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Topic: Nares Strait


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In the News (Thu 16 Feb 12)

  
  IPY: International Polar Year
Therefore, the Nares Strait is key to understanding the pre-drift position of Greenland and consequently important in plate reconstructions of the North Atlantic and the Arctic ocean basins.
Additionally, the opening of the Nares Strait as a gateway for the Arctic seawater is of special importance for oceanographic processes, and might have effected the Labrador currents and the climate in eastern Canada.
The discussion on the origin of Nares Strait revolves around three hypotheses: 1) the strait is a major strike slip fault; 2) plate motion has been taken up in a broad zone of deformation; and 3) the strait is not a tectonic boundary.
www.ipy.org /development/eoi/details.php?id=174   (907 words)

  
 HMS Challenger   (Site not responding. Last check: 2007-10-07)
Captain George Nares received an official reprimand from the Admiralty, but was, apparently, the object of great admiration for his clever actions, and was questioned at length about how the feat was accomplished.
Captain Nares commanded for most of Challenger's historic journey, but because of his previous Arctic, Antarctic, and surveying experience and good service, he was recalled in 1874 to take command of the Alert and the Discovery in the 1875-76 British Arctic Expedition.
I don't think Captain Nares is quite strong enough for such a voyage, he suffered from "Rheumatics" on the Antarctic trip, and he is rather a timid man I think--not enterprise enough for such a command.
aquarium.ucsd.edu /challenger/people1.cfm   (769 words)

  
 Seismic Arctic Earthquakes G.P. Avetisov.   (Site not responding. Last check: 2007-10-07)
The conclusion regarding breaks in continental crust under the Nares Strait was drawn in (Wetmiller and Forsyth,1982) based on the study of Lg waves which are known not to propagate in the areas with the oceanic type of the crust.
The second of the aforesaid bottle-necks in mobilists position also highlighted by the problem of the Nares Strait implies a blind, unconditional pursuance to the principle of "absolute plate rigidity" and "persistence" of interplate boundaries which are virtually needed and sufficient but on a global level for illustration of basic terms of plate tectonics.
Therefore, the contemporary environment of the Nares Strait area is closely related to the history of its previous evolution, while the strait itself is an ancient fault structure which had been reactivated from time to time.
www.ngdc.noaa.gov /mgg/avetisov/CHAP5.htm   (13481 words)

  
 Nares Strait - Wikipedia, the free encyclopedia
Nares Strait (Danish: Nares Strædet; 80°0′N 70°0′W) is a waterway lying between Ellesmere Island (the most northerly part of Nunavut, Canada) and Greenland.
From south to north, the strait consists of Smith Sound, Kane Basin, Kennedy Channel, Hall Basin and Robeson Channel.
Hans Island, a tiny island lying within the strait, is claimed by both Denmark (on behalf of Greenland) and Canada.
en.wikipedia.org /wiki/Nares_Strait   (187 words)

  
 Americas   (Site not responding. Last check: 2007-10-07)
Canada is bounded on the N by the Arctic Ocean, on the E by Kennedy Channel, Nares Strait, Baffin Bay, Davis Strait, and the Atlantic Ocean, on the S by the United States, and on the W by the Pacific Ocean and the US state of Alaska.
At the far SE, at the end of the Strait of Magellan (Estrecho de Magallanes), it has an opening to the Atlantic Ocean.
It is separated from Florida by the Straits of Florida, from the Bahamas and Jamaica by various channels, from Haiti by the Windward Passage, and from Mexico by the Yucatán Channel and the Gulf of Mexico.
www.nationsencyclopedia.com /Americas/index.html   (3640 words)

  
 The Nares Connection - Naval Museum of Manitoba
Hilary Nares was born and raised in Winnipeg.
Hilary Nares’ father was Llewellyn Arthur Nares, who was the second son of The Rev Owen Alexander Nares, of Haverford West in Pembrokeshire, England.
Peter Nares, the younger of the two brothers, recalls that his father would bring him down to the division when he was younger.
www.naval-museum.mb.ca /people/n/nares.htm   (1531 words)

