presence of suitable habitat in areas where these lineages went extinct, suggesting that global climatic trends play a significant role in shaping the diversity and range contractions of megathermal plant taxa.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2022)
Article
Geography, Physical
Lukas Mueller, Martin Horwath, Mirko Scheinert, Christoph Mayer, Benjamin Ebermann, Dana Floricioiu, Lukas Krieger, Ralf Rosenau, Saurabh Vijay
Summary: The marine-terminating glacier Harald Moltke Bre in north-western Greenland exhibits episodic surges with a pronounced seasonality. The recent surge from 2013 to 2019 lasted longer than previous surges and was preceded by rapid frontal retreat and thinning at the glacier front. The seasonally modulated surge behavior may be caused by a transition to a more efficient subglacial system, with surges initiated at the terminus and developing through up-glacier ice flow acceleration.
Article
Geography, Physical
Marcia Phillips, Chasper Buchli, Samuel Weber, Jacopo Boaga, Mirko Pavoni, Alexander Bast
Summary: A novel combination of borehole temperature, borehole piezometer and cross-borehole electrical resistivity tomography (ERT) data is used to investigate changing ice and/or water contents in the Schafberg rock glacier. The measurement techniques presented continuously monitor temporal and spatial phase changes to a depth of 12 m and should provide the basis for a better understanding of accelerating rock glacier kinematics and future water availability.
Article
Geosciences, Multidisciplinary
Hanning Chen, Eric Rignot, Bernd Scheuchl, Shivani Ehrenfeucht
Summary: We used Sentinel-1 radar interferometry data from 2018 to study the grounding line position of three glaciers in East Antarctica. These glaciers lose about 47 billion tons of ice per year. We found kilometer-scale tidal migration, larger than expected, and not in sync with oceanic tide changes. In estuaries with subglacial channels, we observed two states of migration that switch on and off over several weeks, and the vertical motion revealed a water column thickness of 2-20 cm. This intrusion of seawater into wide grounding zones is not considered in current models, but it can lead to increased melting and mass loss of glaciers due to ocean warming.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Sugang Zhou, Xiaojun Yao, Dahong Zhang, Yuan Zhang, Shiyin Liu, Yufang Min
Summary: Advancing glaciers in the Tien Shan region have been identified using Landsat remote sensing images from 1990 to 2019, with a total of 48 glaciers advancing, including 10 surging glaciers. Among the 34 terminal advancing glaciers, there were 169 advances recorded, with July being the month with the highest number of advancing and surging occurrences. The surge cycle in the Tien Shan region is longer than in other high latitude regions in Asia, lasting about 35-60 years, and may be influenced by a combination of thermal and hydrological factors.
Article
Multidisciplinary Sciences
Nzola John Ndongala, Callixtina Maepa, Emmanuel Nyondo, Alain Amstutz, Baptiste du Reau de la Gaignonniere
Summary: This study analyzed echocardiography data from a referral hospital in rural Lesotho to investigate the occurrence, characteristics, and etiology of heart failure and heart diseases. The results showed that hypertension is the leading cause of heart disease in this setting, while chronic pulmonary diseases were unexpectedly common.
Article
Engineering, Civil
S. Brighenti, M. Engel, R. Dinale, W. Tirler, G. Voto, F. Comiti
Summary: Glaciers and rock glaciers play important roles in mountain hydrological systems, but their effects on the chemical and isotopic conditions of streams have been overlooked. This study examined stream sections in two catchments in the Italian Alps and found that different water sources contribute to stream runoff. Snowmelt and rainwater were the largest and smallest components, respectively, while ice melt was significant in streams fed by glaciers and rock glaciers. The presence of rock glaciers can complicate the isotopic and chemical signatures of glaciers, making hydrograph separation challenging.
JOURNAL OF HYDROLOGY
(2023)
Article
Geography, Physical
Clare M. Boston, Sven Lukas, Simon J. Carr
QUATERNARY SCIENCE REVIEWS
(2015)
Article
Geography, Physical
Jacob M. Bendle, Adrian P. Palmer, Simon J. Carr
QUATERNARY SCIENCE REVIEWS
(2015)
Article
Multidisciplinary Sciences
Matteo Spagnolo, Emrys Phillips, Jan A. Piotrowski, Brice R. Rea, Chris D. Clark, Chris R. Stokes, Simon J. Carr, Jeremy C. Ely, Adriano Ribolini, Wojciech Wysota, Izabela Szuman
NATURE COMMUNICATIONS
(2016)
Article
Geology
Simon J. Carr, John F. Hiemstra, Geraint Owen
PROCEEDINGS OF THE GEOLOGISTS ASSOCIATION
(2017)
Article
Environmental Sciences
Kate L. Spencer, Simon J. Carr, Lucy M. Diggens, James A. Tempest, Michelle A. Morris, Gemma L. Harvey
SCIENCE OF THE TOTAL ENVIRONMENT
(2017)
Article
Engineering, Geological
Howard F. Taylor, Catherine O'Sullivan, Way Way Sim, Simon J. Carr
SOILS AND FOUNDATIONS
(2017)
Article
Geography, Physical
Emrys Phillips, Carol Cotterill, Kirstin Johnson, Kirstin Crombie, Leo James, Simon Carr, Astrid Ruiter
QUATERNARY SCIENCE REVIEWS
(2018)
Article
Geography, Physical
Emrys Phillips, Matteo Spagnolo, Alasdair C. J. Pilmer, Brice R. Rea, Jan A. Piotrowski, Jeremy C. Ely, Simon Carr
QUATERNARY SCIENCE REVIEWS
(2018)
Article
Water Resources
T. Matthews, R. Hodgkins, R. L. Wilby, S. Gudmundsson, F. Palsson, H. Bjoernsson, S. Carr
HYDROLOGICAL PROCESSES
(2015)
Article
Meteorology & Atmospheric Sciences
R. Hodgkins, S. Carr, F. Palsson, S. Gudomundsson, H. Bjornsson
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2013)
Article
Environmental Sciences
Jonathan Dale, Andrew B. Cundy, Kate L. Spencer, Simon J. Carr, Ian W. Croudace, Heidi M. Burgess, David J. Nash
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Geography, Physical
Helen Brooks, Iris Moller, Simon Carr, Clementine Chirol, Elizabeth Christie, Ben Evans, Kate L. Spencer, Tom Spencer, Katherine Royse
Summary: Salt marshes deliver important ecosystem services, but are facing net losses globally and regionally. The ability of salt marshes to persist in a location depends on the resistance of their substrates to hydrodynamic forces, which is an area of ongoing research. Future studies are needed to systematically quantify marsh substrate properties and understand their interactions with erosion processes to better predict marsh evolution under future hydrodynamic forcing scenarios.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Environmental Sciences
Simon J. Carr, Lucy M. Diggens, Kate L. Spencer
JOURNAL OF SOILS AND SEDIMENTS
(2020)
Article
Oceanography
Jonathan A. T. Wheatland, Kate L. Spencer, Ian G. Droppo, Simon J. Carr, Andrew J. Bushby
CONTINENTAL SHELF RESEARCH
(2020)
Article
Soil Science
Clementine Chirol, Simon J. Carr, Kate L. Spencer, Iris Moeller
Summary: The study applies X-ray Computed Microtomography to analyze the spatial structure of wetland soils, improving the detection of organic matter elements and providing detailed segmentation of pores, live roots, and necromass at a high spatial resolution. The interactions between pores and organic matter in the soil are identified, opening possibilities for applications in determining key wetland soil functions such as soil cohesivity, nutrient exchanges, and carbon dynamics.