Antarctic Treaty Exchange of Information
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Ferraccioli Etal2008.Pdf
Tectonophysics 478 (2009) 43–61 Contents lists available at ScienceDirect Tectonophysics journal homepage: www.elsevier.com/locate/tecto Magmatic and tectonic patterns over the Northern Victoria Land sector of the Transantarctic Mountains from new aeromagnetic imaging F. Ferraccioli a,⁎, E. Armadillo b, A. Zunino b, E. Bozzo b, S. Rocchi c, P. Armienti c a British Antarctic Survey, Cambridge, UK b Dipartimento per lo Studio del Territorio e delle Sue Risorse, Università di Genova, Genova, Italy c Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy article info abstract Article history: New aeromagnetic data image the extent and spatial distribution of Cenozoic magmatism and older Received 30 January 2008 basement features over the Admiralty Block of the Transantarctic Mountains. Digital enhancement Received in revised form 12 November 2008 techniques image magmatic and tectonic features spanning in age from the Cambrian to the Neogene. Accepted 25 November 2008 Magnetic lineaments trace major fault zones, including NNW to NNE trending transtensional fault systems Available online 6 December 2008 that appear to control the emplacement of Neogene age McMurdo volcanics. These faults represent splays from a major NW–SE oriented Cenozoic strike-slip fault belt, which reactivated the inherited early Paleozoic Keywords: – Aeromagnetic anomalies structural architecture. NE SW oriented magnetic lineaments are also typical of the Admiralty Block and fl Transantarctic Mountains re ect post-Miocene age extensional faults. To re-investigate controversial relationships between strike-slip Inheritance faulting, rifting, and Cenozoic magmatism, we combined the new aeromagnetic data with previous datasets Cenozoic magmatism over the Transantarctic Mountains and Ross Sea Rift. -
Proposed Construction and Operation of a Gravel Runway in the Area of Mario Zucchelli Station, Terra Nova Bay, Victoria Land, Antarctica
ATCM XXXIX, CEP XIX, Santiago 2016 Annex A to the WP presented by Italy Draft Comprehensive Environmental Evaluation Proposed construction and operation of a gravel runway in the area of Mario Zucchelli Station, Terra Nova Bay, Victoria Land, Antarctica January 2016 Rev. 0 (INTENTIONALLY LEFT BLANK) TABLE OF CONTENTS Non-technical summary ...................................................................................................................... i I Introduction ........................................................................................................................ i II Need of Proposed Activities .............................................................................................. ii III Site selection and alternatives .......................................................................................... iii IV Description of the Proposed Activity ............................................................................... iv V Initial Environmental Reference State .............................................................................. v VI Identification and Prediction of Environmental Impact, Mitigation Measures of the Proposed Activities .......................................................................................................... vi VII Environmental Impact Monitoring Plan ........................................................................... ix VIII Gaps in Knowledge and Uncertainties ............................................................................. ix -
The Ross Sea Dipole - Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, Over the Past 2,700 Years
Clim. Past Discuss., https://doi.org/10.5194/cp-2017-95 Manuscript under review for journal Clim. Past Discussion started: 1 August 2017 c Author(s) 2017. CC BY 4.0 License. The Ross Sea Dipole - Temperature, Snow Accumulation and Sea Ice Variability in the Ross Sea Region, Antarctica, over the Past 2,700 Years 5 RICE Community (Nancy A.N. Bertler1,2, Howard Conway3, Dorthe Dahl-Jensen4, Daniel B. Emanuelsson1,2, Mai Winstrup4, Paul T. Vallelonga4, James E. Lee5, Ed J. Brook5, Jeffrey P. Severinghaus6, Taylor J. Fudge3, Elizabeth D. Keller2, W. Troy Baisden2, Richard C.A. Hindmarsh7, Peter D. Neff8, Thomas Blunier4, Ross Edwards9, Paul A. Mayewski10, Sepp Kipfstuhl11, Christo