Arctic Stream Processes an Annotated Bibliography
Total Page:16
File Type:pdf, Size:1020Kb

Load more
Recommended publications
-
Remote Sensing of Alpine Lake Water Environment Changes on the Tibetan Plateau and Surroundings: a Review ⇑ Chunqiao Song A, Bo Huang A,B, , Linghong Ke C, Keith S
ISPRS Journal of Photogrammetry and Remote Sensing 92 (2014) 26–37 Contents lists available at ScienceDirect ISPRS Journal of Photogrammetry and Remote Sensing journal homepage: www.elsevier.com/locate/isprsjprs Review Article Remote sensing of alpine lake water environment changes on the Tibetan Plateau and surroundings: A review ⇑ Chunqiao Song a, Bo Huang a,b, , Linghong Ke c, Keith S. Richards d a Department of Geography and Resource Management, The Chinese University of Hong Kong, Shatin, Hong Kong b Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Shatin, Hong Kong c Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong d Department of Geography, University of Cambridge, Cambridge CB2 3EN, United Kingdom article info abstract Article history: Alpine lakes on the Tibetan Plateau (TP) are key indicators of climate change and climate variability. The Received 16 September 2013 increasing availability of remote sensing techniques with appropriate spatiotemporal resolutions, broad Received in revised form 26 February 2014 coverage and low costs allows for effective monitoring lake changes on the TP and surroundings and Accepted 3 March 2014 understanding climate change impacts, particularly in remote and inaccessible areas where there are lack Available online 26 March 2014 of in situ observations. This paper firstly introduces characteristics of Tibetan lakes, and outlines available satellite observation platforms and different remote sensing water-body extraction algorithms. Then, this Keyword: paper reviews advances in applying remote sensing methods for various lake environment monitoring, Tibetan Plateau including lake surface extent and water level, glacial lake and potential outburst floods, lake ice phenol- Lake Remote sensing ogy, geological or geomorphologic evidences of lake basins, with a focus on the trends and magnitudes of Glacial lake lake area and water-level change and their spatially and temporally heterogeneous patterns. -
Prevention of Outburst Floods from Periglacial Lakes at Grubengletscher, Valais, Swiss Alps
Zurich Open Repository and Archive University of Zurich Main Library Strickhofstrasse 39 CH-8057 Zurich www.zora.uzh.ch Year: 2001 Prevention of outburst floods from periglacial lakes at Grubengletscher, Valais, Swiss Alps Haeberli, Wilfried ; Kääb, Andreas ; Vonder Mühll, Daniel ; Teysseire, Philip Abstract: Flood and debris-flow hazards at Grubengletscher near Saas Balen in the Saas Valley, Valais, Swiss Alps, result from the formation and growth of several lakes at the glacier margin and within the surrounding permafrost. In order to prevent damage related to such hazards, systematic investigations were carried out and practical measures taken. The evolution of the polythermal glacier, the creeping permafrost within the large adjacent rock glacier and the development of the various periglacial lakes were monitored and documented for the last 25 years by photogrammetric analysis of annually flown high-resolution aerial photographs. Seismic refraction, d.c. resistivity and gravimetry soundings were performed together with hydrological tracer experiments to determine the structure and stability of a moraine dam at a proglacial lake. The results indicate a maximum moraine thickness of > 100 m; extremely high porosity and even ground caverns near the surface may have resulted from degradation of sub- and periglacial permafrost following 19th/20thcentury retreat of the partially cold glacier tongue. The safety and retention capacity of the proglacial lake were enhanced by deepening and reinforcing the outlet structure on top of the moraine complex. The water level of an ice-dammed lake was lowered and a thermokarst lake artficially drained. DOI: https://doi.org/10.3189/172756501781832575 Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: https://doi.org/10.5167/uzh-63516 Journal Article Originally published at: Haeberli, Wilfried; Kääb, Andreas; Vonder Mühll, Daniel; Teysseire, Philip (2001). -
Compendium of Research in the Northwest Territories 2014
