Review
Geosciences, Multidisciplinary
Nazir Ahmed Bazai, Peng Cui, Paul A. Carling, Hao Wang, Javed Hassan, Dingzhu Liu, Guotao Zhang, Wen Jin
Summary: Unlike glaciers in other parts of the world, Karakoram glaciers show stable or increasing mass in response to global climate change, leading to the 'Karakoram anomaly'. The region experiences irregular glacier surges that pose a threat of ice dam lake formation and outburst flooding. This study documents 179 GLOFs from 1533 to 2020, predicting future increases in frequency due to glacier surge cycles and anomalous behavior.
EARTH-SCIENCE REVIEWS
(2021)
Article
Environmental Sciences
Bowen Jia, Shugui Hou, Yetang Wang
Summary: A surging glacier was discovered on the Zangser Kangri ice field in the Central Tibetan Plateau, with evidence showing the surge event started between late 2012 and early 2014. The glacier may have surged in the 1970s as well, and has maintained a slightly positive mass balance since 1999, potentially due to its location on the southern edge of mass balance anomaly on the Tibetan Plateau. The characteristics of relatively balanced mass condition, large size, and shallow slope may be associated with glacier surges in the Central and Northern Tibetan Plateau.
Article
Environmental Sciences
Daan Li, Liming Jiang, Ronggang Huang
Summary: By using remote sensing observations and an ice-flow model, a comprehensive investigation was conducted on hydrological and kinematic precursors before the calving event of Petermann Glacier in northern Greenland on 26 July 2017. The study found that prior to the calving, there was a rapid increase in ice flow speed, decrease in sea ice extent, and expansion of melt ponds on the glacier surface.
Article
Environmental Sciences
Yunyi Luo, Qiao Liu, Yan Zhong, Wang Han
Summary: Long-term monitoring of ice-dammed lakes is crucial for understanding lake storage, development, and glacial outburst flood (GLOF). Using remote sensing observations from 1972 to 2020, the filling and draining of Kyagar Lake, a typical annually ice-dammed lake, was reconstructed in detail. The study revealed two periods of regular annual lake outbursts, 1996-2009 and 2015-2020, which were likely related to glacier surge dynamics. The findings highlight the importance of close monitoring of glacial lake development and glacier dynamics considering the uncertainty and intensified climate changes.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Environmental Sciences
Hemant Singh, Divyesh Varade, Maximillian Van Wyk de Vries, Kirtan Adhikari, Manish Rawat, Shubham Awasthi, Deepak Rawat
Summary: Glacial lake formation and expansion in the Himalayas have resulted from increasing temperatures and glacier recession, posing the risk of glacial lake outburst floods (GLOFs). GLOFs can lead to devastating downstream impacts. The Mochowar and Shisper glaciers in the Hunza valley exemplify the dangers of GLOFs. This study investigates a recent GLOF from the Shisper glacier ice-dammed lake and identifies a potential overdeepening site for future lake formation at the Mochowar glacier. Using the Himalayan Glacier Thickness Mapper (HIGTHIM), a high GLOF susceptibility of the future lake was determined based on multi-criterion decision analysis. The recent GLOF event from the Shisper glacier ice-dammed lake had a estimated release volume of 6.23 x 106 m3.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geography, Physical
Harold Lovell, Jonathan L. Carrivick, Owen King, Jenna L. Sutherland, Jacob C. Yde, Clare M. Boston, Jakub Malecki
Summary: This study presents the first systematic inventory of surge-type glaciers in Greenland, analyzing their spatial distribution and surge timing from 1985 to 2019. The results show that surge-type glaciers in Greenland are influenced by well-defined climatic envelopes in the west and east clusters. Additionally, it suggests that the surge activity of glaciers in the west cluster may be reduced due to their thinning and shift from polythermal to cold-based thermal regime.
JOURNAL OF GLACIOLOGY
(2023)
Article
Engineering, Civil
Zhen Zhang, Pengjie Tao, Shiyin Liu, Shasha Zhang, Danni Huang, Kehong Hu, Yijie Lu
Summary: In this study, the Karayaylak Glacier in the Pamir region was observed and analyzed using remote sensing images. The characteristics and mechanism of the glacier surge were identified, with high water pressure and drainage system conditions being the main driving factors. Additionally, the behavior of the Karayaylak Glacier showed similarities with other glaciers in the Karakoram.
JOURNAL OF HYDROLOGY
(2022)
Article
Geography, Physical
Yongpeng Gao, Shiyin Liu, Miaomiao Qi, Yu Zhu, Fuming Xie, Kunpeng Wu, Zongli Jiang
Summary: The study identifies 11 surge-type glaciers in the Geladandong Mountain region, with 9 glaciers starting to surge in the 1980s and 1990s, and 2 glaciers beginning to surge after 2000. The active phases of glacier surges typically last 10-19 years, with peak surge velocities ranging between 30 and 100 meters per year.
