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Federal Register/Vol. 84, No. 78/Tuesday, April 23, 2019/Rules
Federal Register / Vol. 84, No. 78 / Tuesday, April 23, 2019 / Rules and Regulations 16791 U.S.C. 3501 et seq., nor does it require Agricultural commodities, Pesticides SUPPLEMENTARY INFORMATION: The any special considerations under and pests, Reporting and recordkeeping Antarctic Conservation Act of 1978, as Executive Order 12898, entitled requirements. amended (‘‘ACA’’) (16 U.S.C. 2401, et ‘‘Federal Actions to Address Dated: April 12, 2019. seq.) implements the Protocol on Environmental Justice in Minority Environmental Protection to the Richard P. Keigwin, Jr., Populations and Low-Income Antarctic Treaty (‘‘the Protocol’’). Populations’’ (59 FR 7629, February 16, Director, Office of Pesticide Programs. Annex V contains provisions for the 1994). Therefore, 40 CFR chapter I is protection of specially designated areas Since tolerances and exemptions that amended as follows: specially managed areas and historic are established on the basis of a petition sites and monuments. Section 2405 of under FFDCA section 408(d), such as PART 180—[AMENDED] title 16 of the ACA directs the Director the tolerance exemption in this action, of the National Science Foundation to ■ do not require the issuance of a 1. The authority citation for part 180 issue such regulations as are necessary proposed rule, the requirements of the continues to read as follows: and appropriate to implement Annex V Regulatory Flexibility Act (5 U.S.C. 601 Authority: 21 U.S.C. 321(q), 346a and 371. to the Protocol. et seq.) do not apply. ■ 2. Add § 180.1365 to subpart D to read The Antarctic Treaty Parties, which This action directly regulates growers, as follows: includes the United States, periodically food processors, food handlers, and food adopt measures to establish, consolidate retailers, not States or tribes. -
King George VI Wikipedia Page
George VI of the United Kingdom - Wikipedia, the free encyclopedia 10/6/11 10:20 PM George VI of the United Kingdom From Wikipedia, the free encyclopedia (Redirected from King George VI) George VI (Albert Frederick Arthur George; 14 December 1895 – 6 February 1952) was King of the United Kingdom George VI and the Dominions of the British Commonwealth from 11 December 1936 until his death. He was the last Emperor of India, and the first Head of the Commonwealth. As the second son of King George V, he was not expected to inherit the throne and spent his early life in the shadow of his elder brother, Edward. He served in the Royal Navy and Royal Air Force during World War I, and after the war took on the usual round of public engagements. He married Lady Elizabeth Bowes-Lyon in 1923, and they had two daughters, Elizabeth and Margaret. George's elder brother ascended the throne as Edward VIII on the death of their father in 1936. However, less than a year later Edward revealed his desire to marry the divorced American socialite Wallis Simpson. British Prime Minister Stanley Baldwin advised Edward that for political and Formal portrait, c. 1940–46 religious reasons he could not marry Mrs Simpson and remain king. Edward abdicated in order to marry, and George King of the United Kingdom and the British ascended the throne as the third monarch of the House of Dominions (more...) Windsor. Reign 11 December 1936 – 6 February On the day of his accession, the parliament of the Irish Free 1952 State removed the monarch from its constitution. -
Rm Tmjtwsmmw a NEWS BULLETIN
