scholarly journals On the Wind Contribution to the Variability of Ocean Currents Over Wide Continental Shelves: A Case Study on the Northern Argentine Continental Shelf

2019 ◽  
Vol 124 (11) ◽  
pp. 7457-7472 ◽  
Author(s):  
L. S. Lago ◽  
M. Saraceno ◽  
P. Martos ◽  
R. A. Guerrero ◽  
A. R. Piola ◽  
...  
Keyword(s):  
Continental Shelf ◽  
Ocean Currents ◽  
Continental Shelves

scholarly journals The role of continental shelves in nitrogen and carbon cycling: Northwestern North Atlantic case study

Ocean Science ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 539-548 ◽  
Author(s):  
K. Fennel
Keyword(s):  
Continental Shelf ◽  
North Atlantic ◽  
Deep Ocean ◽  
Open Ocean ◽  
Biogeochemical Models ◽  
Inorganic Matter ◽  
Continental Shelves ◽  
Shelf Region

Abstract. Continental shelves play a key role in the cycling of nitrogen and carbon. Here the physical transport and biogeochemical transformation processes affecting the fluxes into and out of continental shelf systems are reviewed, and their role in the global cycling of both elements is discussed. Uncertainties in the magnitude of organic and inorganic matter exchange between shelves and the open ocean is a major source of uncertainty in observation-based estimates of nitrogen and carbon fluxes. The shelf-open ocean exchange is hard to quantify based on observations alone, but can be inferred from biogeochemical models. Model-based nitrogen and carbon budgets are presented for the Northwestern North Atlantic continental shelf. Results indicate that shelves are an important sink for fixed nitrogen and a source of alkalinity, but are not much more efficient in exporting organic carbon to the deep ocean than the adjacent open ocean for the shelf region considered.

The Commission on the Limits of the Continental Shelf and its Disturbing Propensity to Legislate

2011 ◽  
Vol 26 (3) ◽  
pp. 355-383 ◽  
Author(s):  
Andrew Serdy
Keyword(s):  
United Nations ◽  
Continental Shelf ◽  
Law Of The Sea ◽  
Continental Shelves ◽  
United Nations Convention ◽  
The United Nations ◽  
The Law

AbstractCreated by the United Nations Convention on the Law of the Sea to apply the rules in Article 76 on the outer limits of the continental shelf beyond 200 nautical miles from States’ territorial sea baselines, the Commission on the Limits of the Continental Shelf has on several occasions introduced new requirements for States not supported by Article 76, or impermissibly qualifying the rights Article 76 accords them. This article focuses on several such instances, one to the coastal State’s advantage (though temporally rather than spatially), another neutral (though requiring unnecessary work of States), but the remainder all tending to reduce the area of continental shelves. The net effect has been to deprive States of areas of legal continental shelf to which a reasonable interpretation of Article 76 entitles them, and in one case even of their right to have their submissions examined on their merits, even though, paradoxically, the well-meaning intention behind at least some of the Commission’s pronouncements was to avoid other controversies.

Quantitative Content Analysis of the United Nations Seabed Debate: Methodology and a Continental Shelf Case Study

1970 ◽  
Vol 24 (3) ◽  
pp. 479-502 ◽  
Author(s):  
R. L. Friedheim ◽  
J. B. Kadane
Keyword(s):  
United Nations ◽  
Continental Shelf ◽  
Ad Hoc ◽  
Mineral Resources ◽  
Outer Edge ◽  
General Assembly ◽  
Wide Range ◽  
The Subject ◽  
The United Nations

International arrangements for the uses of the ocean have been the subject of long debate within the United Nations since a speech made by Ambassador Arvid Pardo of Malta before the General Assembly in 1967. Issues in question include the method of delimiting the outer edge of the legal continental shelf; the spectrum of ocean arms control possibilities; proposals to create a declaration of principles governing the exploration for, and the exploitation of, seabed mineral resources with the promise that exploitation take place only if it “benefits mankind as a whole,” especially the developing states; and consideration of schemes to create international machinery to regulate, license, or own the resources of the seabed and subsoil. The discussions and debates began in the First (Political and Security) Committee of the 22nd General Assembly and proceeded through an ad hoc committee to the 23rd and 24th assembly plenary sessions. The creation of a permanent committee on the seabed as a part of the General Assembly's machinery attests to the importance members of the United Nations attribute to ocean problems. Having established the committee, they will be faced soon with the necessity of reaching decisions. The 24th General Assembly, for example, passed a resolution requesting the Secretary-General to ascertain members' attitudes on the convening of a new international conference to deal with a wide range of law of the sea problems.

