A tidal mixing front in an area influenced by land runoff

Czitrom, Steven; Budéus, Gereon; Krause, Günther

doi:10.1016/0278-4343(88)90030-1

Cited by 17 publications

(16 citation statements)

References 13 publications

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“…The study of Czitrom et al (1988) analysed the applicability of the theory of Simpson and Hunter (1974) to the German Bight area, which is dominated by freshwater fluxes from Elbe and Weser rivers. They considered the parameter ξ = log(hu −3 0 ), which characterises the intensity of tidal stirring, where h is the water depth and u 0 is the tidal current amplitude.…”

Section: The Effect Of Densitymentioning

confidence: 99%

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Tidal and wind-driven surface currents in the German Bight: HFR observations versus model simulations

Port

Gurgel

Staneva³

et al. 2011

Ocean Dynamics

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Tidal and wind-driven surface currents in the German Bight between shallow mudflats of the North Frisian islands and the island of Helgoland are studied using coastal high-frequency radar (HFR) observations and hindcasts from a primitive equation numerical model. The setup of the observational system is described, and estimates of expected measurement errors are given. A quantitative comparison of numerical model results and observations is performed. The dominant tidal components are extracted from the two data sources using tidal harmonic analysis and the corresponding tidal ellipses are defined. Results show that the spatial patterns of different tidal ellipse parameters are consistent in the two data sets. Model sensitivity studies with constant and variable salinity and temResponsible Editor: Aida Alvera-Azcárate This article is part of the Topical Collection on Multiparametric observation and analysis of the Sea A. Port (B) ICBM,

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Section: The Effect Of Densitymentioning

confidence: 99%

“…In the case of the German Bight, the haline front is more important (Czitrom et al 1988), in particular in the southeastern corner, which is the major area of our interest.…”

Section: Introductionmentioning

confidence: 99%

Tidal and wind-driven surface currents in the German Bight: HFR observations versus model simulations

Port

Gurgel

Staneva³

et al. 2011

Ocean Dynamics

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“…They found that fronts appear at contours of log(h/u3) N (1.75-2.0) in the Irish Sea. In the German Bight fronts are located at values of log(h/u3) -(1.7-2.1) (Czitrom et al, 1988). This parameter was also calculated for the Colorado Delta and is shown in Fig.…”

Section: Simulation Of the Colorado River Rofimentioning

confidence: 99%

A numerical study of the ex-ROFI of the Colorado River

Carbajal

Souza

Durazo

1997

Journal of Marine Systems

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The freshwater discharge of the Colorado River into the Gulf of California has been reduced to negligible quantities since the construction of the Hoover Dam in 1935. These radical anthropogenic changes in the hydrography of the Colorado River Delta had striking repercussions on both physical and biological processes. Using historical river discharge data, the changes in the flow dynamics and hydrographic patterns before and after the drastic freshwater reduction are studied numerically, using a three-dimensional nonlinear shelf model. The results are applied to assess the environmental impact of the reduction of river discharge on the area. Satellite imagery is also used to compare our results with observed fronts. 0 1997 Elsevier Science B.V.

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“…Therefore the value of critical parameter log(H/U 3 ) in winter is the same as that in summer. Stratification parameter φ is found to show rather sudden change across the front and φ in line A is bigger than that in line B. φ in Osaka Bay in winter is from one-third to one-fifth that in summer and the same in winter of German Bight (Czitrom et al, 1988).…”

Section: Discussionmentioning

confidence: 77%

A tidal front in winter influenced by river discharge

Yuasa¹,

Ueshima²

1992

J Oceanogr

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Water quality of Osaka Bay is greatly influenced by freshwater discharge from rivers, to the effect of salinity playing a major role in forming the stratification. The tidal front is expected to appear in such an area even in winter considering the theory of the formation of a tidal front. From the field observation, we recognized a tidal front in winter for the first time in Osaka Bay. The critical value of a parameter log(H/U 3 ) for generation of a tidal front is obtained as a function of river discharge and cooling effect through sea surface. Differences of nutrients (NH 4 -N, PO 4 -P) concentration across the front are not clear, probably because they are utilized by phytoplankton easily. But in (NO 2 -N)+(NO 3 -N), DIN, PP and T-P, there is a discontinuity structure across the front, even if the absolute value of concentration difference is small.

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A tidal mixing front in an area influenced by land runoff

Cited by 17 publications

References 13 publications

Tidal and wind-driven surface currents in the German Bight: HFR observations versus model simulations

Tidal and wind-driven surface currents in the German Bight: HFR observations versus model simulations

A numerical study of the ex-ROFI of the Colorado River

A tidal front in winter influenced by river discharge

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