EXPEDITION PROGRAM ANTARCTICA (ANT – Land 2014/2015)
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Layering of Surface Snow and Firn at Kohnen Station, Antarctica – Noise Or Seasonal Signal?
View metadata, citation and similar papers at core.ac.uk brought to you by CORE Confidential manuscript submitted to replace this text with name of AGU journalprovided by Electronic Publication Information Center Layering of surface snow and firn at Kohnen Station, Antarctica – noise or seasonal signal? Thomas Laepple1, Maria Hörhold2,3, Thomas Münch1,5, Johannes Freitag4, Anna Wegner4, Sepp Kipfstuhl4 1Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473 Potsdam, Germany 2Institute of Environmental Physics, University of Bremen, Otto-Hahn-Allee 1, D-28359 Bremen 3now at Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Alten Hafen 26, 27568 Bremerhaven, Germany 4Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Alten Hafen 26, 27568 Bremerhaven, Germany 5Institute of Physics and Astronomy, University of Potsdam, Karl-Liebknecht-Str. 24/25, 14476 Potsdam, Germany Corresponding author: Thomas Laepple ([email protected]) Extensive dataset of vertical and horizontal firn density variations at EDML, Antarctica Even in low accumulation regions, the density in the upper firn exhibits a seasonal cycle Strong stratigraphic noise masks the seasonal cycle when analyzing single firn cores Abstract The density of firn is an important property for monitoring and modeling the ice sheet as well as to model the pore close-off and thus to interpret ice core-based greenhouse gas records. One feature, which is still in debate, is the potential existence of an annual cycle of firn density in low-accumulation regions. Several studies describe or assume seasonally successive density layers, horizontally evenly distributed, as seen in radar data. -
Ilha Rei George, Antártica Marítima) Entre 1986 E 2011
Revista Brasileira de Meteorologia, v.29, n.3, 379 - 388, 2014 http://dx.doi.org/10.1590/0102-778620120439 VARIAÇÕES DA FRENTE DA GELEIRA POLAR CLUB, PENÍNSULA POTTER (ILHA REI GEORGE, ANTÁRTICA MARÍTIMA) ENTRE 1986 E 2011 EVERTON LUÍS POELKING1, ANDRÉ MEDEIROS DE ANDRADE2, GONÇALO BRITO T. G. VIEIRA3, CARLOS ERNESTO G. R. SCHAEFER4, ELPÍDIO INÁCIO FERNANDES FILHO4 1Universidade Federal do Recôncavo da Bahia (UFRB), Cruz das Almas, BA, Brasil 2Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brasil 3Universidade de Lisboa (UL), Lisboa, Portugal 4Universidade Federal de Viçosa (UFV), Viçosa, MG, Brasil [email protected], [email protected], [email protected], [email protected], elpidio@ufv. br Recebido Fevereiro de 2012 - Aceito Novembro de 2013 RESUMO As mudanças ambientais, especialmente na criosfera, podem resultar em amplas consequências globais, sendo o estudo de geleiras das regiões polares estratégicos para analisar áreas sensíveis às mudanças climáticas. Neste trabalho foram analisadas as taxas de mudança da frente da geleira Polar Club e comparadas com a variabilidade interanual da temperatura do ar, na Península Potter, ilha Rei George, a fim de compreender o impacto direto das alterações do clima local na dinâmica das áreas livres de gelo. Foi utilizada uma série de dez cenas de imagens do satélite Landsat e dados de temperatura do ar superficial entre 1986 e 2011. Os resultados evidenciam uma tendência no aumento na temperatura do ar de 0,04 ºC por ano, o que resultou no incremento de 1,03 ºC nas temperaturas médias do ar para o período de 26 anos analisados. -
Plan Anual Antártico Del Programa Antártico Argentino 2018-2019
Programa Antártico Argentino Plan Anual Antártico 2018-2019 INTRODUCCIÓN La Argentina reivindica soberanía sobre el Sector Antártico Argentino, comprendido entre los meridianos 25° y 74° de longitud Oeste al sur del paralelo de 60° de latitud Sur, con fundamento en títulos históricos, geográficos, geológicos y jurídicos. La Argentina tiene presencia permanente e ininterrumpida en la Antártida desde el 22 de febrero de 1904, en que se estableciera la primera estación científica (Base Orcadas) en la Isla Laurie, Archipiélago de las Islas Orcadas del Sur. La Argentina, por tanto, tiene la presencia continua más antigua en la Antártida. La Argentina tiene seis bases permanentes (Carlini, Orcadas, Esperanza, Marambio, San Martín y Belgrano II) y siete bases temporarias (Brown, Primavera, Decepción, Melchior, Matienzo, Cámara y Petrel). Todas están situadas en el Sector Antártico Argentino. La Dirección Nacional del Antártico administra dos de ellas (las Bases Carlini y Brown) y el Ministerio de Defensa, a través del Comando Conjunto Antártico, administra las otras once. La Argentina es uno de los doce países que participaron en la Conferencia de Washington sobre la Antártida de 1959, y eso la llevó a ser uno de los doce