CHASING ICE Q&As
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Calving Processes and the Dynamics of Calving Glaciers ⁎ Douglas I
Earth-Science Reviews 82 (2007) 143–179 www.elsevier.com/locate/earscirev Calving processes and the dynamics of calving glaciers ⁎ Douglas I. Benn a,b, , Charles R. Warren a, Ruth H. Mottram a a School of Geography and Geosciences, University of St Andrews, KY16 9AL, UK b The University Centre in Svalbard, PO Box 156, N-9171 Longyearbyen, Norway Received 26 October 2006; accepted 13 February 2007 Available online 27 February 2007 Abstract Calving of icebergs is an important component of mass loss from the polar ice sheets and glaciers in many parts of the world. Calving rates can increase dramatically in response to increases in velocity and/or retreat of the glacier margin, with important implications for sea level change. Despite their importance, calving and related dynamic processes are poorly represented in the current generation of ice sheet models. This is largely because understanding the ‘calving problem’ involves several other long-standing problems in glaciology, combined with the difficulties and dangers of field data collection. In this paper, we systematically review different aspects of the calving problem, and outline a new framework for representing calving processes in ice sheet models. We define a hierarchy of calving processes, to distinguish those that exert a fundamental control on the position of the ice margin from more localised processes responsible for individual calving events. The first-order control on calving is the strain rate arising from spatial variations in velocity (particularly sliding speed), which determines the location and depth of surface crevasses. Superimposed on this first-order process are second-order processes that can further erode the ice margin. -
Ilulissat Icefjord
World Heritage Scanned Nomination File Name: 1149.pdf UNESCO Region: EUROPE AND NORTH AMERICA __________________________________________________________________________________________________ SITE NAME: Ilulissat Icefjord DATE OF INSCRIPTION: 7th July 2004 STATE PARTY: DENMARK CRITERIA: N (i) (iii) DECISION OF THE WORLD HERITAGE COMMITTEE: Excerpt from the Report of the 28th Session of the World Heritage Committee Criterion (i): The Ilulissat Icefjord is an outstanding example of a stage in the Earth’s history: the last ice age of the Quaternary Period. The ice-stream is one of the fastest (19m per day) and most active in the world. Its annual calving of over 35 cu. km of ice accounts for 10% of the production of all Greenland calf ice, more than any other glacier outside Antarctica. The glacier has been the object of scientific attention for 250 years and, along with its relative ease of accessibility, has significantly added to the understanding of ice-cap glaciology, climate change and related geomorphic processes. Criterion (iii): The combination of a huge ice sheet and a fast moving glacial ice-stream calving into a fjord covered by icebergs is a phenomenon only seen in Greenland and Antarctica. Ilulissat offers both scientists and visitors easy access for close view of the calving glacier front as it cascades down from the ice sheet and into the ice-choked fjord. The wild and highly scenic combination of rock, ice and sea, along with the dramatic sounds produced by the moving ice, combine to present a memorable natural spectacle. BRIEF DESCRIPTIONS Located on the west coast of Greenland, 250-km north of the Arctic Circle, Greenland’s Ilulissat Icefjord (40,240-ha) is the sea mouth of Sermeq Kujalleq, one of the few glaciers through which the Greenland ice cap reaches the sea. -
PDF Download
