Results 181 to 190 of about 13,001 (233)

Chemistry of aerosols over Chukchi Sea and Bering Sea

Chinese Journal of Geochemistry, 2004
The contents of elements in aerosols sampled during the First Chinese Arctic Research Expedition (CHINARE-1) show great differences from one element to another. Na, K, Ca, Mg, A1, F, and C1 are the major components in the aerosols, whose contents are larger than 30 ng/m3. The chemical elements whose contents vary between 0.1–30 ng/m3 are Br, Sr, Cr, Ni,
Zhu Laimin, Chen Liqi, Yang Xuling, Du Junmin, Zhang Yuanhui   +4 more
openaire   +1 more source

Soundscape of the North-Eastern Chukchi Sea

The Journal of the Acoustical Society of America, 2012
The Chukchi Sea is a dynamic environment that cycles each year from open seas in summer to 100% ice cover in winter. The ice and sea conditions lead to a highly variable acoustic background. In summer the soundscape’s backdrop are wind and wave sounds typical of shallow seas.
Bruce Martin, Julien Delarue, David Hannay   +2 more
openaire   +1 more source

Fission Product Concentration in the Chukchi Sea

ARCTIC, 1964
Reports on concentrations of strontium-90, cerium-144, and promethium-147 in water samples collected 1959-1962, especially as indicating mass transport of ocean water. The 1959 Sr-90 fallout values were less than those reported from the northwestern Pacific and similar to values for the North Atlantic and mainland Alaska; but the 1960-62 values ...
Vaughan T. Bowen, Thomas T. Sugihara
openaire   +1 more source

Summertime circulation in the eastern Chukchi Sea

Deep Sea Research Part II: Topical Studies in Oceanography, 2015
Abstract The transport of Pacific-origin water across the eastern Chukchi Sea during summer is studied using shipboard hydrographic and Acoustic Doppler Current Profiler data from multiple surveys. The study identifies two major transport pathways in this region.
Donglai Gong, Robert S. Pickart
openaire   +1 more source

A Coastal Jet in the Chukchi Sea

ARCTIC, 1980
Data collected in the nearshore region between Point Lay and Ice Cape, Alaska, support the thesis that a well-developed coastal jet is present during the summer. The temporal variability of the current is as predicted by theory. The physical characteristics of the region suggest a strong signal-to-noise ratio for the baroclinic coastal jet.
WM. J. Wiseman, Jr., L.J. Rouse, Jr.
openaire   +1 more source

Chukchi Sea Shelf

1979
The Alaskan Chukchi Sea Shelf lies between 65°40′ and 73°00′N and 156°00′ and 171°00′W and covers an area of 580,000 km2 (Fig. 11-1). To the south the Chukchi Shelf is separated from the Bering Sea by a narrow constriction, the Bering Strait, and in the north it is bordered by an abrupt escarpment, the Beaufort Scarp, that descends to the floor of the ...
openaire   +1 more source

Phytoplankton blooms beneath the sea ice in the Chukchi sea

Deep Sea Research Part II: Topical Studies in Oceanography, 2014
In the Arctic Ocean, phytoplankton blooms on continental shelves are often limited by light availability, and are therefore thought to be restricted to waters free of sea ice. During July 2011 in the Chukchi Sea, a large phytoplankton bloom was observed beneath fully consolidated pack ice and extended from the ice edge to 4100 km into the pack.
Arrigo, Kevin R., Perovich, Donald K., Pickart, Robert S., Brown, Zachary W., Dijken, Gert L., Lowry, Kate E., Mills, Matthew M., Palmer, Molly A., Balch, William M., Bates, Nicholas R., Benitez-Nelson, Claudia R., Brownlee, Emily, Frey, Karen E., Laney, Samuel R., Mathis, Jeremy, Matsuoka, Atsushi, Mitchell, B. Greg, Moore, G. W. K., Reynolds, Rick A., Sosik, Heidi M., Swift, James H.   +20 more
openaire   +3 more sources

Chukchi Sea Continental Shelf Sedimentation: ABSTRACT

AAPG Bulletin, 1970
The topography of the Chukchi Sea continental shelf south of Herald Shoal is and has been dominated since at least Wisconsin time by Hope Valley (which trends northwest through the central part of the area) and by structural and sedimentary spit-like features trending offshore from Point Hope and Cape Prince of Wales.
openaire   +1 more source

Rapid sea-level rise and Holocene climate in the Chukchi Sea

Geology, 2006
Three new sediment cores from the Chukchi Sea preserve a record of local paleoenvironment, sedimentation, and flooding of the Chukchi Shelf (50 m) by glacial-eustatic sea-level rise. Radiocarbon dates on foraminifera provide the first marine evidence that the sea invaded Hope Valley (southern Chukchi Sea, 53 m) as early as 12 ka.
Keigwin, Lloyd D, Donnelly, Jeffre P, Cook, Mea S, Driscoll, Neal W, Brigham_Grette, Julie   +4 more
openaire   +1 more source

Holocene Oceanography of Chukchi Sea: ABSTRACT

AAPG Bulletin, 1969
Piston cores from the southeastern Chukchi Sea have permitted differentiation of modern from Holocene sediments deposited when sea level stood about 20 m lower. Because microfossil distributions in modern sediments are associated closely with ice-free oceanographic conditions, the following trends appear to be related to Holocene oceanographic ...
openaire   +1 more source