Compendium of Research in the Northwest Territories 2014 www.nwtresearch.com This publication is a collaboration between the Aurora Research Institute, the Department of Environment and Natural Resources, Fisheries and Oceans Canada and the Prince of Wales Northern Heritage Centre. Thank you to all who submitted a summary of research or photographs, and helped make this publication possible. Editor: Ashley Mercer Copyright © 2015 ISSN: 1205-3910 Printed by Aurora Research Institute Foreword Welcome to the 2014 Compendium of Research in the Northwest Territories. This year marked a special anniversary for the Aurora Research Institute and northern research. Fifty years ago, the Inuvik Research Laboratory was built and has served as a hub for research in the western arctic ever since. The Lab, as it was known, was first built as an initiative of the Canadian federal government in the newly established community of Inuvik. It remains on the same site today, but in 2011, a new modern multi-purpose facility opened to continue to support research in the north. We have included a brief history of the Lab and its impact in this edition of the Compendium to mark its long lasting importance to many researchers and community members. As part of the 50th anniversary celebration, the Aurora Research Institute team undertook a full set of NWT-wide celebrations. We celebrated the history, capacity and growth of research in the NWT that touched all corners of the territory and beyond. We honoured the significant scientific contributions that have taken place in the NWT over the past 50 years, and the role of NWT researchers, technicians and citizens in these accomplishments. -
Mapping Glacial Lake Outburst Flood Landforms for Enhanced
GEOGRAZ 68 - 2021 SCHWERPUNKT ADAM EMMER ON THE AUTHOR Adam Emmer is physical geographer Mapping glacial lake and member of the re- search group Cascade with specialization in outburst flood landforms high mountain geomor- phology and natural hazard science. In his for enhanced understanding research, he focuses on hazardous conse- of their occurrence quences of retrea Sudden release of water retained in a glacial lake can produce a glacial lake outburst flood (GLOF), which is among the most effective geomorphic agents in mountain regions during the time of glacier ice loss. Extreme GLOFs imprint in relief with specific landforms (e.g. failed moraine dams, outwash fans) which can be used to document their occurrence in space and time. This contribution introduces typical landforms associated with GLOFs and outlines their utilization ting in reconstructing timing and magnitude for enhanced hazard identification and glaciers, mainly lake outburst floods. assessment. 1 Introduction: GLOFs in a range of triggers including landslide into areas as well as agricultural land (Haeber- changing world the lake, extreme precipitation and snow- li et al. 2016). Concerns about increasing melt or earthquake (Clague and O’Con- risk of GLOFs are driven by two factors: (i) Glacial lakes are typical features of re- nor 2015). GLOFs are rare, low frequency, increasing population pressure and settle- cently deglaciated high mountain regions high magnitude events with extreme char- ment expansion in mountain regions (espe- across the world (Shugar et al. 2020). acteristics (peak discharge, flood volume), cially in South America and Central Asia); While glacial lakes contribute to human with thousands of fatalities and tremen- and (ii) increasing number of glacial lakes well-being by providing goods and ser- dous material damages claimed globally and volume of stored water. -
Annual Report: October 1, 2014 Assessing the Impact of Small, Canadian Arctic River Flows to the Freshwater Budget of the Canadian Archipelago Matthew B
