DOCSLIB.ORG

Greenland Telescope: Single-Dish Science, Instrumentation Requirements Nimesh a Patel Satoki Matsushita Center for Astrophysics | Harvard & Smithsonian ASIAA

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Greenland Telescope: Single-Dish Science, Instrumentation Requirements Nimesh a Patel Satoki Matsushita Center for Astrophysics | Harvard & Smithsonian ASIAA Greenland Telescope: Single-dish science, instrumentation requirements Nimesh A Patel Satoki Matsushita Center for Astrophysics | Harvard & Smithsonian ASIAA Nimesh Patel October 2018, Thule AFB 23 May 2019, EAO Futures meeting, Nanjing !1 Outline: • Current status • Single dish science goals • Summit Station • Future receivers development Nimesh Patel October 2018, Thule AFB 23 May 2019, EAO Futures meeting, Nanjing !2 Completion of mechanical assembly of the Greenland Telescope 10 August 2017 !3 Thule Phase 1 Activities 2017-2019 • Antenna assembly (mechanical + electrical) completed at Thule Air Base, Greenland - September 2017 • Hydrogen maser installed in September 2017 • Servo tuning and tests in progress - October 2017 • Fringes demonstrated at Maunakea, with SMA + JCMT, using 230 GHz receivers and VLBI backend • 86 & 230 GHz receivers installed in late November 2017 • Pointing calibration in November 2017 • Joined the EHT run in April 2018 October 2017 First fringes on ALMA-Thule baseline, 28 January 2018 Mk4/DiFX fourfit 3.19 rev 2292 3C279.0166CV, 028-0843_b4, AG ALMA - THULE, fgroup B, pol XL Fringe quality 9 SNR 10.8 Int time 239.889 Amp 0.136 Phase 134.4 PFD 1.6e-17 Delays (us) SBD -0.000661 MBD 0.006959 Fringe rate (Hz) -0.000040 Ion TEC 0.000 Ref freq (MHz) 228221.3906 AP (sec) 0.205 Exp. e18j28 Exper # 3635 Yr:day 2018:028 Start 084300.00 Stop 084700.03 FRT 084500.00 Corr/FF/build 2018:079:230135 2018:080:102304 2018:080:065037 RA & Dec (J2000) 12h56m11.1666s Amp. and Phase vs. time for each freq., 7 segs, 195 APs / seg (39.94 sec / seg.), time ticks 60 sec -5˚47’21.525" U Validity !5 L A G 228221.39228279.98228338.58228397.17228455.77228514.36228572.95228631.55228690.14228748.73228807.33228865.92228924.52228983.11229041.70229100.30229158.89229217.48229276.08229334.67229393.27229451.86229510.45229569.05229627.64229686.23229744.83229803.42229862.02229920.61229979.20Freq (MHz) All 59.5 129.3 52.2 113.7 178.3 155.5 156.7 85.4 164.5 145.9 133.9 159.8 148.7 109.4 122.6 152.2 162.2 151.0 -158.7 162.0 135.5 126.4 134.4 137.8 123.9 133.3 116.4 98.1 139.7 52.7 95.7 Phase 134.4 0.3 0.1 0.1 0.1 0.2 0.2 0.1 0.1 0.2 0.2 0.1 0.2 0.2 0.2 0.1 0.2 0.2 0.2 0.1 0.2 0.2 0.1 0.1 0.2 0.3 0.1 0.2 0.2 0.2 0.0 0.1 Ampl. 0.1 893.0 527.3 478.9 415.5 53.8 781.4 278.3 111.5 309.4 497.0 894.5 735.7 128.2 348.1 773.5 690.3 568.2 808.7 449.6 86.1 322.2 383.1 703.2 250.8 464.5 300.5 713.9 458.8 777.4 896.6 477.0 Sbd box 464.8 U/L 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 1172/0 APs used A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PC freqs G 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PC freqs A:G 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 PC phase A:G 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 0:0 Manl PC A 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 PC amp G 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 B00UX B01UX B02UX B03UX B04UX B05UX B06UX B07UX B08UX B09UX B10UX B11UX B12UX B13UX B14UX B15UX B16UX B17UX B18UX B19UX B20UX B21UX B22UX B23UX B24UX B25UX B26UX B27UX B28UX B29UX B30UX Chan ids A Tracks B00UL B01UL B02UL B03UL B04UL B05UL B06UL B07UL B08UL B09UL B10UL B11UL B12UL B13UL B14UL B15UL B16UL B17UL B18UL B19UL B20UL B21UL B22UL B23UL B24UL B25UL B26UL B27UL B28UL B29UL B30UL Chan ids G Tracks Group delay (usec)(model) 1.53950718118E+04 Apriori delay (usec) 1.53950648530E+04 Resid mbdelay (usec) 6.95887E-03 +/- 2.8E-05 Sband delay (usec) 1.53950641917E+04 Apriori clock (usec) -2.1089119E+03 Resid sbdelay (usec) -6.61241E-04 +/- 8.8E-04 Phase delay (usec) 1.53950648546E+04 Apriori clockrate (us/s) -6.6459997E-06 Resid phdelay (usec) 1.63576E-06 +/- 1.3E-07 Delay rate (us/s) 5.37017872807E-02 Apriori rate (us/s) 5.37017874558E-02 Resid rate (us/s) -1.75172E-10 +/- 9.3E-10 Total phase (deg) 317.6 Apriori accel (us/s/s) -7.73193107321E-05 Resid phase (deg) 134.4 +/- 10.6 RMS Theor. Amplitude 0.136 +/- 0.013 Pcal mode: MANUAL, MANUAL PC period (AP’s) 5, 5 ph/seg (deg) 15.5 14.0 Search (4096X128) 0.136 Pcal rate: 0.000E+00, 0.000E+00 (us/s) sb window (us) -2.000 2.000 amp/seg (%) 14.8 24.4 Interp. 