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Annual Report
annual report 2006-07 Antarctic Climate & Ecosystems COOPERATIVE RESEARCH CENTRE Established and supported under the Australian Government’s Cooperative Research Centre Programme Antarctic Climate & Ecosystems COOPERATIVE RESEARCH CENTRE annual report 2006-07 table of contents executive summary 1 context and major developments during the year 1 national research priorities 3 national research priority goals 3 table 1: national research priorities and CRC research 3 governance & management 4 table 2: speciied personnel 5 research programs 8 climate variability & change 9 ocean control of carbon dioxide 12 antarctic marine ecosystems 15 sea-level rise 17 policy 20 table 3: research outputs and milestones 23 research collaboration 31 commercialisation & utilisation 36 commercialisation & utilisation strategies and activities 36 intellectual property management 37 table 4: commercialisation milestones 37 communication strategy 38 end-user involvement and CRC impact on end-users 39 education & training 42 table 6: education & training outputs and/or milestones 43 third year review 44 performance measures 45 table 7: progress on performance measures 45 glossary of terms 49 executive summary The Antarctic Climate & Ecosystems Cooperative past climate captured in the Antarctic ice sheet. We Research Centre (ACE CRC) was funded to lead Australian have strengthened the previous evidence of signals research on the roles of Antarctica and the Southern in ice cores of winter sea ice cover around eastern Ocean in the global climate system and climate change. Antarctica, allowing hind-casting of sea ice dynamics We also have a brief to investigate likely impacts of that will enable us to properly interpret recent events climate change on Southern Ocean marine ecosystems possibly related to climate change. -
Glacio-Lacustrine Aragonite Deposition, Meltwater Evolution And
Antarctic Science 19 (3), 365–372 (2007) & Antarctic Science Ltd 2007 Printed in the UK DOI: 10.1017/S0954102007000466 Glacio-lacustrine aragonite deposition, meltwater evolution and glacial history during isotope stage 3 at Radok Lake, Amery Oasis, northern Prince Charles Mountains, East Antarctica IAN D. GOODWIN1 and JOHN HELLSTROM2 1Environmental and Climate Change Research Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia 2School of Earth Sciences, University of Melbourne, Parkville, VIC 3010, Australia [email protected] Abstract: The late Quaternary glacial history of the Amery Oasis, and Prince Charles Mountains is of significant interest because about 10% of the total modern Antarctic ice outflow is discharged via the adjacent Lambert Glacier system. A glacial thrust moraine sequence deposited along the northern shoreline of Radok Lake between 20–10 ka BP, overlies a layer of thin, aragonite crusts which provide important constraints on the glacial history of the Amery Oasis. The modern Radok Lake is fed by the terminal meltwaters of the alpine Battye Glacier. The aragonite crusts were deposited in shallow water of ancestral Radok Lake 53 ka BP,during the A3 warm event in Isotope Stage 3. Oxygen isotope (d18O) analysis of the last glacial-age aragonite crusts 18 indicates that they precipitated from freshwater with a d OSMOW composition of -36%, which is 8% more depleted than the present water (-28%) in Radok Lake. A regional oxygen isotope (d18O) and elevation relationship for snow is used to determine the source of meltwater and glacial ice in Radok Lake during the A3 warm event. -
Australian ANTARCTIC Magazine ISSUE 18 2010 Australian
AusTRALIAN ANTARCTIC MAGAZINE ISSUE 18 2010 AusTRALIAN ANTARCTIC ISSUE 2010 MAGAZINE 18 The Australian Antarctic Division, a Division of the Department of the Environment, Water, Heritage and the Arts, leads Australia’s Antarctic program and seeks CONTENTS to advance Australia’s Antarctic interests in pursuit of its vision of having ‘Antarctica valued, protected EXPLORING THE SOUTHERN OCEAN and understood’. It does this by managing Australian government activity in Antarctica, providing transport Southern Ocean marine life in focus 1 and logistic support to Australia’s Antarctic research Snails and ‘snot’ tell acid story 4 program, maintaining four permanent Australian research stations, and conducting scientific research Science thrown overboard 6 programs both on land and in the Southern Ocean. Antarctica – a catalyst for science communication 8 Australia’s four Antarctic goals are: First non-lethal whale study answers big questions 9 • To maintain the Antarctic Treaty System Journal