Annual Report: October 1, 2014 Assessing the impact of small, Canadian Arctic River flows to the freshwater budget of the Canadian Archipelago Matthew B. Alkire, University of Washington Assessing the impact of small, Canadian Arctic river flows to the freshwater budget of the Canadian Archipelago (or SCARFs) is a scientific research project funded by the National Science Foundation (USA). The purpose of this project is to collect water samples from seven different rivers and their adjoining estuaries throughout the Canadian Arctic Archipelago (see Fig. 1) in order to determine whether or not their chemical signatures differ from larger North American rivers such as the Mackenzie and Yukon Rivers. Five of the rivers are located within Nunavut, Canada: the Coppermine River (near Kugluktuk), Ellice River (~140 km southeast of Cambridge Bay), Back River (~180 km southeast of Gjoa Haven), Cunningham River (~77 km southeast of Resolute Bay on Somerset Island), and Kangiqtugaapik River (near Clyde River, Baffin Island). Two of the rivers are located within the Northwest Territories, Canada: the Kujjuua River (located approximately 67 km northeast of Ulukhaktok on Victoria Island) and Thomsen River (specifically near the mouth of the river where it empties into Castel Bay, on Banks Island). Figure 1. Map of the Canadian Arctic Archipelago. The red stars indicate the mouths of the rivers sampled during this study: (1) Coppermine R., (2) Ellice R., (3) Back R., (4) Kuujuua R. (Victoria Island), (5) Thomsen R. (Banks Island), (6) Cunningham R. (Somerset Island), and (7) Clyde R. (Baffin Island). The Coppermine, Ellice, and Back Rivers are located on the mainland of Nunavut. -
The 2015 Chileno Valley Glacial Lake Outburst Flood, Patagonia
Aberystwyth University The 2015 Chileno Valley glacial lake outburst flood, Patagonia Wilson, R.; Harrison, S.; Reynolds, John M.; Hubbard, Alun; Glasser, Neil; Wündrich, O.; Iribarren Anacona, P.; Mao, L.; Shannon, S. Published in: Geomorphology DOI: 10.1016/j.geomorph.2019.01.015 Publication date: 2019 Citation for published version (APA): Wilson, R., Harrison, S., Reynolds, J. M., Hubbard, A., Glasser, N., Wündrich, O., Iribarren Anacona, P., Mao, L., & Shannon, S. (2019). The 2015 Chileno Valley glacial lake outburst flood, Patagonia. Geomorphology, 332, 51-65. https://doi.org/10.1016/j.geomorph.2019.01.015 Document License CC BY General rights Copyright and moral rights for the publications made accessible in the Aberystwyth Research Portal (the Institutional Repository) are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the Aberystwyth Research Portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the Aberystwyth Research Portal Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. tel: +44 1970 62 2400 email: [email protected] Download date: 09. Jul. 2020 Geomorphology 332 (2019) 51–65 Contents lists available at ScienceDirect Geomorphology journal homepage: www.elsevier.com/locate/geomorph The 2015 Chileno Valley glacial lake outburst flood, Patagonia R. -
Article in Press
ARTICLE IN PRESS Quaternary Science Reviews 24 (2005) 1533–1541 Correspondence$ Fresh arguments against the Shaw megaflood hypothesis. that the Lake Agassiz flood was the ‘‘largest in the last A reply to comments by David Sharpe on ‘‘Paleohy- 100,000 years’’ refers to a different publication (Clarke draulics of the last outburst flood from glacial Lake et al., 2003). We agree that, in terms of peak discharge, Agassiz and the 8200 BP cold event’’ both the Missoula floods (e.g., Clarke et al., 1984; O’Connor and Baker, 1992) and the Altay event (Baker et al., 1993) were indeed larger (roughly 17 Sv for Missoula and 418 Sv for Altay) but the released water 1. The megaflood hypothesis volume was a small fraction of that released from glacial Lake Agassiz (Table 1). Furthermore, the focus of We disagree with the premise underlying most of Clarke et al. (2003) was on abrupt climate change David Sharpe’s comments, namely that the Shaw triggered by freshwater injection to the North Atlantic subglacial megaflood hypothesis enjoys sufficient main- Ocean at 8200 BP: Freshwater volume rather than peak streamacceptance that we were negligent in failing to flood discharge is the relevant measure of flood cite it. Although the literature on Shavian megafloods magnitude for activation of this climate switch. Sharpe’s has grown over the past decade, it is less clear that the comment that ‘‘improved knowledge of additional flood ideas have gained ground. As a recent datum, Benn and terrains is important in assessing the impact of specific Evans (2005) assert that ‘‘most Quaternary scientists outburst floods on rapid climate change’’ seems to miss give little or no credence to the [Shaw] megaflood the point that flood intensity, which controls the interpretation, and it conflicts with an overwhelming geomorphic imprint, is only a second-order influence body of modern research on past and present ice sheet on the climate impact. -
