600 KB; PDF Format
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Re-Introducing Sports Stores
780-594-4414 5118 50 Avenue, Cold Lake Helping you is what we do! www.northernlightsrealestate.com Approved Relocation Supplier Nous offrons un service bilingue Northern Lights Realty Ltd. INDEPENDENTLY OWNED AND OPERATED Volume 54 Number 5 www.couriernews.ca February 2, 2021 Re-introducing Sports Stores Joy Smith Joy Smith Introducing the newest member of the Col Sports Stores has a wide variety of outdoor activity equipment for the Defence Team to borrow, J.J. Parr Sports Centre staff, Megan Garrett. including several six-man ice fishing tents (pictured) as well as a few 4-man tents. Ice fishing Megan is the new Sports Stores Technician. gear included! JOY SMITH, REPORTER 4 Wing Cold Lake maintains several kilometres fishing gear are limited and they book up fast, so plan of groomed Cross Country Ski trails at the Cold ahead. A new face will be greeting patrons of the Col Lake Golf and Winter Club. Cross country ski boots, Pick up and returns to Sports Stores are by J.J. Parr Sports Centre Sports Stores. Megan Garrett skis and poles are available in a limited number appointment only as per COVID-19 regulations. has joined the PSP team as the new Sports Stores of sizes for children as well as adults. No helmets Military members and members of the Defence Team Technician. Raised in Moose Jaw, Megan made her are provided. can sign out equipment and gear necessary. Members way to Cold Lake via New Brunswick and British If skiing isn’t your speed then give snow shoeing signing out equipment will be asked to complete some Columbia, then returning to Moose Jaw to wait out a try. -
Ice Businesses at Turners Falls, Massachusetts Turners Falls Reporter
Ice Businesses at Turners Falls Ice Businesses at Turners Falls, Massachusetts Reported in the Turners Falls Reporter for the years in this compilation. August, 2017 Page 1 of 24 Ed Gregory Ice Businesses at Turners Falls Ice Businesses at Turners Falls, Massachusetts Reported in the Turners Falls Reporter for the years in this compilation Pages of the Turners Falls Reporter given in this compilation are verbatim. Grammar, Punctuation and Spelling are as in the archetype. Evident edits are displayed via [sic]1 Composed, printed & bound by Ed Gregory August, 2017 1 Thus; so. Used to indicate that a quoted passage, especially one containing an error or unconventional spelling, has been retained in its original form or written intentionally. August, 2017 Page 2 of 24 Ed Gregory Ice Businesses at Turners Falls Content - Year 1873 4 1913 18 1874 4 1914 19 1875 4 1915 19 1876 No editions available for 1876 or, from January,1877 to April, 1877 1877 4 1916 19 1878 4 1917 20 1879 5 1918 20 1880 No ice info. 1919 21 1881 5 1920 21 1882 5 1921 22 1883 6 1922 22 1884 7 -end- 1885 7 1886 7 1887 8 1888 8 1889 9 1890 9 1891 9 1892 9 1893 10 1894 10 1895 10 1896 11 1897 11 1898 11 1899 12 1900 12 1901 13 1902 13 1903 14 1904 14 1905 14 1906 14 1907 15 1908 15 1909 16 1910 17 1911 17 1912 17 August, 2017 Page 3 of 24 Ed Gregory Ice Businesses at Turners Falls Ice Businesses at Turners Falls, Massachusetts as reported in the Turners Falls Reporter for the years 1872 to 1922. -
Polar Ice Coring and IGY 1957-58 in This Issue
NEWSLETTER OF T H E N A T I O N A L I C E C O R E L ABORATORY — S CIE N C E M A N AGE M E N T O FFICE Vol. 3 Issue 1 • SPRING 2008 Polar Ice Coring and IGY 1957-58 In this issue . An Interview with Dr. Anthony J. “Tony” Gow Polar Ice Coring and IGY 1957-58 From the early 1950’s through the mid-1960’s, U.S. polar ice coring research was led by two U.S. Army An Interview with Dr. Tony Gow .... 1 Corps of Engineers research labs: the Snow, Ice, and Permafrost Research Establishment (SIPRE), and Upcoming Meetings ...................... 2 later, the Cold Regions Research and Engineering Laboratory (CRREL). One of the high-priority research Greenland Science projects recommended by the U.S. National Academy of Sciences/National Committee for IGY 1957-58 and Education Week ..................... 3 was to deep core drill into polar ice sheets for scientific purposes. To this end, SIPRE was tasked with Ice Core Working Group developing and running the entire U.S. ice core drilling and research program. Following the successful Members ....................................... 3 pre-IGY pilot drilling trials at Site-2 NW Greenland in 1956 (305 m) and 1957 (411 m), the SIPRE WAIS Divide turned their attention to deep ice core drilling in Antarctica for IGY 1957-58. Dr. Anthony J. (Tony) Ice Core Update ............................ 5 Gow (CRREL, retired) was one of the scientists on the project. In March 2008, the NICL-SMO had Ice Cores and POLAR-PALOOZA the opportunity to sit down with Dr. -
