Inverse-estuarine Features of the Upper Gulf of California

Lavín, Miguel F.; Godínez, Víctor M.; Alvarez, Luis G.

doi:10.1006/ecss.1998.0387

Cited by 101 publications

(82 citation statements)

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“…Before the Colorado River was dammed, the UGC was an estuarine environment, at least during the peak river discharge (Carbajal et al, 1997;Lavín and Sánchez, 1999). Today the UGC is an inverse estuary throughout the year (Lavín et al, 1998). Lavín et al (1998) suggested that gravity currents might be important in the UGC, and be modulated by the spring-neaps cycle, with events occurring during neap tides; recent surveys and moored current meter observations confirm this.…”

Section: The Upper Gulf Of Californiamentioning

confidence: 99%

“…Today the UGC is an inverse estuary throughout the year (Lavín et al, 1998). Lavín et al (1998) suggested that gravity currents might be important in the UGC, and be modulated by the spring-neaps cycle, with events occurring during neap tides; recent surveys and moored current meter observations confirm this. A most compelling evidence for the existence, and fortnightly modulation, of gravity currents in the UGC is the progressive vector diagram (PVD) from a current meter deployed in the center of the UGC during the summer of 1999 (Figure 16).…”

Section: The Upper Gulf Of Californiamentioning

confidence: 99%

See 1 more Smart Citation

An Overview of the Physical Oceanography of the Gulf of California

Lavín¹,

Marinone²

2003

Nonlinear Processes in Geophysical Fluid Dynamics

167

149

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Abstract. The Gulf of California (GC) presents several oceanographic features that make it unique among semienclosed seas of similar latitude and dimensions, the most important being strong tidal mixing, some of it close to deep stratification. Three-dimensional numerical model results suggest that tidal mixing may be more important than the thermohaline circulation in causing the long-term residual circulation, which consists of outflow in the upper 200 m and inflow below, plus a seasonally-reversing surface layer. The GC is an evaporative basin, but in the mean it gains heat through the surface. Lacking a sill at the point of connection with the Pacific Ocean (PO), the GC is constantly shaken by a wide spectrum of signals coming from the PO, including tides, subinertial trapped waves of various frequencies and El Niño. The seasonal dynamics and thermodynamics of the GC are dominated by the PO, not by local wind or buoyancy flux. Local processes are important at shorter time scales and in altering the thermohaline characteristics of the upper-layer waters. Tidal currents generate internal tides, packets of solitons, and sea surface temperature fronts from which jets may form. Coastal upwelling also seems to generate jets that separate from capes, especially on the mainland coast. The mesoscale off-shore circulation in the GC consists of a series of basin-wide geostrophic gyres that reach below 1000 m; their effect on the mean and seasonal circulation and thermodynamics of the GC remains to be studied. During summer, the currents in the mainland continental shelf are due to coastal trapped waves, while during winter they are wind-driven. The most important interannual anomalies in the GC are due to El Niño.

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Section: The Upper Gulf Of Californiamentioning

confidence: 99%

Section: The Upper Gulf Of Californiamentioning

confidence: 99%

An Overview of the Physical Oceanography of the Gulf of California

Lavín¹,

Marinone²

2003

Nonlinear Processes in Geophysical Fluid Dynamics

167

149

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“…Texas (Solis and Powell 1999), Brazil (Kjerfve et al 1996), Baja, Mexico (Lavin et al 1998) and Florida Bay (Fourqurean and Robblee 1999). Despite its importance in these and similar estuaries, evaporation in such settings has not been studied in detail, and frequently it is simply extrapolated from nearby land-based measurements.…”

Section: Introductionmentioning

confidence: 99%

Variation and uncertainty in evaporation from a subtropical estuary: Florida Bay

Price

Nuttle²,

Cosby

et al. 2007

Estuaries and Coasts: J ERF

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Variation and uncertainty in estimated evaporation was determined over time and between two locations in Florida Bay, a subtropical estuary. Meteorological data was collected from September 2001 to August 2002 at Rabbit Key and Butternut Key within the bay.Evaporation was estimated using both vapor-flux and energy-budget based methods. The results were then placed into a long-term temporal context using 33 years of temperature and rainfall data collected in south Florida. Evaporation also was estimated from this long-term data using an empirical formula relating evaporation to clear sky solar radiation and air temperature.Evaporation estimates for the 12 month period ranged from 144 to 175 cm yr -1 , depending on location and method, with an average of 163 cm yr -1 ("9%). Monthly values ranged from 9.2 cm to 18.5 cm, with the highest value observed in May, corresponding with the maximum in measured net radiation. Uncertainty estimates derived from measurement errors in the data were as much as 10%, and were large enough to obscure differences in evaporation between the two sites. Differences among all estimates for any month indicate the overall uncertainty in monthly evaporation, and ranged from 9% to 26%. Over a 33-year period (1970 -2002), estimated annual evaporation from Florida Bay ranged from 148 to 181 cm yr -1 , with an average of 166 cm yr -1 . Rainfall was consistently lower in Florida Bay than evaporation, with a long-term average of 106 cm yr -1 Rainfall considered alone was uncorrelated with evaporation at both monthly and annual time scales; however, when the seasonal variation in clear sky radiation also was taken into account both net radiation and evaporation were significantly suppressed in months with high rainfall.

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“…Wolanski 1986, Nunes and Lennon 1986, de Silva Samarasinghe and Lennon 1987, Burling et al 1999, de Silva Samarasinghe et al 2003 and studied in other parts of the world (e.g. Lavin et al 1998;de Castro et al 2004). In this paper, first insight into the physical oceanographic conditions from an early spring hydrographic survey of Hervey Bay, located off the coast of central eastern Australia, and its physical settings is provided.…”

Section: Introductionmentioning

confidence: 99%

A study into the export of saline water from Hervey Bay, Australia

Ribbe

2006

Estuarine, Coastal and Shelf Science

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Inverse-estuarine Features of the Upper Gulf of California

Cited by 101 publications

References 0 publications

An Overview of the Physical Oceanography of the Gulf of California

An Overview of the Physical Oceanography of the Gulf of California

Variation and uncertainty in evaporation from a subtropical estuary: Florida Bay

A study into the export of saline water from Hervey Bay, Australia

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