Tidal Resonance and Tidal Barriers in the Bay of Fundy System

1970 ◽  
Vol 27 (10) ◽  
pp. 1701-1728 ◽  
Author(s):  
G. F. D. Duff
Keyword(s):  
Continental Shelf ◽  
Gulf Of Maine ◽  
Resonant Mode ◽  
Bay Of Fundy ◽  
Two Dimensional ◽  
Harmonic Model ◽  
Double Barrier ◽  
One Dimensional ◽  
Tidal Regime ◽  
Resonant Region

A near-resonant mode of oscillation extending to the continental shelf in the Gulf of Maine is shown to be a contributing factor in the extreme high M2 tidal ranges in the Bay of Fundy.The effect on the M2 tidal regime of a double barrier at Cape Chignecto is studied by two methods. A one-dimensional simple harmonic model shows the effect of placing the matching boundary at any intermediate position and defines a probable zone of values for the barrier amplitude. A two-dimensional calculation covering the entire resonant region gives an estimated amplitude reduction of 34% at the Cape Chignecto barrier site.

scholarly journals Submarine glacial landforms on the Bay of Fundy–northern Gulf of Maine continental shelf

2016 ◽  
Vol 46 (1) ◽  
pp. 429-436 ◽  
Author(s):  
B. J. Todd ◽  
J. Shaw ◽  
P. C. Valentine
Keyword(s):  
Continental Shelf ◽  
Gulf Of Maine ◽  
Bay Of Fundy ◽  
Glacial Landforms

Bottom Residual Drift on the Continental Shelf Area of the Canadian Atlantic Coast

1967 ◽  
Vol 24 (9) ◽  
pp. 1845-1859 ◽  
Author(s):  
L. M. Lauzier
Keyword(s):  
Continental Shelf ◽  
Gulf Of Maine ◽  
Atlantic Coast ◽  
Bay Of Fundy ◽  
Shelf Area ◽  
Residual Drift ◽  
Sea Bed ◽  
Continental Shelf Area ◽  
Relationship Of ◽  
The Relationship

From 1961 to 1965, 14,137 sea-bed drifters were released over the Continental Shelf from the Gulf of St. Lawrence to the Gulf of Maine–Bay of Fundy to investigate the residual drift along the bottom. A total of 2772 drifters were recovered either from the sea floor or along the shores. The recovery pattern, in time and in space, is studied for various portions of the Shelf.The inferred residual bottom drift is shown in a series of three charts. The estimated rate of drift lies between 0.2 and 0.7 nautical mile/day. The continuity of bottom drift over large areas is indicated. The relationship of surface to bottom drift is studied. Areas of convergence and upwelling are emphasized. No seasonal variations in the direction of bottom drift and in the speed have as yet been detected.

Recent coastal submergence of the Maritime Provinces, Canada

1970 ◽  
Vol 7 (2) ◽  
pp. 676-689 ◽  
Author(s):  
Douglas R. Grant
Keyword(s):  
Mathematical Models ◽  
Continental Shelf ◽  
Sea Level ◽  
Gulf Of Maine ◽  
Atlantic Coast ◽  
High Tide ◽  
The Other ◽  
Tidal Range ◽  
Bay Of Fundy ◽  
Maritime Provinces

Hydrographic, archeologic, and geologic evidence indicates that for the last 4000 y the Maritime Provinces have been submerging three to five times faster than the 6 cm/century rate of eustatic rise of sea level. After correcting for the eustatic change, the Bay of Fundy shows an anomalous submergence of 24 cm/century, of which at least 15 cm/century is probably due mainly to rise of high tide, or increase of tidal range, beginning 4000–6000 y ago as eustatic sea-level rise widened and deepened the entrance to the Gulf of Maine. Submergence of the Atlantic coast of Nova Scotia, on the other hand, exceeds the eustatic rate by 9 cm/century, which can be largely explained by new mathematical models as isostatic subsidence of the earth's crust as the sea deepened eustatically over the continental shelf. Only a small part of the residual anomalies of 9 cm and 4 cm/century for the Fundy and Atlantic coasts, respectively, can be attributed to a combination of additional subsidence due to geosynclinal downwarping and relaxation of a possible glacier-margin peripheral bulge, thereby implicating other modes of regional crustal lowering.

scholarly journals Quasistationary states in a quantum dot formed at the edge of a topological insulator by magnetic barriers with finite transparency

2021 ◽  
Vol 2103 (1) ◽  
pp. 012201
Author(s):  
D V Khomitsky ◽  
E A Lavrukhina
Keyword(s):  
Topological Insulator ◽  
Two Dimensional ◽  
Edge States ◽  
Stationary Schrödinger Equation ◽  
Double Barrier ◽  
One Dimensional ◽  
Occupation Numbers ◽  
The One ◽  
Magnetic Barriers ◽  
Double Barrier Structure

Abstract A model of quasistationary states is constructed for the one-dimensional edge states propagating along the edge of a two-dimensional topological insulator based on HgTe/CdTe quantum well in the presence of magnetic barriers with finite transparency. The lifetimes of these quasistationary states are found analytically and numerically via different approaches including the solution of the stationary Schrödinger equation with complex energy and the solution of the transmission problem for a double barrier structure. The results can serve as a guide for determining the parameters of magnetic barriers creating the quantum dots where the lifetimes for the broadened discrete levels are long enough for manipulation with their occupation numbers by external fields.

A one-dimensional self-gravitating stellar gas

1966 ◽  
Vol 25 ◽  
pp. 46-48 ◽  
Author(s):  
M. Lecar
Keyword(s):  
Gravitational Field ◽  
Phase Space ◽  
Motion Picture ◽  
Space Distribution ◽  
Two Dimensional ◽  
One Dimensional ◽  
Phase Space Distribution ◽  
Dimensional Phase Space ◽  
The Mean

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.

COMPARISON OF TWO-DIMENSIONAL-ONE-DIMENSIONAL COUPLING METHODS FOR TIME-HARMONIC ELASTICITY

2014 ◽  
Vol 12 (6) ◽  
pp. 485-506 ◽  
Author(s):  
Yoav Ofir ◽  
Daniel Rabinovich ◽  
Dan Givoli
Keyword(s):  
Two Dimensional ◽  
One Dimensional ◽  
Coupling Methods ◽  
Time Harmonic ◽  
Dimensional Coupling

State-of-the-Art of Modeling Surface Water Impoundments

1982 ◽  
Vol 14 (1-2) ◽  
pp. 241-261 ◽  
Author(s):  
P A Krenkel ◽  
R H French
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
State Of The Art ◽  
Rate Coefficients ◽  
Two Dimensional ◽  
One Dimensional ◽  
Integral Energy ◽  
Range Of Values ◽  
Dimensional Integral ◽  
Water Impoundment

The state-of-the-art of surface water impoundment modeling is examined from the viewpoints of both hydrodynamics and water quality. In the area of hydrodynamics current one dimensional integral energy and two dimensional models are discussed. In the area of water quality, the formulations used for various parameters are presented with a range of values for the associated rate coefficients.

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