Structure and Sedimentology of George VI Ice Shelf
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Sea Ice Engineering
Sea Ice Engineering theory and application Claude Daley Sea Ice Engineering 2017 –Notes ii © Claude G. Daley 2017 With components developed by D.B.Colbourne and B.W.T. Quinton All rights reserved. No reproduction, copy or transmission of this publication may be made without written permission. This draft is solely for the use of students registered in EN8074 and EN9096, in Winter 2016. All enquiries to: C.G. Daley Faculty of Engineering and Applied Science Memorial University of Newfoundland St. John’s Newfoundland and Labrador Canada A1B 3X5 Email: [email protected] Note: images, sketches and photo's are © C. Daley unless otherwise noted Cover image by C. Daley from GEM Simulation Program Sea Ice Engineering 2017 –Notes iii …………………………………… Contents Acknowledgments ........................................................................................................................... vi 1 Introducing Arctic Offshore Engineering ................................................................................ 1 1.1 Overview ......................................................................................................................... 1 1.2 Basics .............................................................................................................................. 1 1.3 Current Arctic Engineering Activities ............................................................................ 3 1.4 Transportation ................................................................................................................. 4 1.4.1 -
Rapid Access Ice Drill: a New Tool for Exploration of the Deep Antarctic Ice Sheets and Subglacial Geology
Journal of Glaciology (2016), Page 1 of 16 doi: 10.1017/jog.2016.97 © The Author(s) 2016. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons. org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited. Rapid Access Ice Drill: a new tool for exploration of the deep Antarctic ice sheets and subglacial geology JOHN W. GOODGE,1 JEFFREY P. SEVERINGHAUS2 1Department of Earth and Environmental Sciences, University of Minnesota, Duluth, MN 55812, USA 2Scripps Institution of Oceanography, UC San Diego, La Jolla, CA 92093, USA Correspondence: John W. Goodge <[email protected]> ABSTRACT. A new Rapid Access Ice Drill (RAID) will penetrate the Antarctic ice sheets in order to create borehole observatories and take cores in deep ice, the glacial bed and bedrock below. RAID is a mobile drilling system to make multiple long, narrow boreholes in a single field season in Antarctica. RAID is based on a mineral exploration-type rotary rock-coring system using threaded drill pipe to cut through ice using reverse circulation of a non-freezing fluid for pressure-compensation, maintenance of temperature and removal of ice cuttings. Near the bottom of the ice sheet, a wireline latching assem- bly will enable rapid coring of ice, the glacial bed and bedrock below. Once complete, boreholes will be kept open with fluid, capped and available for future down-hole measurement of temperature gradient, heat flow, ice chronology and ice deformation. RAID is designed to penetrate up to 3300 m of ice and take cores in <200 hours, allowing completion of a borehole and coring in ∼10 d at each site. -
Ice Core Science