Comparative Saturn-Versus-Jupiter Tether Operation
Journal of Geophysical Research: Space Physics Comparative Saturn-Versus-Jupiter Tether Operation J. R. Sanmartin1 ©, J. Pelaez1 ©, and I. Carrera-Calvo1 Abstract Saturn, Uranus, and Neptune, among the four Giant Outer planets, have magnetic field B about 20 times weaker than Jupiter. This could suggest, in principle, that planetary capture and operation using tethers, which involve B effects twice, might be much less effective at Saturn, in particular, than at Jupiter. It was recently found, however, that the very high Jovian B itself strongly limits conditions for tether use, maximum captured spacecraft-to-tether mass ratio only reaching to about 3.5. Further, it is here shown that planetary parameters and low magnetic field might make tether operation at Saturn more effective than at Jupiter. Operation analysis involves electron plasma density in a limited radial range, about 1-1.5 times Saturn radius, and is weakly requiring as regards density modeling. 1. Introduction All Giant Outer planets have magnetic field B and corotating plasma, allowing nonconventional exploration. Electrodynamic tethers, which are thermodynamic (dissipative) in character, can 1. provide propellantless drag both for deorbiting spacecraft in Low Earth Orbit at end of mission and for planetary spacecraft capture and operation down the gravitational well, and 2. generate accompanying, useful electrical power, or store it to later invert tether current (Sanmartin et al., 1993; Sanmartin & Estes, 1999). At Jupiter, tethers could be effective because its field B is high (Sanmartin et al., 2008). Tethers would allow a variety of science applications (Sanchez-Torres & Sanmartin, 2011). The Saturn field is 20 times smaller, however, and tether operation involves field B twice, which makes that thermodynamic character manifest: 1. -
“Mining” Water Ice on Mars an Assessment of ISRU Options in Support of Future Human Missions
National Aeronautics and Space Administration “Mining” Water Ice on Mars An Assessment of ISRU Options in Support of Future Human Missions Stephen Hoffman, Alida Andrews, Kevin Watts July 2016 Agenda • Introduction • What kind of water ice are we talking about • Options for accessing the water ice • Drilling Options • “Mining” Options • EMC scenario and requirements • Recommendations and future work Acknowledgement • The authors of this report learned much during the process of researching the technologies and operations associated with drilling into icy deposits and extract water from those deposits. We would like to acknowledge the support and advice provided by the following individuals and their organizations: – Brian Glass, PhD, NASA Ames Research Center – Robert Haehnel, PhD, U.S. Army Corps of Engineers/Cold Regions Research and Engineering Laboratory – Patrick Haggerty, National Science Foundation/Geosciences/Polar Programs – Jennifer Mercer, PhD, National Science Foundation/Geosciences/Polar Programs – Frank Rack, PhD, University of Nebraska-Lincoln – Jason Weale, U.S. Army Corps of Engineers/Cold Regions Research and Engineering Laboratory Mining Water Ice on Mars INTRODUCTION Background • Addendum to M-WIP study, addressing one of the areas not fully covered in this report: accessing and mining water ice if it is present in certain glacier-like forms – The M-WIP report is available at http://mepag.nasa.gov/reports.cfm • The First Landing Site/Exploration Zone Workshop for Human Missions to Mars (October 2015) set the target -
The Criteria for the Choice of the Fluid for Ice Deep
