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Air and Shipborne Magnetic Surveys of the Antarctic Into the 21St Century
TECTO-125389; No of Pages 10 Tectonophysics xxx (2012) xxx–xxx Contents lists available at SciVerse ScienceDirect Tectonophysics journal homepage: www.elsevier.com/locate/tecto Air and shipborne magnetic surveys of the Antarctic into the 21st century A. Golynsky a,⁎,R.Bellb,1, D. Blankenship c,2,D.Damasked,3,F.Ferracciolie,4,C.Finnf,5,D.Golynskya,6, S. Ivanov g,7,W.Jokath,8,V.Masolovg,6,S.Riedelh,7,R.vonFresei,9,D.Youngc,2 and ADMAP Working Group a VNIIOkeangeologia, 1, Angliysky Avenue, St.-Petersburg, 190121, Russia b LDEO of Columbia University, 61, Route 9W, PO Box 1000, Palisades, NY 10964-8000, USA c University of Texas, Institute for Geophysics, 4412 Spicewood Springs Rd., Bldg. 600, Austin, Texas 78759-4445, USA d BGR, Stilleweg 2 D-30655, Hannover, Germany e BAS, High Cross, Madingley Road, Cambridge, CB3 OET, UK f USGS, Denver Federal Center, Box 25046 Denver, CO 80255, USA g PMGE, 24, Pobeda St., Lomonosov, 189510, Russia h AWI, Columbusstrasse, 27568, Bremerhaven, Germany i School of Earth Sciences, The Ohio State University, 125 S. Oval Mall, Columbus, OH, 43210, USA article info abstract Article history: The Antarctic geomagnetics' community remains very active in crustal anomaly mapping. More than 1.5 million Received 1 August 2011 line-km of new air- and shipborne data have been acquired over the past decade by the international community Received in revised form 27 January 2012 in Antarctica. These new data together with surveys that previously were not in the public domain significantly Accepted 13 February 2012 upgrade the ADMAP compilation. -
Office of Polar Programs
DEVELOPMENT AND IMPLEMENTATION OF SURFACE TRAVERSE CAPABILITIES IN ANTARCTICA COMPREHENSIVE ENVIRONMENTAL EVALUATION DRAFT (15 January 2004) FINAL (30 August 2004) National Science Foundation 4201 Wilson Boulevard Arlington, Virginia 22230 DEVELOPMENT AND IMPLEMENTATION OF SURFACE TRAVERSE CAPABILITIES IN ANTARCTICA FINAL COMPREHENSIVE ENVIRONMENTAL EVALUATION TABLE OF CONTENTS 1.0 INTRODUCTION....................................................................................................................1-1 1.1 Purpose.......................................................................................................................................1-1 1.2 Comprehensive Environmental Evaluation (CEE) Process .......................................................1-1 1.3 Document Organization .............................................................................................................1-2 2.0 BACKGROUND OF SURFACE TRAVERSES IN ANTARCTICA..................................2-1 2.1 Introduction ................................................................................................................................2-1 2.2 Re-supply Traverses...................................................................................................................2-1 2.3 Scientific Traverses and Surface-Based Surveys .......................................................................2-5 3.0 ALTERNATIVES ....................................................................................................................3-1 -
The Triggers of the Disaggregation of Voyeykov Ice Shelf (2007), Wilkes Land, East Antarctica, and Its Subsequent Evolution
