FIXED WING LANDING SITES ^ LC 130 Landing Sites ANTARCTICA
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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 -
Rapid Transport of Ash and Sulfate from the 2011 Puyehue-Cordón
PUBLICATIONS Journal of Geophysical Research: Atmospheres RESEARCH ARTICLE Rapid transport of ash and sulfate from the 2011 10.1002/2017JD026893 Puyehue-Cordón Caulle (Chile) eruption Key Points: to West Antarctica • Ash and sulfate from the June 2011 Puyehue-Cordón Caulle eruption were Bess G. Koffman1,2 , Eleanor G. Dowd1 , Erich C. Osterberg1 , David G. Ferris1, deposited in West Antarctica 3 3 3,4 1 • Depositional phasing and duration Laura H. Hartman , Sarah D. Wheatley , Andrei V. Kurbatov , Gifford J. Wong , 5 6 3,4 4 suggest rapid transport through the Bradley R. Markle , Nelia W. Dunbar , Karl J. Kreutz , and Martin Yates troposphere • Ash/sulfate phasing, ash size 1Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire, USA, 2Now at Department of Geology, Colby distributions, and geochemistry College, Waterville, Maine, USA, 3Climate Change Institute, University of Maine, Orono, Maine, USA, 4School of Earth and distinguish this midlatitude eruption Climate Sciences, University of Maine, Orono, Maine, USA, 5Department of Earth and Space Sciences, University of from low- and high-latitude eruptions Washington, Seattle, Washington, USA, 6New Mexico Bureau of Geology and Mineral Resources, Socorro, New Mexico, USA Supporting Information: • Supporting Information S1 Abstract The Volcanic Explosivity Index 5 eruption of the Puyehue-Cordón Caulle volcanic complex (PCC) in central Chile, which began 4 June 2011, provides a rare opportunity to assess the rapid transport and Correspondence to: deposition of sulfate and ash from a midlatitude volcano to the Antarctic ice sheet. We present sulfate, B. G. Koffman, [email protected] microparticle concentrations of fine-grained (~5 μm diameter) tephra, and major oxide geochemistry, which document the depositional sequence of volcanic products from the PCC eruption in West Antarctic snow and shallow firn. -
Integrated Tephrochonology Copyedited
U.S. Geological Survey and The National Academies; USGS OFR-2007-xxxx, Extended Abstract.yyy, 1- Integrated tephrochronology of the West Antarctic region- Implications for a potential tephra record in the West Antarctic Ice Sheet (WAIS) Divide Ice Core N.W. Dunbar,1 W.C. McIntosh,1 A.V. Kurbatov,2 and T.I Wilch 3 1NMGB/EES Department, New Mexico Tech, Socorro NM, 87801, USA ( [email protected] , [email protected] ) 2Climate Change Institute 303 Bryand Global Sciences Center, Orono, ME, 04469, USA ([email protected]) 3Department of Geological Sciences, Albion College, Albion MI, 49224, USA ( [email protected] ) Summary Mount Berlin and Mt. Takahe, two West Antarctica volcanic centers have produced a number of explosive, ashfall generating eruptions over the past 500,000 yrs. These eruptions dispersed volcanic ash over large areas of the West Antarctic ice sheet. Evidence of these eruptions is observed at two blue ice sites (Mt. Waesche and Mt. Moulton) as well as in the Siple Dome and Byrd (Palais et al., 1988) ice cores. Geochemical correlations between tephra sampled at the source volcanoes, at blue ice sites, and in the Siple Dome ice core suggest that at least some of the eruptions covered large areas of the ice sheet with a volcanic ash, and 40 Ar/ 39 Ar dating of volcanic material provides precise timing when these events occurred. Volcanic ash from some of these events expected to be found in the WAIS Divide ice core, providing chronology and inter-site correlation. Citation: Dunbar, N.W., McIntosh, W.C., Kurbatov, A., and T.I Wilch (2007), Integrated tephrochronology of the West Antarctic region- Implications for a potential tephra record in the West Antarctic Ice Sheet (WAIS) Divide Ice Core, in Antarctica: A Keystone in a Changing World – Online Proceedings of the 10 th ISAES X, edited by A. -
Mcmurdo Dry Valleys, Southern Victoria Land
