Analysis of Dynamic Change and Causes of the Area of Hala Lake from 1986 to 2019 by WANG Renjun, LIU Baokang, HUANG Bingting

“…The dynamic monitoring of lake area not only contributes to the analysis of regional climate change scenarios,but also provides reliable data sources for regional water resources assessment.Based on the multi-source satellite data from 1986 to 2019,this paper extracts the water area of Hala Lake,and analyzes the inter-decadal,inter-annual and annual dynamic changes and their causes of the Hala Lake in the last 36 years in combination with the observation data of Delingha and Tuole meteorological stations around Hala Lake.The results show that:The area of Hala Lake decreased first and then increased between 1980s and 2010s,among which the area decreased slowly from 1986 to 2001,and then expanded from 2002 to 2019.The average area is the smallest in 1990s and the largest since 2010.Within a year,the lake area first decreased and then increased in the past three years.The lake area in 2019 was larger than that in the previous two years,except in April and December when was about the same as that in 2018,and the difference between the maximum and minimum monthly area in the past three years was 10.08 km² and 12.52 km² respectively.The area with obvious changes in the shoreline is located in the southeast and southwest of the Hala lake.After the analysis of meteorological and glacier data,it indicates that the climate in the Hala Lake shows a warming and humidifying trend from 1961 to 2018,with the temperature rising rate of 0.4 ℃/(10a) (R=0.296),and the precipitation increasing rate of 19.3 mm/(10a) (R=0.562,P<0.01).Therefore,it can be concluded that the climate warming and humidifying and the reduction of glacier area together lead to the expansion of the lake area,which is mainly caused by precipitation.…”
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A data-consistent model of the last glaciation in the Alps achieved with physics-driven AI by Tancrède P. M. Leger, Guillaume Jouvet, Sarah Kamleitner, Jürgen Mey, Frédéric Herman, Brandon D. Finley, Susan Ivy-Ochs, Andreas Vieli, Andreas Henz, Samuel U. Nussbaumer

“…We tackle this issue by applying the Instructed Glacier Model, a three-dimensional model enhanced with physics-informed machine learning. …”
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The glacial geomorphology of the Cordillera Darwin Icefield, Tierra del Fuego, southernmost South America by Eñaut Izagirre, Neil Glasser, Brian Menounos, Juan-Carlos Aravena, Sérgio Faria, Iñaki Antiguedad

“…Prior to this, information on outlet glacier dynamics is limited as there are few terrestrial observations and little mapped deglacial evidence, limiting our understanding of CDI dynamics on Holocene centennial to millennial timescales. …”
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Revisiting ice-marginal positions north-east of Feldberg, southern Black Forest, south-west Germany by F. M. Hofmann, F. Preusser

“…Recent studies have shown that reconstructing former glaciers in the mid-elevation mountain ranges in central Europe, calculating equilibrium line altitudes (ELAs), and using of empirical relationships between summer temperature and precipitation at the ELAs of modern glaciers could be a promising avenue to fill this gap. …”
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« An Octopus / of ice » : stratigraphies d’un poème by Aurore Clavier

“…Fascinated by living and rock surfaces, and by their hidden depths, shaped by its multiple layers of discourse, “An Octopus,” the long poem Marianne Moore dedicated to the Mount Rainier glacier and national park at the beginning of the 1920s, invites to digging into deep time, as much as to the deciphering of modernity to which criticism has often reduced its interpretations. …”
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Present-day mass loss rates are a precursor for West Antarctic Ice Sheet collapse by T. van den Akker, W. H. Lipscomb, G. R. Leguy, J. Bernales, C. J. Berends, W. J. van de Berg, R. S. W. van de Wal, R. S. W. van de Wal

“…We find that, for all ensemble members, the Thwaites Glacier and Pine Island Glacier collapse. Our results imply that present-day ocean thermal forcing, if held constant over multiple centuries, may be sufficient to deglaciate large parts of the WAIS, raising global mean sea level by at least a meter.…”
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Frequent Glacial Hazard Deformation Detection Based on POT-SBAS InSAR in the Sedongpu Basin in the Himalayan Region by Haoliang Li, Yinghui Yang, Xiujun Dong, Qiang Xu, Pengfei Li, Jingjing Zhao, Qiang Chen, Jyr-Ching Hu

“…To accurately monitor and research these glacier hazards, Sentinel-1 Synthetic Aperture Radar images observed between 2014 and 2022 were collected to extract surface motion using SBAS-POT technology. …”
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Multi-component Runoff Simulation in Arid Area Based on BP Neural Network by HAN Zichen, WANG Yi, HE Bin