  
 OSU Nares Strait Meteorological Modeling   (Site not responding. Last check: 2007-10-07)
Nares Strait is a narrow passage between northern Ellesmere Island and Greenland, with orographic features reaching 500-2000 m on both sides, which tend to channel the surface winds along the strait.
Thus, in order to understand the variability and forcing of freshwater fluxes through Nares Strait, it is important to develop quantitative estimates of local surface winds.
The field program for the Nares Strait component of CATS began with hydrographic surveys and mooring deployments in July-August 2003, and will continue through summer 2007.
www-hce.coas.oregonstate.edu /~cmet/nares   (150 words)

  
 Variability of Nares Strait ice flux
Six years (1996–2002) of Arctic Ocean ice flux into the Nares Strait are estimated using RADARSAT ice motion.
This represents a first consistent multi-year record of Nares Strait outflow for examination of seasonal and interannual variability.
South of the gate, the MY ice coverage is highly variable and the strait may be filled with multiyear or seasonal ice.
www.agu.org /pubs/crossref/2005/2005GL024768.shtml   (262 words)

  
 ABSTRACT: Late glacial-Holocene records of climate change in Nares Strait: sedimentological and palaeoceanographic ...   (Site not responding. Last check: 2007-10-07)
Previous paleoceanographic models of Baffin Bay show continental ice filled Nares Strait during the LGM, but there were no marine geology records for the northern Basin.
During the Nares 2001 Expedition, we cored thick postglacial sediments from southern (Jones Sound), central (Richardson Fiord), and northern (Hall Basin) basins.
The thermocline is at 50 m, SST is —1.4°C, and bottom water is warmer (-0.4 to 0 °C) than southern Nares Strait.
cgrg.geog.uvic.ca /abstracts/MudieLatePrevious.html   (483 words)

  
 JP1.2 Meteorological conditions in Nares Strait and Smith Sound derived from a regional mesoscale model (2005 - 8Polar)   (Site not responding. Last check: 2007-10-07)
As part of an observational program to estimate freshwater fluxes through the Canadian Archipelago, a multiply-nested mesoscale model is used to estimate wind stress and near surface winds in the Nares Strait and Smith Sound channels west of Greenland.
Daily forecast fields during August 2003 through July 2004 are used to estimate the monthly mean fields in the Strait and to examine the characteristics and evolution of specific events.
Winds within Nares Strait are topographically controlled and largely channeled through the Strait.
ams.confex.com /ams/Annual2005/techprogram/paper_87281.htm   (186 words)

  
 Sir George Strong Nares 1831
He was the third son of William Henry Nares RN, educated at the Royal Naval School, New Cross, and joined the Royal Navy in 1845.
Interestingly, he took his nine year old son, William Grant Nares, with him on this voyage, accompanied by a tutor, Adam Ebbels, (who died early in the voyage and was buried in Bermuda).
There is a Nares Cape on Ellesmere Island and I also recently discovered that Nares Mountain and Nares lake, in Yukon, were named after him in 1883, by Lt F Schwatka of the US Army.
www.nares.net /george_strong_nares_1831.htm   (1313 words)

  
 ABSTRACT: Unblocking of the Nares Strait by Greenland and Ellesmere ice-sheet retreat 10,000 years ago .   (Site not responding. Last check: 2007-10-07)
ABSTRACT: Unblocking of the Nares Strait by Greenland and Ellesmere ice-sheet retreat 10,000 years ago.
Geological arguments have been made for Greenland and Ellesmere Island ice sheets that coalesced to block the Nares Strait and for restricted ice sheets on the two islands leaving the strait open, as it is today.
The strait was filled with ice during the last glaciation, blocking this connection between the Arctic and Atlantic oceans, and supporting the model of extensive and long-lasting ice on land and sea in this regions.
cgrg.geog.uvic.ca /abstracts/ZredaUnblockingThe1999.html   (271 words)

  
 CRREL Alert - Full Record Display   (Site not responding. Last check: 2007-10-07)
Data was taken as early as 1918; knowledge on the dependability of transport estimates based on that data is significant for the study of the region's climate and its effect on convection in the nearby Labrador Sea.
Geostrophic estimates of flow from CTD (Conductivity-Temperature- Density) data are compared with ADCP data from Nares Strait and northern Baffin Bay to find that the barotropic component is too strong for the dynamic method.
The important features of mean flow through the region-a cyclonic circulation in northern Baffin Bay and a barotropic, southward flow through Nares Strait-are confirmed in the hydrographic and velocity data.
usgspubs.georef.org /C_C_N320.htm   (316 words)