focuses on Antarctic research 11 and enhance Australia’s influence in it; • To protect the Antarctic environment; BROKE–West breaks ground in marine research 11 • To understand the role of Antarctica in EAST ANTARCTIC CENSUS the global climate system; and Shedding light on the sea floor 13 • To undertake scientific work of practical, economic and national significance. Plankton in the spotlight 15 Australian Antarctic Magazine seeks to inform the Sorting the catch 16 Australian and international Antarctic community Using fish to identify ecological regions 17 about the activities of the Australian Antarctic program. Opinions expressed in Australian Antarctic Magazine International flavour enhances Japanese research cruise 18 do not necessarily represent the position of the Australian Government. -
Paleoceanography
PUBLICATIONS Paleoceanography RESEARCH ARTICLE Sea surface temperature control on the distribution 10.1002/2014PA002625 of far-traveled Southern Ocean ice-rafted Key Points: detritus during the Pliocene • New Pliocene East Antarctic IRD record and iceberg trajectory-melting model C. P. Cook1,2,3, D. J. Hill4,5, Tina van de Flierdt3, T. Williams6, S. R. Hemming6,7, A. M. Dolan4, • Increase in remotely sourced IRD 8 9 10 11 9 between ~3.27 and ~2.65 Ma due E. L. Pierce , C. Escutia , D. Harwood , G. Cortese , and J. J. Gonzales to cooling SSTs 1 2 • Evidence for ice sheet retreat in the Grantham Institute for Climate Change, Imperial College London, London, UK, Now at Department of Geological Sciences, Aurora Basin during interglacials University of Florida, Gainesville, Florida, USA, 3Department of Earth Sciences and Engineering, Imperial College London, London, UK, 4School of Earth and Environment, University of Leeds, Leeds, UK, 5British Geological Survey, Nottingham, UK, 6Lamont-Doherty Earth Observatory, Palisades, New York, USA, 7Department of Earth and Environmental Sciences, Columbia Supporting Information: 8 • Readme University, Lamont-Doherty Earth Observatory, Palisades, New York, USA, Department of Geosciences, Wellesley College, • Text S1 and Tables S1–S3 Wellesley, Massachusetts, USA, 9Instituto Andaluz de Ciencias de la Tierra, CSIC-UGR, Armilla, Spain, 10Department of Geology, University of Nebraska–Lincoln, Lincoln, Nebraska, USA, 11Department of Paleontology, GNS Science, Lower Hutt, New Zealand Correspondence to: C. P. Cook, c.cook@ufl.edu Abstract The flux and provenance of ice-rafted detritus (IRD) deposited in the Southern Ocean can reveal information about the past instability of Antarctica’s ice sheets during different climatic conditions. -
Investigation of Glacial Dynamics in Lambert Glacial Basin
INVESTIGATION OF GLACIAL DYNAMICS IN LAMBERT GLACIAL BASIN USING SATELLITE REMOTE SENSING TECHNIQUES A Dissertation by JAEHYUNG YU Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2005 Major Subject: Geography INVESTIGATION OF GLACIAL DYNAMICS IN LAMBERT GLACIAL BASIN USING SATELLITE REMOTE SENSING TECHNIQUES A Dissertation by JAEHYUNG YU Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Hongxing Liu Committee Members, Andrew G. Klein Vatche P. Tchakerian Mahlon Kennicutt Head of Department, Douglas Sherman December 2005 Major Subject: Geography iii ABSTRACT Investigation of Glacial Dynamics in Lambert Glacial Basin Using Satellite Remote Sensing Techniques. Jaehyung Yu, B.S., Chungnam National University; M.S., Chungnam National University Chair of Advisory Committee: Dr. Hongxing Liu The Antarctic ice sheet mass budget is a very important factor for global sea level. An understanding of the glacial dynamics of the Antarctic ice sheet are essential for mass budget estimation. Utilizing a surface velocity field derived from Radarsat three-pass SAR interferometry, this study has investigated the strain rate, grounding line, balance velocity, and the mass balance of the entire Lambert Glacier – Amery Ice Shelf system, East Antarctica. The surface velocity increases abruptly from 350 m/year to 800 m/year at the main grounding line. It decreases as the main ice stream is floating, and increases to 1200 to 1500 m/year in the ice shelf front. -
Coastal Change and Glaciological Map of The
Prepared in cooperation with the Scott Polar Research Institute, University of Cambridge, United Kingdom Coastal-Change and Glaciological Map of the Amery Ice Shelf Area, Antarctica: 1961–2004 By Kevin M. Foley, Jane G. Ferrigno, Charles Swithinbank, Richard S. Williams, Jr., and Audrey L. Orndorff Pamphlet to accompany Geologic Investigations Series Map I–2600–Q 2013 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Suzette M. Kimball, Acting Director U.S. Geological Survey, Reston, Virginia: 2013 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. Suggested citation: Foley, K.M., Ferrigno, J.G., Swithinbank, Charles, Williams, R.S., Jr., and Orndorff, A.L., 2013, Coastal-change and glaciological map of the Amery Ice Shelf area, Antarctica: 1961–2004: U.S. Geological Survey Geologic Investigations Series Map I–2600–Q, 1 map sheet, 8-p. -