rm tMJtWsmmw A NEWS BULLETIN p u b l i s h e d q u a r t e r l y b y t h e NEW ZEALAND ANTARCTIC SOCIETY (INC) •-**, AN EMPEROR PENGUIN LEADS ITS CHICKS ALONG THE ICE AT CAPE CROZIER, ROSS ISLAND. THE EIGHTH CONSULTATIVE MEETING OF THE ANTARCTIC TREATY NATIONS IN OSLO HAS RECOMMENDED THAT THE CAPE CROZIER LAND AREA WHERE THE ADELIE PENGUINS NEST, AND THE ADJACENT FAST ICE WHERE THE EMPEROR PENGUINS BREED ANNUALLY SHOULD BE DESIG NATED A SITE OF SPECIAL SCIENTIFIC INTEREST. Photo: R. C. Kingsbury. VrtlVOI. 7/, KinISO. 7 / RegisteredWellington, atNew Post Zealand, Office asHeadquarters. a magazine. Cpnipm|.praepteiTIDer, 1975IV/3 SOUTH GEORGIA SOUTH SANDWICH Is f S O U T H O R K N E Y I s x \ * £ & * * — ■ /o Orcadas arg M FALKLAND Is /6Signy I.u.k. , AV\60-W / ,' SOUTH AMERICA / / \ f B o r g a / N I S 4 S O U T H a & WEDDELL \ I SA I / %\ ',mWBSSr t y S H E T L A N D ^ - / Halley Bayf drowning maud land enderby ;n /SEA UK.v? COATSLd / LAND iy (General Belgrano arg ANTARCTIC iXf Mawson MAC ROBERTSON tAND /PENINSULA'^ (see map below) JSobral arg / Siple U S.A Amundsen-Scott I queen MARY LAND ^Mirny [ELLSWORTH"" LAND ° Vostok ussr \ .*/ Ross \"V Nfe ceShef -\? BYRD LAND/^_. \< oCasey Jj aust. WILKES LAND Russkaya USSR./ R O S S | n z j £ \ V d l , U d r / SEA I ^-/VICTORIA .TERRE ^ #^7 LAND \/ADELIE,,;? } G E O R G E \ I L d , t / _ A ? j r . -
Glacial History of the Antarctic Peninsula Since the Last Glacial Maximum—A Synthesis
Glacial history of the Antarctic Peninsula since the Last Glacial Maximum—a synthesis Ólafur Ingólfsson & Christian Hjort The extent of ice, thickness and dynamics of the Last Glacial Maximum (LGM) ice sheets in the Antarctic Peninsula region, as well as the pattern of subsequent deglaciation and climate development, are not well constrained in time and space. During the LGM, ice thickened considerably and expanded towards the middle–outer submarine shelves around the Antarctic Peninsula. Deglaciation was slow, occurring mainly between >14 Ky BP (14C kilo years before present) and ca. 6 Ky BP, when interglacial climate was established in the region. After a climate optimum, peaking ca. 4 - 3 Ky BP, a cooling trend started, with expanding glaciers and ice shelves. Rapid warming during the past 50 years may be causing instability to some Antarctic Peninsula ice shelves. Ó. Ingólfsson, The University Courses on Svalbard, Box 156, N-9170 Longyearbyen, Norway; C. Hjort, Dept. of Quaternary Geology, Lund University, Sölvegatan 13, SE-223 63 Lund, Sweden. The Antarctic Peninsula (Fig. 1) encompasses one Onshore evidence for the LGM ice of the most dynamic climate systems on Earth, extent where the natural systems respond rapidly to climatic changes (Smith et al. 1999; Domack et al. 2001a). Signs of accelerating retreat of ice shelves, Evidence of more extensive ice cover than today in combination with rapid warming (>2 °C) over is present on ice-free lowland areas along the the past 50 years, have raised concerns as to the Antarctic Peninsula and its surrounding islands, future stability of the glacial system (Doake et primarily in the form of glacial drift, erratics al. -
Formation of a Large Ice Depression on Dålk Glacier (Larsemann
Journal of Glaciology Formation of a large ice depression on Dålk Glacier (Larsemann Hills, East Antarctica) caused by the rapid drainage of an englacial cavity Article Cite this article: Boronina A, Popov S, Alina Boronina1,2 , Sergey Popov2,3 , Galina Pryakhina2, Pryakhina G, Chetverova A, Ryzhova E, Grigoreva S (2021). Formation of a large ice Antonina Chetverova2,4, Ekaterina Ryzhova5 and Svetlana Grigoreva2,4 depression on Dålk Glacier (Larsemann Hills, East Antarctica) caused by the rapid drainage 1State Hydrological Institute (SHI), 23 2nd line Vasilyevsky Island, St. Petersburg 199004, Russia; 2Saint Petersburg of an englacial cavity. Journal of Glaciology State University (SPbU), 7-9 Universitetskaya Emb., St. Petersburg 199034, Russia; 3Polar Marine Geosurvey 1–16. https://doi.org/10.1017/jog.2021.58 Expedition (PMGE), 24 Pobedy Str., Lomonosov, St. Petersburg 198412, Russia; 4Arctic and Antarctic Research 5 Received: 21 November 2020 Institute (AARI), 38 Bering Str., St. Petersburg 199397, Russia and Geophyspoisk LLC, 15 26th line Vasilyevsky Revised: 1 May 2021 Island, St. Petersburg 199106, Russia Accepted: 4 May 2021 Abstract Keywords: Antarctic glaciology; glacier hazards; glacier In the afternoon of 30 January 2017, a catastrophic outburst flood occurred in the Larsemann hydrology; glacier modelling; ground- Hills (Princess Elizabeth Land, East Antarctica). The rapid drainage of both a thin supraglacial penetrating radar layer of water (near Boulder Lake) and Lake Ledyanoe into the englacial Lake Dålk provoked Author for correspondence: its overfill and outburst. As a result, a depression of 183 m × 220 m was formed in the place Alina Boronina, where Lake Dålk was located. This study summarises and clarifies the current state of knowledge E-mail: [email protected] on the flood that occurred in 2017. -