signatarios originarios del Tratado Antártico. El Tratado establece que la Antártida se utilizará exclusivamente para fines pacíficos y erige a la ciencia en el centro de la actividad antártica. El artículo IV del Tratado resguarda adecuadamente las reivindicaciones de soberanía en la Antártida. Por tanto, uno de los ejes de la política exterior argentina es continuo fortalecimiento del conjunto de normas surgidas a partir del Tratado Antártico. Los lineamientos de la Política Antártica Nacional (PAN) están definidos por el Decreto 2316/90, cuyo objetivo principal es el P á g i n a 2 | 265 Programa Antártico Argentino Plan Anual Antártico 2018-2019 afianzamiento de los derechos argentinos de soberanía en la Antártida. -
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. -
Antarctic Treaty
ANTARCTIC TREATY REPORT OF THE NORWEGIAN ANTARCTIC INSPECTION UNDER ARTICLE VII OF THE ANTARCTIC TREATY FEBRUARY 2009 Table of Contents Table of Contents ............................................................................................................................................... 1 1. Introduction ................................................................................................................................................... 2 1.1 Article VII of the Antarctic Treaty .................................................................................................................... 2 1.2 Past inspections under the Antarctic Treaty ................................................................................................... 2 1.3 The 2009 Norwegian Inspection...................................................................................................................... 3 2. Summary of findings ...................................................................................................................................... 6 2.1 General ............................................................................................................................................................ 6 2.2 Operations....................................................................................................................................................... 7 2.3 Scientific research .......................................................................................................................................... -
The Antarctic Treaty Cm 8841
The Antarctic Treaty Measures adopted at the Thirty-sixth Consultative Meeting held at Brussels, 20 – 29 May 2013 Presented to Parliament by the Secretary of State for Foreign and Commonwealth Affairs by Command of Her Majesty March 2014 Cm 8841 © Crown copyright 2014 You may re-use this information (excluding logos) free of charge in any format or medium, under the terms of the Open Government Licence v.2. To view this licence visit www.nationalarchives.gov.uk/doc/open-government-licence/version/2/ or email [email protected] This publication is available at www.gov.uk/government/publications Any enquiries regarding this publication should be sent to us at Treaty Section, Foreign and Commo nwealth Office, King Charles Street, London, SW1A 2AH Print ISBN 9781474101134 Web ISBN 9781474101141 Printed in the UK by the Williams Lea Group on behalf of the Controller of Her Majesty’s Stationery Office ID P002631486 03/14 Printed on paper containing 30% recycled fibre content minimum MEASURES ADOPTED AT THE THIRTY-SIXTH ANTARCTIC TREATY CONSULTATIVE MEETING Brussels, Belgium, 20-29 May 2013 The Measures1 adopted at the Thirty-sixth Antarctic Treaty Consultative Meeting are reproduced below from the Final Report of the Meeting. In accordance with Article IX, paragraph 4, of the Antarctic Treaty, the Measures adopted at Consultative Meetings become effective upon approval by all Contracting Parties whose representatives were entitled to participate in the meeting at which they were adopted (i.e. all the Consultative Parties). The full text of the Final Report of the Meeting, including the Decisions and Resolutions adopted at that Meeting and colour copies of the maps found in this command paper, is available on the website of the Antarctic Treaty Secretariat at www.ats.aq/documents. -
1 Inhabiting the Antarctic Jessica O'reilly & Juan Francisco Salazar
