
	Where results make sense

Topic: Filchner Ice Shelf

Related Topics

Ross Ice Shelf

shelf life

Filchner Ronne Ice Shelf

Sulphur shelf

ice shelf

Shelf computing

Queensbury and Shelf

Ward Hunt Ice Shelf

Outer Continental Shelf Lands

Shelf Bank

The Record Shelf

In the News (Mon 6 Jul 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Ice shelf - Biocrawler (Site not responding. Last check: 2007-11-03)
		An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface, typically in Antarctica or Greenland.
		The boundary between floating ice shelf and the grounded (resting on bedrock) ice that feeds it is called the grounding line.
		The primary mechanism of mass loss from ice shelves is iceberg calving, in which a chunk of ice breaks off from the seaward front of the shelf.
	www.biocrawler.com /encyclopedia/Ice_shelf (482 words)

	Filchner-Ronne Ice Shelf - Wikipedia, the free encyclopedia
		The Filchner-Ronne ice shelf is in Antarctica bordering the Weddell Sea.
		The Filchner ice shelf is nourished primarily by the Slessor Glacier, the Recovery Glacier, and the Support Force Glacier, all located east of Berkner Island.
		The Ronne ice shelf is the larger and western part of the Filchner-Ronne ice shelf.
	en.wikipedia.org /wiki/Filchner-Ronne_Ice_Shelf (396 words)

	Radar opens new window into the ice for Antarctic scientists
		As well as shedding new light on the makeup of the ice shelf, Dr Jenkins and his colleagues used the phase-sensitive radar to measure the rate at which the underside of the ice shelf is melting.
		Ice shelf — is the floating extension of the grounded ice sheet.
		It is composed of freshwater ice that originally fell as snow, either in situ or inland and brought to the ice shelf by glaciers.
	www.eurekalert.org /pub_releases/2006-10/bas-ron101606.php (904 words)

	CO2 Science
		Joughin, I. and Bamber, J.L. Thickening of the ice stream catchments feeding the Filchner-Ronne Ice Shelf, Antarctica.
		Among the many model-based predictions of the deleterious consequences of CO -induced global warming is the melting of significant portions of earth's polar ice caps, which could raise the level of the world's oceans and inundate low-lying coastal locations with seawater.
		It is clear from the results of this study that the Filchner-Ronne Ice Shelf is not rapidly, or even slowly, wasting away.
	www.co2science.org /scripts/CO2ScienceB2C/articles/V8/N49/C2.jsp (431 words)

	Klaus Grosfeld of Paleoceanographic Modeling Group, Department of Geosciences, University of Bremen (Site not responding. Last check: 2007-11-03)
		Ice shelves represent the main drainage basins of the Antarctic Ice Cap and are sensitive indicators for climate induced mass-balance changes of Antarctica.
		In addition, the central part of Filchner-Ronne Ice Shelf consists of meteoric and a layer of marine ice with thicknesses up to 400 m, which accumulates from the ocean underneath the ice shelf by crystallization processes.
		This layer contributes to the mass budget of the ice shelf and influences the temperature regime significantly.
	www.palmod.uni-bremen.de /~grosfeld/G93.html (494 words)

	Antarctic Explorers: Wilhelm Filchner
		Filchner's original plans were for one ship to enter the Weddell Sea while a second would enter the Ross Sea.
		Captain Vahsel sounded the alarm and shouted, "All the ice in the bay is moving and the stationhaus-berg has begun to rotate!" Tons of ice had broken loose from the edge of the ice shelf with new cracks and rifts opening in every direction Filchner looked.
		Filchner reasoned that the disaster occurred due to a spring tide, coupled with a sharp drop in barometric pressure.
	www.south-pole.com /p0000103.htm (1957 words)

	Filchner-Ronne Ice Shelf interferometry studies (Site not responding. Last check: 2007-11-03)
		Fifteen synthetic-aperture radar (SAR) images of the Ronne Ice Shelf (also referred to as the Filchner-Ronne Ice Shelf, or FRIS), Antarctica, obtained by the European Space Agency (ESA)'s Earth Remote Sensing satellites (ERS) 1 \and 2 are used to study ice-shelf dynamics near two ends of the iceberg-calving front.
		Many of the large rifts that appear to form the boundaries where tabular icebergs may eventually detach from the ice shelf are filled with a melange of sea ice, ice-shelf debris and wind-blown snow.
		The interferograms show that this melange tends to deform coherently in response to the ice shelf flow and has sufficient strength to trap large tabular ice-shelf fragments for several decades before the fragments eventually become icebergs.
	www-radar.jpl.nasa.gov /glacier/Antarctica/ronne.html (313 words)