Retention Time of Lakes in the Larsemann Hills Oasis, East
Retention time of lakes in the Larsemann Hills oasis, East Antarctica Elena Shevnina1, Ekaterina Kourzeneva1, Yury Dvornikov2, Irina Fedorova3 1Finnish Meteorological Institute, Helsinki, Finland. 2 Department of Landscape Design and Sustainable Ecosystems, Agrarian-Technological Institute, RUDN University, 5 Moscow, Russia 3Saint-Petersburg State University, St. Petersburg, Russia. Correspondence to: Elena Shevnina ([email protected]) Abstract. The study gives first estimates of water transport time scales for five lakes located in the Larsemann Hills oasis (69º23´S, 76º20´E) in East Antarctica. We estimated the lake retention time (LRT) as a ratio of the lake volume to the inflow 10 and outflow terms of a lake water balance equation. The LRT was evaluated for lakes of epiglacial and land-locked types, and it was assumed that these lakes are monomictic with water exchange existing during the warm season only. We used hydrological observations collected in 4 seasonal field campaigns to evaluate the LRT. For the epiglacial lakes Progress and Nella/Scandrett, the LRT was estimated at 12–13 and 4–5 years, respectively. For the land-locked lakes Stepped, Sarah Tarn and Reid, our results show a big difference in the LRT calculated from the outflow and inflow terms of the water balance 15 equation. The LRT for these lakes vary depending on the methods and errors inherent to them. We suggest to rely on the estimations from the outflow terms since they are based on the hydrological measurements with better quality. Lake Stepped exchange water within less then 1.5 years. Lake Sarah Tarn and Lake Reid are endorheic ponds with the water loss mainly through evaporation, their LRT was estimated as 21–22 years and 8–9 years, respectively. -
Insights on the Environmental Impacts Associated with Visible Disturbance of Ice-Free Ground in Antarctica SHAUN T
Antarctic Science 31(6), 304–314 (2019) © Antarctic Science Ltd 2019. 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. doi:10.1017/S0954102019000440 Insights on the environmental impacts associated with visible disturbance of ice-free ground in Antarctica SHAUN T. BROOKS 1, PABLO TEJEDO2 and TANYA A. O'NEILL3,4 1Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia 2Departamento de Ecología, Universidad Autónoma de Madrid, Madrid, Spain 3Environmental Research Institute, University of Waikato, Hamilton, New Zealand 4School of Sciences, University of Waikato, Hamilton, New Zealand [email protected] Abstract: The small ice-free areas of Antarctica provide an essential habitat for most evident terrestrial biodiversity, as well as being disproportionately targeted by human activity. Visual detection of disturbance within these environments has become a useful tool for measuring areas affected by human impact, but questions remain as to what environmental consequences such disturbance actually has. To answer such questions, several factors must be considered, including the climate and biotic and abiotic characteristics. Although a body of research has established the consequences of disturbance at given locations, this paper was conceived in order to assess whether their findings could be generalized as a statement across the Antarctic continent. From a review of 31 studies within the Maritime Antarctic, Continental Antarctic and McMurdo Dry Valleys regions, we found that 83% confirmed impacts in areas of visible disturbance. -
Manuscript (Supplement Shevnina Etal2021.Xlsx)