“…The surface runoff of inland rivers in arid area of Northwest China is a valuable available water resource.However,due to the complexity of runoff composition,runoff simulation is complex,and it is difficult to actually utilize the water resources.This paper applies the back-propagation (BP) neural network combined with the degree-day factor of snowmelt runoff model (SRM) to analyze and simulate the runoff process of Kaidu River Basin in Xinjiang.The results show that:①The simulation accuracy is high.The daily average temperature is the main factor affecting the runoff and process in the target river basin.②Using autocorrelation coefficient method to process daily average flow series can significantly improve the simulation accuracy of annual average daily runoff,especially for daily runoff in the snow melting period (March to May) of target river basin that cannot be effectively simulated by ordinary input.This study provides a new way for the rapid simulation of runoff supplied by glacier,snow melting and precipitation in arid area of Northwest China,and an effective reference for rational utilization of water resources.…”
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Comparing Surface Height Used in NCAR Climate Model with That Observed by ICEsat: Effects on Skin Temperature Simulation by Menglin Jin

“…It first compares ICEsat surface height measurements over Greenland with those used by the model and reveals that the surface height of Greenland prescribed in the National Center for Atmospheric Research (NCAR) Community Climate System Model/Community Land Model version 3 (CCSM/CLM3) differs greatly from the satellite measurements from National Aeronautics and Space Administration (NASA) ICEsat at edges and central glacier regions. This deficiency, in part, leads to underestimated skin temperatures at coastal regions—the areas where significant ice sheet melt is observed. …”
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Valle de Ordesa (Pirineo central de Huesca, Aragón, noviembre de 2021) by Daniel E. Rodríguez Patiño

“…The Ordesa valley is a spectacular glacier valley that has been declared a World Heritage Site by the UNESCO. …”
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Valle de Ordesa (Pirineo central de Huesca, Aragón, noviembre de 2021) by Daniel E. Rodríguez Patiño

“…The Ordesa valley is a spectacular glacier valley that has been declared a World Heritage Site by the UNESCO. …”
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Turner’s 1836 Alpine Crossing and the Little Ice Age Portrayed in Val Veny and Val Ferret; a Geography of the Sublime by Martin P. Kirkbride, Susan P. Mains, Vanessa Brazier

“…Turner’s visit coincided with the mid-nineteenth century maximum advance of glaciers in the region allowing him to witness dynamic geomorphological processes in close proximity. …”
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Weathering products in glacial silt and clay: Using automated mineralogy to probe size distribution and source by Jeffrey W. Crompton

“…In this study, automated mineralogy is used to characterize the size distribution of weathering products from bedrock and glacial sediment collected from multiple glacier basins in the St. Elias Mountains, Yukon, Canada. …”
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Antarctic Wide Subglacial Hydrology Modeling by Shivani Ehrenfeucht, Christine Dow, Koi McArthur, Mathieu Morlighem, Felicity S. McCormack

“…Specifically, subglacial hydrology, which describes the volume and movement of meltwater underneath glaciers and resulting basal water pressures. This system exerts a strong control on ice basal sliding and the rate of ice shelf melt, both of which can destabilize glaciers and lead to enhanced sea level rise. …”
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Mountain sentinels in a changing world: Review and conservation implications of weather and climate effects on mountain goats (Oreamnos americanus) by Kevin S. White, Becky Cadsand, Steeve D. Côté, Tabitha Graves, Sandra Hamel, Richard B. Harris, Forest P. Hayes, Eran Hood, Kevin Hurley, Tyler Jessen, Bill Jex, Erich Peitzsch, Wesley Sarmento, Helen Schwantje, Joel Berger

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Geomorphology of the Caracota Valley, Western Altiplano, Northern Chile by Jan-Christoph Otto, Matias Gallardo, Luca Sitzia, Daniela Osorio, Eugenia M. Gayo

“…A complex pattern of Pleistocene and Early Holocene glacier activity is responsible for the today's landscape configuration. …”
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Prevalence and dynamics of antimicrobial resistance in pioneer and developing Arctic soils by Shamik Roy, Robin A. Dawson, James A. Bradley, Marcela Hernández

“…Their abundance generally increases with soil age but at different rates overall and across different glacier forefields. Our analyses suggest a strong positive relationship between soil age and ARGs and ARB, which we attribute to increased competition between microbes in older soils. …”
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On the factors and the degree of their effect on subglacial melt and changes in the state of Antarctic subglacial lakes by Alina Boronina, Sergey Popov, Gang Qiao

“…In areas where the ice sheet is thinner than 1,500 m, air temperature is the second most important factor affecting subglacial conditions. In areas where the glacier is thicker, the ice thickness begins to have a greater effect. …”
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Climbing Mont Blanc (4808 m a.s.l.): What Are the Risks in the Grand Couloir Du Goûter and On the North Face of Mont Blanc Du Tacul? by Ludovic Ravanel, Jacques Mourey, Lorig Tamian, Sébastien Ibanez, Didier Hantz, Pascal Lacroix, Pierre-Allain Duvillard

“…The risk is also quantified for each track made on the glacier. The results obtained makes it possible to specify the risks experienced by climbers and to promote risk reduction strategies.…”
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Global mean sea level likely higher than present during the holocene by Roger C. Creel, Jacqueline Austermann, Robert E. Kopp, Nicole S. Khan, Torsten Albrecht, Jonathan Kingslake

“…We merge sea-level data with a glacial isostatic adjustment model ensemble and reconstructions of postglacial thermosteric sea-level and mountain glacier evolution to estimate Holocene GMSL and ice volume. …”
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