Article
Environmental Sciences
Sivaranjani Sivalingam, Geetha Priya Murugesan, Krishnaveni Dhulipala, Anil Vishnupant Kulkarni, Ankur Pandit
Summary: The present study focuses on estimating the Karakoram glacier velocity using remote sensing techniques and assessing the robustness of extracting the velocity products of the Rimo Glacier. Results show that the average velocity of the Rimo glacier estimated from different techniques is consistent with earlier studies, and continuous monitoring of the velocity of Karakoram glaciers is necessary for understanding future surging trends.
GEOCARTO INTERNATIONAL
(2022)
Article
Engineering, Aerospace
Debangshu Banerjee, Vaibhav Garg, Praveen K. Thakur
Summary: The transition of a glacier from quiescence to surge phase can significantly affect its dynamics and characteristics. The study conducted on the Monacobreen Glacier in Svalbard from 2016 to 2019 revealed that the glacier had been inactive since 2001 before experiencing a surge from 2017 to 2018. Geospatial techniques were employed to identify different radar zones within the glacier and track changes in equilibrium line altitude and surface velocity. The analysis demonstrated that the glacier's dynamic behavior and characteristics were altered during the surge phase. Geospatial techniques can provide reasonable estimates of a glacier's physical and dynamical parameters in the absence of field observations.
ADVANCES IN SPACE RESEARCH
(2022)
Article
Geography, Physical
Andrea Kneib-Walter, Martin P. Luthi, Martin Funk, Guillaume Jouvet, Andreas Vieli
Summary: By studying two glaciers in Greenland, researchers have found that glaciers in different terrains and environments exhibit different flow and calving behaviors, which are also influenced by factors such as air temperature, tides, and topography.
JOURNAL OF GLACIOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Xiaohan Yuan, Gang Qiao, Yanjun Li
Summary: Research found that the velocity of Byrd Glacier remained stable from 1963 to 2020, indicating that it was not significantly affected by calving events or air temperature changes, but rather influenced by subglacial drainage systems. Additionally, the glacier showed positive mass balance during this period, suggesting that global climate change has had limited impact on it.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Article
Environmental Sciences
Yongpeng Gao, Shiyin Liu, Miaomiao Qi, Xiaojun Yao, Yu Zhu, Fuming Xie, Kunpeng Wu, Muhammad Saifullah
Summary: This study examines glacier surges in the Tuanjie Peak region of the Qilian Mountains using optical images and multi-source DEMs. The researchers identify several confirmed and likely surge-type glaciers and analyze changes in surface velocity, morphology, and elevation. The findings suggest a correlation between surge dynamics and glacial hydrology, with the possibility of increased glacier instability in the region due to regional warming trends.
Article
Environmental Sciences
Changbin Bai, Feiteng Wang, Lin Wang, Chunhai Xu, Xiaoying Yue, Shujing Yang, Puyu Wang, Yanqun Bi, Haining Wei
Summary: The Mt.Tomur glaciers in Western China are experiencing more frequent glacial hazards due to climate change, despite no changes in long-term glacier surface velocities. This study used image-correlation offset tracking to estimate the glacier surface velocity and ice thickness in the Mt.Tomur region from 2000 to 2020. The results showed a significant slowdown in glacier surface velocity and provided insights into the glacier ice thickness distribution. The reliability of the remote sensing methods was confirmed by comparing with measured surface velocity and ice thickness data.
Article
Environmental Sciences
Sajid Ali, Garee Khan, Wajid Hassan, Javed Akhter Qureshi, Iram Bano
Summary: Ice masses and snow of Hunza River Basin are crucial sources of fresh water for downstream inhabitants, but are significantly affected by changing climatic conditions. While the overall glacier area in HRB decreased from 1990 to 2018, there was a period of growth observed from 2009 to 2015. The glaciers in HRB are relatively stable compared to other regions, but are still vulnerable to climate change impacts.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Meteorology & Atmospheric Sciences
C. Bravo, D. J. Quincey, A. N. Ross, A. Rivera, B. Brock, E. Miles, A. Silva
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2019)
Article
Geography, Physical
Rodrigo Gomez, Jorge Arigony-Neto, Angela De Santis, Saurabh Vijay, Ricardo Jana, Andres Rivera
GLOBAL AND PLANETARY CHANGE
(2019)
Article
Geography, Physical
R. Wilson, S. Harrison, J. Reynolds, A. Hubbard, N. F. Glasser, O. Wundrich, P. Iribarren Anacona, L. Mao, S. Shannon
Article
Geography, Physical
Francisca Bown, Andres Rivera, Michal Petlicki, Claudio Bravo, Jonathan Oberreuter, Carlos Moffat
JOURNAL OF GLACIOLOGY
(2019)
Article
Engineering, Environmental
M. Durand, A. Rivera, F. Geremia-Nievinski, M. G. Lenzano, J. F. Galera Monico, P. Paredes, L. Lenzano