PAGES International Project Offi ce Sulgeneckstrasse 38 3007 Bern Switzerland Tel: +41 31 312 31 33 Fax: +41 31 312 31 68 [email protected] Text Editing: Leah Christen News Layout: Christoph Kull Hubertus Fischer, Christoph Kull and Circulation: 4000 Thorsten Kiefer, Editors VOL.14, N°1 – APRIL 2006 Ice Core Science Ice cores provide unique high-resolution records of past climate and atmospheric composition. Naturally, the study area of ice core science is biased towards the polar regions but ice cores can also be retrieved from high .pages-igbp.org altitude glaciers. On the satellite picture are those ice cores covered in this issue of PAGES News (Modifi ed image of “The Blue Marble” (http://earthobservatory.nasa.gov) provided by kk+w - digital cartography, Kiel, Germany; Photos by PNRA/EPICA, H. Oerter, V. Lipenkov, J. Freitag, Y. Fujii, P. Ginot) www Contents 2 Announcements - Editorial: The future of ice core research - Dating of ice cores - Inside PAGES - Coastal ice cores - Antarctica - New on the bookshelf - WAIS Divide ice core - Antarctica - Tales from the fi eld - ITASE project - Antarctica - In memory of Nick Shackleton - New Dome Fuji ice core - Antarctica - Vostok ice drilling project - Antarctica 6 Program News - EPICA ice cores - Antarctica - The IPICS Initiative - 425-year precipitation history from Italy - New sea-fl oor drilling equipment - Sea-level changes: Black and Caspian Seas - Relaunch of the PAGES Databoard - Quaternary climate change in Arabia 12 National Page 40 Workshop Reports - Chile - 2nd Southern Deserts Conference - Chile - Climate change and tree rings - Russia 13 Science Highlights - Global climate during MIS 11 - Greece - NGT and PARCA ice cores - Greenland - NorthGRIP ice core - Greenland 44 Last Page - Reconstructions from Alpine ice cores - Calendar - Tropical ice cores from the Andes - PAGES Guest Scientist Program ISSN 1563–0803 The PAGES International Project Offi ce and its publications are supported by the Swiss and US National Science Foundations and NOAA. -
Rfvotsfroeat a NEWS BULLETI N
?7*&zmmt ■ ■ ^^—^mmmmml RfvOTsfroeaT A NEWS BULLETI N p u b l i s h e d q u a r t e r l y b y t h e NEW ZEALAND ANTARCTIC SOCIETY (INC) AN AUSTRALIAN FLAG FLIES AGAIN OVER THE MAIN HUT BUILT AT CAPE DENISON IN 1911 BY SIR DOUGLAS MAWSON'S AUSTRALASIAN ANTARC TIC EXPEDITION, 1911-14. WHEN MEMBERS OF THE AUSTRALIAN NATIONAL ANTARCTIC RESEARCH EXPEDITION VISITED THE HUT THEY FOUND IT FILLED WITH ICE AND SNOW BUT IN A FAIR STATE OF REPAIR AFTER MORE THAN 60 YEARS OF ANTARCTIC BLIZZARDS WITHOUT MAINTENANCE. Australian Antarctic Division Photo: D. J. Lugg Vol. 7 No. 2 Registered at Post Office Headquarters. Wellington, New Zealand, as a magazine. June, 1974 . ) / E I W W AUSTRALIA ) WELLINGTON / I ^JlCHRISTCHURCH I NEW ZEALAND TASMANIA * Cimpbtll I (NZ) • OSS DEPENDE/V/cy \ * H i l l e t t ( U S ) < t e , vmdi *N** "4#/.* ,i,rN v ( n z ) w K ' T M ANTARCTICA/,\ / l\ Ah U/?VVAY). XA Ten,.""" r^>''/ <U5SR) ,-f—lV(SA) ' ^ A ^ /j'/iiPI I (UK) * M«rion I (IA) DRAWN BY DEPARTMENT OF LANDS & SURVEY WELLINGTON. NEW ZEALAND. AUG 1969 3rd EDITION .-• v ©ex (Successor to "Antarctic News Bulletin") Vol. 7 No. 2 74th ISSUE June, 1974 Editor: J. M. CAFFIN, 35 Chepstow Avenue, Christchurch 5. Address all contributions, enquiries, etc., to the Editor. All Business Communications, Subscriptions, etc., to: Secretary, New Zealand Antarctic Society (Inc.), P.O. Box 1223, Christchurch, N.Z. CONTENTS ARTICLE TOURIST PARTIES 63, 64 POLAR ACTIVITIES NEW ZEALAND .. -
Aberystwyth University Speedup and Fracturing of George VI Ice Shelf
Aberystwyth University Speedup and fracturing of George VI Ice Shelf, Antarctic Peninsula Holt, Thomas Owen; Glasser, Neil Franklin; Quincey, Duncan Joseph; Siegfrieg, Matthew Published in: Cryosphere DOI: 10.5194/tc-7-797-2013 Publication date: 2013 Citation for published version (APA): Holt, T. O., Glasser, N. F., Quincey, D. J., & Siegfrieg, M. (2013). Speedup and fracturing of George VI Ice Shelf, Antarctic Peninsula. Cryosphere, 7, 797-816. https://doi.org/10.5194/tc-7-797-2013 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: 10. Oct. 2021 EGU Journal Logos (RGB) Open Access Open Access Open Access Advances in Annales Nonlinear Processes Geosciences Geophysicae in Geophysics -
King George VI Wikipedia Page