0.000 Bits/sample: 2x2 SampCntNorm: disabled mb window (us) -0.009 0.009 ph/frq (deg) 35.9 29.5 Inc. seg. avg. 0.137 Sample rate(MSamp/s): 116 dr window (ns/s) -0.011 0.011 amp/frq (%) 43.9 51.4 Inc. frq. avg. 0.140 Data rate(Mb/s): 7192 nlags: 464 t_cohere infinite ion window (TEC) 0.00 0.00 A: az 13.2 el 72.4 pa -167.9 G: az 175.1 el 7.5 pa -1.5 u,v (fr/asec) -1044.494 -30143.124 simultaneous interpolator Control file: cf_3601 Input file: /data-sc05/mike/e18j28/3635/028-0843_b4/AG..0166CV Output file: /data-sc05/mike/e18j28/3635/028-0843_b4/AG.B.1.0166CV EHT observing run April 2018 Keiichi Asada (ASIAA) Hiroaki Nishioka (ASIAA) ChenYu Yu (ASIAA) Nimesh Patel (CfA) !6 31 March - 9 April 2019, Global Millimeter-wave VLBI Array observations at 86 GHz !7 Hydrogen maser house Control room, weather station !8 Current Instrumentation !9 Johnson Han (ASIAA) 2SB !10 !11 Johnson Han (ASIAA) !12 Two ROACH2 spectrometers, each with two IF inputs of 2.048 GHz b/w, 32768 channels CASPER ROACH2, dual 5 Gsps ADCs, Octal 10 Gbps Ethernet !13 Summit Station !14 Thule Air Base Position: 76.5° North, 68.7° West Altitude: 77 m Temperature: 5 C to – 25 C (average) Summit Station Position: 72.5° North, 38.5° West Altitude: 3,200 m Temperature: - 10 C to - 50 C (average) !15 View from level-2 platform Beginning of Ice sheet (traverse) !16 Publications of the Astronomical Society of the Pacific, 129:025001 (11pp), 2017 February Matsushita et al. Publications of the Astronomical Society of the Pacific, 129:025001 (11pp), 2017 February Matsushita et al. Publications of the Astronomical Society of the Pacific, 129:025001 (11pp), 2017 February doi:10.1088/1538-3873/129/972/025001 © 2016. The Astronomical Society of the Pacific. All rights reserved. Printed in the U.S.A. 3.5 Year Monitoring of 225GHz Opacity at the Summit of Greenland Satoki Matsushita1, Keiichi Asada1, Pierre L. Martin-Cocher1, Ming-Tang Chen1, Paul T. P. Ho1, Makoto Inoue1, Patrick M. Koch1, Scott N. Paine2, and David D. Turner3 1 Academia Sinica Institute of Astronomy and Astrophysics, P.O. Box 23-141, Taipei 10617, Taiwan, Republic of China 2 Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-78, Cambridge, MA 02138, USA 3 Global Systems Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, 325 Broadway, Boulder, CO, 80305, USA Figure 2. Time variationReceived 2016 plot September of 19; 225 accepted GHz 2016 opacity October 28; at published the summit 2016 December of 21 Greenland ice sheet. The measurement has been startedAbstract from 2011 August 17, which is Figure 3. Monthly quartile variation of 225 GHz opacity. Solid, dashed, and deWefined present as the the 3.5 day years 1monitoring in this results diagram. of 225 GHz opacity at the summit of the Greenland ice sheet (Greenland dotted lines are 25%, 50%, and 75% quartiles, respectively. The first and the Summit Camp) at an altitude of 3200 m using a tipping radiometer. We chose this site as our submillimeter telescope last months of this measurement, namely 2011 August and 2015 February, (Greenland Telescope) site, because conditions are expected to have low submillimeter opacity and because its fi location offers favorable baselines to existing submillimeter telescopes for global-scale Very Long Baseline have fewer data than the other months, so that the statistical signi cance is low.