COLD REGIONS SCIENCE AND TECHNOLOGY
(2019)
Article
Geosciences, Multidisciplinary
C. J. Fogwill, C. S. M. Turney, L. Menviel, A. Baker, M. E. Weber, B. Ellis, Z. A. Thomas, N. R. Golledge, D. Etheridge, M. Rubino, D. P. Thornton, T. D. van Ommen, A. D. Moy, M. A. J. Curran, S. Davies, M. Bird, N. C. Munksgaard, C. M. Rootes, H. Millman, J. Vohra, A. Rivera, A. Mackintosh, J. Pike, I. R. Hall, E. A. Bagshaw, E. Rainsley, C. Bronk-Ramsey, M. Montenari, A. G. Cage, M. R. P. Harris, R. Jones, A. Power, J. Love, J. Young, L. S. Weyrich, A. Cooper
Article
Geography, Physical
Valentina Zorzut, Lucas Ruiz, Andres Rivera, Pierre Pitte, Ricardo Villalba, Dorota Medrzycka
JOURNAL OF GLACIOLOGY
(2020)
Article
Geography, Physical
David Farias-Barahona, Ryan Wilson, Claudio Bravo, Sebastian Vivero, Alexis Caro, Thomas E. Shaw, Gino Casassa, Alvaro Ayala, Alonso Mejias, Stephan Harrison, Neil F. Glasser, James McPhee, Olaf Wundrich, Matthias H. Braun
JOURNAL OF GLACIOLOGY
(2020)
Editorial Material
Geography, Physical
Johannes Reinthaler, Frank Paul, Hugo Delgado Granados, Andres Rivera, Christian Huggel
JOURNAL OF GLACIOLOGY
(2020)
Article
Geography, Physical
J. L. Wood, S. Harrison, R. Wilson, A. Emmer, C. Yarleque, N. F. Glasser, J. C. Torres, A. Caballero, J. Araujo, G. L. Bennett, A. Diaz-Moreno, D. Garay, H. Jara, C. Poma, J. M. Reynolds, C. A. Riveros, E. Romero, S. Shannon, T. Tinoco, E. Turpo, H. Villafane
Summary: Glacier recession due to climate warming has led to the growth in size and number of glacial lakes, impacting water resources and glacier mass balance, as well as posing risks of glacial lake outburst floods. By creating a comprehensive inventory of glacial lakes in Peru, this study addresses knowledge gaps and provides reproducible methods for consistent monitoring in other mountainous regions. The inventory reveals that the majority of glacial lakes are detached from glaciers, with different dam types affecting lake size variations. This inventory serves as a crucial first step in understanding glacial lakes and assessing risks associated with glacial lake outburst floods.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Geography, Physical
Claudio Bravo, Andrew N. Ross, Duncan J. Quincey, Sebastian Cisternas, Andres Rivera
Summary: Research on the Southern Patagonia Icefield suggests that glacial ablation is influenced by energy balance, with significant differences in climatic conditions and energy fluxes between the western and eastern parts of the icefield.
JOURNAL OF GLACIOLOGY
(2022)
Article
Geography, Physical
Adam Emmer, Joanne L. Wood, Simon J. Cook, Stephan Harrison, Ryan Wilson, Alejandro Diaz-Moreno, John M. Reynolds, Juan C. Torres, Christian Yarleque, Martin Mergili, Harrinson W. Jara, Georgie Bennett, Adriana Caballero, Neil F. Glasser, Enver Melgarejo, Christian Riveros, Sarah Shannon, Efrain Turpo, Tito Tinoco, Lucas Torres, David Garay, Hilbert Villafane, Henrry Garrido, Carlos Martinez, Nebenka Apaza, Julia Araujo, Carlos Poma
Summary: This study examines GLOF events in glacierized areas of the Cordilleras of Peru and Bolivia using high-resolution satellite and aerial imagery, as well as documentary data. A total of 160 GLOF events from 151 individual sites are characterized and analyzed, tripling the number of previously reported events. The study provides important statistics on these events for regional GLOF hazard identification and assessment.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Geography, Physical
A. G. Thomas Smyth, Ryan Wilson, Paul Rooney, L. Katherine Yates
Summary: This study compares supervised classification and manual digitization methods and finds that estimates of vegetation and bare sand areas in coastal sand dunes vary with image resolution and classification method. Supervised classification maps more extensive areas of bare sand and is more accurate than manual digitization, but has poor repeatability. Manual digitization has higher repeatability but relatively low agreement with field data. Increasing image resolution generally improves agreement with field data.
Article
Environmental Sciences
Maria Gabriela Lenzano, Andres Rivera, Marcelo Durand, Paulina Vacaflor, Micaela Carbonetti, Esteban Lannutti, Mauricio Gende, Luis Lenzano
Summary: This study analyzes the crustal deformation caused by ice retreat in the Southern Patagonian Icefield. By installing continuous GPS stations in the northern area and analyzing glacier elevation changes, the study reveals a continuous crustal uplift and accelerated glacier wastage in the region. Furthermore, the study detects a complex interaction between glacier wastage and water levels in the neighboring Patagonian lakes.
Article
Geography, Physical
Felipe Napoleoni, Stewart S. R. Jamieson, Neil Ross, Michael J. Bentley, Andres Rivera, Andrew M. Smith, Martin J. Siegert, Guy J. G. Paxman, Guisella Gacitua, Jose A. Uribe, Rodrigo Zamora, Alex M. Brisbourne, David G. Vaughan