Buizert5, Silvia Canessa2, Ruzica Dadic1, Helle 10 A. Kjær4, Andrei Kurbatov10, Dongqi Zhang12,13, Ed D. Waddington3, Giovanni Baccolo14, Thomas Beers10, Hannah J. Brightley1,2, Lionel Carter1, David Clemens-Sewall15, Viorela G. Ciobanu4, Barbara Delmonte14, Lukas Eling1,2, Aja A. Ellis16, Shruthi Ganesh17, Nicholas R. Golledge1,2, Skylar Haines10, Michael Handley10, Robert L. Hawley15, Chad M. Hogan18, Katelyn M. Johnson1,2, Elena Korotkikh10, Daniel P. Lowry1, Darcy Mandeno1, Robert M. McKay1, James A. Menking5, Timothy R. Naish1, 15 Caroline Noerling11, Agathe Ollive19, Anaïs Orsi20, Bernadette C. Proemse18, Alexander R. Pyne1, Rebecca L. Pyne2, James Renwick1, Reed P. Scherer21, Stefanie Semper22, M. Simonsen4, Sharon B. Sneed10, Eric J., Steig3, Andrea Tuohy23, Abhijith Ulayottil Venugopal1,2, Fernando Valero-Delgado11, Janani Venkatesh17, Feitang Wang24, Shimeng -
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. -
An Overview of Snow Photochemistry: Evidence, Mechanisms and Impacts
Atmos. Chem. Phys., 7, 4329–4373, 2007 www.atmos-chem-phys.net/7/4329/2007/ Atmospheric © Author(s) 2007. This work is licensed Chemistry under a Creative Commons License. and Physics An overview of snow photochemistry: evidence, mechanisms and impacts A. M. Grannas1, A. E. Jones2, J. Dibb3, M. Ammann4, C. Anastasio5, H. J. Beine6, M. Bergin7, J. Bottenheim8, C. S. Boxe9, G. Carver10, G. Chen11, J. H. Crawford11, F. Domine´12, M. M. Frey12,13, M. I. Guzman´ 9,14, D. E. Heard15, D. Helmig16, M. R. Hoffmann9, R. E. Honrath17, L. G. Huey18, M. Hutterli2, H. W. Jacobi19, P. Klan´ 20, B. Lefer29, J. McConnell21, J. Plane15, R. Sander22, J. Savarino12, P. B. Shepson23, W. R. Simpson24, J. R. Sodeau25, R. von Glasow26, 27, R. Weller19, E. W. Wolff2, and T. Zhu28 1Department of Chemistry, Villanova University, Villanova, PA 19085, USA 2British Antarctic Survey, Natural Environment Research Council, Cambridge, CB3 0ET, UK 3Institute for the Study of Earth, Oceans and Space, University of New Hampshire, Durham, NH 03824, USA 4Laboratory for Radio- and Environmental Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland 5Department of Land, Air & Water Resources, University of California at Davis, Davis, CA 95616, USA 6Consiglio Nazionale delle Ricerche – Istituto Inquinamento Atmosferico (C.N.R. – I.I.A); Via Salaria Km 29,3; 00016 Monterotondo Scalo, Roma, Italy 7School of Civil and Environmental Engineering and School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA 8Air Quality Research Branch, -
Draft ASMA Plan for Dry Valleys
Measure 18 (2015) Management Plan for Antarctic Specially Managed Area No. 2 MCMURDO DRY VALLEYS, SOUTHERN VICTORIA LAND Introduction The McMurdo Dry Valleys are 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 mountain ranges, nunataks, glaciers, ice-free valleys, coastline, ice-covered lakes, ponds, 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 was jointly proposed by the United States and New Zealand and adopted through Measure 1 (2004). This Management Plan aims to ensure the long-term protection of this unique environment, and to safeguard its values for the conduct of scientific research, education, and more general forms of appreciation. -
The Antarctic Sun, November 5, 2000
ww w. p o l a r. o rg / a n t s u n The November 5, 2000 PublishedA duringn the australt a summerr atctic McMurdo Station, Antarctica,Sun for the United States Antarctic Program Quote of the week “If we had to, we could run Roll out the barrels naked back to town.” Diver Rob Robbins, on wearing extreme cold weather gear to Fish Hut 4 on the sea ice 20 feet from McMurdo Station Fish story The ones that didn’t get away By Josh Landis Sun staff In a row of clear, plastic tanks in the Crary aquar- ium, a life cycle is underway. Early this season, divers brought a cache of dragonfish eggs out of the sea to be hatched in captivity. Now, for the first time ever at McMurdo, scores of the fish are growing up under the watchful eyes of researchers, giving them a look at a process that’s been largely unobserved: how their resistance to sub-freezing temperatures changes as they mature. Gently pouring plankton-rich water into the tanks, Teri McLain watches the small fry swim and twitch with hungry vigor. Each day these tiny fish reveal a little more of their species’ secrets of sur- vival, and she records it all. Fuelie Dave Tuepker checks new fuel drums for water condensation. Droplets formed inside some of them during transport to Antarctica, making them The droning of a gas-powered winch deafens the unsuitable for airplane and vehicle use. The ones that pass inspection will be inside of an old ice shack. -
