Last edited by Misar
Saturday, August 8, 2020 | History

2 edition of Geodetic positions of borehole sites of the Greenland Ice Sheet Program found in the catalog.

Geodetic positions of borehole sites of the Greenland Ice Sheet Program

Steven J. Mock

Geodetic positions of borehole sites of the Greenland Ice Sheet Program

by Steven J. Mock

  • 399 Want to read
  • 23 Currently reading

Published by [Dept. of Defense], Dept. of the Army, Corps of Engineers, Cold Regions Research and Engineering Laboratory in Hanover, N.H .
Written in English

    Subjects:
  • Geodesy -- Greenland.,
  • Ice -- Greenland.

  • Edition Notes

    StatementSteven J. Mock.
    SeriesCRREL report ; 76-41, CRREL report -- 76-41.
    ContributionsCold Regions Research and Engineering Laboratory (U.S.)
    The Physical Object
    Paginationiii, 7 p. :
    ID Numbers
    Open LibraryOL17537133M

      Greenland and Antarctica are losing ice mass precipitously. All that melting ice is going into the oceans which, predictably, are rising, both because of the melt water, and because of the rising temperature of the oceans. The orientation of a structure mapped in a borehole, e.g. a fracture, can be calculated using four geometric parameters: the bearing and inclination of the borehole together with the two angles of the structure relative to the borehole, denoted α (dihedral angle to the borehole trajectory) and β (rotation angle around the borehole trajectory).

    The Imbie Team, () 'Mass balance of the Greenland Ice Sheet from to ', Nature., pp. Xie, Linjun and Cheshmehzangi, Ali and Tan-Mullins, May and Flynn, Andrew and Heath, Tim () 'Urban entrepreneurialism and sustainable development: a comparative analysis of Chinese eco-developments.', Journal of urban technology. Arctic Change Oral Presentation Abstracts 7 Labrador Sea and the intrusion of the warm and saline Atlantic water into Baffin Bay. The rapidly changing polar environment including melting sea ice in the Arctic, surface warming and more transport of warm water from the south and the Greenland ice sheet melt can influence not only circulation and.

    Comparison of ice-core nss sulfate records (two sites in Greenland and one in the North Pacific) with temperature change records for the regions including these core sites provides further confirmation that change in the concentration of anthropogenic sulfate has had a significant effect on regional temperature during at least the period. Antarctic Ice Sheet configuration during the Last Glacial Maximum, study its retreat history, and examine the interaction of individual paleo-ice streams and the beds on which they rested. These objectives will be met by collecting multi-beam, seismic data, deep-tow side-scan sonar data, piston and kasten cores. Bottom camera, sub-bottom.


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Geodetic positions of borehole sites of the Greenland Ice Sheet Program by Steven J. Mock Download PDF EPUB FB2

Geodetic positions of borehole sites of the Greenland Ice Sheet Program. Hanover, N.H.: U.S. Cold Regions Research and Engineering Laboratory, (OCoLC) Document Type: Book: All Authors / Contributors: Steven J Mock; Cold Regions Research and Engineering Laboratory (U.S.).

Summary. Greenland ice cores contain a broad spectrum of informations on past environmental conditions in the North Atlantic region. However, the ice flow pattern, which is particularly complicated in South Greenland, dictates correction of ice core data for thinning of annual layers since the time of formation, and/or for deviating conditions upstream from the drill by: 4.

Laurentide Ice Sheet basal temperatures during the last glacial cycle as inferred from borehole data Article (PDF Available) in Climate of the Past 12(1) January with 42 Reads. Response to comments on “An analysis of a staked dipole probe on a lossy earth plane using the finite-difference time-domain method” [and reply] Article Full-text available.

In the second mechanism for gravitational collapse, heads of concave ice streams retreat and drag the marine ice-shelf grounding lines with them (Hughes,Hughes, ).This seemed possible, based on the theory for cyclic surging mountain glaciers developed by Robin and Weertman (), applied to account for nearly flat sections, “pseudo ice shelves,” of West Cited by: These Proceedings include the written version of papers presented at the IAG International Symposium on "Gravity, Geoid and Earth Observation ".

The Symposium was held in Chania, Crete, Greece, June and organized by the Laboratory of Geodesy and Geomatics Engineering, Technical. The associated pattern of mass loss, which ranges up to 50 cm of water equivalent, is consistent with observed decreases in precipitation and streamflow.

We estimate the total deficit to be about Gt, equivalent to a 10 cm layer of water over the entire region, or the annual mass loss from the Greenland Ice Sheet. The Saksunarvatn Ash, first found in the Faroe Islands, is a tephra produced by the Grímsvötn volcanic system in Iceland.

