Simulation of wind-driven circulation in the Gulf of Elat (Aqaba)

Berman, Tal; Paldor, Nathan; Brenner, S.

doi:10.1016/s0924-7963(00)00045-2

Cited by 59 publications

(63 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The current direction is affected by the bottom topography. Unlike the thermocline depth and wind stress, the density change across the thermocline does not seem to have an effect on the circulation (Berman et al 2000). Moreover, the tidal current and water levels in the northern Gulf show strongly the effects of remote forcing (Monismith and Genin 2004).…”

Section: Introductionmentioning

confidence: 93%

“…During summer, the prevailing northern winds and stratification conditions governed significantly the currents at upper 12 m depth, which mostly directed to the south. Several studies showed that winds are effective external forces that govern surface and subsurface currents (Monismith and Genin 2004;Manasrah et al 2004;Berman et al 2000;Brenner et al 1988Brenner et al , 1989. On the other hand, a vertical anticlockwise rotation in current direction from top to bottom was observed specifically during summer and autumn seasons, which may be related to the Ekman wind drift in the coastal region with vertical wall (Price et al 1987;Krauss 1993), which predicts that a steady wind stress acting together with the Coriolis force will produce a transport of water to the right of the wind.…”

Section: Currentmentioning

confidence: 99%

“…The physical properties of the Gulf of Aqaba were investigated by several authors in order to demonstrate water masses characteristics, current pattern and water exchange regime between the Red Sea and the Gulf of Aqaba through the Strait of Tiran. Most of these studies explained that circulation in the Gulf of Aqaba is affected mainly by the external forces, such as water levels, winds, topography of shoreline and thermocline depth (Berman et al 2000;Berman et al 2002;Monismith and Genin 2004;Manasrah et al 2006a). The current direction is affected by the bottom topography.…”

Section: Introductionmentioning

confidence: 99%

“…A southward current along the west coast was observed most of the year, with a short period (November-January) of northward flow and an abrupt reversal in early February. The circulation in the Gulf is made up of a series of permanent gyres oriented along its axis (Manasrah et al 2004;Berman et al 2000). The topography and depth of the thermocline (∼ 250 m) are the main factors of the circulation pattern in the northern Gulf of Aqaba.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Seasonal changes of water properties and current in the northernmost gulf of aqaba, red sea

et al. 2007

View full text Add to dashboard Cite

Seasonal changes of tide signal(s), temperature, salinity and current were studied during the years [2004][2005] in the northernmost Gulf of Aqaba, which is under developmental activities, to obtain scientific bases for best management and sustainability. Spectrum analysis revealed permanent signals of tide measurements during all seasons, which represented semidiurnal and diurnal barotropic tides. The other signal periods of 8.13, 6.10-6.32, 4.16 and 1.02-1.05 h were not detected in all seasons, which were related to shallow water compound and overtides of principle solar and lunar constituents and to seiches generated in the Red Sea and the Gulf of Aqaba. Spatial and temporal distributions of temperature, salinity and density showed significant differences between months in the coastal and offshore region and no significant differences among the coastal sites, between the surface and bottom waters and between coastal and offshore waters. Therefore, the temporal and spatial variation of water properties in the northernmost Gulf of Aqaba behave similarly compared to other parts. The coastal current below 12 m depth was weak (3-6 cms -1 ) and fluctuated from east-northeastward to west-southwestward (parallel to the shoreline), which may be related to the effect of bottom topography and/or current density due to differential cooling between eastern and western parts in the study area, and wind-induced upwelling and downwelling in the eastern and western side, respectively. The prevailing northerly winds and stratification conditions during summer were the main causes of the southward current at 6 and 12 m depths with average speed of 28 and 12 cms -1 , respectively.

show abstract

Section: Introductionmentioning

confidence: 93%

Section: Currentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Seasonal changes of water properties and current in the northernmost gulf of aqaba, red sea

et al. 2007

View full text Add to dashboard Cite

show abstract

“…The usefulness of PVDs for studying coastal transport problems, then, is questionable. Despite this known limitation, PVDs have been used to examine a number of different coastal physical and biological processes including larvae dispersal (Epifanio et al 1989;Ben-Tzvi et al 2007;Fiechter et al 2008), sediment transport (Ogston et al 2004), and current variability (Berman et al 2000). Even in these applications, the limitations of PVDs often emerge.…”

mentioning

confidence: 99%

How useful are progressive vector diagrams for studying coastal ocean transport?

Carlson

Muscarella

Gildor

et al. 2010

Limnology & Ocean Methods

View full text Add to dashboard Cite

Progressive vector diagrams (PVDs) have been used to estimate transport in the coastal ocean from point measurements of velocity time series, although they strictly only approximate true particle trajectories in regions where the currents are spatially uniform. Currents in most coastal regions vary significantly in both space and time, making coastal transport estimates from PVDs questionable. Here, we used synoptic surface currents measured over periods of several months by HF radars in two coastal areas with distinctly different circulation features (the Gulf of Eilat, a deep, semi-enclosed basin, and the Delaware Bay mouth, a coastal estuarine outflow) to assess the time scales over which PVD paths computed from velocity time series at fixed points separate from particle trajectories computed from two-dimensional measured horizontal currents that vary in both space and time. In both study regions, PVDs and particle trajectories separate by 1 km over a mean time period of 7-10 h with no significant month-to-month variation in either region. The separation time statistics presented here should serve as a strong caution for investigators motivated to estimate transport using only point measurements.

show abstract

The particle tracking and analysis toolbox (PaTATO) for Matlab

Fredj

Carlson

Amitai

et al. 2016

Limnol. Oceanogr. Methods

View full text Add to dashboard Cite

Lagrangian particle tracking and Lagrangian coherent structures (LCS) analysis tools aid in the studies of fluid flow and are especially helpful in understanding the role of transport in marine ecosystems. However, most existing particle tracking and analysis tools operate in conjunction with a specific model and/or require execution in multiple programming languages. The Particle Tracking and Analysis TOolbox (PaTATO) for Matlab aims to increase the availability of particle tracking and analysis techniques to a wider audience. PaTATO is compatible with many different types of velocity data and can compute forward and backward trajectories in two and/or three dimensions. PaTATO can compute standard LCS metrics, like Lyapunov exponents and relative dispersion, as well as the maximal extent of a trajectory (MET), a relatively new metric. Most importantly, PaTATO is computationally efficient and easy-to-use. We describe PaTATO, and present examples using the time-periodic double gyre, high frequency radar surface current observations, the Massachusetts Institute of Technology general circulation model (MITgcm), altimeter-derived geostrophic velocities (AVISO), and Nucleous for European Modelling of the Ocean (NEMO).Lagrangian particle tracking tools are commonly used in oceanography and limnology to study transport and mixing of tracers by observed or modeled fluid flows. Example applications include ocean mixing (Poje and Haller

show abstract

Simulation of wind-driven circulation in the Gulf of Elat (Aqaba)

Cited by 59 publications

References 6 publications

Seasonal changes of water properties and current in the northernmost gulf of aqaba, red sea

Seasonal changes of water properties and current in the northernmost gulf of aqaba, red sea

How useful are progressive vector diagrams for studying coastal ocean transport?

The particle tracking and analysis toolbox (PaTATO) for Matlab

Contact Info

Product

Resources

About