The Antarctic Sun, January 15, 2006
January 15, 2006 Scientists learn volumes from ancient tracks By Emily Stone Sun staff To Molly Miller, little lines etched in stone are the history books of ancient Antarctica. Miller and her fellow scientists are hunting for tracks left by the tiny animals that inhabited the continent’s lakes and streams between 240 million and 280 million years ago. Understanding what was living here will reveal much about the climate, landscape and ecology of the period. “We’re piecing together a picture of the past,” said Miller of Vanderbilt University, Steven Profaizer / The Antarctic Sun who is a co-principal investigator on the Randy “Crunch” Noring prepares to hook a hanging cargo net to a helicopter hovering project. at Marble Point Refueling Station. The facility functions as a gas station, food stop and Her two co-principal investigators are way station for many flights in the McMurdo Dry Valleys. doing similar searches. John Isbell of the University of Wisconsin, Milwaukee is looking for features in the rocks that See TINY on page 11 Much more than fuel Marble Point Refueling Station gives pilots a taste of home By Steven Profaizer Sun staff There is no question what continent you are on when standing outside the main hut at Marble Point Refueling Station. A large glacier terminates a few hundred meters away. Icebergs stick up out of the sea ice, frozen in place. And the cold, dry wind whips across your face. Inside the hut, however, you might think you’ve been whisked away to a friend’s house, complete with a small kitchen wafting the smell of chicken noodle soup, fresh-baked bread and homemade cookies. -
Continental Field Manual 3 Field Planning Checklist: All Field Teams Day 1: Arrive at Mcmurdo Station O Arrival Brief; Receive Room Keys and Station Information
PROGRAM INFO USAP Operational Risk Management Consequences Probability none (0) Trivial (1) Minor (2) Major (4) Death (8) Certain (16) 0 16 32 64 128 Probable (8) 0 8 16 32 64 Even Chance (4) 0 4 8 16 32 Possible (2) 0 2 4 8 16 Unlikely (1) 0 1 2 4 8 No Chance 0% 0 0 0 0 0 None No degree of possible harm Incident may take place but injury or illness is not likely or it Trivial will be extremely minor Mild cuts and scrapes, mild contusion, minor burns, minor Minor sprain/strain, etc. Amputation, shock, broken bones, torn ligaments/tendons, Major severe burns, head trauma, etc. Injuries result in death or could result in death if not treated Death in a reasonable time. USAP 6-Step Risk Assessment USAP 6-Step Risk Assessment 1) Goals Define work activities and outcomes. 2) Hazards Identify subjective and objective hazards. Mitigate RISK exposure. Can the probability and 3) Safety Measures consequences be decreased enough to proceed? Develop a plan, establish roles, and use clear 4) Plan communication, be prepared with a backup plan. 5) Execute Reassess throughout activity. 6) Debrief What could be improved for the next time? USAP Continental Field Manual 3 Field Planning Checklist: All Field Teams Day 1: Arrive at McMurdo Station o Arrival brief; receive room keys and station information. PROGRAM INFO o Meet point of contact (POC). o Find dorm room and settle in. o Retrieve bags from Building 140. o Check in with Crary Lab staff between 10 am and 5 pm for building keys and lab or office space (if not provided by POC). -
Historical Behaviour of Dome C and Talos Dome (East Antarctica) As
Available online at www.sciencedirect.com Global and Planetary Change 60 (2008) 576–588 www.elsevier.com/locate/gloplacha Historical behaviour of Dome C and Talos Dome (East Antarctica) as investigated by snow accumulation and ice velocity measurements ⁎ Stefano Urbini a, Massimo Frezzotti b, , Stefano Gandolfi c, Christian Vincent d, Claudio Scarchilli b, Luca Vittuari c, Michel Fily d a Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Roma, Italy b Ente per le Nuove Tecnologie, l'Energia e l'Ambiente, Via Anguillarese, 301, 00123 Roma, Italy c Dipartimento di Ingegneria delle Strutture, dei Trasporti, delle Acque, del Rilevamento, del Territorio, V.le Risorgimento 2, 40086 Bologna, Italy