Report of the Inspection Program Carried out by Argentina and Chile
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Station Sharing in Antarctica
IP 94 Agenda Item: ATCM 7, ATCM 10, ATCM 11, ATCM 14, CEP 5, CEP 6b, CEP 9 Presented by: ASOC Original: English Station Sharing in Antarctica 1 IP 94 Station Sharing in Antarctica Information Paper Submitted by ASOC to the XXIX ATCM (CEP Agenda Items 5, 6 and 9, ATCM Agenda Items 7, 10, 11 and 14) I. Introduction and overview As of 2005 there were at least 45 permanent stations in the Antarctic being operated by 18 countries, of which 37 were used as year-round stations.i Although there are a few examples of states sharing scientific facilities (see Appendix 1), for the most part the practice of individual states building and operating their own facilities, under their own flags, persists. This seems to be rooted in the idea that in order to become a full Antarctic Treaty Consultative Party (ATCP), one has to build a station to show seriousness of scientific purpose, although formally the ATCPs have clarified that this is not the case. The scientific mission and international scientific cooperation is nominally at the heart of the ATS,ii and through SCAR the region has a long-established scientific coordination body. It therefore seems surprising that half a century after the adoption of this remarkable Antarctic regime, we still see no truly international stations. The ‘national sovereign approach’ continues to be the principal driver of new stations. Because new stations are likely to involve relatively large impacts in areas that most likely to be near pristine, ASOC submits that this approach should be changed. In considering environmental impact analyses of proposed new station construction, the Committee on Environmental Protection (CEP) presently does not have a mandate to take into account opportunities for sharing facilities (as an alternative that would reduce impacts). -
Nsf.Gov OPP: Report of the U.S. Antarctic Program Blue Ribbon
EXECUTIVE SUMMARY MORE AND BETTER SCIENCE IN ANTARCTICA THROUGH INCREASED A LOGISTICAL EFFECTIVENESS Report of the U.S. Antarctic Program Blue Ribbon Panel Washington, D.C. July 23, 2012 This booklet summarizes the report of the U.S. Antarctic Program Blue Ribbon Panel, More and Better Science in Antarctica Through Increased Logistical Effectiveness. The report was completed at the request of the White House office of science and Technology Policy and the National Science Foundation. Copies of the full report may be obtained from David Friscic at [email protected] (phone: 703-292-8030). An electronic copy of the report may be downloaded from http://www.nsf.gov/ od/opp/usap_special_review/usap_brp/rpt/index.jsp. Cover art by Zina Deretsky. Front and back inside covers showing McMurdo’s Dry Valleys in Antarctica provided by Craig Dorman. CONTENTS Introduction ............................................ 1 The Panel ............................................... 2 Overall Assessment ................................. 3 U.S. Facilities in Antarctica ....................... 4 The Environmental Challenge .................... 7 Uncertainties in Logistics Planning ............. 8 Activities of Other Nations ....................... 9 Economic Considerations ....................... 10 Major Issues ......................................... 11 Single-Point Failure Modes ..................... 17 Recommendations ................................. 18 Concluding Observations ....................... 21 U.S. ANTARCTIC PROGRAM BLUE RIBBON PANEL WASHINGTON, -
Integración De Modelos Numéricos De Glaciares Y Procesado De Datos De Georradar En Un Sistema De Información Geográfica Tesis Doctoral
Universidad Politécnica de Madrid Escuela Técnica Superior de Ingenieros de Telecomunicación Integración de modelos numéricos de glaciares y procesado de datos de georradar en un sistema de información geográfica Tesis Doctoral por Ricardo Rodríguez Cielos Ingeniero de Telecomunicación Ingeniero Técnico en Topografía, Geodesia y Cartografía Año 2014 Departamento de Matemática Aplicada a las Tecnologías de la Información Escuela Técnica Superior de Ingenieros de Telecomunicación Integración de modelos numéricos de glaciares y procesado de datos de georradar en un sistema de información geográfica Autor: Ricardo Rodríguez Cielos Ingeniero de Telecomunicación