ournal Summer 2009, Vol. 19 No. 2 Glacier Chasers Also in this issue: Journalism“missteps” examined Students tweet Montana pollution trial Enviro stories snatch national awards A quarterly publication of the Society of Environmental Journalists The new must-have, non-partisan guide tohotly contested issues of the nuclear era An essential reference, The Reporter’s Handbook presents scientifically accurate and accessible overviews of the most important issues in the nuclear realm, including: G health effects G nuclear safety and engineering G Three Mile Island and Chernobyl G nuclear medicine G food irradiation G transport of nuclear materials 304 pages I 978-0-8265-1659-6 hardcover $69.95 I 978-0-8265-1660-2 paper $29.95 G spent fuel G nuclear weapons ABOUT THE AUTHORS: G global warming Three of the authors (Michael R. Greenberg, Karen W. Lowrie, and Henry J. Mayer) have for more than a decade done nuclear The Reporter’s Handbook contains background waste research and review work as part of their association with briefs on topics related to nuclear materials, the Consortium for Risk Evaluation with Stakeholder energy, waste management, and risk; a glossary; Participation. The authors are also associated with the National key web and paper sources; and context regarding Center for Neighborhood and Brownfield Redevelopment at the risk assessment, environmental impact, economics, Edward J. Bloustein School of Planning and Public Policy at and policy. Each “brief” is based on interviews Rutgers. Greenberg also serves as associate editor for environ- with named scientists, engineers, or administra- mental health for the American Journal of Public Health and as tors in a nuclear specialty, and each has been editor-in-chief of Risk Analysis, where Lowrie serves as managing reviewed by a team of independent experts. -
Savor the Cryosphere
Savor the Cryosphere Patrick A. Burkhart, Dept. of Geography, Geology, and the Environment, Slippery Rock University, Slippery Rock, Pennsylvania 16057, USA; Richard B. Alley, Dept. of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802, USA; Lonnie G. Thompson, School of Earth Sciences, Byrd Polar and Climate Research Center, Ohio State University, Columbus, Ohio 43210, USA; James D. Balog, Earth Vision Institute/Extreme Ice Survey, 2334 Broadway Street, Suite D, Boulder, Colorado 80304, USA; Paul E. Baldauf, Dept. of Marine and Environmental Sciences, Nova Southeastern University, 3301 College Ave., Fort Lauderdale, Florida 33314, USA; and Gregory S. Baker, Dept. of Geology, University of Kansas, 1475 Jayhawk Blvd., Lawrence, Kansas 66045, USA ABSTRACT Cryosphere,” a Pardee Keynote Symposium loss of ice will pass to the future. The This article provides concise documen- at the 2015 Annual Meeting in Baltimore, extent of ice can be measured by satellites tation of the ongoing retreat of glaciers, Maryland, USA, for which the GSA or by ground-based glaciology. While we along with the implications that the ice loss recorded supporting interviews and a provide a brief assessment of the first presents, as well as suggestions for geosci- webinar. method, our focus on the latter is key to ence educators to better convey this story informing broad audiences of non-special- INTRODUCTION to both students and citizens. We present ists. The cornerstone of our approach is the the retreat of glaciers—the loss of ice—as The cryosphere is the portion of Earth use of repeat photography so that the scale emblematic of the recent, rapid contraction that is frozen, which includes glacial and and rate of retreat are vividly depicted. -
The Shadow Caregivers: American Families and Long-Term Care Joint
S. HRG. 101-755 THE SHADOW CAREGIVERS: AMERICAN FAMILIES AND LONG-TERM CARE JOINT HEARING BEFORE THE SPECIAL COMMITTEE ON AGING UNITED STATES SENATE AND THE U.S. BIPARTISAN COMMISSION ON COMPREHENSIVE HEALTH CARE (THE PEPPER COMMISSION) ONE HUNDRED FIRST CONGRESS FIRST SESSION PHILADELPHIA, PA NOVEMBER 13, 1989 Printed for the use of the Senate Special Committee on Aging and the Pepper Commission Senate Special Committee on Aging Serial No. 101-12 The Pepper Commission Part 6 U.S. GOVERNMENT PRINTING OFFICE 28-291 WASHINGTON: 1990 For sale by the Superintendent of Documents, Congressional Sales Office U.S. Government Printing Office, Washington, DC 20402 SPECIAL COMMITTEE ON AGING DAVID PRYOR, Arkansas, Chairman JOHN GLENN, Ohio JOHN HEINZ, Pennsylvania BILL BRADLEY, New Jersey WILLIAM S. COHEN, Maine QUENTIN N. BURDICK, North Dakota LARRY PRESSLER, South Dakota J. BENNETT JOHNSTON, Louisiana CHARLES E. GRASSLEY, Iowa JOHN B. BREAUX, Louisiana PETE WILSON, California RICHARD SHELBY, Alabama PETE V. DOMENICI, New Mexico HARRY REID, Nevada ALAN K. SIMPSON, Wyoming BOB GRAHAM, Florida JOHN WARNER, Virginia HERBERT KOHL, Wisconsin NANCY LANDON KASSEBAUM, Kansas PORTIA PORTER MIrrELMAN, Staff Director CHRISTOPHER C. JENNINGS, Deputy Staff Director JEFFREY R. LEWIS, Minority Staff Director THE PEPPER COMMISSION U.S. BIPARTISAN COMMISSION ON COMPREHENSIVE HEALTH CARE JOHN D. ROCKEFELLER IV, West Virginia, Chairman FORTNEY PETE STARK, California, Vice Chairman MAX BAUCUS, Montana, Vice Chairman DAVE DURENBERGER, Minnesota, Vice Chairman BILL GRADISON, Ohio, Vice Chairman MARY ROSE OAKAR, Ohio JOHN HEINZ, Pennsvlvania LOUIS STOKES, Ohio EDWARD M. KENNEDY, Massachusetts THOMAS TAUKE, Iowa DAVID PRYOR, Arkansas HENRY WAXMAN, California PRESIDENTIAL APPOINTEES JAMES BALOG JAMES DAVIS, M.D. -
