Geomorphological map of Breiðamerkursandur 2018: the historical evolution of an active temperate glacier foreland

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-10-02 DOI:10.1080/04353676.2022.2148083

S. Guðmundsson, D. Evans

{"title":"Geomorphological map of Breiðamerkursandur 2018: the historical evolution of an active temperate glacier foreland","authors":"S. Guðmundsson, D. Evans","doi":"10.1080/04353676.2022.2148083","DOIUrl":null,"url":null,"abstract":"ABSTRACT We present a geomorphological map of Breiðamerkursandur, the outwash plain and foreland of Breiðamerkurjökull, an outlet glacier of the Vatnajökull ice cap, Southeast Iceland. We trace the glacial retreat of the glacier snout since its historical late nineteenth century Little Ice Age (LIA) maximum extent and the concomitant development of the glacial drainage pathways. Since the outlet began retreating from its LIA terminal position, a 120 km2 area of foreland has been exposed. The mapped geomorphology is a supplementary continuation of previous surveys in the 20th century, which highlighted the geomorphology and ice margin for the years 1945, 1965 and 1998. Since the 1998 landsystem map, Breiðamerkurjökull has retreated a further 0.6–4.0 km and 29 km2 has been exposed. This new map was prepared with the use of remote sensing, LiDAR DEM, a range of oblique aerial photographs and satellite images, written documents, in-field survey measurements and refined landform classifications to more accurately trace the position of the retreating snout and its outlet streams over the last 130 years.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1080/04353676.2022.2148083","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 4

Abstract

ABSTRACT We present a geomorphological map of Breiðamerkursandur, the outwash plain and foreland of Breiðamerkurjökull, an outlet glacier of the Vatnajökull ice cap, Southeast Iceland. We trace the glacial retreat of the glacier snout since its historical late nineteenth century Little Ice Age (LIA) maximum extent and the concomitant development of the glacial drainage pathways. Since the outlet began retreating from its LIA terminal position, a 120 km2 area of foreland has been exposed. The mapped geomorphology is a supplementary continuation of previous surveys in the 20th century, which highlighted the geomorphology and ice margin for the years 1945, 1965 and 1998. Since the 1998 landsystem map, Breiðamerkurjökull has retreated a further 0.6–4.0 km and 29 km2 has been exposed. This new map was prepared with the use of remote sensing, LiDAR DEM, a range of oblique aerial photographs and satellite images, written documents, in-field survey measurements and refined landform classifications to more accurately trace the position of the retreating snout and its outlet streams over the last 130 years.

查看原文本刊更多论文

brei - or - amerkursandur 2018地貌图:温带活动冰川前陆的历史演变

摘要:我们绘制了冰岛东南部Vatnajökull冰帽出口冰川Breiðamerkurjökull的外冲平原和前陆brei - ðamerkursandur的地形图。我们追踪了自19世纪末小冰期(LIA)以来冰川口部的冰川退缩及其伴随的冰川排水路径的发展。由于出口开始从其LIA终端位置撤退，120平方公里的前陆已经暴露出来。绘制的地貌图是对20世纪以前调查的补充延续，这些调查突出了1945年、1965年和1998年的地貌图和冰缘。自1998年陆地系统地图以来，Breiðamerkurjökull又退缩了0.6-4.0公里，暴露了29平方公里。这张新地图是利用遥感、激光雷达DEM、一系列倾斜的航空照片和卫星图像、书面文件、实地调查测量和精确的地形分类来制作的，以更准确地追踪过去130年来退缩的鼻部及其流出溪流的位置。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.