Ingeniero Técnico en Topografía, Geodesia y Cartografía Directores: Francisco José Navarro Valero Javier Jesús Lapazaran Izargain Doctor en Ciencias Físicas Doctor Ingeniero de Telecomunicación Año 2014 III IV Tribunal nombrado por el Mgfco. y Excemo. Sr. Rector de la Uni- versidad Politécnica de Madrid, el día ____ de __________ de 2014. Presidente D. Vocal D. Vocal D. Vocal D. Vocal Secretario D. Realizado el acto de defensa y lectura de la Tesis el día ____ de __________ de 2014, en ____________. Calificación: ________________________ EL PRESIDENTE LOS VOCALES EL VOCAL SECRETARIO V A mis hijos, a ella, a mis padres, a mi familia, a mis compañeros, a mis profesores y a mis alumnos. VII Resumen Resumen Los modelos de termomecánica glaciar están definidos mediante sistemas de ecuaciones en derivadas parciales que establecen los principios básicos de conservación de masa, momento lineal y energía, acompañados por una ley constitutiva que define la relación entre las tensiones a las que está sometido el hielo glaciar y las deformaciones resultantes de las mismas. La resolución de estas ecuaciones requiere la definición precisa del dominio (la geometría del glaciar, obtenido a partir de medidas topográficas y de georradar), así como contar con un conjunto de condiciones de contorno, que se obtienen a partir de medidas de campo de las variables implicadas y que constituyen un conjunto de datos geoespaciales. -
USGS Open-File Report 2007-1047, Short Research Paper 035, 3 P.; Doi:10.3133/Of2007-1047.Srp035
U.S. Geological Survey and The National Academies; USGS OF-2007-1047, Short Research Paper 035; doi:10.3133/of2007-1047.srp035 New 40Ar/39Ar and K/Ar ages of dikes in the South Shetland Islands (Antarctic Peninsula) S. Kraus,1 M. McWilliams,2 and Z. Pecskay3 1Instituto Antártico Chileno, Punta Arenas, Chile ([email protected]) 2John de Laeter Centre of Mass Spectrometry, Perth, Australia ([email protected]) 3Institute of Nuclear Research of the Hungarian Academy of Sciences, Debrecen, Hungary ([email protected]) Abstract Eighteen plagioclase 40Ar/39Ar and 7 whole rock K/Ar ages suggest that dikes in the South Shetland Islands (Antarctic Peninsula) are of Paleocene to Eocene age. The oldest dikes are exposed on Hurd Peninsula (Livingston Island) and do not yield 40Ar/39Ar plateaux. Our best estimates suggest dike intrusion at about the Cretaceous/Paleogene boundary. An older age limit for the dikes is established by Campanian nannofossil ages from their metasedimentary host. Dike intrusion began earlier and lasted longer on Hurd Peninsula (Danian to Priabonian) than on King George Island (Thanetian to Lutetian). Arc magmatism on King George Island, possibly accompanied also by hypabyssal intrusions, began in the Cretaceous as indicated by ages from the stratiform volcanic sequence. The dikes on King George Island were emplaced beginning in the late Paleocene and ending 47–45 Ma. The youngest arc-related dikes on Hurd Peninsula were emplaced ~37 Ma. Citation: Kraus, S., M. McWilliams, and Z. Pecskay (2007), New 40Ar/39Ar and K/Ar ages of dikes in the South Shetland Islands (Antarctic Peninsula), in Antarctica: A Keystone in a Changing World – Online Proceedings of the 10th ISAES, edited by A. -
Decelerated Mass Loss of Hurd and Johnsons Glaciers, Livingston Island, Antarctic Peninsula
Journal of Glaciology, Vol. 59, No. 213, 2013 doi: 10.3189/2013JoG12J144 1 Decelerated mass loss of Hurd and Johnsons Glaciers, Livingston Island, Antarctic Peninsula Francisco J. NAVARRO, Ulf Y. JONSELL, MarõÂa I. CORCUERA, Alba MARTIÂN-ESPANÄ OL Departmento de MatemaÂtica Aplicada, ETSI de TelecomunicacioÂn, Universidad PoliteÂcnica de Madrid, Madrid, Spain E-mail: [email protected] ABSTRACT. A new 10 year surface mass balance (SMB) record of Hurd and Johnsons Glaciers, Livingston Island, Antarctica, is presented and compared with earlier estimates on the basis of local and regional meteorological conditions and trends. Since Johnsons is a tidewater glacier, we also include a calving flux calculation to estimate its total mass balance. The average annual SMB over the 10 year observation period 2002±11 is ±0.15 0.10 m w.e. for Hurd Glacier and 0.05 0.10 m w.e. for Johnsons Glacier. Æ Æ Adding the calving losses to the latter results in a total mass balance of ±0.09 0.10 m w.e. There has Æ been a deceleration of the mass losses of these glaciers from 1957±2000 to 2002±11, which have nearly halved for both glaciers. We attribute this decrease in the mass losses to a combination of increased accumulation in the region and decreased melt. The increased accumulation is attributed to larger precipitation associated with the recent deepening of the circumpolar pressure trough, while the melt decrease is associated with lower summer surface temperatures during the past decade. 