Since its discovery in the Faroe Islands, dark tephra with a similar stratigraphic position has been described at numerous locations around the North-Atlantic region; including 46 sites in Iceland (soil and lake sediments), 37 marine sediment cores from the Author: Bergrún Arna Óladóttir, Bergrún Arna Óladóttir, Thor Thordarson, Áslaug Geirsdóttir, Guðrún Eva Jóha.

In an effort to broaden international funding of a year-round program at Summit, a German microwave radar study was added to the Swiss boundary layer meteorology program and the on-going U.S. study of atmosphere-ice transfer processes at the Environmental Observatory (site of the Greenland Ice Sheet Project-2 core).

2 New Research Opportunities in the Earth Sciences. T he vitality of the current Earth science research community is manifestly evident in the numerous strategic planning, Grand Challenges, and science vision documents that have been produced over the past decade (a list of key documents is presented in Appendix A).Any attempt at comprehensive assessment of new.

Greenland Ice Sheet GRIP Greenland Summit ice core GRIPS garnet-rutile-ilmenite-plagioclase-silica (geobarometer) groundmass groundwater [n., adj.] GRS Geodetic Reference System GS (1) Geochemical Society; (2) overshot for wireline coring [drilling] GS pulling tool device attached to the coring line that is used to engage and retrieve inner.

WaterWired All things freshwater: news, analysis, humor, reviews, and commentary from Michael E. 'Aquadoc' Campana, hydrogeologist, hydrophilanthropist, Professor of Hydrogeology and Water Resources Management in the Geography Program of the College of Earth, Ocean, and Atmospheric Sciences (CEOAS) at Oregon State University and Emeritus Professor of.

We present temperature data from a m borehole at the West Antarctic Ice Sheet (WAIS) Divide. Results show that WAIS Divide was colder than the last ‐year average from to C.E. The temperature in the time period – C.E. was on average ± °C colder than the last ‐year average. level and ice sheet variations, would not be possible without it (see Chapter 5).

The following three sections give an overview of the current status of the global geodetic observing system relevant to the three pillars. Many (but not all) items or activities, which will be mentioned in these section below, are coordinated by enti-File Size: 7MB.

Analyzing data from our optical dust logger, we find that volcanic ash layers from the Siple Dome (Antarctica) borehole are simultaneous (with >99% rejection of the null hypothesis) with the onset of millennium-timescale cooling recorded at Greenland Ice Sheet Project 2 (GISP2; Greenland).

Disease Control – Combating the spread of pests through by identifying critical intervention areas and efficient targeting control interventions.

Swiss Alps Farming – Cultivating south-facing slopes in the Swiss Alps using aspect data because it shelters from cold and dry winds which is critical to successful crop growth. 3D Scanners for Biomass – Measuring with laser.

The freedom to invent new form was thus predicated on a false sense of security.�4 Whether by design or un-design, the different positions offered in this book.

The approach is to conduct field studies at sites where shallow cores and meteorological data are being obtained on the Greenland Ice Sheet to determine the spatial and temporal extent for key parameters, and boundary conditions needed to model the conduction and advection of heat, mass and chemical species within the firn.

• Acknowledgments • The Manual of Federal Geographic Data Products was published by the Federal Geo- graphic Data Committee (FGDC). The committee, which was established by the Office of Management and Budget, undertook the Manual as part of its responsibility to promote the coordinated development, use, sharing, and dissemination of surveying, mapping, and.

This is a list of ice cores drilled for scientific purposes. Note that many of these locations are on moving ice sheets, and the latitude and longitude given is as of the date of drilling.

Africa. Core Institution or project Coords Altitude (metres) Drill dates Depth (metres) Sources Lewis Glacier 1. A21C Abstract Title: Continuity of MODIS and VIIRS Snow-Cover Maps during Snowmelt in the Catskill Mountains in New York, C51B Abstract Title: Longitudinal Inter-Comparison of Modeled and Measured West Greenland Ice Sheet Meltwater Runoff Losses (), GC53F Abstract Title: Spatial and Temporal Variations of Surface.According to the National Bureau of Statistics of China, the households for the Long Form survey were selected by a random sampling program.

The data included in this product are from % Short Form survey.(4) Results in this publication are based on the processing of data directly from enumeration without any adjustment.Sample the vegetation in each layer or stratum (i.e., tree, sapling, shrub, herb, woody vine, and bryo- phyte) within the plot using the following proce- dures for each vegetative stratum and enter data on appropriate data sheet (see Appendix B for exam- ples of data sheet): 1) Herb stratum A) Sample this stratum using corresponding approach.