George VI of the United Kingdom - Wikipedia, the free encyclopedia 10/6/11 10:20 PM George VI of the United Kingdom From Wikipedia, the free encyclopedia (Redirected from King George VI) George VI (Albert Frederick Arthur George; 14 December 1895 – 6 February 1952) was King of the United Kingdom George VI and the Dominions of the British Commonwealth from 11 December 1936 until his death. He was the last Emperor of India, and the first Head of the Commonwealth. As the second son of King George V, he was not expected to inherit the throne and spent his early life in the shadow of his elder brother, Edward. He served in the Royal Navy and Royal Air Force during World War I, and after the war took on the usual round of public engagements. He married Lady Elizabeth Bowes-Lyon in 1923, and they had two daughters, Elizabeth and Margaret. George's elder brother ascended the throne as Edward VIII on the death of their father in 1936. However, less than a year later Edward revealed his desire to marry the divorced American socialite Wallis Simpson. British Prime Minister Stanley Baldwin advised Edward that for political and Formal portrait, c. 1940–46 religious reasons he could not marry Mrs Simpson and remain king. Edward abdicated in order to marry, and George King of the United Kingdom and the British ascended the throne as the third monarch of the House of Dominions (more...) Windsor. Reign 11 December 1936 – 6 February On the day of his accession, the parliament of the Irish Free 1952 State removed the monarch from its constitution. -
Jane Francis British Antarctic Survey
Pliocene environments on Antarctica from the fossil record Jane Francis British Antarctic Survey J.Francis NASA Fossil plants in Antarctic rocks highlight past warm climates <1% rock but with fossils Seymour Island, Antarctica J.Francis Ron Blakey maps From 100 million years ago (Cretaceous) the Antarctic continent was over the South Pole………… but Antarctica was warm and green Cretaceous petrified tree stumps in their original growth position Alexander Island, Antarctica petrified tree trunk Fossil tree encased in rock strata fossil soil Jodie Howe Fossil pollen, fossil leaves and fossil wood Ferns Fossil Cladophlebis Dicksonia antarctica Monkey Puzzle trees grew in Antarctica J.Francis Araucaria araucana, Monkey Puzzle, growing today in the Chilean Andes Araucaria araucana R. Carpenter 100 million year old forests, Alexander Island Based on PhD work of Jodie Howe & Jane Francis, University of Leeds and BAS geologists. Painted by Rob Nicholls. Housed at BAS Tosolini, Francis, Cantrill Many Antarctic fossil plants are related to plants that live today in South America, Australia and New Zealand - ancient ancestors of Southern Hemisphere vegetation under warm climates Nothofagus Embothrium Brachychiton Cool temp Warm temp Sub-tropical Antarctica 70 million years ago ©James McKay Ross McPhee, American Museum of Natural History Antarctica 50 million years ago (Eocene) – very warm Cooler climates allowed ice sheets to form and glaciers reached the coast by 40 million years ago Reconstruction of Miocene ice sheet, Antarctica. 14-23 my Gasson -
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rm tMJtWsmmw A NEWS BULLETIN p u b l i s h e d q u a r t e r l y b y t h e NEW ZEALAND ANTARCTIC SOCIETY (INC) •-**, AN EMPEROR PENGUIN LEADS ITS CHICKS ALONG THE ICE AT CAPE CROZIER, ROSS ISLAND. THE EIGHTH CONSULTATIVE MEETING OF THE ANTARCTIC TREATY NATIONS IN OSLO HAS RECOMMENDED THAT THE CAPE CROZIER LAND AREA WHERE THE ADELIE PENGUINS NEST, AND THE ADJACENT FAST ICE WHERE THE EMPEROR PENGUINS BREED ANNUALLY SHOULD BE DESIG NATED A SITE OF SPECIAL SCIENTIFIC INTEREST. Photo: R. C. Kingsbury. VrtlVOI. 7/, KinISO. 