Information in Support of the Identification of Ecologically
Canadian Science Advisory Secretariat (CSAS) Research Document 2018/027 Central and Arctic Region Information in Support of the Identification of Ecologically Significant Species, Functional Groups and Community Properties (ESSCP) in the Western Arctic Biogeographic Region D.G. Cobb1, S. MacPhee1, J. Paulic1, K. Martin1, V. Roy2, J. Reist1, C. Michel1, A. Niemi1, E. Richardson3, and A. Black4 1Fisheries and Oceans Canada Freshwater Institute 501 University Crescent Winnipeg, MB, R3T 2N6 2Canadian Museum of Nature PO Box 3443, Station D Ottawa, ON, K1P6P4 3Environment and Climate Change Canada Eastgate Offices 9250 – 49th Street Edmonton, AB, T6B 1K5 4Environment and Climate Change Canada 1125 Colonel By Drive Ottawa, ON, K1A 0H3 November 2020 Foreword This series documents the scientific basis for the evaluation of aquatic resources and ecosystems in Canada. As such, it addresses the issues of the day in the time frames required and the documents it contains are not intended as definitive statements on the subjects addressed but rather as progress reports on ongoing investigations. Published by: Fisheries and Oceans Canada Canadian Science Advisory Secretariat 200 Kent Street Ottawa ON K1A 0E6 http://www.dfo-mpo.gc.ca/csas-sccs/ [email protected] © Her Majesty the Queen in Right of Canada, 2020 ISSN 1919-5044 Correct citation for this publication: Cobb, D.G., MacPhee, S., Paulic, J., Martin, K., Roy, V., Reist, J., Michel, C., Niemi, A., Richardson, E., and Black, A. 2020. Information in Support of the Identification of Ecologically Significant Species, Functional Groups and Community Properties (ESSCP) in the Western Arctic Biogeographic Region. DFO Can. -
Polar Continental Shelf Program Science Report 2019: Logistical Support for Leading-Edge Scientific Research in Canada and Its Arctic
Polar Continental Shelf Program SCIENCE REPORT 2019 LOGISTICAL SUPPORT FOR LEADING-EDGE SCIENTIFIC RESEARCH IN CANADA AND ITS ARCTIC Polar Continental Shelf Program SCIENCE REPORT 2019 Logistical support for leading-edge scientific research in Canada and its Arctic Polar Continental Shelf Program Science Report 2019: Logistical support for leading-edge scientific research in Canada and its Arctic Contact information Polar Continental Shelf Program Natural Resources Canada 2464 Sheffield Road Ottawa ON K1B 4E5 Canada Tel.: 613-998-8145 Email: [email protected] Website: pcsp.nrcan.gc.ca Cover photographs: (Top) Ready to start fieldwork on Ward Hunt Island in Quttinirpaaq National Park, Nunavut (Bottom) Heading back to camp after a day of sampling in the Qarlikturvik Valley on Bylot Island, Nunavut Photograph contributors (alphabetically) Dan Anthon, Royal Roads University: page 8 (bottom) Lisa Hodgetts, University of Western Ontario: pages 34 (bottom) and 62 Justine E. Benjamin: pages 28 and 29 Scott Lamoureux, Queen’s University: page 17 Joël Bêty, Université du Québec à Rimouski: page 18 (top and bottom) Janice Lang, DRDC/DND: pages 40 and 41 (top and bottom) Maya Bhatia, University of Alberta: pages 14, 49 and 60 Jason Lau, University of Western Ontario: page 34 (top) Canadian Forces Combat Camera, Department of National Defence: page 13 Cyrielle Laurent, Yukon Research Centre: page 48 Hsin Cynthia Chiang, McGill University: pages 2, 8 (background), 9 (top Tanya Lemieux, Natural Resources Canada: page 9 (bottom -
Northern Arctic
ECOLOGICAL REGIONS OF THE NORTHWEST TERRITORIES NORTHERN ARCTIC ECOSYSTEM CLASSIFICATION GROUP Department of Environment and Natural Resources Government of the Northwest Territories 2013 ECOLOGICAL REGIONS OF THE NORTHWEST TERRITORIES NORTHERN ARCTIC This report may be cited as: Ecosystem Classification Group. 2013. Ecological Regions of the Northwest Territories – Northern Arctic. Department of Environment and Natural Resources, Government of the Northwest Territories, Yellowknife, NT, Canada. x + 157 pp. + insert map (printed copies). Library and Archives Canada Cataloguing in Publication Northwest Territories. Ecosystem Classification Group Ecological regions of the Northwest Territories, northern Arctic / Ecosystem Classification Group. Includes bibliographical references. ISBN 978-0-7708-0205-9 1. Ecological regions--Northwest Territories. 