Inhabiting the Antarctic Jessica O’Reilly & Juan Francisco Salazar Introduction The Polar Regions are places that are part fantasy and part reality.1 Antarctica was the last continent to be discovered (1819–1820) and the only landmass never inhabited by indigenous people.2 While today thousands of people live and work there at dozens of national bases, Antarctica has eluded the anthropological imagination. In recent years, however, as anthropology has turned its attention to extreme environments, scientific field practices, and ethnographies of global connection and situated globalities, Antarctica has become a fitting space for anthropological analysis and ethnographic research.3 The idea propounded in the Antarctic Treaty System—that Antarctica is a place of science, peace, environmental protection, and international cooperation—is prevalent in contemporary representations of the continent. Today Antarctic images are negotiated within a culture of global environmentalism and international science. Historians, visual artists, and journalists who have spent time in the Antarctic have provided rich accounts of how these principles of global environmentalism and 1 See for instance Adrian Howkins, The Polar Regions: An Environmental History (Cambridge, UK: Polity, 2016). 2 Archaeological records have shown evidence of human occupation of Patagonia and the South American sub-Antarctic region (42˚S to Cape Horn 56˚S) dating back to the Pleistocene–Holocene transition (13,000–8,000 years before present). The first human inhabitants south of 60˚S were British, United States, and Norwegian whalers and sealers who originally settled in Antarctic and sub-Antarctic islands during the early 1800s, often for relatively extended periods of time, though never permanently 3 See for instance Jessica O’Reilly, The Technocratic Antarctic: An Ethnography of Scientific Expertise and Environmental Governance (Ithaca, NY: Cornell University Press, 2017); Juan Francisco Salazar, “Geographies of Place-making in Antarctica: An Ethnographic Approach,” The Polar Journal 3, no. -
Multi-Year Analysis of Distributed Glacier Mass Balance Modelling and Equilibrium Line Altitude on King George Island, Antarctic Peninsula
The Cryosphere, 12, 1211–1232, 2018 https://doi.org/10.5194/tc-12-1211-2018 © Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License. Multi-year analysis of distributed glacier mass balance modelling and equilibrium line altitude on King George Island, Antarctic Peninsula Ulrike Falk1,2, Damián A. López2,3, and Adrián Silva-Busso4,5 1Climate Lab, Institute for Geography, Bremen University, Bremen, Germany 2Center for Remote Sensing of Land Surfaces (ZFL), Bonn University, Bonn, Germany 3Institute of Geology and Mineralogy, University Cologne, Cologne, Germany 4Faculty of Exact and Natural Sciences, University Buenos Aires, Buenos Aires, Argentina 5Instituto Nacional de Agua (INA), Ezeiza, Buenos Aires, Argentina Correspondence: Ulrike Falk ([email protected]) Received: 12 October 2017 – Discussion started: 1 December 2017 Revised: 15 March 2018 – Accepted: 19 March 2018 – Published: 10 April 2018 Abstract. The South Shetland Islands are located at the seen over the course of the 5-year model run period. The win- northern tip of the Antarctic Peninsula (AP). This region ter accumulation does not suffice to compensate for the high was subject to strong warming trends in the atmospheric sur- variability in summer ablation. The results are analysed to as- face layer. Surface air temperature increased about 3K in sess changes in meltwater input to the coastal waters, specific 50 years, concurrent with retreating glacier fronts, an in- glacier mass balance and the equilibrium line altitude (ELA). crease in melt areas, ice surface lowering and rapid break- The Fourcade Glacier catchment drains into Potter cove, has up and disintegration of ice shelves. -
Internal Structure of the Ice Sheet Between Kohnen Station and Dome Fuji, Antarctica, Revealed by Airborne Radio-Echo Sounding
Annals of Glaciology 54(64) 2013 doi:10.3189/2013AoG64A113 163 Internal structure of the ice sheet between Kohnen station and Dome Fuji, Antarctica, revealed by airborne radio-echo sounding Daniel STEINHAGE, Sepp KIPFSTUHL, Uwe NIXDORF, Heinz MILLER Alfred-Wegener-Institut Helmholtz-Zentrum fu¨r Polar und Meeresforschung, Bremerhaven, Germany E-mail: [email protected] ABSTRACT. This study aims to demonstrate that deep ice cores can be synchronized using internal horizons in the ice between the drill sites revealed by airborne radio-echo sounding (RES) over a distance of >1000 km, despite significant variations in glaciological parameters, such as accumulation rate between the sites. In 2002/03 a profile between the Kohnen station and Dome Fuji deep ice-core drill sites, Antarctica, was completed using airborne RES. The survey reveals several continuous internal horizons in the RES section over a length of 1217 km. The layers allow direct comparison of the deep ice cores drilled at the two stations. In particular, the counterpart of a visible layer observed in the Kohnen station (EDML) ice core at 1054 m depth has been identified in the Dome Fuji ice core at 575 m depth using internal RES horizons. Thus the two ice cores can be synchronized, i.e. the ice at 1560 m depth (at the bottom of the 2003 EDML drilling) is 49 ka old according to the Dome Fuji age/depth scale, using the traced internal layers presented in this study. INTRODUCTION At sites where the accumulation is high enough, the upper During recent decades several deep ice cores in Antarctica parts of ice cores can be dated by counting annual layers, and Greenland have been drilled in order to study palaeo- revealed by measurements of the electrical or chemical climate. -