Retention time of lakes in the Larsemann Hills oasis, East Antarctica Elena Shevnina1, Ekaterina Kourzeneva1, Yury Dvornikov2, Irina Fedorova3 1Finnish Meteorological Institute, Helsinki, Finland. 2 Department of Landscape Design and Sustainable Ecosystems, Agrarian-Technological Institute, RUDN University, 5 Moscow, Russia 3Saint-Petersburg State University, St. Petersburg, Russia. Correspondence to: Elena Shevnina ([email protected]) Abstract. This study provides first estimates of water transport time scale for five lakes located in the Larsemann Hills oasis (69º23´S, 76º20´E) in East Antarctica. We estimated lake retention time (LRT) as a ratio of lake volume to the inflow and 10 outflow terms of a lake water balance equation. The LRT was evaluated for lakes of epiglacial and land-locked types, and it was assumed that these lakes are monomictic, with water exchange occurring during the warm season only. We used hydrological observations collected in 4 seasonal field campaigns to evaluate the LRT. For the epiglacial lakes Progress and Nella/Scandrett, the LRT was estimated at 12–13 and 4–5 years, respectively. For the land-locked lakes Stepped, Sarah Tarn and Reid, our results show a great difference in the LRT calculated from the outflow and inflow terms of the water balance 15 equation. The LRTs for these lakes vary depending on the methods and errors inherent to them. We relied on the estimations from the outflow terms, since they are based on hydrological measurements with better quality. Lake Stepped exchanged water within less than 1.5 years. Lake Sarah Tarn and Lake Reid are endorheic ponds, with water loss mainly through evaporation. -
National Science Foundation § 670.29
National Science Foundation § 670.29 the unique natural ecological system ASPA 115 Lagotellerie Island, Mar- in that area; and guerite Bay, Graham Land (c) Where a management plan exists, ASPA 116 New College Valley, information demonstrating the consist- Caughley Beach, Cape Bird, Ross Is- ency of the proposed actions with the land management plan. ASPA 117 Avian Island, Marguerite Bay, Antarctic Peninsula § 670.29 Designation of Antarctic Spe- ASPA 118 Summit of Mount Mel- cially Protected Areas, Specially bourne, Victoria Land Managed Areas and Historic Sites ASPA 119 Davis Valley and Forlidas and Monuments. Pond, Dufek Massif, Pensacola Moun- (a) The following areas have been tains designated by the Antarctic Treaty ASPA 120 Pointe-Geologie Parties for special protection and are Archipelego, Terre Adelie hereby designated as Antarctic Spe- ASPA 121 Cape Royds, Ross Island cially Protected Areas (ASPA). The ASPA 122 Arrival Heights, Hut Point Antarctic Conservation Act of 1978, as Peninsula, Ross Island amended, prohibits, unless authorized ASPA 123 Barwick and Balham Val- by a permit, any person from entering leys, Southern Victoria Land or engaging in activities within an ASPA 124 Cape Crozier, Ross Island ASPA. Detailed maps and descriptions ASPA 125 Fildes Peninsula, King of the sites and complete management George Island (25 de Mayo) plans can be obtained from the Na- ASPA 126 Byers Peninsula, Living- tional Science Foundation, Office of ston Island, South Shetland Islands Polar Programs, National Science ASPA 127 Haswell Island Foundation, Room 755, 4201 Wilson ASPA 128 Western shore of Admiralty Boulevard, Arlington, Virginia 22230. Bay, King George Island, South Shet- ASPA 101 Taylor Rookery, Mac. -
Whitehouse Et Al., 2012B) and the Alexander Island Has a Mean Annual Air Temperature of C
Quaternary Science Reviews 177 (2017) 189e219 Contents lists available at ScienceDirect Quaternary Science Reviews journal homepage: www.elsevier.com/locate/quascirev Ice-dammed lateral lake and epishelf lake insights into Holocene dynamics of Marguerite Trough Ice Stream and George VI Ice Shelf, Alexander Island, Antarctic Peninsula * Bethan J. Davies a, b, , Michael J. Hambrey b, Neil F. Glasser b, Tom Holt b, Angel Rodes c, John L. Smellie d, Jonathan L. Carrivick e, Simon P.E. Blockley a a Centre for Quaternary Research, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK b Institute of Geography and Earth Sciences, Aberystwyth University, Ceredigion, SY23 3DB, Wales, UK c SUERC, Rankine Avenue, East Kilbride, G75 0QF, Scotland, UK d Department of Geology, University of Leicester, Leicester, LE1 7RH, UK e School of Geography and Water@leeds, University of Leeds, Woodhouse