r_ r: r] FGRffirereM&Hffi : I bv P. G. Ta lalayt'z and N. S. Gun destrup2 I St.Peters b urg Stote Mining Institute 21 I Line,2 St.Petersburg 199026, Russia 2[]niversi4, of Copenhagen, Deportntent of Geophysics JuliaT Maries Vej 30, DK-2100 Copenhagen O, Denmark i l K*t /;'/88//,}?4= t}=ii ri/ n H- ,i ii lj'j E\UE llUlrli , 9+ \5- \s;.( Copenhagen 1999 \ I CONTENTS Introduction …………………………………………………………………………… 3 1. Types of hole fluids for deep ice core drilling …………………………………… 5 Classification of ice drilling fluids Petroleum oil products Densifiers Alcohols, esters and other organic liquids Silicon oils 2. Density and fluid top ……………………………………………………………… 13 General considerations Fluid top Density profile of ice Approximate density profile of fluid Real density profile of fluid Density profile of two-compound fluid Hydrostatic pressure and density profile in GISP2 bore-hole at Summit, Greenland Pressure difference and choice of the fluid density Choice of the fluid density for 3000-m bore-hole at Central Greenland 3. Bore-hole closure rate …………………………………………………………….. 37 Bore-hole closure and drilling technology Ice creep Flow parameter A Enhancement coefficient Glen’s Law power n Glen’s Law and the rate of the bore-hole closure Prognosis of the bore-hole closure 4. Viscosity …………………………………………………………………………… 48 General considerations The rational values of average drill’s lowering/hoisting rate Fluid viscosity and free drill’s lowering rate Viscosity of drilling fluid versus temperature Viscosity of drilling fluid versus pressure Resume 5. Frost-resistance …………………………………………………………………... 64 6. Stability …………………………………………………………………………… 67 Stability of drilling fluids during storage and transportation Stability of drilling fluids in bore-hole 1 7. -
Ice Core Science
PAGES International Project Offi ce Sulgeneckstrasse 38 3007 Bern Switzerland Tel: +41 31 312 31 33 Fax: +41 31 312 31 68 [email protected] Text Editing: Leah Christen News Layout: Christoph Kull Hubertus Fischer, Christoph Kull and Circulation: 4000 Thorsten Kiefer, Editors VOL.14, N°1 – APRIL 2006 Ice Core Science Ice cores provide unique high-resolution records of past climate and atmospheric composition. Naturally, the study area of ice core science is biased towards the polar regions but ice cores can also be retrieved from high .pages-igbp.org altitude glaciers. On the satellite picture are those ice cores covered in this issue of PAGES News (Modifi ed image of “The Blue Marble” (http://earthobservatory.nasa.gov) provided by kk+w - digital cartography, Kiel, Germany; Photos by PNRA/EPICA, H. Oerter, V. Lipenkov, J. Freitag, Y. Fujii, P. Ginot) www Contents 2 Announcements - Editorial: The future of ice core research - Dating of ice cores - Inside PAGES - Coastal ice cores - Antarctica - New on the bookshelf - WAIS Divide ice core - Antarctica - Tales from the fi eld - ITASE project - Antarctica - In memory of Nick Shackleton - New Dome Fuji ice core - Antarctica - Vostok ice drilling project - Antarctica 6 Program News - EPICA ice cores - Antarctica - The IPICS Initiative - 425-year precipitation history from Italy - New sea-fl oor drilling equipment - Sea-level changes: Black and Caspian Seas - Relaunch of the PAGES Databoard - Quaternary climate change in Arabia 12 National Page 40 Workshop Reports - Chile - 2nd Southern Deserts Conference - Chile - Climate change and tree rings - Russia 13 Science Highlights - Global climate during MIS 11 - Greece - NGT and PARCA ice cores - Greenland - NorthGRIP ice core - Greenland 44 Last Page - Reconstructions from Alpine ice cores - Calendar - Tropical ice cores from the Andes - PAGES Guest Scientist Program ISSN 1563–0803 The PAGES International Project Offi ce and its publications are supported by the Swiss and US National Science Foundations and NOAA. -
Monday, November 13, 2017 WHAT DOES IT MEAN to BE HABITABLE? 8:15 A.M. MHRGC Salons ABCD 8:15 A.M. Jang-Condell H. * Welcome C