1. INTRODUCTION lation rate. In fact, much evidence points to such an Hurd and Johnsons Glaciers are located on Livingston Island increase: an increasing trend in winter accumulation in the (LI), the second largest island in the South Shetland Islands northwestern AP observed in ERA-40 reanalysis data (Miles (SSI) archipelago, which lies nearly parallel to the northern and others, 2008), an increase in the annual total of tip of the Antarctic Peninsula (AP), known as Trinity precipitation days at Faraday/Vernadsky station (Turner and Peninsula (Fig. -
South Shetland Islands, Antarctica) – Clues from Magmatic Dykes S
TOMO 2 - Volcanismo y Magmatismo THE ROLE OF CONTINENTAL CRUST DURING MAGMA GENESIS BENEATH HURD PENINSULA (SOUTH SHETLAND ISLANDS, ANTARCTICA) – CLUES FROM MAGMATIC DYKES S. Kraus (Instituto Antártico Chileno, Punta Arenas, [email protected]) H. Miller (Dept. of Earth & Environm. Sci., Univ. of Munich, Germany, [email protected]) INTRODUCTION Hurd Peninsula (62° 40’ S / 60° 22’ W) is located in southern Livingston Island, the second largest of the South Shetland Islands (Fig. 1). It is bordered by South Bay in the NW and False Bay in the SE and comprises about 27 km2. Three main lithological sequences crop out there: the sedimentary, turbiditic Miers Bluff Formation (MBF) in the stratigraphically lowermost position, unconformably overlain by the Moores Peak Breccia and, uppermost, the volcanic rocks of the magmatic arc (Mount Bowles Formation). The investigation area is located in the northwestern part of Hurd Peninsula and the dykes are hosted without exception by the Miers Bluff Formation. Major goals were the identification of tectonic events as reflected by the orientation of the dykes and by joint systems, the determination of the magma sources as well as possible changes, and relationships between tectonic and magmatic events. Ar-Ar age determinations carried out on plagioclase separates indicate that the dykes intruded the different directions (first and second order dextral and sinistral shear systems) correlated with the folding axis (24°, evident in the sedimentary host rocks) from Danian on, most of them during the Lutetian. Six different intrusive events can be distinguished on Hurd Peninsula. Fig. 1: Geography of the northern Antarctic Peninsula Dykes of the same relative age also share the and the South Shetland Islands and their location in Antarctica (inset). -
The Dynamics and Mass Budget of Aretic Glaciers
DA NM ARKS OG GRØN L ANDS GEO L OG I SKE UNDERSØGELSE RAP P ORT 2013/3 The Dynamics and Mass Budget of Aretic Glaciers Abstracts, IASC Network of Aretic Glaciology, 9 - 12 January 2012, Zieleniec (Poland) A. P. Ahlstrøm, C. Tijm-Reijmer & M. Sharp (eds) • GEOLOGICAL SURVEY OF D EN MARK AND GREENLAND DANISH MINISTAV OF CLIMATE, ENEAGY AND BUILDING ~ G E U S DANMARKS OG GRØNLANDS GEOLOGISKE UNDERSØGELSE RAPPORT 201 3 / 3 The Dynamics and Mass Budget of Arctic Glaciers Abstracts, IASC Network of Arctic Glaciology, 9 - 12 January 2012, Zieleniec (Poland) A. P. Ahlstrøm, C. Tijm-Reijmer & M. Sharp (eds) GEOLOGICAL SURVEY OF DENMARK AND GREENLAND DANISH MINISTRY OF CLIMATE, ENERGY AND BUILDING Indhold Preface 5 Programme 6 List of participants 11 Minutes from a special session on tidewater glaciers research in the Arctic 14 Abstracts 17 Seasonal and multi-year fluctuations of tidewater glaciers cliffson Southern Spitsbergen 18 Recent changes in elevation across the Devon Ice Cap, Canada 19 Estimation of iceberg to the Hansbukta (Southern Spitsbergen) based on time-lapse photos 20 Seasonal and interannual velocity variations of two outlet glaciers of Austfonna, Svalbard, inferred by continuous GPS measurements 21 Discharge from the Werenskiold Glacier catchment based upon measurements and surface ablation in summer 2011 22 The mass balance of Austfonna Ice Cap, 2004-2010 23 Overview on radon measurements in glacier meltwater 24 Permafrost distribution in coastal zone in Hornsund (Southern Spitsbergen) 25 Glacial environment of De Long Archipelago -