168 2Nd Issue 2015
ISSN 0019–1043 Ice News Bulletin of the International Glaciological Society Number 168 2nd Issue 2015 Contents 2 From the Editor 25 Annals of Glaciology 56(70) 5 Recent work 25 Annals of Glaciology 57(71) 5 Chile 26 Annals of Glaciology 57(72) 5 National projects 27 Report from the New Zealand Branch 9 Northern Chile Annual Workshop, July 2015 11 Central Chile 29 Report from the Kathmandu Symposium, 13 Lake district (37–41° S) March 2015 14 Patagonia and Tierra del Fuego (41–56° S) 43 News 20 Antarctica International Glaciological Society seeks a 22 Abbreviations new Chief Editor and three new Associate 23 International Glaciological Society Chief Editors 23 Journal of Glaciology 45 Glaciological diary 25 Annals of Glaciology 56(69) 48 New members Cover picture: Khumbu Glacier, Nepal. Photograph by Morgan Gibson. EXCLUSION CLAUSE. While care is taken to provide accurate accounts and information in this Newsletter, neither the editor nor the International Glaciological Society undertakes any liability for omissions or errors. 1 From the Editor Dear IGS member It is now confirmed. The International Glacio be moving from using the EJ Press system to logical Society and Cambridge University a ScholarOne system (which is the one CUP Press (CUP) have joined in a partnership in uses). For a transition period, both online which CUP will take over the production and submission/review systems will run in parallel. publication of our two journals, the Journal Submissions will be twotiered – of Glaciology and the Annals of Glaciology. ‘Papers’ and ‘Letters’. There will no longer This coincides with our journals becoming be a distinction made between ‘General’ fully Gold Open Access on 1 January 2016. -
Dicionarioct.Pdf
McGraw-Hill Dictionary of Earth Science Second Edition McGraw-Hill New York Chicago San Francisco Lisbon London Madrid Mexico City Milan New Delhi San Juan Seoul Singapore Sydney Toronto Copyright © 2003 by The McGraw-Hill Companies, Inc. All rights reserved. Manufactured in the United States of America. Except as permitted under the United States Copyright Act of 1976, no part of this publication may be repro- duced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. 0-07-141798-2 The material in this eBook also appears in the print version of this title: 0-07-141045-7 All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trademarked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringement of the trademark. Where such designations appear in this book, they have been printed with initial caps. McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate training programs. For more information, please contact George Hoare, Special Sales, at [email protected] or (212) 904-4069. TERMS OF USE This is a copyrighted work and The McGraw-Hill Companies, Inc. (“McGraw- Hill”) and its licensors reserve all rights in and to the work. Use of this work is subject to these terms. Except as permitted under the Copyright Act of 1976 and the right to store and retrieve one copy of the work, you may not decom- pile, disassemble, reverse engineer, reproduce, modify, create derivative works based upon, transmit, distribute, disseminate, sell, publish or sublicense the work or any part of it without McGraw-Hill’s prior consent. -
Future Iceberg Discharge from Columbia Glacier, Alaska
