Temporal scales for transport patterns in the Gulf of Finland

被引：18
|
作者：
Viikmäe B. [1 ]
Soomere T. [1 ,2 ]
Viidebaum M. [1 ]
Berezovski M. [1 ]
机构：
[1] Institute of Cybernetics at Tallinn University of Technology, Akadeemia tee 21
[2] Visiting scientist to the Australian National Network in Marine Sciences, James Cook University, Townsville
来源：
Estonian Journal of Engineering | 2010年 / 16卷 / 03期
关键词：
Baltic Sea; Currents; Gulf of Finland; Hydrodynamic modelling; Lagrangian transport;
D O I：
10.3176/eng.2010.3.02
中图分类号：
学科分类号：
摘要：
The basic time scales for current-induced net transport of surface water and associated time scales of reaching the nearshore in the Gulf of Finland, the Baltic Sea, are analysed based on Lagrangian trajectories of water particles reconstructed from three-dimensional velocity fields by the Rossby Centre circulation model for 1987-1991. The number of particles reaching the nearshore exhibits substantial temporal variability whereas the rate of leaving the gulf is almost steady. It is recommended to use an about 3 grid cells wide nearshore area as a substitute to the coastal zone and about 10-15 day long trajectories for calculations of the probability of reaching the nearshore. An appropriate time window for estimates of the properties of net transport patterns is 4-10 days.
引用
收藏
页码：211 / 227
页数：16
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