Worldwide Version-Controlled Database of Glacier Thickness Observations Ethan Welty1,2, Michael Zemp2, Francisco Navarro3, Matthias Huss4,5,6, Johannes J
Worldwide version-controlled database of glacier thickness observations Ethan Welty1,2, Michael Zemp2, Francisco Navarro3, Matthias Huss4,5,6, Johannes J. Fürst7, Isabelle Gärtner-Roer2, Johannes Landmann2,4,5, Horst Machguth6,2, Kathrin Naegeli8,2, Liss M. Andreassen9, Daniel Farinotti4,5, Huilin Li10, and GlaThiDa Contributors* 1Institute of Arctic and Alpine Research (INSTAAR), University of Colorado Boulder, United States 2World Glacier Monitoring Service (WGMS), University of Zürich, Switzerland 3Escuela Técnica Superior de Ingenieros de Telecomunicación, Universidad Politécnica de Madrid, Spain 4Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zürich, Switzerland 5Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Switzerland 6Department of Geosciences, University of Fribourg, Switzerland 7Department of Geography, University of Erlangen-Nuremberg (FAU), Germany 8Institute of Geography, University of Bern, Switzerland 9Norwegian Water Resources and Energy Directorate (NVE), Oslo, Norway 10Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, China *A list of additional contributors and their affiliations appears at the end of the paper. Correspondence: Ethan Welty ([email protected]) Abstract. Although worldwide inventories of glacier area have been coordinated internationally for several decades, a similar effort for glacier ice thicknesses was only initiated in 2013. Here, we present the third version of the Glacier Thickness Database (GlaThiDa v3), which includes 3 854 279 thickness measurements distributed over roughly 3 000 glaciers worldwide. Over- 5 all, 14 % of global glacier area is now within 1 km of a thickness measurement (located on the same glacier) – a significant improvement over GlaThiDa v2, which covered only 6 % of global glacier area, and only 1 100 glaciers. -
Observations on the Glacial History of Livingston Island1
Observations on the Glacial History of Livingston Island1 K. R. EVERETT2 ABSTRACT. Livingston Island, one of the South Shetland Islands, Antarctica, has recorded at least three glacial events. During the oldest event all areas of the island below 200 m. were covered by an expanded island ice cap. At that time Livingston Island ice probably joined that of adjacent islands. A second, less extensive event, is recorded by deposits of both the inland ice cap and cirque glaciers. Between these two glacial events a higherstand of sea level produced beaches and terracesat 10.6 m. to 12 m. above the present sea level. Following the second glacial event a higher sea level produced beaches 6.1 m. above the present sea level. A third, minor and probably relatively recent glacial event is recorded by push moraines in some cirques from which the ice has now receded. RÉSUMÉ. Observations sur l'histoireglaciaire de l'île deLivingston. L'une des Shetland du Sud, en Antarctique, I'ile de Livingston a vu au moins trois événements glaciaires. Au cours du plus ancien, toute l'île en bas de la cote 200 m a été recou- verte par une calotte insulaire. A ce moment-là, la glace de Livingston rejoignait probablementcelle des îles adjacentes. Un second événement moins étendu est enregistré à la fois dans les dépôts de la calotte,et dans ceux de glaciers de cirque. Entre ces deux événements, un niveau marin plus élevé a produit des plages et des terrasses entre 10,6 et 12 m au-dessus du niveau marin actuel. -
K4MZU Record WAP WACA Antarctic Program Award
W.A.P. - W.A.C.A. Sheet (Page 1 of 10) Callsign: K4MZU Ex Call: - Country: U.S.A. Name: Robert Surname: Hines City: McDonough Address: 1978 Snapping Shoals Road Zip Code: GA-30252 Province: GA Award: 146 Send Record Sheet E-mail 23/07/2020 Check QSLs: IK1GPG & IK1QFM Date: 17/05/2012 Total Stations: 490 Tipo Award: Hunter H.R.: YES TOP H.R.: YES Date update: 23/07/2020 Date: - Date Top H.R.: - E-mail: [email protected] Ref. Call worked Date QSO Base Name o Station . ARGENTINA ARG-Ø1 LU1ZAB 15/02/1996 . Teniente Benjamin Matienzo Base (Air Force) ARG-Ø2 LU1ZE 30/01/1996 . Almirante Brown Base (Army) ARG-Ø2 LU5ZE 15/01/1982 . Almirante Brown Base (Army) ARG-Ø4 LU1ZV 17/11/1993 . Esperanza Base (Army) ARG-Ø6 