Journal of Glaciology The triggers of the disaggregation of Voyeykov Ice Shelf (2007), Wilkes Land, East Antarctica, and its subsequent evolution Article Jennifer F. Arthur1 , Chris R. Stokes1, Stewart S. R. Jamieson1, 1 2 3 Cite this article: Arthur JF, Stokes CR, Bertie W. J. Miles , J. Rachel Carr and Amber A. Leeson Jamieson SSR, Miles BWJ, Carr JR, Leeson AA (2021). The triggers of the disaggregation of 1Department of Geography, Durham University, Durham, DH1 3LE, UK; 2School of Geography, Politics and Voyeykov Ice Shelf (2007), Wilkes Land, East Sociology, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK and 3Lancaster Environment Centre/Data Antarctica, and its subsequent evolution. Science Institute, Lancaster University, Bailrigg, Lancaster, LA1 4YW, UK Journal of Glaciology 1–19. https://doi.org/ 10.1017/jog.2021.45 Abstract Received: 15 September 2020 The weakening and/or removal of floating ice shelves in Antarctica can induce inland ice flow Revised: 31 March 2021 Accepted: 1 April 2021 acceleration. Numerical modelling suggests these processes will play an important role in Antarctica’s future sea-level contribution, but our understanding of the mechanisms that lead Keywords: to ice tongue/shelf collapse is incomplete and largely based on observations from the Ice/atmosphere interactions; ice/ocean Antarctic Peninsula and West Antarctica. Here, we use remote sensing of structural glaciology interactions; ice-shelf break-up; melt-surface; sea-ice/ice-shelf interactions and ice velocity from 2001 to 2020 and analyse potential ocean-climate forcings to identify mechanisms that triggered the rapid disintegration of ∼2445 km2 of ice mélange and part of Author for correspondence: the Voyeykov Ice Shelf in Wilkes Land, East Antarctica between 27 March and 28 May 2007. -
Big in Japan at the 1970 World’S Fair by W
PROOF1 2/6/20 @ 6pm BN / MM Please return to: by BIG IN JAPAN 40 | MAR 2020 MAR | SPECTRUM.IEEE.ORG AT THE 1970 WORLD’S FAIR FAIR WORLD’S 1970 THE AT HOW ART, TECH, AND PEPSICO THEN CLASHED TECH, COLLABORATED, ART, HOW BY W. PATRICK M PATRICK W. BY CRAY c SPECTRUM.IEEE.ORG | MAR 2020 MAR | 41 PHOTOGRAPH BY Firstname Lastname RK MM BP EV GZ AN DAS EG ES HG JK MEK PER SKM SAC TSP WJ EAB SH JNL MK (PDF) (PDF) (PDF) (PDF) (PDF) (PDF) (PDF) Big in Japan I. The Fog and The Floats ON 18 MARCH 1970, a former Japanese princess stood at the tion. To that end, Pepsi directed close to center of a cavernous domed structure on the outskirts of Osaka. US $2 million (over $13 million today) to With a small crowd of dignitaries, artists, engineers, and busi- E.A.T. to create the biggest, most elaborate, ness executives looking on, she gracefully cut a ribbon that teth- and most expensive art project of its time. ered a large red balloon to a ceremonial Shinto altar. Rumbles of Perhaps it was inevitable, but over the thunder rolled out from speakers hidden in the ceiling. As the 18 months it took E.A.T. to design and balloon slowly floated upward, it appeared to meet itself in mid- build the pavilion, Pepsi executives grew air, reflecting off the massive spherical mirror that covered the increasingly concerned about the group’s walls and ceiling. vision. And just a month after the opening, With that, one of the world’s most extravagant and expensive the partnership collapsed amidst a flurry multimedia installations officially opened, and the attendees of recriminating letters and legal threats. -
ACADEMIC ENCOUNTER the American University in Japan and Korea R
ACADEMIC ENCOUNTER The American University in Japan and Korea r ACADEMIC ENCOUNTER The American University in Japan and Korea By Martin Bronfenbrennet THE FREE PRESS OF GLENCOE, INC. A division of the Crowell-Collier Publishing Co. New York t BUREAU OF SOCIAL AND POLITICAL RESEARCH Michigan State University f East Lansing, Michigan I Copyright@ 1961 BY THE BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY East Lansing, Michigan Library of Congress Catalog Card Number: 61-63703 i t , PREFACE • This study of some 18 American university affiliations with Japanese and Korean institutions is a small part of a larger study of