	Greenpeace Antarctica Tour 1997
		Researchers point out that the calculated temperature threshold for ice shelf viability had not yet been reached over Larsen-A at the time of its collapse, implying that either the existing temperature maps of the area are inadequate or that the warming trend is stronger than anticipated.
		For instance, Doake and Vaughan [10] analysed the iceberg calving of the Wordie Ice Shelf and confirmed earlier results [11] that ice fracturing was enhanced by increased quantities of melt water, which in turn are a result of persistent warming in the region.
		Warming at the surface may change the temperature structure of the ice shelf by altering the balance of accumulation and melting so that cracks and crevasses are not healed over by the annual accumulation of snow and ice.
	archive.greenpeace.org /comms/climate/polartour/ptscience2.html (956 words)

	Publications since 1990 for Ice Sheet Dynamics
		Jenkins, A. Influence of Filchner-Ronne Ice Shelf on the Weddell Sea.
		Jenkins, A. The melting of continental ice in the ocean and its impact on surface and bottom waters.
		Modelling the effects of frazil ice crystals on the dynamics and thermodynamics of ice shelf water plumes.
	www.nerc-bas.ac.uk /icd/pub.isd.html (977 words)

	Filchner/Ronne Ice Shelf Velocities
		Ice front fluctuations in the eastern and southern Weddell Sea.
		Quantitative estimates of the mass flux and ice movement along the ice edges in the eastern and southern Weddell Sea.
		Strain and velocity dertermination on Ronne Ice Shelf.
	nsidc.org /data/velmap/fris/frisp/fris.html (683 words)

	Hartmut Hellmer's abstracts
		Where the shelf is shallow, 400 m deep, a closed circulation cell within the Ronne cavity acts like an ice pump with accumulation rates of marine ice at the ice shelf base up to 1.5 my-1.
		Where the shelf is deeper a flow from the Ronne into the Filchner cavity develops if the bottom salinity at the Ronne Ice Shelf edge exceeds a critical value of 34.67.
		Marine shelf ice which constitutes the basal portion of some ice shelves is considered to be the source of green icebergs.
	www.ldeo.columbia.edu /~hhellmer/html/abstract.html (941 words)

	Autosub Under Ice \| Field sites & seasons (Site not responding. Last check: 2007-11-03)
		A shallower sill, rising from 1000 to 400 metres deep, dominates the Ronne ice shelf seawards of the Doake Ice Rumples.
		Ice Shelf Water emerging from the cavity contributes to the formation of Weddell Sea Bottom Water and ultimately Antarctic Bottom Water.
		Anticyclonic circulation in the sub-ice shelf cavity, with melting west of the Korff ice rise and freezing east and north of the Henry ice rise, may also account for the pattern of marine ice accumulation beneath the central ice shelf area.
	www.soc.soton.ac.uk /aui/fris.html (444 words)

	SCAR » Report 13
		The overall theme of the meeting was, primarily, the coordination of ice radar sounding surveys of the grounding zone of the entire Antarctic Ice Sheet, and secondarily, the coordination of surface mass balance measurements and surface ice velocities.
		Establishing velocities of glaciers, ice streams, ice sheets, and ice shelves is essential to calculate the discharge of the mass balance equation.
		Velocities on the shelf near the DeVicq Glacier increase westward to near 0.5 km yr -1 and reach 0.6 km yr -1 at the glacier.
	www.scar.org /publications/reports/13/taskgroup3.html (7466 words)

	ScienceDaily: Radar Opens New Window Into The Ice For Antarctic Scientists
		Antarctic Ice Shelf Retreats Happened Before (February 28, 2005) -- The retreat of Antarctic ice shelves is not new according to research published this week (24 Feb) in the journal Geology by scientists from Universities of Durham, Edinburgh and British Antarctic...
		Ice shelf -- An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface, typically in Antarctica or Greenland.
		Larsen Ice Shelf -- The Larsen Ice Shelf (67Â°30â²S 062Â°30â²W) is a long, fringing ice shelf in the northwest part of the Weddell Sea, extending along the east coast of Antarctic Peninsula from Cape Longing to the...
	www.sciencedaily.com /releases/2006/10/061016105750.htm (1946 words)