Lane, Leeds, West Yorkshire, LS2 9JT, UK article info abstract Article history: We present new data regarding the past dynamics of Marguerite Trough Ice Stream, George VI Ice Shelf Received 5 June 2017 and valley glaciers from Ablation Point Massif on Alexander Island, Antarctic Peninsula. This ice-free Received in revised form oasis preserves a geological record of ice stream lateral moraines, ice-dammed lakes, ice-shelf mo- 1 October 2017 raines and valley glacier moraines, which we dated using cosmogenic nuclide ages. We provide one of Accepted 12 October 2017 the first detailed sediment-landform assemblage descriptions of epishelf lake shorelines. Marguerite Trough Ice Stream imprinted lateral moraines against eastern Alexander Island at 120 m at Ablation Point Massif. During deglaciation, lateral lakes formed in the Ablation and Moutonnee valleys, dammed against Keywords: Holocene the ice stream in George VI Sound. -
Larsemann Hills, East Antarctica
Measure 2 (2007) Annex B Management Plan for Antarctic Specially Managed Area No. 6 LARSEMANN HILLS, EAST ANTARCTICA 1. Introduction 1.1 Geography The Larsemann Hills is an ice-free area of 40 km2, located approximately halfway between the Vestfold Hills and the Amery Ice Shelf on the south-eastern coast of Prydz Bay, Princess Elizabeth Land, East Antarctica (69o30’S, 76o19’58”E) (Map A). The ice-free area consists of two major peninsulas (Stornes and Broknes), four minor peninsulas, and approximately 130 near shore islands. The eastern-most peninsula, Broknes, is further divided into western and eastern components by Nella Fjord. The closest significant ice-free areas are the Bølingen Islands (69o31’58”S, 75o42’E) 25 km to the south-west and the Rauer Islands (68 o50’59”S, 77o49’58”E) 60 km to the north-east. 1.2 Human presence 1.2.1 History of human visitation The Larsemann Hills area was first charted by a Norwegian expedition led by Christensen in 1935, and brief visits were made by several nations during the following 50 years, but human activity of a significant or sustained nature did not occur until the mid-1980s. The three year period from 1986 to 1989 saw rapid infrastructure development in the area: an Australian summer research base (Law Base), a Chinese year-round research station (Zhongshan) and two Russian research stations (Progress I and Progress II) were established within approximately 3 km of each other on eastern Broknes. During this period a 2000 m skiway was also operated by Russia on the ice plateau south of Broknes, and used for over 100 inter-continental and intra- continental flights. -
Structure and Sedimentology of George VI Ice Shelf, Antarctic Peninsula Hambrey, Michael; Davies, Bethan; Glasser, Neil; Holt, Tom; Smellie, John; Carrivick, Jonathan
Aberystwyth University Structure and sedimentology of George VI Ice Shelf, Antarctic Peninsula Hambrey, Michael; Davies, Bethan; Glasser, Neil; Holt, Tom; Smellie, John; Carrivick, Jonathan Published in: Journal of the Geological Society DOI: 10.1144/jgs2014-134 Publication date: 2015 Citation for published version (APA): Hambrey, M., Davies, B., Glasser, N., Holt, T., Smellie, J., & Carrivick, J. (2015). Structure and sedimentology of George VI Ice Shelf, Antarctic Peninsula: Implications for ice-sheet dynamics and landform development. Journal of the Geological Society, 172(5), 599-613. https://doi.org/10.1144/jgs2014-134 General rights Copyright and moral rights for the publications made accessible in the Aberystwyth Research Portal (the Institutional Repository) are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the Aberystwyth Research Portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the Aberystwyth Research Portal Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. tel: +44 1970 62 2400 email: [email protected] Download date: 07. Oct. 2021 XXX10.1144/jgs2014-134M. J. Hambrey et al.Ice-shelf dynamics, sediments and landforms 2015 research-articleResearch article10.1144/jgs2014-134Structure and sedimentology of George VI Ice Shelf, Antarctic Peninsula: implications for ice-sheet dynamics and landform developmentMichael J.