W.T. Pfeffer Geophysical Consultants, LLC 4 December 2012 Report to Prince William Sound Citizen’s Regional Advisory Council: Future Iceberg Discharge from Columbia Glacier, Alaska Reference PWSRCAC Project #8551 Contractor: W. T. Pfeffer Geophysical Consultants, Nederland, Colorado Report #1 Part I: Data Report 1. Overview Columbia Glacier has the world’s longest and most detailed observational record of an ocean-terminating glacier in rapid retreat. The complexity and volume of data requires that its organization and archiving be managed with care. This report provides a compact overview of the available information, from raw data and imagery to maps, technical reports, and papers published in the scientific literature. The data is organized geographically, with observations of the sea floor and glacial bed followed by observations at the glacier surface and meteorological observations of the local atmosphere. Within each geographic section, observations are categorized by type or source (e.g. ship-borne sonar, aerial photography, ground- based time-lapse camera), and wherever possible, a citation or hyperlink to the data is provided. Finally, certain ancillary data, such as geodetic datum adjustments and photogrammetric control, are listed. A full discussion of the scientific literature on the Columbia Glacier is beyond the scope of this summary. However, a compact bibliography is included, and references are cited whenever necessary to explain the origin of a listed data quantity. History: Credit for the initiation of the Columbia Glacier data record goes to the U.S. Geological Survey (USGS), in particular the efforts of Mark Meier and Austin Post, who anticipated as early as the mid-1960s that Columbia Glacier was likely to begin a rapid retreat. -
On the Craft of Fiction—EL Doctorow at 80
Interview Focus Interview VOLUME 29 | NUMBER 1 | FALL 2012 | $10.00 Deriving from the German weben—to weave—weber translates into the literal and figurative “weaver” of textiles and texts. Weber (the word is the same in singular and plural) are the artisans of textures and discourse, the artists of the beautiful fabricating the warp and weft of language into everchanging pattterns. Weber, the journal, understands itself as a tapestry of verbal and visual texts, a weave made from the threads of words and images. This issue of Weber - The Contemporary West spotlights three long-standing themes (and forms) of interest to many of our readers: fiction, water, and poetry. If our interviews, texts, and artwork, as always, speak for themselves, the observations below might serve as an appropriate opener for some of the deeper resonances that bind these contributions. THE NOVEL We live in a world ruled by fictions of every kind -- mass merchandising, advertising, politics conducted as a branch of advertising, the instant translation of science and technology into popular imagery, the increasing blurring and intermingling of identities within the realm of consumer goods, the preempting of any free or original imaginative response to experience by the television screen. We live inside an enormous novel. For the writer in particular it is less and less necessary for him to invent the fictional content of his novel. The fiction is already there. The writer’s task is to invent the reality. --- J. G. Ballard WATER Anything else you’re interested in is not going to happen if you can’t breathe the air and drink the water. -
Ice-Rafted Detritus Events in the Arctic During the Last Glacial Interval, and the Timing of the Innuitian and Laurentide Ice Sheet Calving Events Dennis A
Old Dominion University ODU Digital Commons OEAS Faculty Publications Ocean, Earth & Atmospheric Sciences 8-2008 Ice-Rafted Detritus Events in the Arctic During the Last Glacial Interval, and the Timing of the Innuitian and Laurentide Ice Sheet Calving Events Dennis A. Darby Old Dominion University, [email protected] Paula Zimmerman Old Dominion University Follow this and additional works at: https://digitalcommons.odu.edu/oeas_fac_pubs Part of the Glaciology Commons, and the Oceanography and Atmospheric Sciences and Meteorology Commons Repository Citation Darby, Dennis A. and Zimmerman, Paula, "Ice-Rafted Detritus Events in the Arctic During the Last Glacial Interval, and the Timing of the Innuitian and Laurentide Ice Sheet Calving Events" (2008). OEAS Faculty Publications. 