Measure 1 (2004) Annex Management Plan for Antarctic Specially Managed Area No. 2 MCMURDO DRY VALLEYS, SOUTHERN VICTORIA LAND 1. Description of values to be protected and activities to be managed The McMurdo Dry Valleys are characterized as the largest relatively ice-free region in Antarctica with approximately thirty percent of the ground surface largely free of snow and ice. The region encompasses a cold desert ecosystem, whose climate is not only cold and extremely arid (in the Wright Valley the mean annual temperature is –19.8°C and annual precipitation is less than 100 mm water equivalent), but also windy. The landscape of the Area contains glaciers, mountain ranges, ice-covered lakes, meltwater streams, arid patterned soils and permafrost, sand dunes, and interconnected watershed systems. These watersheds have a regional influence on the McMurdo Sound marine ecosystem. The Area’s location, where large-scale seasonal shifts in the water phase occur, is of great importance to the study of climate change. Through shifts in the ice-water balance over time, resulting in contraction and expansion of hydrological features and the accumulations of trace gases in ancient snow, the McMurdo Dry Valley terrain also contains records of past climate change. The extreme climate of the region serves as an important analogue for the conditions of ancient Earth and contemporary Mars, where such climate may have dominated the evolution of landscape and biota. The Area is characterized by unique ecosystems of low biodiversity and reduced food web complexity. However, as the largest ice-free region in Antarctica, the McMurdo Dry Valleys also contain relatively diverse habitats compared with other ice-free areas. -
The Human Footprint of the IPY 2007-2008 in Antarctica
IP 86 Agenda Item: ATCM 10 CEP 5 Presented by: ASOC Original: English The Human Footprint of the IPY 2007-2008 in Antarctica Attachments: 1 IP 86 The Human Footprint of the IPY 2007-2008 in Antarctica Information Paper Submitted by ASOC to ATCM XXX (CEP Agenda Item 5; ATCM Agenda Item 10) Abstract The International Polar Year (IPY) 2007-2008 is ambitious in scope and scale. At least 350 research activities with Antarctic or bipolar focus will take place during the IPY period of March 2007-March 2009. 82% (or 286) of them are planning to conduct fieldwork in Antarctica (Fig. 1a). 105 activities are planning to leave behind physical infrastructure, ranging from extensive arrays of instrumentation to new facilities. The Antarctic Treaty Secretariat’s database of environmental impact assessments lists only 7 completed assessments that are directly linked to science or logistics that are planned for the IPY. During the IPY, research and its corresponding logistical support activity will intensify around existing centers of research, such as the Antarctic Peninsula, Dronning Maud Land, Prydz Bay and the Weddell and Ross Seas. A number of large-scale research activities has also been planned in areas which have been hitherto seldom accessed, including the Gamburtsev Mountains in East Antarctica, the Amundsen Sea embayment and the West Antarctic ice sheet and subglacial lakes (Fig. 2). Many of them have been planned as the precursor of long-term research programs. In view of the ensemble of the research projects that have been endorsed, the IPY is likely to lead to: ! a direct increase in human activity in Antarctica; ! an increase in infrastructure in Antarctica; ! an increased pressure on Antarctica’s wilderness values; ! an increased level of interest in Antarctica, which can indirectly generate more activities other than scientific research, adding to the current trend of rapid growth and diversification of Antarctic tourism. -
U.S. Advance Exchange of Operational Information, 2005-2006
Advance Exchange of Operational Information on Antarctic Activities for the 2005–2006 season United States Antarctic Program Office of Polar Programs National Science Foundation Advance Exchange of Operational Information on Antarctic Activities for 2005/2006 Season Country: UNITED STATES Date Submitted: October 2005 SECTION 1 SHIP OPERATIONS Commercial charter KRASIN Nov. 21, 2005 Depart Vladivostok, Russia Dec. 12-14, 2005 Port Call Lyttleton N.Z. Dec. 17 Arrive 60S Break channel and escort TERN and Tanker Feb. 5, 2006 Depart 60S in route to Vladivostok U.S. Coast Guard Breaker POLAR STAR The POLAR STAR will be in back-up support for icebreaking services if needed. M/V AMERICAN TERN Jan. 15-17, 2006 Port Call Lyttleton, NZ Jan. 24, 2006 Arrive Ice edge, McMurdo Sound Jan 25-Feb 1, 2006 At ice pier, McMurdo Sound Feb 2, 2006 Depart McMurdo Feb 13-15, 2006 Port Call Lyttleton, NZ T-5 Tanker, (One of five possible vessels. Specific name of vessel to be determined) Jan. 14, 2006 Arrive Ice Edge, McMurdo Sound Jan. 15-19, 2006 At Ice Pier, McMurdo. Re-fuel Station Jan. 19, 2006 Depart McMurdo R/V LAURENCE M. GOULD For detailed and updated schedule, log on to: http://www.polar.org/science/marine/sched_history/lmg/lmgsched.pdf R/V NATHANIEL B. PALMER For detailed and updated schedule, log on to: http://www.polar.org/science/marine/sched_history/nbp/nbpsched.pdf SECTION 2 AIR OPERATIONS Information on planned air operations (see attached sheets) SECTION 3 STATIONS a) New stations or refuges not previously notified: NONE b) Stations closed or refuges abandoned and not previously notified: NONE SECTION 4 LOGISTICS ACTIVITIES AFFECTING OTHER NATIONS a) McMurdo airstrip will be used by Italian and New Zealand C-130s and Italian Twin Otters b) McMurdo Heliport will be used by New Zealand and Italian helicopters c) Extensive air, sea and land logistic cooperative support with New Zealand d) Twin Otters to pass through Rothera (UK) upon arrival and departure from Antarctica e) Italian Twin Otter will likely pass through South Pole and McMurdo. -