LU1ZG 09/10/1990 . General Manuel Belgrano II Base (Army) ARG-Ø6 LU2ZG 27/12/1981 . General Manuel Belgrano II Base (Army) ARG-Ø8 LU1ZD 19/12/1993 . General San Martin Base (Army) ARG-Ø9 LU2ZD 19/01/1994 . Primavera Base (Army) (aka Capitan Cobett Base) ARG-11 LW7EYK/Z 01/02/1994 . Byers Camp (IAA) ARG-11 LW8EYK/Z 23/12/1994 . Byers Camp (IAA) ARG-12 LU1ZC 28/01/1973 . Destacamento Naval Decepción Base (Navy) ARG-12 LU2ZI 19/08/1967 . Destacamento Naval Decepción Base (Navy) ARG-13 LU1ZB 13/12/1995 . Destacamento Naval Melchior Base (Navy) ARG-15 AY1ZA 31/01/2004 . Destacamento Naval Orcadas del Sur Base (Navy) ARG-15 LU1ZA 19/02/1995 . Destacamento Naval Orcadas del Sur Base (Navy) ARG-15 LU5ZA 02/01/1983 . -
Structural Studies in the Scotia Arc: Livingston Island
Structural Studies in the Scotia Arc: relatively mature sandstone. Only plant fossils were Livingston Island found and it is not yet known whether any of these are diagnostic. Although tentatively correlated with the Trinity Peninsula Series by Hobbs (1968) on IAN W. D. DALZIEL lithic grounds, the rocks are remarkably similar to the Lamont-Doherty Geological Observatory Cretaceous sediments at Cape Legoupil, directly Columbia University across the Bransfield Strait on the Antarctic Penin- sula, as described by Halpern (1965; see also Adie, The South Shetland Islands lie on the southern limb 1964). of the Scotia Arc, separated from the Antarctic Pen- The rocks of the Miers Bluff Formation, dip north- insula by the Bransfield Strait (Fig. 1). During the west at a low or moderate angle. They were regarded 1968-1969 antarctic summer, the author and his as- by Hobbs (1968) as a normal upward-facing succes- sistant, S. J. Brocoum, spent approximately seven sion. However, the present study has shown that they weeks in the southeastern part of Livingston Island, lie on the inverted limb of a recumbent fold of nappe the largest of the group, carrying out geological and proportions which is refo!ded by at least two later sets geophysical studies pertinent to the tectonic history of of structures. The hinge line of the recumbent fold the Arc. This particular location was selected in order can he deduced from cleavage/bedding relations to to study the so-called False Bay schists, which were strike northeast-southwest parallel to the trend of the tentatively assigned a Precambrian age by Hobbs Scotia Arc at this point, and the fold faces southeast. -
Frontal Ablation of Glaciers on Livingston Island 3 Frontal Ablation of Glaciers on Livingston Island
EGU Journal Logos (RGB) Open Access Open Access Open Access Advances in Annales Nonlinear Processes Geosciences Geophysicae in Geophysics Open Access Open Access Natural Hazards Natural Hazards and Earth System and Earth System Sciences Sciences Discussions Open Access Open Access Atmospheric Atmospheric Chemistry Chemistry and Physics and Physics Discussions Open Access Open Access Atmospheric Atmospheric Measurement Measurement Techniques Techniques Discussions Open Access Open Access Biogeosciences Biogeosciences Discussions Open Access Open Access Climate Climate of the Past of the Past Discussions Open Access Open Access Earth System Earth System Dynamics Dynamics Discussions Open Access Geoscientific Geoscientific Open Access Instrumentation Instrumentation Methods and Methods and Data Systems Data Systems Discussions Open Access Open Access Geoscientific Geoscientific Model Development Model Development Discussions Open Access Open Access Hydrology and Hydrology and Earth System Earth System Sciences Sciences Discussions Open Access Open Access Ocean Science Ocean Science Discussions Open Access Open Access Solid Earth Solid Earth Discussions Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | The Cryosphere Discuss., 7, 4207–4240, 2013 Open Access Open Access www.the-cryosphere-discuss.net/7/4207/2013/ The Cryosphere The Cryosphere TCD doi:10.5194/tcd-7-4207-2013 Discussions © Author(s) 2013. CC Attribution 3.0 License. 7, 4207–4240, 2013 This discussion paper is/has been under review for the journal The Cryosphere (TC). Frontal ablation of Please refer to the corresponding final paper in TC if available. glaciers on Livingston Island Frontal ablation and temporal variations B. Osmanoglu et al. in surface velocity of Livingston Island ice cap, Antarctica Title Page Abstract Introduction B. Osmanoglu1, M.