Load more

Recommended publications
  • Catalogue of Place Names in Northern East Greenland
    Catalogue of place names in northern East Greenland In this section all officially approved, and many Greenlandic names are spelt according to the unapproved, names are listed, together with explana- modern Greenland orthography (spelling reform tions where known. Approved names are listed in 1973), with cross-references from the old-style normal type or bold type, whereas unapproved spelling still to be found on many published maps. names are always given in italics. Names of ships are Prospectors place names used only in confidential given in small CAPITALS. Individual name entries are company reports are not found in this volume. In listed in Danish alphabetical order, such that names general, only selected unapproved names introduced beginning with the Danish letters Æ, Ø and Å come by scientific or climbing expeditions are included. after Z. This means that Danish names beginning Incomplete documentation of climbing activities with Å or Aa (e.g. Aage Bertelsen Gletscher, Aage de by expeditions claiming ‘first ascents’ on Milne Land Lemos Dal, Åkerblom Ø, Ålborg Fjord etc) are found and in nunatak regions such as Dronning Louise towards the end of this catalogue. Å replaced aa in Land, has led to a decision to exclude them. Many Danish spelling for most purposes in 1948, but aa is recent expeditions to Dronning Louise Land, and commonly retained in personal names, and is option- other nunatak areas, have gained access to their al in some Danish town names (e.g. Ålborg or Aalborg region of interest using Twin Otter aircraft, such that are both correct). However, Greenlandic names be - the remaining ‘climb’ to the summits of some peaks ginning with aa following the spelling reform dating may be as little as a few hundred metres; this raises from 1973 (a long vowel sound rather than short) are the question of what constitutes an ‘ascent’? treated as two consecutive ‘a’s.
    [Show full text]
  • Sustaining the Science Impact of Summit Station, Greenland a White Paper Produced from the Summit Station Science Summit
    Sustaining the Science Impact of Summit Station, Greenland A white paper produced from the Summit Station Science Summit. Summit Station Science Summit conveners and lead authors: Lora Koenig, National Snow and Ice Data Center, University of Colorado Bruce Vaughn, Institute of Arctic and Alpine Research, University of Colorado Acknowledgement of Funding: The lead authors would like to thank the National Science Foundation Arctic Science Section for funding this workshop and report through NSF award #PLR 1738123. Authors and Contact Information: Author Name Institution Address Email Lora Koenig NSIDC/University of Colorado National Snow and Ice Data [email protected] Center du University of Colorado UCB 449, 1540 30th Street Boulder CO 80303 Bruce Vaughn INSTAAR/University of Institute of Arctic and Alpine bruce.vaughn@colorad Colorado Research, University of o.edu Colorado UCB 450, 4001 Discovery Drive Boulder, CO 80303 John F. Burkhart University of Oslo Department of Geosciences, [email protected]. Sem Saelands vei 1, Oslo, no Norway 0371 Zoe Courville Thayer School of Engineering, Thayer School of [email protected] Dartmouth College and Cold Engineering, Dartmouth rmy.mil Regions Research and 14 Engineering Drive Engineering Laboratory (CRREL) Hanover, NH 03755 Jack Dibb Institute for the Study of Institute for the Study of [email protected] Earth, Oceans, and Space, Earth, Oceans, and Space University of New Hampshire Morse Hall University of New Hampshire 8 College Road Durham, NH 03824-3525 Robert Hawley Dartmouth College, Department Department of Earth robert.hawley@dartmo of Earth Sciences, Sciences, Dartmouth uth.edu College, 6105 Fairchild Hall Hanover, NH 03755 Richard B.