2006 NSIDC Annual Report
National Snow and Ice Data Center World Data Center for Glaciology, Boulder Annual Report 2006 Supporting Cryospheric Research Since 1976 National Snow and Ice Data Center World Data Center for Glaciology, Boulder Annual Report 2006 Cover image captions (clockwise from upper left) During the IceTrek expedition, team members tow a sled with equipment to install on an Antarctic iceberg. (Courtesy Ted Scambos, NSIDC) This image shows the Beaufort Sea Polynya. A polynya, or area of persistent open water surrounded by ice, appeared during the summer 2006 Arctic sea ice melt season. The polynya is the dark area of open water; to the left is the coastline of Alaska, showing fall foliage color, and to the bottom right is the North Pole. This image is from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor, which flies on the NASA Terra and Aqua satellites. (Courtesy NSIDC) Toboggan Glacier, Alaska, in 1909. This image one of a pair of photographs available through the “Repeat Photography of Glaciers” portion of NSIDC’s online Glacier Photograph Collection. These photograph pairs illustrate the dramatic changes that researchers have observed in glaciers worldwide over the past century. (Photograph courtesy of Sidney Paige/USGS Photo Library, available through NSIDC’s online Glacier Photograph Collection). Members of the IceTrek expedition practiced installing their meteorological equipment on this small Antarctic iceberg, nicknamed “Chip,” before installing the equipment permanently on larger icebergs. (Courtesy Ted Scambos, NSIDC) Supporting Cryospheric Research Since 1976 Supporting Cryospheric Research Since 1976 ii Supporting Cryospheric Research Since 1976 Contents Table of Contents Introduction 1 Highlights 3 Data Management at NSIDC 5 Programs 10 The Distributed Active Archive Center (DAAC) 10 The Arctic System Science (ARCSS) Data Coordination Center (ADCC) 14 U.S. -
Siple Dome Ice Reveals Two Modes of Millennial CO2 Change During the Last Ice Age
ARTICLE Received 4 Dec 2013 | Accepted 26 Mar 2014 | Published 29 Apr 2014 DOI: 10.1038/ncomms4723 OPEN Siple Dome ice reveals two modes of millennial CO2 change during the last ice age Jinho Ahn1 & Edward J. Brook2 Reconstruction of atmospheric CO2 during times of past abrupt climate change may help us better understand climate-carbon cycle feedbacks. Previous ice core studies reveal simultaneous increases in atmospheric CO2 and Antarctic temperature during times when Greenland and the northern hemisphere experienced very long, cold stadial conditions during the last ice age. Whether this relationship extends to all of the numerous stadial events in the Greenland ice core record has not been clear. Here we present a high-resolution record of atmospheric CO2 from the Siple Dome ice core, Antarctica for part of the last ice age. We find that CO2 does not significantly change during the short Greenlandic stadial events, implying that the climate system perturbation that produced the short stadials was not strong enough to substantially alter the carbon cycle. 1 School of Earth and Environmental Sciences, Seoul National University, Seoul 151742, Korea. 2 College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, USA. Correspondence and requests for materials should be addressed to J.A. (email: [email protected]). NATURE COMMUNICATIONS | 5:3723 | DOI: 10.1038/ncomms4723 | www.nature.com/naturecommunications 1 & 2014 Macmillan Publishers Limited. All rights reserved. ARTICLE NATURE COMMUNICATIONS | DOI: 10.1038/ncomms4723 ce core records from Greenland reveal a detailed history of the last ice age, marine sediment records indicate shoaled abrupt climate change during the last glacial period. -
Where Is the Best Site on Earth? Domes A, B, C, and F, And