Monday, November 13, 2017 WHAT DOES IT MEAN TO BE HABITABLE? 8:15 a.m. MHRGC Salons ABCD 8:15 a.m. Jang-Condell H. * Welcome Chair: Stephen Kane 8:30 a.m. Forget F. * Turbet M. Selsis F. Leconte J. Definition and Characterization of the Habitable Zone [#4057] We review the concept of habitable zone (HZ), why it is useful, and how to characterize it. The HZ could be nicknamed the “Hunting Zone” because its primary objective is now to help astronomers plan observations. This has interesting consequences. 9:00 a.m. Rushby A. J. Johnson M. Mills B. J. W. Watson A. J. Claire M. W. Long Term Planetary Habitability and the Carbonate-Silicate Cycle [#4026] We develop a coupled carbonate-silicate and stellar evolution model to investigate the effect of planet size on the operation of the long-term carbon cycle, and determine that larger planets are generally warmer for a given incident flux. 9:20 a.m. Dong C. F. * Huang Z. G. Jin M. Lingam M. Ma Y. J. Toth G. van der Holst B. Airapetian V. Cohen O. Gombosi T. Are “Habitable” Exoplanets Really Habitable? A Perspective from Atmospheric Loss [#4021] We will discuss the impact of exoplanetary space weather on the climate and habitability, which offers fresh insights concerning the habitability of exoplanets, especially those orbiting M-dwarfs, such as Proxima b and the TRAPPIST-1 system. 9:40 a.m. Fisher T. M. * Walker S. I. Desch S. J. Hartnett H. E. Glaser S. Limitations of Primary Productivity on “Aqua Planets:” Implications for Detectability [#4109] While ocean-covered planets have been considered a strong candidate for the search for life, the lack of surface weathering may lead to phosphorus scarcity and low primary productivity, making aqua planet biospheres difficult to detect. -
Stone Aerospace Saves 12 Weeks in Cabling Design by Implementing a Digital Design Process
SUCCESS STORY ® Zuken’s software solution for electrical wiring, control systems and fluid engineering. Stone Aerospace saves 12 weeks in cabling design by implementing a digital design process “We achieved substantial productivity gains because engineers had a very clear picture of what one another were doing, and because of the automated checks performed by the software.“ John Harman, Electrical Engineer, Stone Aerospace ZUKEN - The Partner for Success SUCCESS STORY Stone Aerospace saves 12 weeks in cabling design by implementing a digital design process Stone Aerospace faced the pressure of a tight schedule in designing Results a one-of-a-kind underwater autonomous vehicle (AUV) capable • Elimination of $20,000 in cable of traveling 15km under the Antarctic ice shelf. The AUV acts as a rework and expedited delivery costs testing ground to validate an aircraft-mounted radar system that • Design cycle reduction by 12 weeks will be used in a space mission. The time needed to design the wiring • Ability to view the electrical and harness for the AUV was reduced by around 12 weeks and $20,000 physical design of the entire craft in was saved by using E3.series to automate many aspects of the design a single hierarchical view process, while integrating the logical and physical design on a single • E ective design team collaboration platform. created common nomenclature improving quality and cutting errors The search for life in space aspects such as temperature, depth and water current velocities, and to identify • Automated checks ensured correct Scientists believe that underneath the microbiological communities. connector selections. icy surface of Europa, one of Jupiter’s moons, is a vast ocean thought to be the Cable design challenges most likely location for finding life in our solar system. -
Enceladus Explorer: Next Steps in the Development and Testing of a Steerable Subsurface Ice Probe for Autonomous Operation
Enceladus and the Icy Moons of Saturn (2016) 3031.pdf ENCELADUS EXPLORER: NEXT STEPS IN THE DEVELOPMENT AND TESTING OF A STEERABLE SUBSURFACE ICE PROBE FOR AUTONOMOUS OPERATION. B. Dachwald1, J. Kowalski2, F. Baader1, C. Espe1, M. Feldmann1, G. Francke1, E. Plescher1, 1Faculty of Aerospace Engineering, FH Aachen University of Applied Sciences, Hohenstaufenallee 6, 52064 Aa- chen, Germany, [email protected], 2Aachen Institute for Advanced Study in Computational Engineering Sci- ence, RWTH Aachen University, Germany Introduction: Direct access to subsurface liquid flexibly organized initiative with sub-projects focused material for in-situ analysis at Enceladus' South Polar on key research and development areas. The sub- Terrain is very difficult and requires advanced access project at FH Aachen is called EnEx-nExT (Environ- technology with a high level of