  
 On top of the world
"The Nares Strait is slightly less in width than the distance from Cape Henlopen, Del., to Cape May, N.J., and yet it represents a major pathway for Arctic water to reach the Atlantic Ocean," Münchow says.
The data already have answered one question that previously mystified scientists, how salt water from deep in the Arctic Ocean can cross the Nares Strait, which is only 200 meters (approximately 650 feet) deep, and then plunge to a depth of 2,500 meters (1.5 miles) in Baffin Bay, located south of the strait.
Münchow will return to the Nares Strait in spring 2005 with a small group of scientists to recover the instruments that were deployed.
www.udel.edu /PR/Messenger/03/3/MSontop.html   (1053 words)

  
 Hans Island: Geology
For the past twenty years, the Nares Strait (the body of water surrounding Hans) has been the subject of scientific debate, challenging one of geology’s most universally-accepted theories: that of plate tectonics.
Alfred Wegener, the father of plate tectonics, believed that the world’s continents were once part of the same giant landmass, later breaking up and drifting into their present-day positions.
But for the time being, Harrison says the Nares Strait region will continue to be a geological grey area, in addition to a political one.
www.cangeo.ca /hansIsland/geology.asp   (981 words)

  
 Arctic/Subarctic Ocean Fluxes, West
The amount and timing of these flows affects North Atlantic waters and global ocean circulation, which is influenced by temperature and salinity.
The head of Nares Strait sits at the confluence of major water mass boundaries within the Arctic that have recently been observed to shift, possibly in response to changed atmospheric pressure patterns.
To study conditions that may have occurred over several decades, researchers will be collecting bivalves and water samples along the Canadian and Greenland sides of the Nares Strait.
asofw.apl.washington.edu /media/media-falkner-release.html   (434 words)

  
 George Nares
Admiral Sir George Strong Nares, KCB, RN (April 24, 1831 – January 15, 1915) was a British naval officer and Arctic explorer.
On this expedition, Nares became the first explorer to take his ships all the way north through the channel between Greenland and Ellesmere Island — now named Nares Strait in his honor — to the Lincoln Sea.
A sledging party under Albert Hastings Markham set a new record farthest north of 83° 20', but overall the expedition was a near-disaster.
www.parsnava.com /biography/sdmc_George_Nares   (313 words)

  
 EO News: Marine Scientists Now Cruising into Icy Arctic to Research Major Process Affecting Global Climate - July 21, ...   (Site not responding. Last check: 2007-10-07)
The scientists will be using tools ranging from underwater current profilers to satellite sensors to determine the volume and timing of freshwater flows through Nares Strait, a narrow channel between northern Greenland and Canada's Ellesmere Island.
Funded by a $2 million grant from NSF's Office of Polar Programs, UD's primary contribution to the research effort will be to install and operate an ocean observing system in Nares Strait.
On the first expedition, which sets sail from St. John's, Newfoundland, on July 21 and concludes August 16 in Thule, Greenland, the UD team will be setting up oceanographic equipment moorings at 26 locations along the bottom of the strait to measure currents, temperature, and salinity.
earthobservatory.nasa.gov /Newsroom/MediaAlerts/2003/2003072115069.html   (445 words)

  
 Evidence for atmospheric control of sea-ice motion through Nares Strait
Satellite observations of ice motion are combined with model estimates of low-level winds and surface wind stress to provide evidence for atmospheric control of sea-ice motion through Nares Strait, between Ellesmere Island and Greenland, during two periods in 2004.
The results suggest that ice flux through the strait, and its shutdown through the formation of a landfast ice mass in the strait, can be controlled by wind stress and atmospheric cooling.
Analysis of the model results during these two periods also suggest that the intense, low-level, along-strait winds are strongly ageostrophic, and may be usefully estimated from pressure differences along the Strait.
www.agu.org /pubs/crossref/2006/2005GL025016.shtml   (255 words)