7 / RegisteredWellington, atNew Post Zealand, Office asHeadquarters. a magazine. Cpnipm|.praepteiTIDer, 1975IV/3 SOUTH GEORGIA SOUTH SANDWICH Is f S O U T H O R K N E Y I s x \ * £ & * * — ■ /o Orcadas arg M FALKLAND Is /6Signy I.u.k. , AV\60-W / ,' SOUTH AMERICA / / \ f B o r g a / N I S 4 S O U T H a & WEDDELL \ I SA I / %\ ',mWBSSr t y S H E T L A N D ^ - / Halley Bayf drowning maud land enderby ;n /SEA UK.v? COATSLd / LAND iy (General Belgrano arg ANTARCTIC iXf Mawson MAC ROBERTSON tAND /PENINSULA'^ (see map below) JSobral arg / Siple U S.A Amundsen-Scott I queen MARY LAND ^Mirny [ELLSWORTH"" LAND ° Vostok ussr \ .*/ Ross \"V Nfe ceShef -\? BYRD LAND/^_. \< oCasey Jj aust. WILKES LAND Russkaya USSR./ R O S S | n z j £ \ V d l , U d r / SEA I ^-/VICTORIA .TERRE ^ #^7 LAND \/ADELIE,,;? } G E O R G E \ I L d , t / _ A ? j r . -
2003 No. 323 ANTARCTICA the Antarctic (Amendment) Regulations
STATUTORY INSTRUMENTS 2003 No. 323 ANTARCTICA The Antarctic (Amendment) Regulations 2003 Made - - - - - 17th February 2003 Laid before Parliament 18th February 2003 Coming into force - - 11th March 2003 The Secretary of State for Foreign and Commonwealth AVairs, in exercise of his powers under sections 9(1), 25(1) and (3) and 32 of the Antarctic Act 1994(a), and of all other powers enabling him in that behalf, hereby makes the following Regulations: Citation and commencement 1. These Regulations may be cited as the Antarctic (Amendment) Regulations 2003 and shall come into force on 11th March 2003. The Antarctic Regulations 1995(b) (“the principal Regulations”), as amended(c), and these Regulations may be cited together as the Antarctic Regulations 1995 to 2003. Amendment of Schedule 1 to the principal Regulations 2. Schedule 1 to the principal Regulations shall be amended as follows: (a) There shall be added to Schedule 1 the areas listed and described in the Schedule to these Regulations. (b) There shall be deleted from Schedule 1 the area listed and described as “Antarctic Specially Protected Area No. 157 “Cape Royds Historic Site No. 15””. Valerie Amos For the Secretary of State for 17th February 2003 Foreign and Commonwealth AVairs (a) 1994 c. 15. (b) S.I. 1995/490. (c) S.I. 1995/2741, S.I. 1998/1007, S.I. 2000/2147 and S.I. 2002/2054. 1 SCHEDULE Regulation 2 RESTRICTED AREAS Antarctic Specially Protected Area No. 106 Cape Hallett, Northern Victoria Land, Ross Sea Lat. 72)19’S; Long. 170)16’E Cape Hallett is located at the southern end of Moubray Bay, Northern Victoria Land, in the western Ross Sea. -
Oceans, Antarctica
G9102 ATLANTIC OCEAN. REGIONS, NATURAL FEATURES, G9102 ETC. .G8 Guinea, Gulf of 2950 G9112 NORTH ATLANTIC OCEAN. REGIONS, BAYS, ETC. G9112 .B3 Baffin Bay .B34 Baltimore Canyon .B5 Biscay, Bay of .B55 Blake Plateau .B67 Bouma Bank .C3 Canso Bank .C4 Celtic Sea .C5 Channel Tunnel [England and France] .D3 Davis Strait .D4 Denmark Strait .D6 Dover, Strait of .E5 English Channel .F45 Florida, Straits of .F5 Florida-Bahamas Plateau .G4 Georges Bank .G43 Georgia Embayment .G65 Grand Banks of Newfoundland .G7 Great South Channel .G8 Gulf Stream .H2 Halten Bank .I2 Iberian Plain .I7 Irish Sea .L3 Labrador Sea .M3 Maine, Gulf of .M4 Mexico, Gulf of .M53 Mid-Atlantic Bight .M6 Mona Passage .N6 North Sea .N7 Norwegian Sea .R4 Reykjanes Ridge .R6 Rockall Bank .S25 Sabine Bank .S3 Saint George's Channel .S4 Serpent's Mouth .S6 South Atlantic Bight .S8 Stellwagen Bank .T7 Traena Bank 2951 G9122 BERMUDA. REGIONS, NATURAL FEATURES, G9122 ISLANDS, ETC. .C3 Castle Harbour .C6 Coasts .G7 Great Sound .H3 Harrington Sound .I7 Ireland Island .N6 Nonsuch Island .S2 Saint David's Island .S3 Saint Georges Island .S6 Somerset Island 2952 G9123 BERMUDA. COUNTIES G9123 .D4 Devonshire .H3 Hamilton .P3 Paget .P4 Pembroke .S3 Saint Georges .S4 Sandys .S5 Smiths .S6 Southampton .W3 Warwick 2953 G9124 BERMUDA. CITIES AND TOWNS, ETC. G9124 .H3 Hamilton .S3 Saint George .S6 Somerset 2954 G9132 AZORES. REGIONS, NATURAL FEATURES, G9132 ISLANDS, ETC. .A3 Agua de Pau Volcano .C6 Coasts .C65 Corvo Island .F3 Faial Island .F5 Flores Island .F82 Furnas Volcano .G7 Graciosa Island .L3 Lages Field .P5 Pico Island .S2 Santa Maria Island .S3 Sao Jorge Island .S4 Sao Miguel Island .S46 Sete Cidades Volcano .T4 Terceira Island 2955 G9133 AZORES. -