    [Show full text]
  • Winter Camp: a Blog from the Greenland Summit Lora Koenig, NASA Goddard Space Flight Center, [email protected]
    The Earth Observer March - April 2009 Volume 21, Issue 2 13 Winter Camp: A Blog from the Greenland Summit Lora Koenig, NASA Goddard Space Flight Center, [email protected] When temperatures turn cold, some people travel to a tropical destination to stay warm. Instead, Lora Koenig —a remote- sensing glaciologist at NASA’s Goddard Space Flight Center—donned layer upon layer of extra clothes to brave the harsh Arctic at the National Science Foundation’s (NSF) Greenland Summit Camp. Koenig lived and worked at the research station from November 2008–February 2009, making ground-truth measurements of the Greenland Ice Sheet to validate data collected by NASA’s Aqua, Terra, and Ice, Clouds, and land Elevation Satellite (ICESat) satellites. Koenig described her experience at Summit in a weekly blog, with excerpts from the first seven weeks of her stay presented here. Look for Part II of the story ofKoenig’s “Journey to Greenland’s Frozen Summit” in the May–June 2009 issue of The Earth Observer. The complete blog with color photos, along with a question & answer by Koenig, is available at: earthobservatory.nasa. gov/Features/GreenlandBlogKoenig/. Week One Introduction November 3, 2008 Hello! I’m a remote sensing glaciologist in the Cryospheric Sciences Branch at the NASA Goddard Space Flight Center (GSFC). My research uses satellites to monitor ice sheets and compares measurements from space to those taken on the ground. These interests have led me to spend this winter at Summit, Greenland (Latitude 72.5°N, Longitude 38.5°W). Over the course of this weekly blog, I will tell you about my life and science, in the middle of the Greenland Ice Sheet, in the middle of the winter.
    [Show full text]
  • Field Season 2008 Page 1 of 89
    NEEM Field Season 2008 Page 1 of 89 Field season 2008 North Greenland Eemian Ice drilling (NEEM) 2007-2011: NEEM camp construction and beginning of deep ice core drilling Prepared by Ice and Climate Group, NBI for The NEEM Steering Committee and Danish and Greenlandic authorities. Picture 1: NEEM camp and skiway, August 2007. Lars.B.Larsen, Simon G. Sheldon, Michael V. Strand, J.P.Steffensen Copenhagen, 060408 NEEM Field Season 2008 Page 2 of 89 (NEEM) 2007-2011: Season 2008. 5 NEEM 2008 schedule ................ 18 Accidents and Illness ............... 29 NEEM Drilling Liquid Properties Assigned Duties ........................ 39 ................................................. 56 Associated project: Earthquake NEEM Official Address in station at NEEM ...................... 15 Greenland. .............................. 28 AVIATION WEATHER REPORTS NEEM Site Weather Conditions 44 ................................................. 68 NEEM Steering Committee ...... 75 BAS radar description .............. 16 Personal field equipment ......... 27 Booze and Drugs ...................... 35 Personnel Transport 2008 ........ 35 Camp population. ...................... 24 Phone numbers: ....................... 79 Cargo shipments to Greenland 53 Positions in Greenland ............. 73 Communication plan ................ 69 Power Supplies ......................... 38 Coordination of LC-130 in Quartering and buildings. ........ 26 Kangerlussuaq ....................... 66 Scientific plan for NEEM 2008. .. 7 Details on CReSIS plans for the Shipping boxes
    [Show full text]
  • 2003 Exclusive Licences, 1 January 2004
    Annual Report 2003 Exclusive licences, 1 January 2004 Ilulissat Sisimiut Kangerlussuaq Tasiilaq 0 2040608100km0 Petroleum EnCana Corporation/NunaOil A/S Maniitsoq Minerals Angus & Ross PLC Brereton Engineering & Dev. Ltd. Bureau of Minerals and Petroleum Crew Development Corporation Falconbrigde Limited Gem Fields International Hudson Resources Inc. Nuuk Nalunaq Gold Mine A/S Navigator Exploration Corp. New Millennium Resources N.L. NunaMinerals A/S Rimbal Pty Ltd Skaergaard Minerals Corp. Vismand Exploration Inc. Application for new licence 0 20406080100km Application for renewal Narsaq Qaqortoq Nanortalik Topographic base: G/2.5M Vector © National Survey and Cadastre, Denmark / Geological Survey of Denmark and Greenland, 1997. UTM Zone 24, WGS84. 