Where is the best site on Earth? Saunders et al. 2009, PASP, 121, 976-992 Where is the best site on Earth? Domes A, B, C and F, and Ridges A and B Will Saunders1;2, Jon S. Lawrence1;2;3, John W.V. Storey1, Michael C.B. Ashley1 1School of Physics, University of New South Wales 2Anglo-Australian Observatory 3Macquarie University, New South Wales [email protected] Seiji Kato, Patrick Minnis, David M. Winker NASA Langley Research Center Guiping Liu Space Sciences Lab, University of California Berkeley Craig Kulesa Department of Astronomy and Steward Observatory, University of Arizona Saunders et al. 2009, PASP, 121 976992 Received 2009 May 26; accepted 2009 July 13; published 2009 August 20 ABSTRACT The Antarctic plateau contains the best sites on earth for many forms of astronomy, but none of the existing bases was selected with astronomy as the primary motivation. In this paper, we try to systematically compare the merits of potential observatory sites. We include South Pole, Domes A, C and F, and also Ridge B (running NE from Dome A), and what we call `Ridge A' (running SW from Dome A). Our analysis combines satellite data, published results and atmospheric models, to compare the boundary layer, weather, aurorae, airglow, precipitable water vapour, thermal sky emission, surface temperature, and the free atmosphere, at each site. We ¯nd that all Antarctic sites are likely to be compromised for optical work by airglow and aurorae. Of the sites with existing bases, Dome A is easily the best overall; but we ¯nd that Ridge A o®ers an even better site. -
Where Is the Best Site on Earth? Domes A, B, C and F, and Ridges a and B
Where is the best site on Earth? Domes A, B, C and F, and Ridges A and B Will Saunders' 2 , Jon S. Lawrence' 2 3 , John W.V. Storey', Michael C.B. Ashley' 1School of Physics, University of New South Wales 2Anglo-Australian Observatory 3Macquarie University, New South Wales [email protected] Seiji Kato, Patrick Minnis, David M. Winker NASA Langley Research Center Guiping Liu Space Sciences Lab, University of California Berkeley Craig Kulesa Department of Astronomy and Steward Observatory, University of Arizona ABSTRACT The Antarctic plateau contains the best sites on earth for many forms of astronomy, but none of the existing bases were selected with astronomy as the primary motivation. In this paper, we try to systematically compare the merits of potential observatory sites. We include South Pole, Domes A, C and F, and also Ridge B (running NE from Dome A), and what we call ‘Ridge A’ (running SW from Dome A). Our analysis combines satellite data, published results and atmospheric models, to compare the boundary layer, weather, free atmosphere, sky brightness, pecipitable water vapour, and surface temperature at each site. We find that all Antarctic sites are likely compromised for optical work by airglow and aurorae. Of the sites with existing bases, Dome A is the best overall; but we find that Ridge A offers an even better site. We also find that Dome F is a remarkably good site. Dome C is less good as a thermal infrared or terahertz site, but would be able to take advantage of a predicted ‘OH hole’ over Antarctica during Spring. -
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HNjTflRCililD A NEWS BULLETIN published quarterly by the NEW ZEALAND ANTARCTIC SOCIETY (INC) Drillers on the Ross Ice Shelf last season used a new hot water system to penetrate fc. 416m of ice and gain access to the waters of the Ross Sea. Here the rig is at work on an access hole for a Norwegian science rproject. ' U . S . N a v y p h o t o Registered ol Post Office Headquarters, Vol. 8, No. 9. Wellington. New Zealand, as a magazine. SOUTH GEORGIA. •.. SOUTH SANDWICH Is' ,,r circle / SOUTH ORKNEY Is' \ $&?-""" "~~~^ / "^x AFAtKtANOis /^SiJS?UK*"0.V" ^Tl~ N^olazarevskayauss« SOUTH AMERICA / /\ ,f Borg°a ~7^1£^ ^.T, \60'E, /? cnirru „ / \ if sa / anT^^^Mo odezhnaya V/ x> SOUTH 9 .» /WEDDELL \ .'/ ' 0,X vr\uss.aT/>\ & SHETtAND-iSfV, / / Halley Bay*! DRONNING MAUD LAND ^im ^ >^ \ - / l s * S Y 2 < 'SEA/ S Euk A J COATSu k V ' tdC O A T S t d / L A N D ! > / \ Dfu^naya^^eneral Belgrano^RG y\ \ Mawson ANTARCTIC SrV MAC ROBERTSON LAND\ \ aust /PENINSULA'^ (see map below) Sobral arg / t Davis aust K- Siple ■■ [ U S A Amundsen-Scott / queen MARY LAND <JMirny AJELLSWORTH Vets') LAND °Vostok ussr MARIE BYRDNs? vice ShelA^ WIIKES tAND , ? O S S ^ . X V a n d a N z / SEA I JpY/VICTORIA .TERRE ,? ^ P o V t A N D V ^ / A D H J E j / V G E O R G E V L d , , _ / £ ^ . / ,^5s=:»iv-'s«,,y\ ^--Dumont d Urville france Leningradskaya \' / USSB_,^'' \ / -""*BALLENYIs\ / ANTARCTIC PENINSULA 1 Teniente Matienzo arg 2 Esperanza arg 3 Almirante Brown arg 4 Petrel arg 5 Decepcion arg. -
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