the American university overseas. The larger study l is undertaken by the Institute for Research on Overseas Pro grams at Michigan State University. What is said here about programs in Japan and Korea can be compared with what other staff members of the Institute have saidabout programs in other countries, particularly other Asian countries such as India and !t Indonesia. , Many believe with ex-President Eisenhower that the American university should expand its foreign affiliations as a contribution t to economic and cultural reconstruction and development over seas, and to better international understanding between America and other countries. In this view, university affiliations are an j important type of "people to people" contacts across national boundaries. Others believe that the American university should f concentrate its limited manpower and resources on the domestic job it does best, and reduce the scale of its commitments abroad. Part of the decision (or compromise) between these viewpoints should be based on a knowledge of what the existing international programs are in fact attempting or accomplishing. -
Tidal Modulation of Antarctic Ice Shelf Melting Ole Richter1,2, David E
Tidal Modulation of Antarctic Ice Shelf Melting Ole Richter1,2, David E. Gwyther1, Matt A. King2, and Benjamin K. Galton-Fenzi3 1Institute for Marine and Antarctic Studies, University of Tasmania, Private Bag 129, Hobart, TAS, 7001, Australia. 2Geography & Spatial Sciences, School of Technology, Environments and Design, University of Tasmania, Hobart, TAS, 7001, Australia. 3Australian Antarctic Division, Kingston, TAS, 7050, Australia. Correspondence: Ole Richter ([email protected]) This is a non-peer reviewed preprint submitted to EarthArXiv. This preprint has also been submitted to The Cryosphere for peer review. 1 Abstract. Tides influence basal melting of individual Antarctic ice shelves, but their net impact on Antarctic-wide ice-ocean interaction has yet to be constrained. Here we quantify the impact of tides on ice shelf melting and the continental shelf seas 5 by means of a 4 km resolution circum-Antarctic ocean model. Activating tides in the model increases the total basal mass loss by 57 Gt/yr (4 %), while decreasing continental shelf temperatures by 0.04 ◦C, indicating a slightly more efficient conversion of ocean heat into ice shelf melting. Regional variations can be larger, with melt rate modulations exceeding 500 % and temperatures changing by more than 0.5 ◦C, highlighting the importance of capturing tides for robust modelling of glacier systems and coastal oceans. Tide-induced changes around the Antarctic Peninsula have a dipolar distribution with decreased 10 ocean temperatures and reduced melting towards the Bellingshausen Sea and warming along the continental shelf break on the Weddell Sea side. This warming extends under the Ronne Ice Shelf, which also features one of the highest increases in area-averaged basal melting (150 %) when tides are included. -
Article Is Available On- Mand of Charles Wilkes, USN
The Cryosphere, 15, 663–676, 2021 https://doi.org/10.5194/tc-15-663-2021 © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License. Recent acceleration of Denman Glacier (1972–2017), East Antarctica, driven by grounding line retreat and changes in ice tongue configuration Bertie W. J. Miles1, Jim R. Jordan2, Chris R. Stokes1, Stewart S. R. Jamieson1, G. Hilmar Gudmundsson2, and Adrian Jenkins2 1Department of Geography, Durham University, Durham, DH1 3LE, UK 2Department of Geography and Environmental Sciences, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK Correspondence: Bertie W. J. Miles ([email protected]) Received: 16 June 2020 – Discussion started: 6 July 2020 Revised: 9 November 2020 – Accepted: 10 