Northeast Gulf of Mexico Hydrographic Survey Data Collected in 1965
Northeast Gulf of Mexico Hydrographic Survey Data Collected in 1965

Author: Roy D. Gaul

Publisher:

Published: 1966

Total Pages: 220

ISBN-13:

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This report summarizes data collected during periodic hydrographic surveys made in 1965 over the continental shelf and slope of the northeast Gulf of Mexico. The survey region extends from the Mississippi Delta to Cape San Blas, Florida (about 300 nautical miles) and offshore to about the 1,000 fathom depth contour (100 to 110 nautical miles). Hydrographic observations consisted mainly of vertical profiles of temperature and salinity obtained by means of bathythermographs and salinity determinations of water samples taken at selected depths or by a salinity/temperature/depth (STD) instrument. In addition, several thousand drift bottles were released at selected locations in the survey area. (Author).

Northeast Gulf of Mexico Hydrographic Survey
Northeast Gulf of Mexico Hydrographic Survey

Author: R. D. Gaul

Publisher:

Published: 1965

Total Pages: 182

ISBN-13:

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The report summarizes data collected during periodic hydrographic surveys made in 1964 over the continental shelf and slope of the northeast Gulf of Mexico. The survey region extends from the Mississippi Delta to Cape San Blas (about 200 nautical miles) and offshore to the 1000 fathom depth contour (100 to 110 nautical miles). The surveys serve two primary purposes. One is to provide 'background' information on the physical environment over the shelf to aid in interpretation of phenomena observed in the vicinity of nearshore platforms off Panama City (Gaul, et al., 1963). The second is to study the distribution of physical properties as related to circulation over and outside the shelf.

Northeast Gulf of Mexico Hydrographic Survey
Northeast Gulf of Mexico Hydrographic Survey

Author: R. D. Gaul

Publisher:

Published: 1964

Total Pages: 89

ISBN-13:

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The survey region extends from the Mississippi Delta to Cape San Blas (about 200 nautical miles) and offshore to the 200 fathom depth contour (50 to 70 nautical miles). The surveys serve two primary purposes. One is to provide 'background' information on the physical environment over the shelf to aid in interpretation of phenomena observed in the vicinity of nearshore platforms off Panama City (Gaul, et al, 1963). The second is to study the distribution of physical properties as related to circulation over and outside the shelf. Studies of environmental influences on the distribution and occurrence of pelagic fishes (Vick, 1964) and 'fouling' organisms (Gaul and Vick, 1964; Pequegnat, Gaul and Dean, 1964) also depend on survey data.

Hydrographic Studies in the Northeast Gulf of Mexico
Hydrographic Studies in the Northeast Gulf of Mexico

Author: Kirby L. Drennan

Publisher:

Published: 1968

Total Pages: 222

ISBN-13:

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The major circulatory features and distribution of physical properties in the northeast Gulf of Mexico are presented from a series of eight quasi-synoptic surveys. Seasonal changes in hydrography and circulation over the continental shelf are shown and discussed in terms of their relationship to the offshore currents, river discharge, winds, and tides. Surface current speed and direction are determined from an extensive drift bottle study and distribution of density. (Author).

Northeastern Gulf of Mexico Chemical Oceanography and Hydrography Study Synthesis Report
Northeastern Gulf of Mexico Chemical Oceanography and Hydrography Study Synthesis Report

Author: U S Department of the Interior Minerals

Publisher: CreateSpace

Published: 2015-01-03

Total Pages: 590

ISBN-13: 9781505525687

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MMS had three objectives for the study. First was to develop an oceanographic experimental design of research cruises covering the NEGOM study area with sufficient frequency to resolve seasonal variations of chemical oceanography and hydro graphic parameters. Second was to collect the ancillary data needed to complement and analyze the chemical oceanographic and hydro graphic measurements. Third was to analyze the data to describe the vertical and horizontal spatial distributions and temporal variability of water properties and to describe the processes that contribute to the production of the observed distributions.Study results will assist MMS in its management of the nation's Outer Continental Shelf Leasing Program, including oil and gas leases in federal waters of the northeast Gulf shelves and upper slope.

Circulation Over the Continental Margin of the Northeast Gulf of Mexico
Circulation Over the Continental Margin of the Northeast Gulf of Mexico

Author: Roy D. Gaul

Publisher:

Published: 1966

Total Pages: 274

ISBN-13:

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The ocean circulation over the continental margin of the northeast Gulf of Mexico has been delineated on the basis of three years of hydrographic and direct current observations. A wide range of measurement techniques was used at two fixed platforms in the nearshore region off Panama City, Florida, and from small vessels during periodic surveys conducted over a larger area. Evidence is presented for a close coupling between circulation over the continental margin and that in deeper water. The "loop" current, which transports water into the Gulf from the Yucatan Channel, is identified on the basis of water mass characteristics as far north as the edge of the northeast continental slope. Lateral mixing with waters over the continental margin is evidenced by smooth transitions of salinity-temperature relations characterizing offshore and nearshore waters. It is suggested that the loop current is the main driving influence for circulation over the continental margin, especially below the seasonal thermocline. Flow over the continental margin is modified markedly by ocean bottom topography. De Soto Canyon, the most prominent single bathymetric feature, appears to have a dominant influence on replenishment of water in the lower layer over the shelf. A zone of horizontal transition in hydrography and currents has been noted along the break between shelf and slope, especially during the spring months when stratification over the shelf is incipient. ...