Assessing Bypassed Hydrocarbons

2021 ◽  
Author(s):  
Stanley Oifoghe ◽  
Nora Alarcon ◽  
Lucrecia Grigoletto
Keyword(s):  
Continental Shelf ◽  
Reservoir Characterization ◽  
Gamma Ray ◽  
West African ◽  
The Novel ◽  
The West ◽  
Present Case Study ◽  
Novel Model

Abstract Hydrocarbons are bypassed in known fields. This is due to reservoir heterogeneities, complex lithology, and limitations of existing technology. This paper seeks to identify the scenarios of bypassed hydrocarbons, and to highlight how advances in reservoir characterization techniques have improved assessment of bypassed hydrocarbons. The present case study is an evaluation well drilled on the continental shelf, off the West African Coastline. The targeted thin-bedded reservoir sands are of Cenomanian age. Some technologies for assessing bypassed hydrocarbon include Gamma Ray Spectralog and Thin Bed Analysis. NMR is important for accurate reservoir characterization of thinly bedded reservoirs. The measured NMR porosity was 15pu, which is 42% of the actual porosity. Using the measured values gave a permeability of 5.3mD as against the actual permeability of 234mD. The novel model presented in this paper increased the porosity by 58% and the permeability by 4315%.

scholarly journals The role of continental shelves in nitrogen and carbon cycling

2010 ◽  
Vol 7 (1) ◽  
pp. 177-205
Author(s):  
K. Fennel
Keyword(s):  
Continental Shelf ◽  
North Atlantic ◽  
Deep Ocean ◽  
Open Ocean ◽  
Biogeochemical Models ◽  
Inorganic Matter ◽  
Continental Shelves ◽  
Shelf Region ◽  
Transformation Processes

Abstract. Continental shelves play a key role in the cycling of nitrogen and carbon. Here the physical transport and biogeochemical transformation processes affecting the fluxes into and out of continental shelf systems are reviewed, and their role in the global cycling of both elements is discussed. Uncertainties in observation-based estimates of nitrogen and carbon fluxes mostly result from uncertainties in the shelf-open ocean exchange of organic and inorganic matter, which is hard to quantify based on observations alone, but can be inferred from biogeochemical models. Model-based nitrogen and carbon budgets are presented for the Northwestern North Atlantic continental shelf. Results indicate that shelves are an important sink for fixed nitrogen and a source of alkalinity, but are not much more efficient in exporting organic carbon to the deep ocean than the adjacent open ocean for the shelf region considered.

scholarly journals Changed Late Quaternary Marine Environments on Atlantic Continental Shelf and Upper Slope

1988 ◽  
Vol 30 (3) ◽  
pp. 251-269 ◽  
Author(s):  
K.O. Emery ◽  
A.S. Merrill ◽  
E.R.M. Druffel
Keyword(s):  
Continental Shelf ◽  
Late Quaternary ◽  
Atlantic Coast ◽  
The United States ◽  
Sea Levels ◽  
Sediment Samples ◽  
Sediment Types ◽  
Continental Shelves ◽  
Environmental Histories ◽  
Upper Slope

About 2000 large sediment samples were collected during the early 1960s throughout the continental shelf off the Atlantic coast of the United States to establish and map sediment types including sediments relict from times of glacially low (and subsequently higher) sea levels. In about 510 of these samples we found fossil shells of mollusks remaining from environmental conditions different from those at present. Publications and collections by others contain about 70 additional samples having relict mollusks. Some of these shells indicate lower sea levels, others colder water, and still others warmer water than is now present. Radiocarbon measurements from earlier studies by us and others established the dates of colder water (late Pleistocene), and we made additional measurements to learn the dates of warmer water (about 1000 to 2000 yr B.P.). The results show reasonably enough that continental shelves are the sites of relict faunas as well as of sediments that indicate changed and complex environmental histories.

scholarly journals Seafloor habitat definition for spatial management in fisheries: A case study on the continental shelf of southeast Australia

1999 ◽  
Vol 22 (6) ◽  
pp. 705-720 ◽  
Author(s):  
Nicholas Bax ◽  
Rudy Kloser ◽  
Alan Williams ◽  
Karen Gowlett-Holmes ◽  
Tim Ryan
Keyword(s):  
Continental Shelf ◽  
Southeast Australia ◽  
Spatial Management

Assessment of Canada’s continental shelf beyond 200 NM

GEOMATICA ◽  
2020 ◽  
Vol 74 (2) ◽  
pp. 33-45
Author(s):  
David H. Gray
Keyword(s):  
United Nations ◽  
Continental Shelf ◽  
Historical Development ◽  
Exclusive Economic Zone ◽  
Continental Shelves ◽  
Economic Zone ◽  
The United Nations ◽  
Legal Jurisdiction

Since 1945, the legal jurisdiction off the coasts of States has changed from being a 3 mile territorial sea to a series of bands of territorial sea, contiguous zone, exclusive economic zone, and continental shelf. The paper summarizes the historical development of these zones. Now that Canada has submitted its claim for continental shelves beyond the 200 nautical mile (NM) limit to the United Nations’ Commission on the Limits of the Continental Shelf (CLCS), the author calculates estimates for the size of Canada’s continental shelf beyond 200 NMs in both the Atlantic and Arctic Oceans and assesses the effect of the counter-claims by its neighboring States.

Sign in / Sign up

Export Citation Format

Share Document