  
 SEARCH : Study of Environmental Arctic Change
In 1853, Elisha Kane reported on a generally southward drift of ice from the Arctic Ocean into Baffin Bay in what would later be named Nares Strait.
Little did he know that the southward transport of fresh water between Greenland and Ellesmere Island impacts ocean circulation and climate over the North-Atlantic at decadal, centennial, and longer time scales.
Here I present preliminary transport estimates of the oceanic flow through Nares Strait.
siempre.arcus.org /4DACTION/wi_pos_displayAbstract/7/960   (307 words)

  
 Canadian Archipelago Throughflow Study
John's, Newfoundland on July-20, 2003 for the first expedition of this project.
hydrographic surveys of northern Baffin Bay and Nares Strait,
Most of the objectives were met (see cruise report 8-MB.pdf) due to the hard work of both Coast Guard crew led by CAPT. Oliver and the science crew led by Dr.
newark.cms.udel.edu /~cats/healy_2003/expedition/index.html   (107 words)

  
 Paroscientific, Inc. -CANADIAN ARCHIPELAGO THROUGHFLOW STUDY
Paroscientific transducers were chosen for this study because of their reputation for accuracy and reliability.
The 2003 expedition to Nares Strait between northern Greenland and Ellesmere Islands contributes to the first-ever, simultaneous tracking of the major freshwater flux into the North-Atlantic which constitutes a key process that impacts the thermohaline ocean circulation and thus the global climate.
The research program is important because the discharge of fresh water from the Arctic into the North Atlantic is one crucial factor that controls global climate.
www.paroscientific.com /thruflowstudy.htm   (348 words)

  
 CBC News Indepth: It's A Fine Line
Canada and Denmark agreed to create a border through Nares Strait, halfway between Greenland, a semi-autonomous Danish territory, and Canada's Ellesmere Island.
The Dixon Entrance is a strait between B.C. and Alaska that’s about 80 kilometres long and wide.
It lies between the Clarence Strait in Alaska to the north, and the Hecate Strait into the Queen Charlotte Islands in B.C. to the south.
www.cbc.ca /news/background/boundary_disputes/index.html   (978 words)

  
 [No title]
The Arctic Ocean plays a pivotal role in the global hydrologic cycle by returning freshwater, in the form of freshened seawater and ice, to the North Atlantic at Fram Strait and through passages of the Canadian Archipelago.
Nares Strait constitutes a crucial location to monitor change as its location at the confluence of major Arctic water mass boundaries.
Outreach to the secondary education and general public levels via teacher participation in cruises, media and internet, interactions with local communities, undergraduate, graduate and technician training, and communication to the broader scientific community are all integral to our research plan.
arcticchamp.sr.unh.edu /abstracts/falkner.shtml   (614 words)

  
 Arctic Postal History 1992-93
The icebreaker KHLEBNIKOF was trapped by the ice at Nares Strait.
A canadian vessel was waiting to escort it from the other side of the strait.
The icebreaker YAMAL was called to assist it and was able to open a route for their escape.
www.south-pole.com /aspp040.htm   (243 words)

  
 Fission track thermogeochronology in the lands surrounding the Nares Strait, Canadian Arctic Archipelago and Greenland: ...   (Site not responding. Last check: 2007-10-07)
Fission track thermogeochronology in the lands surrounding the Nares Strait, Canadian Arctic Archipelago and Greenland: A Field Report.
The timing of uplift and exhumation of the lands bordering the Nares Strait are being studied using the apatite fission track (AFT) dating technique.
Depending on our expected results, and based on our previous AFT work in Ellesmere Island, we may recommend that future hydrocarbon exploration in northeastern Ellesmere Island should focus on sub-thrust plays to test potential structural traps at depth.
earthsciences.dal.ca /people/zentilli/zenabs17.htm   (296 words)

  
 SEARCH : Study of Environmental Arctic Change
Collaborative Research: Variability and Forcing of Fluxes through Nares Strait and Jones Sound: A Freshwater Emphasis
The following are components of the field research plan: 1) Mooring arrays at Nares Strait and Jones Sound.
The array will be deployed across the Kennedy Channel and will resolve the spatial and temporal scales required to develop accurate estimate of fluxes, errors and dynamical responses to remote and local forcing.
www.arcus.org /search/searchprojects/abstracts/falknerdetails.php   (271 words)

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