	Re: Biosphere and Ice Shelf Discussion Area (Site not responding. Last check: 2007-11-03)
		Ice shelves are the large floating masses of ice surrounding the continent’s grounded ice sheets.
		Again in 199l, the Wordie Ice Shelf showed signs of rapid disintegration which suggested that recent warm temperature in the Antarctic may have been the cause.
		When the sea ice melts with the onset of summer, the algae, aptly called ice algae, escape into the water, where they are grazed by dense swarms of krill—a type of shrimplike crustacean.
	distance.una.edu /ess/_sphere_sp02/00000069.htm (714 words)

	ocean condition and processes beneath the ronne ice shelf
		Ice shelves exist where ice flows off mainland Antarctica into the sea and are floating expanses of ice that may have horizontal dimensions of several hundred kilometres and depths of over a kilometre.
		Frazil ice affects the net buoyancy of the ISW and, where the ISW slows, frazil may deposit onto the underside of the ice shelf to form marine ice.
		Due to their inaccessibility, the ocean cavities beneath ice shelves are some of the least explored areas of the planet.
	www.cpom.org /research/ronne.htm (614 words)

	03/25/00 -- Giant iceberg shakes loose off Antarctica
		The immense block of ice — dubbed B15 — is 300 kilometers (186 miles) long and 37 kilometers (23 miles) wide, and is almost the same size of the state of Connecticut.In the 23-year history of the U.S. National Ice Center's iceberg database, no iceberg has been bigger, said Selina Nauman, a NIC scientist.
		Glacial ice obeys the laws of gravity by flowing down the sides of the land mass and extending into the ocean, forming what are known as ice shelves.
		Icebergs like B15 occur when ice at the edge of an ice shelf finally succumbs to the forces of the sea, which include warmer temperatures, currents and tides.
	www.climateark.org /articles/2000/1st/giicesha.htm (975 words)

	How warming helps Antarctic ice - researcher Keith W. Nichols found evidence that global warming has thickened the ...
		This anomaly occurs because of sea ice formation near the front of the shelf in winter.
		The freezing process locks up freshwater in ice and leaves behind extra-salty water, which sinks to the bottom even though it is slightly warmer than the surrounding water.
		As long as the pattern of currents remains similar to today's, "the response of the ice shelf to a warming of the climate will be for it to thicken, rather than threatening its longevity," he says.
	www.findarticles.com /p/articles/mi_m1200/is_n9_v152/ai_19741193 (454 words)

	drm > research > journal articles
		Ice shelf flow at the boundary of Crary Ice Rise.
		Ice-shelf response to ice-stream discharge fluctuation: I. Unconfined ice tongues.
		An investigation of low-stress ice rheology on the Ward-Hunt Ice Shelf.
	geosci.uchicago.edu /~drm7/research/journal.html (1134 words)

	iceshelf (Site not responding. Last check: 2007-11-03)
		Ice shelves are marine based extensions of ice caps and sheets.
		The pulling force on the ice increases as the square of the floating ice thickness.
		The faster the ice shelf is moving, extensive crevassing will result.
	www.homepage.montana.edu /~geol445/hyperglac/morphology2/iceshelf.htm (125 words)

	Tides on Antarctic Ice Shelves (Site not responding. Last check: 2007-11-03)
		Even though the accuracy on a single measurement of ice shelf height is only about 50 cm, with enough measurements it is possible to obtain the tidal coefficients for most major tidal frequencies to about 3-5 cm accuracy.
		They demonstrated that tides can be measured quite well by recording the change in gravity as the ice shelf moves up and down with respect to the earth's center of gravity.
		A lot of the interest in ice shelf tides is from people who simply see tides as noise that must be removed to see the underlying climate-scale variations clearly.
	www.esr.org /antarctic/ice_shelf_tides.html (826 words)

	Remote Sensing Abstracts, Vol. 27, no 3 (Site not responding. Last check: 2007-11-03)
		Velocities of the Filchner Ice Shelf and its tributary glaciers are derived using a variation of satellite radar interferometry known as speckle tracking.
		Fluxes are estimated using the ice velocities together with ice thickness data derived from a hydrostatic equilibrium model.
		Assuming the upstream fluxes reflect the flow across the grounding lines, then the Recovery Glacier is the largest contributor to the ice shelf with 48% and the Slessor Glacier is the second largest with 33%.
	www.casi.ca /2001rsabs3.htm (1594 words)

