Acoustic profiles of sediment in a melt-water lake adjacent to the Bering Glacier, Alaska; RV Karluk cruise K2-91-YB, July 1-7, 1991

1993 ◽  
Author(s):  
P.R. Carlson ◽  
A.R. Tagg ◽  
B.F. Molnia
Keyword(s):  
Water Lake ◽  
Bering Glacier ◽  
Melt Water

scholarly journals Melt water input from the Bering Glacier watershed into the Gulf of Alaska

2014 ◽  
Vol 41 (3) ◽  
pp. 886-890
Author(s):  
Edward G. Josberger ◽  
Robert A. Shuchman ◽  
Liza K. Jenkins ◽  
K. Arthur Endsley
Keyword(s):  
Gulf Of Alaska ◽  
Bering Glacier ◽  
Melt Water

Drinking water quality and protection of resources

2010 ◽  
Vol 1 (1-2) ◽  
pp. 51-54
Author(s):  
J. Fettig
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Resources ◽  
River Water ◽  
Spring Water ◽  
Public Water Supply ◽  
Legal Requirements ◽  
Reservoir Water ◽  
Water Lake ◽  
Treatment Step

Abstract The structure of public water supply in Germany and the water resources used are briefly described. An overview over the legal requirements for drinking water is given, and the sources for contaminants are outlined. Then the multiple-barrier approach is discussed with respect to the resources groundwater and spring water, lake and reservoir water, and river water. Examples for treatment schemes are given and the principle of subsurface transport of river water as a first treatment step is described.

Marine record of surge-induced outburst floods from the Bering Glacier, Alaska

Geology ◽  
1999 ◽  
Vol 27 (9) ◽  
pp. 847 ◽  
Author(s):  
John M. Jaeger ◽  
Charles A. Nittrouer
Keyword(s):  
Outburst Floods ◽  
Bering Glacier

scholarly journals Lacuna band (surface depressions) occurrence and conditions of formation, Bering Glacier, Alaska

2015 ◽  
Vol 61 (226) ◽  
pp. 280-284 ◽  
Author(s):  
P. Jay Fleisher
Keyword(s):  
Water Movement ◽  
Ice Crystal ◽  
Eastern Margin ◽  
Bering Glacier

AbstractBering Glacier lacunas are steep-sided flat-floored depressions ranging from 40 to 60 m wide, 80 to 120 m long and 35 to 50 m deep. They are confined within a band of debris-free ice (1.5 km wide, 5 km long) parallel to the eastern margin of the Bering piedmont lobe. After the 1993–95 surge displaced the lacuna band several kilometers onto the foreland, a new band of lacunas began to form 5–6 years later in the same location as occupied by the displaced band. Conditions essential to lacuna formation were initiated during the surge, as overriding ice was thrust into position across the trend of a subglacial trough, leading to stagnation deep within the trough. It is proposed that stagnation combined with englacial water movement altered ice crystal fabric and resistance to ablation. Exposure of this ice through normal ablation led to differential ablation and the formation of lacunas.

A Holocene dinocyst record of a two-step transformation of the Neoeuxinian brackish water lake into the Black Sea

2009 ◽  
Vol 197 (1-2) ◽  
pp. 72-86 ◽  
Author(s):  
Fabienne Marret ◽  
Peta Mudie ◽  
Ali Aksu ◽  
Richard N. Hiscott
Keyword(s):  
Black Sea ◽  
Brackish Water ◽  
The Black Sea ◽  
Water Lake ◽  
Brackish Water Lake

Contrasting Trophic Level Interactions in Lake St. George and Haynes Lake (Ontario, Canada)

1991 ◽  
Vol 48 (3) ◽  
pp. 356-363 ◽  
Author(s):  
Nathalie Lafontaine ◽  
Donald J. McQueen
Keyword(s):  
Chlorophyll A ◽  
Trophic Level ◽  
Fish Population ◽  
Pelagic Fish ◽  
Strongly Correlated ◽  
Total Zooplankton ◽  
Clear Water ◽  
Southern Ontario ◽  
Water Lake ◽  
Pelagic Communities

Two small, adjacent kettle lakes in southern Ontario were sampled during spring and summer 1987. The data comprised weekly samples of zooplankton and water chemistry, monthly diel assessments of the densities of pelagic fish and zooplankton found at 1-m depth intervals in the water column, and an annual mark and recapture assessment of the entire fish population. The two lakes had very different community structures. Haynes Lake was characterized by high piscivore numbers, few planktivores, a relatively large assemblage of large bodied zooplankton, low chlorophyll a concentrations, and clear water. Lake St. George had a lower piscivore to planktivore ratio, smaller zooplankton, more chlorophyll a, and murkier water. Comparisons of trophic level biomasses for the two lakes suggested that in both communities, the relationships between piscivores and planktivores and between planktivores and zooplankton were strongly correlated with predator abundances. In the more oligotrophy community (Haynes Lake) this influence extended weakly to the phytoplankton, but in the more eutrophic system, little of the variability in chlorophyll a with respect to total phosphorus could be explained by total zooplankton (or Daphnia) abundance. This suggests that for freshwater pelagic communities, top-down effects may be stronger in more oligotrophic systems.

scholarly journals Structural glaciology of the fast-moving Jakobshavn Isbræ, Greenland, compared to the surging Bering Glacier, Alaska, U.S.A.

2000 ◽  
Vol 30 ◽  
pp. 243-249 ◽  
Author(s):  
Helmut Mayer ◽  
Ute Christina Herzfeld
Keyword(s):  
Fast Moving ◽  
Flow Direction ◽  
Kinematics And Dynamics ◽  
Similar Data ◽  
Brittle Deformation ◽  
West Greenland ◽  
Video Images ◽  
Ice Stream ◽  
Bering Glacier

AbstractCrevasse patterns revealing mostly brittle deformation on glacier surfaces are analyzed based on video images collected during systematic overflights of Jakobshavn Isbræ, West Greenland, the Earths continuously fastest moving ice stream, in 1996 and 1997. Crevasse patterns on the surface of the central ice stream are distinct. All crevasses are closed, the surface appears rather smooth. Towards the margins, typical shear patterns with conjugate shears and still-closed crevasses prevail, curved patterns indicate the bending of crevasse lines into the flow direction. Outward from this zone different patterns of open crevasses occur. This suite of patterns is compared to similar data collected over Bering Glacier, Alaska, U.S.A., during its recent surge from 1993–95. There a number of patterns of mostly open crevasses is characteristic: parallel crevasses, two-directional orthogonal open crevasses, arrays of wavy crevasses, en-echelon crevasses. These patterns of the surging glacier are completely different from those of the fast-moving ice stream indicating different underlying kinematics and dynamics.

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