d Laboratoire de Glaciologie et Géophysique de l'Environnement, CNRS-UJF, 54 rue Molière, Grenoble, France Received 9 March 2007; accepted 14 August 2007 Available online 29 August 2007 Abstract Ice divide–dome behaviour is used for ice sheet mass balance studies and interpretation of ice core records. In order to characterize the historical behaviour (last 400 yr) of Dome C and Talos Dome (East Antarctica), ice velocities have been measured since 1996 using a GPS system, and the palaeo-spatial variability of snow accumulation has been surveyed using snow radar and firn cores. The snow accumulation distribution of both domes indicates distributions of accumulation that are non-symmetrical in relation to dome morphology. Changes in spatial distributions have been observed over the last few centuries, with a decrease in snow accumulation gradient along the wind direction at Talos Dome and a counter-clockwise rotation of accumulation distribution in the northern part of Dome C. -
Radio Echo Sounding (RES) Investigations at Talos Dome (East Antarctica): Bedrock Topography and Ice Thickness
ANNALS OF GEOPHYSICS, VOL. 46, N. 6, December 2003 Radio Echo Sounding (RES) investigations at Talos Dome (East Antarctica): bedrock topography and ice thickness Cesidio Bianchi (1), Lili Cafarella (1),Paola De Michelis (1), Alessandro Forieri (3) (4), Massimo Frezzotti (2),Ignazio E. Tabacco (3) and Achille Zirizzotti (1) (1) Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italy (2) ENEA Progetto Speciale Clima, Roma, Italy (3) Dipartimento di Scienze della Terra, Università di Milano, Italy (4) Dipartimento di Scienze della Terra, Università di Siena, Italy Abstract Radio echo sounding measurements were collected during two Antarctic expeditions to determine the ice thick- ness and the sub-glacial morphology of Talos Dome in the region around 72°48′S; 159°06′E (about 6400 km2) on the edge of the East Antarctic plateau adjacent to Victoria Land in the western Ross Sea sector. The increas- ing interest in this region is due to the fact that in this area the ice accumulation is higher than in other sites in East Antarctica. Because of this, Talos Dome could be a new site for a project of a deep ice core drilling to ob- tain information on climate changes near the coast of Antarctica. In this frame, the knowledge of the bedrock to- pography is of great importance to choose the best location for the drilling site. In this paper, airborne radio echo sounding results from two Antarctic expeditions (1997 and 1999) are presented. Bedrock topography in bi- and three-dimensions for the Talos Dome region are discussed. Key words radio echo sounding – radio glaciology – method are similar to those used in marine ice thickness measurements acoustic sounding. -
Explorer's Gazette
EEXXPPLLOORREERR’’SS GAZETTE GAZETTE Published Quarterly in Pensacola, Florida USA for the Old Antarctic Explorers Association Uniting All OAEs in Perpetuating the History of U.S. Navy Involvement in Antarctica Volume 6, Issue 3 Old Antarctic Explorers Association, Inc Jul-Sep 2006 Coast Guard Cutter Polar Star at McMurdo Ice Pier Polar Star Change of Command Ceremony Compiled by Billy-Ace Baker ince the late 1970s, the 400-foot mammoths of the Coast The “J”-shaped cranes and work areas near the stern and S Guard fleet, based in Seattle, Washington, have been port side of ship give scientists the capability to do at-sea traveling north and south on their primary mission of studies in the fields of geology, vulcanology, oceanography, scientific and logistical support in both Polar Regions. Polar sea-ice physics, and other earth science disciplines. class icebreakers, the Polar Star and the Polar Sea, have a On 10 June 2006 at 10:30 a.m. in Seattle Washington, a variety of missions while operating in Polar Regions. change of command ceremony took place aboard the Coast During Antarctic deployments, their missions include Guard Cutter Polar Star at Pier 36. breaking a channel through the sea ice to McMurdo Station On 30 June, the icebreaker entered caretaker status at its in the Ross Sea. Resupply ships use the channel to bring homeport in Seattle pending a decision whether the ship will food, fuel, and other goods to McMurdo Station. In addition be decommissioned or undergo a major renovation. Polar Star serves as a scientific research platform with five See Polar Star on page 4.