0 10 20 30 40 50 km Map of licences 1 January 2004 Example of map of licences in Greenland.The map is updated every 14 days on the first and sixteenth of the month on the Bureau of Minerals and Petroleum website www.bmp.gl and it can be printed from here. Preface Greenland is the world's largest island and has great potential been pivotal for the industry's interest in the licensing round. for becoming a significant supplier of mineral resources to the In addition, the Greenland government and the Danish govern- world market. However, making Greenland's potential for mi- ment have, in anticipation of the licensing round, adopted in- neral resources and water resources attractive for exploration ternationally competitive exploitation conditions which, apart is an important task, as is true for other poorly accessible land from corporation tax, include royalties on profits and partici- and marine areas where large areas are still almost unexplo- pation by NUNAOIL A/S in all exploration and exploitation li- red.
    [Show full text]
  • ESA Cryovex 2014
    ESA CryoVEx 2014 Airborne ASIRAS radar and laser scanner measurements during 2014 CryoVEx campaign in the Arctic S. M. Hvidegaard, J. E. Nielsen, L. Sandberg Sørensen, S. B. Simonsen, H. Skourup, R. Forsberg, V. Helm, and T. Bjerg National Space Institute (DTU Space) Technical University of Denmark November 2015 EUROPEAN SPACE AGENCY CONTRACT REPORT ESA Contract No. 4000110600/14/NL/FF/lf ESA CryoVEx 2014 Airborne ASIRAS radar and laser scanner measurements during 2014 CryoVEx campaign in the Arctic Authors: S. M. Hvidegaard1, J. E. Nielsen1, S. L. Sandberg Sørensen1, S. B. Simonsen1, H. Skourup1, R. Forsberg1, V. Helm2, and T. Bjerg1 1 National Space Institute, DTU Space, Denmark 2 Alfred Wegener Institute for Polar and Marine Research, Germany DTU Space National Space Institute Danish Technical University Technical Report, 2015 ISBN‐978‐87‐91694‐26‐4 http://www.space.dtu.dk ESA STUDY CONTRACT REPORT ESA CONTRACT NO SUBJECT CONTRACTOR 4000110600/14/NL/FF/lf Technical Support for airborne ASIRAS and laser National Space Institute scanner measurements during 2014 CryoVEx (DTU Space) campaign in the Arctic ESA CR No STAR CODE No of volumes 1 CONTRACTORS This is Volume No 1 REFERENCE CryoVEx 2014 ABSTRACT This report outlines the airborne field operations with the ESA airborne Ku‐band interferometric radar (ASIRAS), coincident airborne laser scanner (ALS) and vertical photography to acquire data over sea‐ and land ice along validation sites and CryoSat‐2 ground tracks. The airborne campaign was coordinated by DTU Space using the Norlandair Twin Otter (TF‐POF). The campaign consisted of two experiment periods: Mid‐march to early April and late April to mid‐May with focus on sea ice and land ice, respectively.
    [Show full text]
  • Field Season 2011 Page 1 of 107
    NEEM Field Season 2011 Page 1 of 107 Field season 2011 North Greenland Eemian Ice drilling (NEEM) 2007‐2012: NEEM 3rd season of deep ice core drilling and core processing Prepared by Ice and Climate Group, NBI for The NEEM Steering Committee and Danish and Greenlandic authorities. Picture 1: NEEM reaches bedrock , 27th July 2010. Lars.B.Larsen, Simon G. Sheldon, J.P.Steffensen Copenhagen, 250311 NEEM Field Season 2011 Page 2 of 107 Table of Contents NEEM 2007‐2012: Season 2011 .......................................................................................................... 7 Scientific plan for NEEM 2011 ............................................................................................................ 11 Logistic plan for NEEM 2011 .............................................................................................................. 12 Timeline. ...................................................................................................................................................... 12 Publications and out‐reach. ......................................................................................................................... 13 Moving the dome. ....................................................................................................................................... 13 Details on drilling. ........................................................................................................................................ 15 Details on science and processing plan. .....................................................................................................