2. Biotic communities--Arctic regions. I. Northwest Territories. Dept. of Environment and Natural Resources II. Title. QH106.2 N55 N67 2013 577.09719'3 C2013-980025-5 For more information contact: Department of Environment and Natural Resources P.O. Box 1320 Yellowknife, NT X1A 2L9 Phone: (867) 920-8064 Fax: (867) 873-0293 Web Site: http://www.enr.gov.nt.ca About the cover: The main cover photo shows Bailey Point, located on the north side of Liddon Gulf (Melville Coastal Plain MA Ecoregion, p. 54). A muskox skull on lush green tundra is in the foreground on the back cover. In the midground is multi-year pack ice, and in the far distance is the low dome of the Dundas Peninsula and to the right of the title on the front cover, the uplands of Melville Island. Bailey Point contains the most favourable habitat for muskoxen among the High Arctic Islands north of M’Clure Strait. -
Structural Controls on Englacial Esker Sedimentation: Skeiðara´Rjo¨Kull, Iceland
Annals of Glaciology 50(51) 2009 85 Structural controls on englacial esker sedimentation: Skeiðara´rjo¨kull, Iceland Matthew J. BURKE,1 John WOODWARD,1 Andrew J. RUSSELL,2 P. Jay FLEISHER3 1School of Applied Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK E-mail: [email protected] 2School of Geography, Politics and Sociology, Newcastle University, Newcastle upon Tyne NE1 7RU, UK 3Earth Sciences Department, State University of New York, Oneonta, NY 13820-4015, USA ABSTRACT. We have used ground-penetrating radar (GPR) to observe englacial structural control upon the development of an esker formed during a high-magnitude outburst flood (jo¨kulhlaup). The surge- type Skeiðara´rjo¨kull, an outlet glacier of the Vatnajo¨kull ice cap, Iceland, is a frequent source of jo¨kulhlaups. The rising-stage waters of the November 1996 jo¨kulhlaup travelled through a dense network of interconnected fractures that perforated the margin of the glacier. Subsequent discharge focused upon a small number of conduit outlets. Recent ice-marginal retreat has exposed a large englacial esker associated with one of these outlets. We investigated structural controls on esker genesis in April 2006, by collecting >2.5 km of GPR profiles on the glacier surface up-glacier of where the esker ridge has been exposed by meltout. In lines closest to the exposed esker ridge, we interpret areas of englacial horizons up to 30 m wide and 10–15 m high as an up-glacier continuation of the esker sediments. High-amplitude, dipping horizons define the -
1 Overview of Megaflooding: Earth and Mars
Cambridge University Press 978-0-521-86852-5 - Megaflooding on Earth and Mars Edited by Devon M. Burr, Paul A. Carling and Victor R. Baker Excerpt More information 1 Overview of megaflooding: Earth and Mars VICTOR R. BAKER Summary of the Channeled Scabland in the northwestern United After centuries of geological controversy it is now States (Baker, 1978, 1981). Extending from the 1920s to well established that the last major deglaciation of planet the 1970s, the great ‘scablands debate’ eventually led to a Earth involved huge fluxes of water from the wasting conti- general acceptance of the cataclysmic flood origin for the nental ice sheets, and that much of this water was delivered region that had been championed by J Harlen Bretz, a pro- as floods of immense magnitude and relatively short dura- fessor at The University of Chicago. The second important tion. These late Quaternary megafloods, and the megafloods development was the discovery in the early 1970s of ancient of earlier glaciations, had short-term peak flows, compara- cataclysmic flood channels on the planet Mars (e.g. Baker ble in discharge to the more prolonged fluxes of ocean and Milton, 1974; Baker, 1982). The Martian outflow chan- currents. (The discharges for both ocean currents and nels were produced by the largest known flood discharges, megafloods generally exceed one million cubic metres per and their effects have been preserved for billions of years second, hence the prefix ‘mega’.) Some outburst floods (Baker, 2001). likely induced very rapid, short-term effects on Quater- Relatively recently it has come to be realised that nary climates.