Hydrology and rain flushing of the Nichupté Lagoon System, Cancún, México

Merino, Martı́n; Czitrom, Steven; Jordán, Estela Luna; Martín, E.; Thomé, Patricia E.; Moreno, Ortiz

doi:10.1016/0272-7714(90)90049-w

Cited by 36 publications

(17 citation statements)

References 2 publications

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“…The most notable case involves the eutrophication of the Nichupté and Bojórquez lagoon systems around which the tourist resort and city of Cancun were constructed (Arnaiz & Dachary, 1992;Bosselman, 1978;Dachary & Arnaiz, 1985;Kandelaars, 2000;Merino et al, 1990;Merino et al, 1993;Reyes & Merino, 1991). In particular, Cancun's inadequate wastewater treatment capacity, largely a function of the city's inability to keep up with exploding urbanisation, is perhaps the most important environmental problem threatening its most precious tourism asset -the coastal environment.…”

Section: The Cancun Tic As An Engine For Developing the 'Empty Quarter'mentioning

confidence: 99%

Planned Tourism Development in Quintana Roo, Mexico: Engine for Regional Development or Prescription for Inequitable Growth?

Torres

Momsen

2005

Current Issues in Tourism

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Section: The Cancun Tic As An Engine For Developing the 'Empty Quarter'mentioning

confidence: 99%

Planned Tourism Development in Quintana Roo, Mexico: Engine for Regional Development or Prescription for Inequitable Growth?

Torres

Momsen

2005

Current Issues in Tourism

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“…1A). The Yucat an Peninsula's geology consists of highly permeable limestone where rainfall infiltrates quickly into the ground and aquifer, leading to the general absence of surface rivers (Merino et al 1990;Beddows et al 2007;Gonneea et al 2014). Freshwater aquifer depths are 5-20 m near the eastern coast of the Yucat an Peninsula and may increase in depth with distance inland (Beddows et al 2007;Charvet 2009).…”

Section: Study Areamentioning

confidence: 99%

Seasonal variability of saltwater intrusion at a point‐source submarine groundwater discharge

Parra

Valle‐Levinson

Mariño‐Tapia

et al. 2016

Limnology & Oceanography

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Submarine groundwater discharge provides freshwater and nutrients to coastal environments. In some places throughout the world, this direct connection between aquifers and oceans may also allow saltwater intrusion. Saltwater intrusion was studied at a submarine spring within a fringing reef lagoon on the eastern Yucat an Peninsula by observing its intratidal and synoptic-scale variations during wet and dry periods. Saltwater intrusion was linked to wave-driven setup, no rain, high tides, and sea-level rise caused by remote forcing from Yucat an Current variability. Jet discharge velocities were inversely related to tidal oscillations, with maximum velocities at low tides. The wet period produced saltwater intrusion at high tides associated with three different conditions: syzygy tides, wave setup, and Yucat an Current weakening. During the dry period, saltwater intrusion occurred throughout most high tides and was aided by Yucat an Current weakening and wind-driven setup within the lagoon. These results suggested that seasonal precipitation was most important in modulating spring discharge, followed by syzygy tides, Yucat an Current variability, and wave events. The spring discharge was modeled with a modified Bernoulli energy equation that included a friction term. Aquifer elevation and a friction factor were used as free parameters. The dry period produced the best model results because of infrequent rainfall that yielded a relatively steady aquifer level. Precipitation during the wet period most likely led to a more variable aquifer level, reducing the variance explained by the model that assumes a constant aquifer elevation. Nevertheless, the model predicted saltwater intrusion events reasonably well using simplified physics.It has been proposed that submarine groundwater discharges (SGDs) provide 3-4 times more discharge (including freshwater and recirculated saltwater) into the global oceans than riverine inputs (Kwon et al. 2014). The discharges from these coastal aquifers not only represent freshwater fluxes but also provide dissolved nutrients to the coastal seas and global oceans commonly in higher concentrations than surface waters (Hamner and Wolanski 1988;Li et al. 1999;Null et al. 2014). Coastal aquifers are hydraulically connected to coastal seas through the seabed. These connections are achieved through SGDs when the pressure head within the aquifer is greater than at sea (Johannes 1980). Two main types of SGDs occur on the basis of coastal geology: slow diffuse discharges (<1 m d 21 ) through sandy sediments or fast point-source discharges (1 m s 21 ) through conduits (Zektser and Everett 2000). Point-source discharges (submarine springs/jets) often occur in karst topography, characterized by limestone or dolomite bedrock. Groundwater flows can dissolve channels and caves into the mainly calcium carbonate substrate (Shuster and White 1971;Beddows et al. 2007;Valle-Levinson et al. 2011). The flux rate of submarine springs generally depends on the water level slope between the ocean and aquifer wat...

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“…Because of its high permeability, rainfall quickly seeps into the aquifer. This explains the absence of surface rivers in the region [Merino et al, 1990]. Also owing to the high permeability in the aquifer, the water table has low hydraulic gradients ranging from 7 to 100 mm km 21 and is known to be controlled by sea level variations and recharge from precipitation [Gonz alez-Herrera et al, 2002;Beddows et al, 2007].…”

Section: Study Sitementioning

confidence: 99%

Salt intrusion at a submarine spring in a fringing reef lagoon

et al. 2015

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Variations in discharge and turbulent kinetic energy (TKE) were studied at a point-source submarine groundwater discharge (SGD), within a fringing reef lagoon, from quadrature (neap) to syzygy (spring) tides. The principal factors affecting discharge and TKE variations were tides and waves. Field data indicated discharge, and TKE varied with high and low tides, and with quadrature and syzygy. Maximum discharge and TKE values were observed during low tides when the hydrostatic pressure over the jet was minimal, while the lowest discharge and TKE values were found at high tides. Syzygy tides produced consistent saltwater intrusion during high tides, while quadrature tides produced the greatest TKE values. In general, as the discharge intensified during low tides, jet temperatures decreased suggesting that waters originated further within the aquifer. At the same time jet salinities increased, suggesting a mixing of aquifer and seawater. To reconcile these two seemingly opposing views, it is proposed that the jet conduit is connected to a stratified chamber with seawater below brackish water. The greatest subtidal discharge occurred during quadrature tides. Syzygy produced low subtidal discharge driven by flow reversals (flow into the aquifer) observed throughout syzygy high tides in conjunction with the peak wave setup (>5 cm) observed during a storm. While tides were the primary driving force of the discharge, waves played a nonnegligible role. Wave effects on the discharge were most evident during syzygy high tides combined with a storm, when the subtidal spring discharge was weakest and salt intrusion developed.

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Hydrology and rain flushing of the Nichupté Lagoon System, Cancún, México

Cited by 36 publications

References 2 publications

Planned Tourism Development in Quintana Roo, Mexico: Engine for Regional Development or Prescription for Inequitable Growth?

Planned Tourism Development in Quintana Roo, Mexico: Engine for Regional Development or Prescription for Inequitable Growth?

Seasonal variability of saltwater intrusion at a point‐source submarine groundwater discharge

Salt intrusion at a submarine spring in a fringing reef lagoon

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