	Tectonic Evolution of the Weddelll Sea & Gondwana Breakup
		Together with the crustal thickness of 27 km from refraction seismic studies and comparison with theoretical models, the thermal age is estimated to be between 165 and 230 Ma for the Ronne shelf.
		In ice-covered regions, gravity and magnetic imaging is the optimum approach to survey large areas and to resolve the geological structures beneath the ice.
		Studinger, M., and Miller H., Crustal structure of the Filchner-Ronne Shelf and Coats Land, Antarctica from gravity and magnetic data: implications for the breakup of Gondwana, J.
	www.ldeo.columbia.edu /~mstuding/weddell.html (940 words)

	INSTAAR Science Spotlights 1999 - John Behrendt
		Innocents on the Ice is based on the author's experience and writings as part of a U.S. Navy-supported scientific expedition to establish Ellsworth Station on the Filchner Ice Shelf.
		The tension was unrelieved by contact with the outside world, since there was no mail for the 9 civilians and 30 Navy men living beneath the snow and only occasional radio contact was made with families for a year.
		Along the hazardous 1300-mile oversnow traverse in two Sno-Cats, the field party measured ice thickness and snow accumulation as part of an international effort to determine the balance of the Antarctic ice sheet, and they also made the first geological observations of the spectacular Dufek Massif in the then unexplored Pensacola Mountains.
	instaar.colorado.edu /research/science_spotlights/behrendt_book.html (228 words)

	New Book by John C. Behrendt Released
		"Innocents on the Ice" is based on John's experience and writings as part of a U.S. Navy-supported scientific expedition to establish Ellsworth Station on the Filchner Ice Shelf.
		There was no mail for the nine civilians and 30 Navy men living beneath the snow, and only occasional radio contact was made with families for a year.
		As part of an international effort to determine the balance of the Antarctic ice sheet, the field party measured ice thickness and snow accumulation along the hazardous 1,300-mile oversnow traverse in two Sno-Cats.
	soundwaves.usgs.gov /1999/02/pubs.html (303 words)

	Melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica
		Our results suggest most grounding-line melt is refrozen, while the dominant Ice Shelf Water (ISW) source is melting near the ice shelf front, probably associated with tidal action.
		This suggests that changes in ice shelf extent can impact ISW production rates in the Weddell Sea.
		Citation: Joughin, I., and L. Padman (2003), Melting and freezing beneath Filchner-Ronne Ice Shelf, Antarctica, Geophys.
	www.agu.org /pubs/crossref/2003/2003GL016941.shtml (196 words)

	Environmental Engineering
		He was involved in the Filchner Ronne Ice Shelf Programme and in the assessment of the mass balance of the Filchner Ronne Ice Shelf, the second largest ice shelf in Antarctica.
		O) of the EPICA ice core from Dronning Maud Land” was finished in 2005.
		H) of near-surface firn of the Filchner-Ronne Ice Shelf, Antarctica.
	www.gsf.de /eus/staff/graf.html (638 words)

	David Holland - Publications
		Holland, D.M., S.S. Jacobs, and A. Jenkins, 2005: Numerical modeling of ocean and ice in the Amundsen Sea, Antarctica.
		Jenkins, A., and D.M. Holland, 2001: Oceanographic conditions beneath Ronne Ice Shelf: A comparison between model and field data.
		Jenkins, A., and D.M. Holland, 2000: New Results from the application of the ocean model MICOM to the Filchner-Ronne Ice Shelf.
	fish.cims.nyu.edu /publications/unrefereed.html (476 words)

	People - The Department of the Geophysical Sciences
		On the Calving of Icebergs from the Ross Ice Shelf.
		Observation of ocean tides below the Filchner-Ronne Ice Shelf, Antarctica, using SAR interferometry: Comparison with tide model predictions.
		MacAyeal, D.R. (1993) Binge/Purge oscillations of the Laurentide Ice Sheet as a cause of the North Atlantic's Heinrich events.
	geosci.uchicago.edu /people/faculty/macayeal_pub.shtml (491 words)

Try your search on: Qwika (all wikis)