Journal of Glaciology最新文献_第2页

Transient subglacial water routing efficiency modulates ice velocities prior to surge termination on Sít’ Kusá, AK 瞬态冰川下水路由效率调节阿拉斯加州 Sít' Kusá 浪涌终止前的冰速

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-04-18 DOI: 10.1017/jog.2024.38

Yoram Terleth, T. Bartholomaus, Jukes Liu, F. Beaud, T. D. Mikesell, E. Enderlin

引用次数: 1

The last remnants of the Italian Apennine glaciers: 3-D modeling of the Lower Calderone Glacieret by the IDW spatial interpolation of GPR data 意大利亚平宁冰川的最后遗迹：通过对 GPR 数据进行 IDW 空间插值对下卡尔德龙冰川进行三维建模

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-04-17 DOI: 10.1017/jog.2024.36

Matteo Dossi, E. Mattei, Massimo Pecci, B. Cosciotti, S. Lauro, Angelo Monaco, Marco Scozzafava, E. Pettinelli

引用次数: 0

Repeated subglacial jökulhlaups in northeastern Greenland revealed by CryoSat 低温卫星揭示的格陵兰岛东北部反复出现的冰川下大潮

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-04-16 DOI: 10.1017/jog.2024.32

Laurence Gray, David Burgess, Luke Copland, Christine Dow, Xavier Fettweis, David Fisher, W. Kochtitzky, W. Van Wychen, James Zheng

引用次数: 0

The stepwise decrease of 4+ year ice extent and its linked survivability since around 2007 自 2007 年左右以来，4 年以上冰期范围及其相关存活率逐步下降

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-04-15 DOI: 10.1017/jog.2024.33

Qinqin Shan, Ke Fan, Jiping Liu

引用次数: 0

Response of lacustrine glacier dynamics to atmospheric forcing in the Cordillera Darwin – ERRATUM 达尔文山脉湖泊冰川动力学对大气强迫的响应 - ERRATUM

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-04-15 DOI: 10.1017/jog.2024.28

Lukas Langhamer, T. Sauter, Franziska Temme, Niklas Werner, Florian Heinze, J. Arigony-Neto, I. González, Ricardo Jaña, Christoph Schneider

引用次数: 0

Topographic and hydrological controls on partial and full surges of Little Kluane Glacier, Yukon 育空地区小克卢恩冰川部分和全部涌浪的地形和水文控制因素

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-04-15 DOI: 10.1017/jog.2024.35

Brittany Main, Luke Copland, Gwenn Elizabeth Flowers, Christine Fiona Dow, Wesley Van Wychen, Sergey Samsonov, William Kochtitzky

{"title":"Topographic and hydrological controls on partial and full surges of Little Kluane Glacier, Yukon","authors":"Brittany Main, Luke Copland, Gwenn Elizabeth Flowers, Christine Fiona Dow, Wesley Van Wychen, Sergey Samsonov, William Kochtitzky","doi":"10.1017/jog.2024.35","DOIUrl":"https://doi.org/10.1017/jog.2024.35","url":null,"abstract":"We demonstrate that a ~20 km long valley glacier in the St. Elias Mountains, Yukon, can experience both partial and full surges, likely controlled by the presence of a topographic constriction and the formation and drainage of supraglacial lakes. Based on analysis of air photos, satellite images and field observations since the 1940s, we identify a full surge of ‘Little Kluane Glacier’ from 2013 to 2018, and a partial surge of just the upper north arm between 1963 and 1972. Repeat digital elevation models and velocity profiles indicate that the recent surge initiated from the upper north arm in 2013, which developed into a full surge of the main trunk from 2017 to 2018 with peak velocities of ~3600 m a−1 and frontal advance of ~1.7 km from May to September 2018. In 2016, a mass movement from the north arm to the main trunk generated a surface depression in a region immediately downstream of a topographic constriction, which promoted the formation and rapid drainage of supraglacial lakes to the glacier bed, and likely established the conditions to propel the initial partial surge into a full surge. Our results underscore the complex interplay between glacier geometry, surface hydrology and topography required to drive full surges of this glacier.","PeriodicalId":15981,"journal":{"name":"Journal of Glaciology","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141149028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Terminus thinning drives recent acceleration of a Greenlandic lake-terminating outlet glacier 冰川末端变薄导致格陵兰湖泊末端冰川近期加速消融

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-04-01 DOI: 10.1017/jog.2024.30

Ed Holt, P. Nienow, E. Medina-Lopez

引用次数: 0

Dynamic models for impact-initiated stress waves through snow columns 通过雪柱的冲击应力波动态模型

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-03-22 DOI: 10.1017/jog.2024.26

S. V. Verplanck, E. E. Adams

引用次数: 0

For whom and by whom is glaciology? 冰川学为谁服务？

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-03-21 DOI: 10.1017/jog.2024.29

A. Robel, Lizz Ultee, Meghana Ranganathan, Meredith Nash

引用次数: 0

Glacier mass balance and its climatic and nonclimatic drivers in the Ladakh region during 2000–2021 from remote sensing data 从遥感数据看 2000-2021 年拉达克地区的冰川质量平衡及其气候和非气候驱动因素

IF 3.4 3区地球科学

Journal of Glaciology Pub Date : 2024-03-20 DOI: 10.1017/jog.2024.19

Arindan Mandal, Bramha Dutt Vishwakarma, Thupstan Angchuk, Mohd Farooq Azam, Purushottam Kumar Garg, Mohd Soheb

{"title":"Glacier mass balance and its climatic and nonclimatic drivers in the Ladakh region during 2000–2021 from remote sensing data","authors":"Arindan Mandal, Bramha Dutt Vishwakarma, Thupstan Angchuk, Mohd Farooq Azam, Purushottam Kumar Garg, Mohd Soheb","doi":"10.1017/jog.2024.19","DOIUrl":"https://doi.org/10.1017/jog.2024.19","url":null,"abstract":"This study investigates the geodetic mass balance of nearly all glaciers in the Ladakh region, which are crucial for local water security. Utilizing multiple digital elevation models from 2000 and 2021, we estimate glacier mass balances. Climatic drivers of glacier mass balances are explored using ERA5-Land reanalysis data, evaluated by in situ climate data. The study also examines the role of nonclimatic (morphological) variables on glacier mass balances. Results indicate Ladakh glaciers experienced negative mass balances during 2000–2021, with significant spatial variability. Western Ladakh glaciers lost slightly higher mass (−0.35 ± 0.07 to −0.37 ± 0.07 m w.e. a−1) than eastern Ladakh glaciers (−0.21 ± 0.07 to −0.33 ± 0.05 m w.e. a−1). While warming is the main driver of widespread mass loss in Ladakh, the spatial variability in mass loss is attributed to changes in regional precipitation and glacier morphological settings. Eastern Ladakh glaciers, being smaller and at higher elevations, experience lower mass loss, whereas western Ladakh glaciers, larger and at lower elevations, are more susceptible to the impact of temperature, resulting in higher mass loss. The study underscores the potentially greater vulnerability of western Ladakh glaciers to a warming climate compared to their eastern counterparts.","PeriodicalId":15981,"journal":{"name":"Journal of Glaciology","volume":null,"pages":null},"PeriodicalIF":3.4,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140165651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0