18. https://digitalcommons.odu.edu/oeas_fac_pubs/18 Original Publication Citation Darby, D. A., & Zimmerman, P. (2008). Ice-rafted detritus events in the Arctic during the last glacial interval, and the timing of the Innuitian and Laurentide ice sheet calving events. Polar Research, 27(2), 114-127. doi: 10.1111/j.1751-8369.2008.00057.x This Article is brought to you for free and open access by the Ocean, Earth & Atmospheric Sciences at ODU Digital Commons. It has been accepted for inclusion in OEAS Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Ice-rafted detritus events in the Arctic during the last glacial interval, and the timing of the Innuitian and Laurentide ice sheet calving events Dennis A. Darby & Paula Zimmerman Dept. of Ocean, Earth, and Atmospheric Sciences, Old Dominion University, Norfolk, VA 23529, USA Keywords Abstract Arctic Ocean; ice-rafting events; glacial collapses; sea ice; Fe grain provenance. -
Climate Change and Transmedia Storytelling’
COM Witnessing glaciers melt: climate change and transmedia J storytelling Anita Lam and Matthew Tegelberg Abstract The Extreme Ice Survey (EIS) is an exemplary case for examining how to effectively communicate scientific knowledge about climate change to the general public. Using textual and semiotic analysis, this article analyzes how EIS uses photography to produce demonstrative evidence of glacial retreat which, in turn, anchors a transmedia narrative about climate change. As both scientific and visual evidence, photographs have forensic value because they work within a process and narrative of witnessing. Therefore, we argue that the combination of photographic evidence with transmedia storytelling offers an effective approach for future scientific and environmental communication. Keywords Representations of science and technology; Science communication: theory and models; Visual communication DOI https://doi.org/10.22323/2.18020205 Submitted: 3rd October 2018 Accepted: 4th February 2019 Published: 4th March 2019 Introduction In 2005 and 2006, James Balog embarked on two photographic expeditions for National Geographic to record the rapid recession of the Sólheimajökull Glacier in southern Iceland [Appenzeller, 2007]. What Balog saw on these expeditions was a revelation that would become the source of a continuing obsession. Initially a climate change skeptic, it was seeing and photographing the “dying terminus” of these glaciers that Balog credits with converting him into a believer in climate change. As he explains, “[it] has been a revelation for me, to realize I’m in the midst of monumental geologic change that’s going to change the face of the Earth forever, and I’ve got this tool, this camera, with which to witness the change and to bring the story back” [Ritchin, 2010, p. -
THE ENDURANCE Motherhood Is a Young Woman’S Game B E L L a D O N N a * C O L L a B O R at I V E By
#180 B ELLADONNA *2015 #92 B ELLADONNA * CHAPLET SERIES THE ENDURANCE Motherhood is a young woman’s game B ELLADONNA * C OLLA B ORATIVE by 925 Bergen Street, Suite 405, Brooklyn, NY 11238 Sina Queyras [email protected] *deadly nightshade, a cardiac and respiratory stimulant, having purplish-red flowers black berries THE ENDURANCE Motherhood is a young woman’s game THE ENDURANCE © Sina Queyras Belladonna* Chaplet #180 is published in an edition of 150—26 of which are numbered and signed by the author in commemoration of her reading Sina Queyras with Erica Hunt, Tonya Foster, Purvi Shah on Tuesday, April 14, 2015, at the Brooklyn Public Library, Brooklyn, NY. Belladonna* is an event and publication series that promotes the work of women writers who are adventurous, experimental, politically involved, multi-form, multi-cultural, multi-gendered, impossible to define, delicious to talk about, unpredictable, dangerous with language. This program is supported, in part, by public funds from the New York City Department of Cultural Affairs in partnership with the City Council. The 2015 Belladonna* Chaplet Series is designed by Bill Mazza. Chaplets are $5 ($6 signed) in stores or at events, $7 ($9 signed) for libraries/institutions. To order chaplets or books, please make checks payable to Belladonna Series, and mail us at: 925 Bergen Street; Suite 405; Brooklyn, New York 11238 (please add $2 for postage for the first chaplet, plus .50c for each additional chaplet in a single order) You can also see more information on each book and order online: www.BelladonnaSeries.org 1. ROLL CALL You who were not born in a boat.