cleanliness, robustness, mental Experimental Testing). Since the EnEx- and autonomy. A new technological approach has been IceMole was quite large (15 x 15 x 200 cm) and heavy developed as part of the collaborative research project / (60 kg), a much smaller (8 x 8 x 40 cm) and light- initiative “Enceladus Explorer” (EnEx) [1]. Within weight (< 5 kg) probe is currently developed within EnEx, the required technology for a potential Encela- EnEx-nExT. In the next two years, this smaller probe dus lander mission [2] is developed, evaluated, and will be tested in a vacuum chamber under simulated tested, with a strong focus on a steerable subsurface ice space conditions (pressure < 6 mbar, temperature probe. The EnEx probe shall autonomously navigate < 100 K) to prove the applicability of combined drill- through the ice and find a location where a liquid water ing and melting probes under more Enceladus-like sample can be taken and analyzed in situ. -
Development of Nereid-UI: a Remotely Operated Underwater Vehicle for Oceanographic Access Under Ice
Development of Nereid-UI: A Remotely Operated Underwater Vehicle for Oceanographic Access Under Ice Presented at the 9th Annual Polar Technology Conference, 2-4 April 2013 Louis L. Whitcomb1,2,Andrew D. Bowen1, Dana R. Yoerger1, Christopher German1, James C. Kinsey1, Larry Mayer1,3, Michael V. Jakuba1, Daniel Gomez-Ibanez1, Christopher L. Taylor1, Casey Machado1, Jonathan C. Howland1, Carl Kaiser1, Matthew Heintz1 1Department of Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution 2Department of Mechanical Engineering, Johns Hopkins University 3Center for Coastal and Ocean Mapping, University of New Hampshire Photo courtesy S. McPhail, NOC Woods Hole Oceanographic Institution World’s largest private ocean research institution ~900 Employees, 143 Scientific Staff $160M Annual Budget • Biology • Chemistry • Geology • Physical Oceanography • Engineering • Marine Policy Deep Ocean Oceanography: The D.S.V. Alvin 4500m Submersible Image Credit: Rod Catenach © WHOI Catenach Credit: Rod Image Crew: 3 = 1 pilot + 2 scientist Depth: 4500m (6,500m soon) Endurance: 6-10 Hours Speed: 1 m/s Mass: 7,000 Kg Length: 7.1m Power: 81 KWH Life Support: 72 Hours x 3 Persons Ph.D. Student James Kinsey Dives: >4,700 (since 1964) Passengers: >14,000 (since 1964) Jason II ROV Specifications: Size: 3.2 x 2.4 x 2.2 m Weight 3,300 kg Depth 6,500 m Power 40 kW (50 Hp) Payload: 120 Kg (1.5 Ton) First Dive: 2002 Dives: >600 Dive Time: >12,500 Hours* Bottom Time: >10,600 Hours* Longest Dive: 139 Hours* Deepest Dive: 6,502 m* Distance: >4,800 km* * As of Feb, 2012 Electric thrusters, twin hydraulic manipulator arms. -
The Antarctic Sun, November 19, 2006
November 19, 2006 Organisms abound below sea ice By Peter Rejcek Sun staff he occasional skua swooping around McMurdo Station scav- Tenging for food, or the odd seal lounging next to a crack in the sea ice, is generally the only reminder for many here that there is life in the Antarctic aside from human beings. SEE RELATED STORIES: But below the swath of seemingly The Antarctic The Sun impenetrable ice that separates the Foram superglue on page 11 station and the Royal Society Range, Room to breathe on page 12 about 65 kilometers away, a riot- ous and colorful marine community thrives in McMurdo Sound. See MCMURDO on page 9 Rob Robbins / Special to Crary Lab celebrates 15 years on Ice Quote of the Week By Steve Martaindale metal plaque was not. Now ence that wasn’t even on the “I’m so tired of Sun staff 15 years old, the Crary Lab, horizon when the 100-percent A plaque outside the Albert P. as it is more popularly known, design was approved.” looking at every- Crary Science and Engineering has proven to have the elas- Kottmeier, now director of one through trees.” Center at McMurdo Station tic qualities intended from its science support for Raytheon — Woman commenting on notes that the building was ded- inception. Polar Services Co., was among the number of fake plants icated on Nov. 4, 1991. That “The design of the Crary a group of scientists consulted in office spaces. was the original plan, but the Lab was very flexible to concerning requirements for a ever-unpredictable Antarctic accommodate the various dis- new lab.