Glaciers in Equilibrium, Mcmurdo Dry Valleys, Antarctica
Portland State University PDXScholar Geology Faculty Publications and Presentations Geology 10-2016 Glaciers in Equilibrium, McMurdo Dry Valleys, Antarctica Andrew G. Fountain Portland State University, [email protected] Hassan J. Basagic Portland State University, [email protected] Spencer Niebuhr University of Minnesota - Twin Cities Follow this and additional works at: https://pdxscholar.library.pdx.edu/geology_fac Part of the Glaciology Commons Let us know how access to this document benefits ou.y Citation Details FOUNTAIN, A.G., BASAGIC, H.J. and NIEBUHR, S. (2016) Glaciers in equilibrium, McMurdo Dry Valleys, Antarctica, Journal of Glaciology, pp. 1–14. This Article is brought to you for free and open access. It has been accepted for inclusion in Geology Faculty Publications and Presentations by an authorized administrator of PDXScholar. Please contact us if we can make this document more accessible: [email protected]. Journal of Glaciology (2016), Page 1 of 14 doi: 10.1017/jog.2016.86 © 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. Glaciers in equilibrium, McMurdo Dry Valleys, Antarctica ANDREW G. FOUNTAIN,1 HASSAN J. BASAGIC IV,1 SPENCER NIEBUHR2 1Department of Geology, Portland State University, Portland, OR 97201, USA 2Polar Geospatial Center, University of Minnesota, St. Paul, MN 55108, USA Correspondence: Andrew G. Fountain <[email protected]> ABSTRACT. The McMurdo Dry Valleys are a cold, dry polar desert and the alpine glaciers therein exhibit small annual and seasonal mass balances, often <±0.06 m w.e. -
Back Matter (PDF)
Index Page numbers in italic, e.g. 221, signify references to figures. Page numbers in bold, e.g. 60, denote references to tables. -
Glacio-Lacustrine Aragonite Deposition
Antarctic Science 19 (3), 365–372 (2007) & Antarctic Science Ltd 2007 Printed in the UK DOI: 10.1017/S0954102007000466 Glacio-lacustrine aragonite deposition, meltwater evolution and glacial history during isotope stage 3 at Radok Lake, Amery Oasis, northern Prince Charles Mountains, East Antarctica IAN D. GOODWIN1 and JOHN HELLSTROM2 1Environmental and Climate Change Research Group, School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia 2School of Earth Sciences, University of Melbourne, Parkville, VIC 3010, Australia [email protected] Abstract: The late Quaternary glacial history of the Amery Oasis, and Prince Charles Mountains is of significant interest because about 10% of the total modern Antarctic ice outflow is discharged via the adjacent Lambert Glacier system. A glacial thrust moraine sequence deposited along the northern shoreline of Radok Lake between 20–10 ka BP, overlies a layer of thin, aragonite crusts which provide important constraints on the glacial history of the Amery Oasis. The modern Radok Lake is fed by the terminal meltwaters of the alpine Battye Glacier. The aragonite crusts were deposited in shallow water of ancestral Radok Lake 53 ka BP,during the A3 warm event in Isotope Stage 3. Oxygen isotope (d18O) analysis of the last glacial-age aragonite crusts 18 indicates that they precipitated from freshwater with a d OSMOW composition of -36%, which is 8% more depleted than the present water (-28%) in Radok Lake. A regional oxygen isotope (d18O) and elevation relationship for snow is used to determine the source of meltwater and glacial ice in Radok Lake during the A3 warm event. -
Crossover Analysis of Lambert-Amery Ice Shelf Drainage Basin for Elevation Changes Using Icesat GLAS Data