December 2020 – Published: 11 February 2021 Abstract. After Totten, Denman Glacier is the largest con- 1 Introduction tributor to sea level rise in East Antarctica. Denman’s catch- ment contains an ice volume equivalent to 1.5 m of global sea Over the past 2 decades, outlet glaciers along the coast- level and sits in the Aurora Subglacial Basin (ASB). Geolog- line of Wilkes Land, East Antarctica, have been thinning ical evidence of this basin’s sensitivity to past warm periods, (Pritchard et al., 2009; Flament and Remy, 2012; Helm et combined with recent observations showing that Denman’s al., 2014; Schröder et al., 2019), losing mass (King et al., ice speed is accelerating and its grounding line is retreating 2012; Gardner et al., 2018; Shen et al., 2018; Rignot et al., along a retrograde slope, has raised the prospect that its con- 2019) and retreating (Miles et al., 2013, 2016). -
Noaa 4860 DS1.Pdf
PROPOSED ACTION: Issuance of an Incidental Harassment Authorization to the National Science Foundation and Antarctic Support Contract to Take Marine Mammals by Harassment Incidental to a Low-Energy Marine Geophysical Survey in the Dumont d’Urville Sea off the Coast of East Antarctica, January to March 2014. TYPE OF STATEMENT: Environmental Assessment LEAD AGENCY: U.S. Department of Commerce, National Oceanic and Atmospheric Administration National Marine Fisheries Service RESPONSIBLE OFFICIAL: Donna S. Wieting, Director, Office of Protected Resources, National Marine Fisheries Service FOR FURTHER INFORMATION: Howard Goldstein National Marine Fisheries Service Office of Protected Resources, Permits and Conservation Division 1315 East West Highway Silver Spring, MD 20910 301-427-8401 LOCATION: Selected regions of the Dumont d’Urville Sea in International Waters of the Southern Ocean off the coast of East Antarctica (Approximately 64º South, between 95 and 135º East, and 65º South, between 140 to 165º East) ABSTRACT: This Environmental Assessment analyzes the environmental impacts of the National Marine Fisheries Service, Office of Protected Resources, Permits and Conservation Division’s proposal to issue an Incidental Harassment Authorization to the National Science Foundation and Antarctic Support Contract for the taking, by Level B harassment, of small numbers of marine mammals, incidental to conducting a low-energy marine geophysical survey in the Dumont d’Urville Sea, January to March 2014. CONTENTS List of Abbreviations or Acronyms -
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Federal Register/Vol. 70, No. 218/Monday, November 14, 2005
69098 Federal Register / Vol. 70, No. 218 / Monday, November 14, 2005 / Rules and Regulations * * * * * unless authorized by permit as well as hereby designated as Antarctic Specially [FR Doc. 05–22466 Filed 11–10–05; 8:45 am] the ACA’s blanket prohibition on Protected Areas (ASPA). The Antarctic BILLING CODE 6560–50–P damaging, removing or destroying a Conservation Act of 1978, as amended, Historic Site or Monument. No public prohibits, unless authorized by a permit, comment is needed the addition of these any person from entering or engaging in NATIONAL SCIENCE FOUNDATION areas or sites merely implements activities within an ASPA. Detailed measures adopted by the Treaty Parties maps and descriptions of the sites and 45 CFR Part 670 at various ATCM meetings. complete management plans can be Finally, these amendments correct obtained from the National Science Conservation of Antarctic Animals and typographical errors in the names and Foundation, Office of Polar Programs, Plants numerical listings of several specially National Science Foundation, Room protected areas previously published in AGENCY: National Science Foundation. 