Upper-lower layer coupling of recurrent circulation patterns in the Gulf of Mexico

2021 ◽  
Author(s):  
Erick Olvera-Prado ◽  
Efrain Moreles ◽  
Jorge Zavala-Hidalgo ◽  
Rosario Romero-Centeno
Keyword(s):  
Gulf Of Mexico ◽  
Lower Layer ◽  
Circulation Patterns

scholarly journals Dominant Circulation Patterns of the Deep Gulf of Mexico

2018 ◽  
Vol 48 (3) ◽  
pp. 511-529 ◽  
Author(s):  
Paula Pérez-Brunius ◽  
Heather Furey ◽  
Amy Bower ◽  
Peter Hamilton ◽  
Julio Candela ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Large Scale ◽  
Bottom Layer ◽  
Loop Current ◽  
Cyclonic Gyre ◽  
Boundary Current ◽  
Mean Flow ◽  
Western Basin ◽  
Boundary Flow ◽  
Circulation Patterns

AbstractThe large-scale circulation of the bottom layer of the Gulf of Mexico is analyzed, with special attention to the historically least studied western basin. The analysis is based on 4 years of data collected by 158 subsurface floats parked at 1500 and 2500 m and is complemented with data collected by current meter moorings in the western basin during the same period. Three main circulation patterns stand out: a cyclonic boundary current, a cyclonic gyre in the abyssal plain, and the very high eddy kinetic energy observed in the eastern Gulf. The boundary current and the cyclonic gyre appear as distinct features, which interact in the western tip of the Yucatan shelf. The persistence and continuity of the boundary current is addressed. Although high variability is observed, the boundary flow serves as a pathway for water to travel around the western basin in approximately 2 years. An interesting discovery is the separation of the boundary current over the northwestern slope of the Yucatan shelf. The separation and retroflection of the along-slope current appears to be a persistent feature and is associated with anticyclonic eddies whose genesis mechanism remains to be understood. As the boundary flow separates, it feeds into the westward flow of the deep cyclonic gyre. The location of this gyre—named the Sigsbee Abyssal Gyre—coincides with closed geostrophic contours, so eddy–topography interaction via bottom form stresses may drive this mean flow. The contribution to the cyclonic vorticity of the gyre by modons traveling under Loop Current eddies is discussed.

scholarly journals Investigation of Vertical and Horizontal Momentum Transfer in the Gulf of Mexico Using Empirical Mode Decomposition Method

2005 ◽  
Vol 35 (8) ◽  
pp. 1383-1402 ◽  
Author(s):  
Ronald J. Lai ◽  
Norden Huang
Keyword(s):  
Gulf Of Mexico ◽  
Empirical Mode Decomposition ◽  
Rossby Waves ◽  
Lower Layer ◽  
Small Scale ◽  
Layer Depth ◽  
Shelf Slope ◽  
Mode Decomposition ◽  
Cross Correlation Analysis ◽  
Topographic Rossby Waves

Abstract Data from a series of deep mooring stations in the Gulf of Mexico (GOM) have been analyzed with the newly developed empirical mode decomposition and Hilbert spectral analysis method, abbreviated as Hilbert–Huang transformation (HHT). The flows in the GOM near the shelf/slope region are treated as a two-layer system, with the 800-m permanent thermocline as the dividing depth. When the data are treated with HHT, motions of different temporal scales are identified. The top layer (depth less than 800 m) is controlled by inertia flow with episodic Loop Current eddies, while the lower layer (depth greater than 800 m) is controlled primarily by the topographic Rossby waves and small-scale cyclonic and anticyclonic eddies. Using a cross-correlation analysis between the appropriate intrinsic mode components from the data, the wavelength, the phase velocity, and the vertical trapping depth for the topographic Rossby waves were determined. Observations are in general agreement with the modeled results by Oey and Lee.

Circulation patterns inferred from the movement of detached buoys in the eastern Gulf of Mexico

1987 ◽  
Vol 7 (8) ◽  
pp. 883-894 ◽  
Author(s):  
William W. Schroeder ◽  
Scott P. Dinnel ◽  
William J. Wiseman ◽  
William J. Merrell
Keyword(s):  
Gulf Of Mexico ◽  
Eastern Gulf Of Mexico ◽  
Circulation Patterns

Author response for "Microtexture and U–Pb geochronology of detrital zircon grains in the Chachalacas beach, Veracruz State, Gulf of Mexico"

2020 ◽  
Author(s):  
John S. Armstrong‐Altrin ◽  
Mayla A. Ramos‐Vázquez ◽  
Nadia Y. Hermenegildo‐Ruiz ◽  
Jayagopal Madhavaraju
Keyword(s):  
Gulf Of Mexico ◽  
Detrital Zircon ◽  
Author Response

Consumption of turtle grass seeds and seedlings by crabs in the western Gulf of Mexico

2015 ◽  
Vol 520 ◽  
pp. 153-163 ◽  
Author(s):  
KM Darnell ◽  
KH Dunton
Keyword(s):  
Gulf Of Mexico ◽  
Turtle Grass

Effects of hypoxia on habitat quality of pelagic planktivorous fishes in the northern Gulf of Mexico

2014 ◽  
Vol 505 ◽  
pp. 209-226 ◽  
Author(s):  
H Zhang ◽  
DM Mason ◽  
CA Stow ◽  
AT Adamack ◽  
SB Brandt ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Habitat Quality ◽  
Northern Gulf Of Mexico
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