Comparison of Different Methods to Retrieve Optical-Equivalent Snow Grain Size in Central Antarctica
Comparison of different methods to retrieve optical-equivalent snow grain size in central Antarctica Tim Carlsen, Gerit Birnbaum, André Ehrlich, Johannes Freitag, Georg Heygster, Larysa Istomina, Sepp Kipfstuhl, Anaïs Orsi, Michael Schäfer, Manfred Wendisch To cite this version: Tim Carlsen, Gerit Birnbaum, André Ehrlich, Johannes Freitag, Georg Heygster, et al.. Comparison of different methods to retrieve optical-equivalent snow grain size in central Antarctica. The Cryosphere, Copernicus 2017, 11 (6), pp.2727-2741. 10.5194/tc-11-2727-2017. hal-03225815 HAL Id: hal-03225815 https://hal.archives-ouvertes.fr/hal-03225815 Submitted on 16 May 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. The Cryosphere, 11, 2727–2741, 2017 https://doi.org/10.5194/tc-11-2727-2017 © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. Comparison of different methods to retrieve optical-equivalent snow grain size in central Antarctica Tim Carlsen1, Gerit Birnbaum2, André Ehrlich1, Johannes Freitag2, Georg Heygster3, Larysa -
Anta272.Txt F*************************************************************************** * W.A.P
anta272.txt f*************************************************************************** * W.A.P. Worldwide Antarctic Program * * Antarctic, Sub-Antarctic and Peri-Antarctic News * * SINCE 1979 * * * * Bases, Activities and Informations for * * Amateur Radio Stations and Antarctic Enthusiasts * * Bulletin nr.272 (24 February 2017) * * * * WAP Antarctic Bulletin is a free of charge information sheet * * edited by Max IK1GPG, Gianni I1HYW and Betty IK1QFM @ WAP Staff * * * * WEB Page : http://www.waponline.it/ * * * * * * Others Antarctic WEB Pages with our WAP Bulletin * * http://www.qsl.net/f5nod/antarctica.html * * * * Antarctica Mailing List * * http://groups.yahoo.com/group/antarctica_list/ * ---------------------------------------------------------------------------- * W.A.P. Special Edition * * 22 issues are available at WAP web site !! * * We are waiting volounteers to continue the Monthly Issues pubblication * * Those interested to do this work for free, PSE contact IK1GPG or I1HYW * ---------------------------------------------------------------------------- * W.A.P. - W.A.D.A. (Worked Antarctic Directory Award) * * Antarctic, Sub-Antarctic and Peri-Antarctic Directory * * (16th Edition - Release 1.29 - 04 January 2017) * * List of more than 873 Bases, Camp, Hut, Refuge and Station used in * * Antarctica since 1945. * * * * W.A.P. - W.A.C.A. (Worked Antarctic Callsigns Award) * * Antarctic, Sub-Antarctic and Peri-Antarctic Directory * * (16th Edition - Release 1.29 - 04 January 2017) * * List of more than 4.076 Callsigns used -
Waba Directory 2003
DIAMOND DX CLUB www.ddxc.net WABA DIRECTORY 2003 1 January 2003 DIAMOND DX CLUB WABA DIRECTORY 2003 ARGENTINA LU-01 Alférez de Navió José María Sobral Base (Army)1 Filchner Ice Shelf 81°04 S 40°31 W AN-016 LU-02 Almirante Brown Station (IAA)2 Coughtrey Peninsula, Paradise Harbour, 64°53 S 62°53 W AN-016 Danco Coast, Graham Land (West), Antarctic Peninsula LU-19 Byers Camp (IAA) Byers Peninsula, Livingston Island, South 62°39 S 61°00 W AN-010 Shetland Islands LU-04 Decepción Detachment (Navy)3 Primero de Mayo Bay, Port Foster, 62°59 S 60°43 W AN-010 Deception Island, South Shetland Islands LU-07 Ellsworth Station4 Filchner Ice Shelf 77°38 S 41°08 W AN-016 LU-06 Esperanza Base (Army)5 Seal Point, Hope Bay, Trinity Peninsula 63°24 S 56°59 W AN-016 (Antarctic Peninsula) LU- Francisco de Gurruchaga Refuge (Navy)6 Harmony Cove, Nelson Island, South 62°18 S 59°13 W AN-010 Shetland Islands LU-10 General Manuel Belgrano Base (Army)7 Filchner Ice Shelf 77°46 S 38°11 W AN-016 LU-08 General Manuel Belgrano II Base (Army)8 Bertrab Nunatak, Vahsel Bay, Luitpold 77°52 S 34°37 W AN-016 Coast, Coats Land LU-09 General Manuel Belgrano III Base (Army)9 Berkner Island, Filchner-Ronne Ice 77°34 S 45°59 W AN-014 Shelves LU-11 General San Martín Base (Army)10 Barry Island in Marguerite Bay, along 68°07 S 67°06 W AN-016 Fallières Coast of Graham Land (West), Antarctic Peninsula LU-21 Groussac Refuge (Navy)11 Petermann Island, off Graham Coast of 65°11 S 64°10 W AN-006 Graham Land (West); Antarctic Peninsula LU-05 Melchior Detachment (Navy)12 Isla Observatorio