    [Show full text]
  • GEOLOGICAL SURVEY of DENMARK and GREENLAND BULLETIN 21 · 2010 Exploration History and Place Names of Northern East Greenland
    GEOLOGICAL SURVEY OF DENMARK AND GREENLAND BULLETIN 21 · 2010 Exploration history and place names of northern East Greenland Anthony K. Higgins GEOLOGICAL SURVEY OF DENMARK AND GREENLAND MINISTRY OF CLIMATE AND ENERGY Geological Survey of Denmark and Greenland Bulletin 21 Keywords Exploration history, northern East Greenland, place names, Lauge Koch’s geological expeditions, Caledonides. Cover illustration Ättestupan, the 1300 m high cliff on the north side of Kejser Franz Joseph Fjord discovered and so named by A.G. Nathorst in 1899. Frontispiece: facing page Map of Greenland by Egede (1818), illustrating the incorrect assumption that the Norse settlements of Greenland were located in South-West and South-East Greenland. Many of the localities named in the Icelandic Sagas are placed on this map at imaginary sites on the unknown east coast of Greenland. The map is from the second English edition of Hans Egede’s ‘Description of Greenland’, a slightly modified version of the first English edition published in 1741. Chief editor of this series: Adam A. Garde Editorial board of this series: John A. Korstgård, Department of Earth Sciences, University of Aarhus; Minik Rosing, Geological Museum, University of Copenhagen; Finn Surlyk, Department of Geography and Geology, University of Copenhagen Scientific editor of this volume: Adam A. Garde Editorial secretaries: Jane Holst and Esben W. Glendal Referees: Ian Stone (UK) and Christopher Jacob Ries (DK) Illustrations: Eva Melskens Maps: Margareta Christoffersen Digital photographic work: Benny M. Schark Layout and graphic production: Annabeth Andersen Geodetic advice: Willy Lehmann Weng Printers: Rosendahls · Schultz Grafisk a/s, Albertslund, Denmark Manuscript received: 22 April 2010 Final version approved: 1 July 2010 Printed: 21 December 2010.
    [Show full text]
  • The British Stauning Alps Expedition Greenland 2017
    THE BRITISH STAUNING ALPS EXPEDITION GREENLAND 2017 EXPEDITION DATES 4TH APRIL – 5TH MAY The expedition ventured into unexplored areas of the remote Stauning Alps region in Central-Eastern Greenland. The team were self-sufficient throughout, carrying all kit, food, shelter, scientific instrumentation and travelling on skis, pulling pulks. A huge physical challenge. Objectives were threefold: explore, research and inspire. TABLE OF CONTENTS CONTENTS Introduction _______________________________________________________________________ 2 Planning & Logistics _________________________________________________________________ 7 Financial Statements _______________________________________________________________ 25 The Expedition ____________________________________________________________________ 27 Science & Research ________________________________________________________________ 43 Exploration & Mountaineering _______________________________________________________ 48 Photograph comparison with past and present pictures ___________________________________ 56 Inspiration _______________________________________________________________________ 74 Conclusions ______________________________________________________________________ 79 Appendices ______________________________________________________________________ 80 THE MELT STREAMS ON THE BJORNBO GLACIER Page 1 of 105 INTRODUCTION INTRODUCTION This report gives an account of our expedition and details various other aspects including the planning, logistics, finance, equipment and food. It is
    [Show full text]
  • Air Greenland Annual Report 2018
    Annual Report 2018 1 The Group’s key figures and ratios (million DKK) 2014 2015 2016 2017 2018 Turnover 1,171.7 1,225.6 1,307.1 1,304.8 1,370.1 Content Profit or loss before financial items 82,6 90,5 35,6 75,8 79,1 04 About the Company Profit before tax 80,7 90,3 40,8 71,1 80,8 04 Endorsements Profit or loss for the year 52,7 60,0 25,6 44,9 52,1 06 Independent auditor’s report Tangible fixed assets 865,0 865,0 745,4 764,3 737,2 08 Management Report Equity 784,8 903,6 683,6 700,7 717,9 Group profile Balance sheet total 1,356.9 1,379.3 1,121.7 1,170.2 1,244.1 Highlights 2018 Dividends for the financial year 30,0 274,0 37,0 22,5 - Financial development Investments in tangible fixed assets 101,8 129,9 78,7 148,0 126,2 Risk