Crossover Analysis of Lambert-Amery Ice Shelf Drainage Basin for Elevation Changes Using ICESat GLAS Data Dr. SHEN Qiang, Prof. E. Dongchen and Mr. JIN Yinlong (China P. R. Key Words: remote sensing; Lambert-Amery System (LAS); ICESat; GLAS (The Geoscience Laser Altimeter System); elevation change; mass balance; crossover analysis SUMMARY In IPCC Report, the climate change issue has become important part of the larger challenge of sustainable development. The widespread retreat or dilation of glaciers is considered good response to the climate change, such as temperature rise, sea-level rise, etc.. As the largest glacier-ice shelf system in Antarctica, the Lambert Glacier-Amery Ice Shelf system plays an important role in contributions to ice drainage in East Antarctica, which may be make large contributions to rising sea level as well as climate environment. For the ICESat GLAS can determine ice-sheet elevation with an intrinsic precision of better than 10 cm and associated temporal change at the centimeter per year level. So it can be used to measure seasonal and interannual variability of ice-sheet topography in sufficient spatial and temporal detail. In general, Estimates of the global contribution of glaciers to sea level rise are traditionally based on labor-intensive mass-balance (snow/ice input minus ice/water output) measurements on the glacier surface. In this paper, crossover analysis method is addressed for detection of elevation change in Lambert-Amery system. It is differenced measurements at track intersection points that occur with the crossovers of ascending and descending orbit nodes. Common effects will cancel in the crossover formation but temporal effects will remain. -
2004-2005 Science Planning Summary
2004-2005 USAP Field Season Table of Contents Project Indexes Project Websites Station Schedules Technical Events Environmental and Health & Safety Initiatives 2004-2005 USAP Field Season Table of Contents Project Indexes Project Websites Station Schedules Technical Events Environmental and Health & Safety Initiatives 2004-2005 USAP Field Season Project Indexes Project websites List of projects by principal investigator List of projects by USAP program List of projects by institution List of projects by station List of projects by event number digits List of deploying team members Scouting In Antarctica Technical Events Media Visitors 2004-2005 USAP Field Season USAP Station Schedules Click on the station name below to retrieve a list of projects supported by that station. Austral Summer Season Austral Estimated Population Openings Winter Season Station Operational Science Openings Summer Winter 20 August 05 October 890 (weekly 23 February 187 McMurdo 2004 2004 average) 2004 (winter total) (WINFLY*) (Mainbody) 2,900 (total) 232 (weekly South 24 October 30 October 15 February 72 average) Pole 2004 2004 2004 (winter total) 650 (total) 34-44 (weekly 22 September 40 Palmer N/A 8 April 2004 average) 2004 (winter total) 75 (total) Year-round operations RV/IB NBP RV LMG Research 39 science & 32 science & staff Vessels Vessel schedules on the Internet: staff 25 crew http://www.polar.org/science/marine. 25 crew Field Camps Air Support * A limited number of science projects deploy at WinFly. 2004-2005 USAP Field Season Technical Events Every field season, the USAP sponsors a variety of technical events that are not scientific research projects but support one or more science projects. -
Spatial Variations in the Geochemistry of Glacial Meltwater Streams in the Taylor Valley, Antarctica KATHLEEN A
Antarctic Science 22(6), 662–672 (2010) & Antarctic Science Ltd 2010 doi:10.1017/S0954102010000702 Spatial variations in the geochemistry of glacial meltwater streams in the Taylor Valley, Antarctica KATHLEEN A. WELCH1, W. BERRY LYONS1, CARLA WHISNER1, CHRISTOPHER B. GARDNER1, MICHAEL N. GOOSEFF2, DIANE M. MCKNIGHT3 and JOHN C. PRISCU4 1The Ohio State University, Byrd Polar Research Center, 1090 Carmack Rd, 108 Scott Hall, Columbus, OH 43210, USA 2Department of Civil and Environmental Engineering, Pennsylvania State University, University Park, PA 16802, USA 3University of Colorado, INSTAAR, Boulder, CO 80309-0450, USA 4Dept LRES, 334 Leon Johnson Hall, Montana State University, Bozeman, MT 59717, USA [email protected] Abstract: Streams in the McMurdo Dry Valleys, Antarctica, flow during the summer melt season (4–12 weeks) when air temperatures are close to the freezing point of water. Because of the low precipitation rates, streams originate from glacial meltwater and flow to closed-basin lakes on the valley floor. Water samples have been collected from the streams in the Dry Valleys since the start of the McMurdo Dry Valleys Long-Term Ecological Research project in 1993 and these have been analysed for ions and nutrient chemistry. Controls such as landscape position, morphology of the channels, and biotic and abiotic processes are thought to influence the stream chemistry. Sea-salt derived ions tend to be higher in streams that are closer to the ocean and those streams that drain the Taylor Glacier in western Taylor Valley. Chemical weathering is an important process influencing stream chemistry throughout the Dry Valleys. Nutrient availability is dependent on landscape age and varies with distance from the coast.