Glacial History of the Antarctic Peninsula Since the Last Glacial Maximum—A Synthesis
Glacial history of the Antarctic Peninsula since the Last Glacial Maximum—a synthesis Ólafur Ingólfsson & Christian Hjort The extent of ice, thickness and dynamics of the Last Glacial Maximum (LGM) ice sheets in the Antarctic Peninsula region, as well as the pattern of subsequent deglaciation and climate development, are not well constrained in time and space. During the LGM, ice thickened considerably and expanded towards the middle–outer submarine shelves around the Antarctic Peninsula. Deglaciation was slow, occurring mainly between >14 Ky BP (14C kilo years before present) and ca. 6 Ky BP, when interglacial climate was established in the region. After a climate optimum, peaking ca. 4 - 3 Ky BP, a cooling trend started, with expanding glaciers and ice shelves. Rapid warming during the past 50 years may be causing instability to some Antarctic Peninsula ice shelves. Ó. Ingólfsson, The University Courses on Svalbard, Box 156, N-9170 Longyearbyen, Norway; C. Hjort, Dept. of Quaternary Geology, Lund University, Sölvegatan 13, SE-223 63 Lund, Sweden. The Antarctic Peninsula (Fig. 1) encompasses one Onshore evidence for the LGM ice of the most dynamic climate systems on Earth, extent where the natural systems respond rapidly to climatic changes (Smith et al. 1999; Domack et al. 2001a). Signs of accelerating retreat of ice shelves, Evidence of more extensive ice cover than today in combination with rapid warming (>2 °C) over is present on ice-free lowland areas along the the past 50 years, have raised concerns as to the Antarctic Peninsula and its surrounding islands, future stability of the glacial system (Doake et primarily in the form of glacial drift, erratics al. -
Global Southern Limit of Flowering Plants and Moss Peat Accumulation Peter Convey,1 David W
RESEARCH/REVIEW ARTICLE Global southern limit of flowering plants and moss peat accumulation Peter Convey,1 David W. Hopkins,2,3,4 Stephen J. Roberts1 & Andrew N. Tyler3 1 British Antarctic Survey, National Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, UK 2 Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK 3 Environmental Radioactivity Laboratory, School of Biological and Environmental Sciences, University of Stirling, Stirling FK9 4LA, UK 4 School of Life Sciences, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, UK Keywords Abstract Antarctic plants; distribution limits; peat accumulation; dating. The ecosystems of the western Antarctic Peninsula, experiencing amongst the most rapid trends of regional climate warming worldwide, are important ‘‘early Correspondence warning’’ indicators for responses expected in more complex systems else- Peter Convey, British Antarctic Survey, where. Central among responses attributed to this regional warming are National Environment Research Council, widely reported population and range expansions of the two native Antarctic High Cross, Madingley Road, Cambridge flowering plants, Deschampsia antarctica and Colobanthus quitensis. However, CB3 0ET, UK. E-mail: [email protected] confirmation of the predictions of range expansion requires baseline knowl- edge of species distributions. We report a significant southwards and westwards extension of the known natural distributions of both plant species in this region, along with several range extensions in an unusual moss community, based on a new survey work in a previously unexamined and un-named low altitude peninsula at 69822.0?S71850.7?W in Lazarev Bay, north-west Alexander Island, southern Antarctic Peninsula. These plant species therefore have a significantly larger natural range in the Antarctic than previously thought.