management Number of employees (year-end) 635 634 621 614 631 Growth and development Profit margin 7.0% 7.4% 2.7% 5.8% 5.8% Charter in a league of its own Return on invested capital after tax incl. goodwill 8.0% 10.0% 4.1% 9.4% 10.8% Aviation in the Arctic Financial gearing -0.2 -0.2 -0.2 -0.2 -0.4 HR and CSR Return on equity 6.9% 7.1% 3.2% 6.5% 7.3% Expectations for 2019 31 Accounting practices Equity ratio 57.8% 65.5% 60.9% 59.9% 57.7% 38 Annual Report Income statement for January 1st to December 31st Balance at December 31st Statistical information Unit of measurement 2014 2015 2016 2017 2018 Statement of changes in equity as of 31st December 2018 Route network length Km 17,709 16,879 18,340 17,603 17,603 Cash flow statement Number of towns serviced Towns 22 22 22 16 16 Notes to the Annual Report Flown km in regular traffic
    [Show full text]
  • Field Season 2015 Page 1 of 96
    EGRIP/RECAP Field Season 2015 Page 1 of 96 Field season 2015 East GReenland Ice core Project (EGRIP) 2015-2020: Moving NEEM camp to new EGRIP drilling site. and REnland ice CAp Project (RECAP) 2015. Prepared by Ice and Climate Group, NBI for The EGRIP and RECAP project responsibles and participants and Danish and Greenlandic authorities. Picture 1: Left: Velocity field of East Greenland ice stream with EGRIP (NEGIS 2) marked. Right: The Renland glacier with proposed RECAP drilling site. Dorthe Dahl-Jensen, Bo M. Vinther, Lars.B.Larsen, Simon G. Sheldon, J.P.Steffensen Copenhagen, 130415 NEEM Field Season 2012 Page 2 of 96 Table of Contents EGRIP and RECAP 2015 introduction ....................................................................................................... 5 EGRIP 2015-2020: Season 2015 ................................................................................................................ 6 Scientific plan for EGRIP 2015 ................................................................................................................... 9 Associated projects at EGRIP: ................................................................................................................. 11 Logistic plan for EGRIP 2015 ................................................................................................................... 12 RECAP (The REnland ice CAP project) 2015: ...................................................................................................... 14 Scientific plan for RECAP 2015 ...............................................................................................................
    [Show full text]
  • Nordur Sigling (North Sailing)
    Nordur Sigling (North Sailing) reenland is the last item on my “Bucket List ,” my last great adventure. It‟s not because I‟ve seen everything in this wide, wonderful world, but because (1) I‟ve been fortunate to G have visited every place I‟ve wanted to see on seven continents and (2) I recognize that I‟m “running out of steam.” One of my mottoes has long been to recognize physical, mental (or financial) limitations and “quit while you‟re ahead.” I‟ve flown over the (80% ice-capped) white wasteland of this near-continent and been intrigued looking down on the sparsely populated towns and villages hugging its western coastline and the even fewer hints of civilization on the eastern fringes. Greenland has no roads between towns; no railroads either. To get around in Greenland you have to fly, or (sea ice permitting) to commute by boat or ferry…or overland by dogsled. This world‟s largest island is about one-third the size of Australia - the world‟s smallest continent (yes, much smaller than Antarctica). In a more familiar context, it‟s about four times the size of Texas and nearly 100 times the size of Vermont with a population (56,000) of less than 10% of our state. Unless his biographers, Stephen May or John Hayes, tell me otherwise, Greenland is one of the few places James A. Michener did not get around to visiting...aside from Charleston, South Carolina. It is decidedly not (yet) a prime tourist destination…hence its attraction to me. There are plenty of tours to Greenland from Iceland or Copenhagen, but most are either one-day excursions to its capital Nuuk or to one of the other more populated east coast towns, to view some impressive calving glaciers in Disko Bay, or – for the more adventurous – a dog sled trek in winter.
    [Show full text]