755, 4201 Wilson Boulevard, Arlington, § 670.29. Virginia 22230. ACTION: Direct final rule. Determinations ASPA 101 Taylor Rookery, Mac. SUMMARY: Pursuant to the Antarctic NSF has determined, under the Robertson Land, East Antarctica Conservation Act of 1978, The National ASPA 102 Rookery Islands, Holme criteria set forth in Executive Order Science Foundation (NSF) is amending Bay, Mac. Robertson Land, East 12866, that this rule is not a significant its regulations to designate additional Antarctica regulatory action requiring review by Antarctic Specially Protected Areas ASPA 103 Ardery Island and Odbert the Office of Management and Budget. -
1 Compiled by Mike Wing New Zealand Antarctic Society (Inc
ANTARCTIC 1 Compiled by Mike Wing US bulldozer, 1: 202, 340, 12: 54, New Zealand Antarctic Society (Inc) ACECRC, see Antarctic Climate & Ecosystems Cooperation Research Centre Volume 1-26: June 2009 Acevedo, Capitan. A.O. 4: 36, Ackerman, Piers, 21: 16, Vessel names are shown viz: “Aconcagua” Ackroyd, Lieut. F: 1: 307, All book reviews are shown under ‘Book Reviews’ Ackroyd-Kelly, J. W., 10: 279, All Universities are shown under ‘Universities’ “Aconcagua”, 1: 261 Aircraft types appear under Aircraft. Acta Palaeontolegica Polonica, 25: 64, Obituaries & Tributes are shown under 'Obituaries', ACZP, see Antarctic Convergence Zone Project see also individual names. Adam, Dieter, 13: 6, 287, Adam, Dr James, 1: 227, 241, 280, Vol 20 page numbers 27-36 are shared by both Adams, Chris, 11: 198, 274, 12: 331, 396, double issues 1&2 and 3&4. Those in double issue Adams, Dieter, 12: 294, 3&4 are marked accordingly. Adams, Ian, 1: 71, 99, 167, 229, 263, 330, 2: 23, Adams, J.B., 26: 22, Adams, Lt. R.D., 2: 127, 159, 208, Adams, Sir Jameson Obituary, 3: 76, A Adams Cape, 1: 248, Adams Glacier, 2: 425, Adams Island, 4: 201, 302, “101 In Sung”, f/v, 21: 36, Adamson, R.G. 3: 474-45, 4: 6, 62, 116, 166, 224, ‘A’ Hut restorations, 12: 175, 220, 25: 16, 277, Aaron, Edwin, 11: 55, Adare, Cape - see Hallett Station Abbiss, Jane, 20: 8, Addison, Vicki, 24: 33, Aboa Station, (Finland) 12: 227, 13: 114, Adelaide Island (Base T), see Bases F.I.D.S. Abbott, Dr N.D. -
AUTARKIC a NEWS BULLETIN Published Quarterly by the NEW ZEALAND ANTARCTIC SOCIETY (INC)
AUTARKIC A NEWS BULLETIN published quarterly by the NEW ZEALAND ANTARCTIC SOCIETY (INC) One of Argentina's oldest Antarctic stations. Almirante Brown, which was destroyed by fire on April 12. Situated in picturesque Paradise Bay on the west coast of the Antarctic Peninsula, it was manned first in 1951 by an Argentine Navy detachment, and became a scientific Station in 1955. Pnoto by Colin Monteath w_i -f n M#i R Registered at Post Office Headquarters, VOI. IU, IMO. D Wellington. New Zealand, as a magazine June, 1984 • . SOUTH SANDWICH It SOUTH GEORGIA / SOU1H ORKNEY Is ' \ ^^^----. 6 S i g n y l u K , / ' o O r c a d a s a r g SOUTH AMERICA ,/ Boroa jSyowa%JAPAN \ «rf 7 s a 'Molodezhnaya v/' A S O U T H « 4 i \ T \ U S S R s \ ' E N D E R B Y \ ) > * \ f(f SHETLANO | JV, W/DD Hallev Bay^ DRONNING MAUD LAND / S E A u k v ? C O A T S I d | / LAND T)/ \ Druzhnaya ^General Belgrano arg \-[ • \ z'f/ "i Mawson AlVTARCTIC-\ MAC ROBERTSON LANd\ \ *usi /PENINSUtA'^ [set mjp below) Sobral arg " < X ^ . D a v i s A u s t _ Siple — USA ;. Amundsen-Scon QUEEN MARY LAND ELLSWORTH " q U S A ') LAND ° Vostok ussr / / R o , s \ \ MARIE BYRD fee She/ r*V\ L LAND WILKES LAND Scon A * ROSSI"2*? Vanda n 7 SEA IJ^r 'victoria TERRE . LAND \^„ ADELIE ,> GEORGE V LJ ■Oumout d'Urville iran< 1 L*ningradsfcaya Ar ■ SI USSR,-'' \ ---'•BALIENYU ANTARCTIC PENINSULA 1 Teniente Matienzo arg 2 Esperanza arg 3 Almirante Brown arg 4 Petrel arg 5 Decepcion arg 6 Vicecomodoro Marambio arg * ANTARCTICA 7 Arturo Prat cm.le 8 Bernardo O'Higgms chile 9 Presidents Frei cmile 500 tOOOKiloflinnn 10 Stonington I.