Article
Geography, Physical
Lukas Rettig, Sven Lukas, Matthias Huss
Summary: This study investigates the formation processes, preservation potential, and climatic significance of annually formed moraine ridges in the foreland of Gorner-gletscher, Switzerland. The results show that the formation of ice-marginal moraines is mainly controlled by several mechanisms, including sediment freezing, ice-cored moraine formation, bulldozing of pre-existing sediments, and incorporation of dead ice. The distribution of these mechanisms depends on climatological, topographical, and glaciological boundary conditions, with the slope of the ice margin being the most important factor. The retreat rates of the glacier can be calculated based on the largest and most well-defined moraines, which show a statistically significant correlation with annual air temperature anomalies.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Ethan Lee, Neil Ross, Andrew C. G. Henderson, Andrew J. Russell, Stewart S. R. Jamieson, Derek Fabel
Summary: Characterizing glaciological change in the tropical Andes is crucial for understanding climate change. The discovery of extensive glaciation in the low-elevation region of Laguna de Las Huaringas in northern Peru provides evidence of past climate patterns in the sub-tropics and sheds light on glacier dynamics and responses to global climate perturbations.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Ian Delaney, Leif S. Anderson
Summary: Debris in glaciers affects their shape and movement, reducing ice melt and potentially leading to conditions for glacier surging.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Bo Zhang, Guoxiang Liu, Xiaowen Wang, Yin Fu, Qiao Liu, Bing Yu, Rui Zhang, Zhilin Li
Summary: This study presents a novel approach using satellite synthetic aperture radar (SAR) to map mountain glaciers. The results show that the proposed method can efficiently map glacier outlines and is useful for inferring glacier boundary changes.
Article
Geography, Physical
Hang Cui, Badingquiying, Haizhen Mou
Summary: Researchers used a coupled mass balance and ice flow model to simulate the evolution of glaciers in the Gurla Mandhata area and found that the extent of glaciers in the region was more sensitive to temperature change than to precipitation change. Based on their model results and climate records, they identified temperature change as the main control on the glacial advance during the Little Ice Age in Gurla Mandhata.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Qiang Wei, Yonggang Liu, Qing Yan, Tandong Yao, Miao Wang, Han Huang, Yongyun Hu
Summary: The growth of glaciers affects the local climate system and can either promote or prohibit further glacier growth. This feedback mechanism has not been included in previous glacier modeling studies of the Tibetan Plateau and its surroundings during the Last Glacial Maximum. However, this study found that when considering the feedback, the simulated volume and area of the glaciers were 20% and 10% less, respectively, compared to a standalone glacier model. The expansion of glaciers also led to changes in spatial patterns, improved model-data comparison, and had significant impacts on the winter surface temperature and precipitation distribution in the region.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Brittany N. Price, Nathan D. Stansell, Alfonso Fernandez, Joseph M. Licciardi, Alia J. Lesnek, Ariel Munoz, Mary K. Sorensen, Edilia Jaque Castillo, Tal Shutkin, Isabella Ciocca, Ianire Galilea
Summary: The development of robust chronologies of Neoglaciation in the high-altitude Andes can provide valuable insights into regional climate variability and aid in predicting future changes. Unfortunately, records of Late Holocene glaciation in the Central Chilean Andes are limited. In this study, we used a combination of dating techniques to establish a chronology of glacier fluctuations and found evidence of coeval climate variability between the middle and high southern latitudes during the Late Holocene.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geography, Physical
Nicholas J. Zaremba, Christopher A. Scholz, Robert Moucha
Summary: Ice streams are important sites for ice-sheet drainage and have an impact on deglaciation rates and ice-sheet mass balance. In this study, seismic tomography is used to estimate the thickness of glacial deposits in Oneida Lake, USA. The study identifies a thick sedimentary section and a paleotopographic low that likely encouraged the formation of the Oneida Ice Stream.
JOURNAL OF GLACIOLOGY
(2023)
Article
Environmental Sciences
Jakob Abermann, Manuel Theurl, Elisabeth Frei, Bernhard Hynek, Wolfgang Schoener, Karl W. Steininger
Summary: Glaciers are seen as symbols of pristine high mountain landscapes by humans, attracting millions of visitors annually and providing crucial ecosystem services. Despite the high costs exceeding three times the revenue from tourism, artificial management can still conserve glaciers with abundant water availability under ongoing climate change.
REGIONAL ENVIRONMENTAL CHANGE
(2022)
Article
Engineering, Aerospace
Aparna Shukla, Bisma Yousuf, Ankit Bindal, Manoj Kumar Arora, Avtar Singh Jasrotia
Summary: New techniques are used to monitor debris-covered glaciers and understand their response to climate change. The study utilizes super-resolution mapping to provide low-cost and high-resolution facies maps of glaciers. The accuracy of the mapping depends on scale factor and surface heterogeneity.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Carlos E. Nieto, Ana Calvo, Raquel Cruz, Antonio Miguel Martinez-Grana, Jose Luis Goy, Jose angel Gonzalez-Delgado
Summary: The study of the Pena Negra paleoglacier reveals its sensitivity to paleoclimatic variations and provides insights into its ice volume and paleoclimatic conditions during the maximum extension phase through modeling and reconstruction data.
Article
Engineering, Civil
J. De Marco, L. Carturan, E. Maset, S. Cucchiaro, D. Visintini, R. De Infanti, F. Cazorzi
Summary: This study documents the changes in the Montasio Glacier over the last century and reveals its unusual response to climatic changes. The increase in debris cover and changes in snowfall are the main factors influencing the divergence between the Montasio Glacier and other Alpine glaciers.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Loris Compagno, Matthias Huss, Harry Zekollari, Evan S. Miles, Daniel Farinotti
Summary: Glaciers are shrinking rapidly worldwide, and potential ice-dammed and supraglacial lakes in High Mountain Asia are expected to increase, which may result in a temporary increase in glacier lake outburst floods.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Environmental Sciences
Jia Li, Yunyang Gu, Lixin Wu, Lei Guo, Haodong Xu, Zelang Miao
Summary: Glaciers and glacial lakes in the Bosula Mountain Range are melting at a rapid pace, posing a significant threat to downstream settlements and the Sichuan-Tibet Road. However, despite strong ice melting, there is no evidence of surge activity or an increase in glacier lake outbursts.
Article
Geography, Physical
Luis M. Tanarro, David Palacios, Jose M. Fernandez-Fernandez, Nuria Andres, Marc Oliva, Manuel Rodriguez-Mena, Irene Schimmelpfennig, Skafti Brynjolfsson, Thorsteinn Saemundsson, Jose J. Zamorano, Jose Ubeda
Summary: This study focuses on the transformation process of debris-free mountain glaciers into debris-covered glaciers and rock glaciers in the Hofsdalur valley, northern Iceland. The results show that the glaciers in the study area followed a similar evolution pattern to other cirques in the Trollaskagi peninsula, with retreat dynamics and cirque floor elevation influencing the subsequent glacial evolution. Ice-cored landforms have survived above the lower permafrost limit, while debris-free glaciers have been observed during the Late Holocene in higher altitude cirques.
QUATERNARY SCIENCE REVIEWS
(2021)