294
T. Soomere
Fig. 9.6 The complexity of trajectories of water particles calculated using the TRACMASS code
(Chap. 7) and the Rossby Centre Ocean (RCO) model data in the Baltic Sea entering the sea
through the Øresund (red), Great Belt (green) and from River Neva through the Gulf of Finland
(blue). Visualization by K. Döös (Soomere et al. 2011a)
alternatively, the properties of the Eulerian flow field) are known (e.g., Korotenko
et al. 2010). The studies cover a wide range of applications, from a verification
of the classical circulation models beyond that offered in an Eulerian assessment
(Ohlmann and Mitarai 2010) up to intricate statistical models of oil spill propagation based on a large number of propagation scenarios (Abascal et al. 2010), evaluation systems based on simulating the transport of the underlying contaminant or
toxic algae (Chrastansky and Callies 2009; Havens et al. 2010) or forecasting search
areas using ensemble modelling (Melsom et al. 2012). Following the widely used
approach in atmospheric sciences (e.g., Lin et al. 2004; Witham and Manning 2007),
the analysis of Lagrangian trajectories is now increasingly used for the restoration of
the link between the source and impact areas of pollution in the marine environment
(Chrastansky et al. 2009, among others).
9.3.2 Circulation Models
A detailed study of reasonable parameters and temporal and spatial scales of the calculations of Lagrangian trajectories, suitable for highlighting semi-persistent current
patterns in the Gulf of Finland, is presented in Viikmäe et al. (2010), Soomere et al.
(2011a). They used the surface-layer velocity fields from 3D current velocity data
simulated for 1987–1991. This time period matches the one used in earlier circulation simulations (Andrejev et al. 2004a, 2004b) and was also used in a subsequent
series of studies into properties of probability distributions for coastal hits (events
T. Soomere
Fig. 9.6 The complexity of trajectories of water particles calculated using the TRACMASS code
(Chap. 7) and the Rossby Centre Ocean (RCO) model data in the Baltic Sea entering the sea
through the Øresund (red), Great Belt (green) and from River Neva through the Gulf of Finland
(blue). Visualization by K. Döös (Soomere et al. 2011a)
alternatively, the properties of the Eulerian flow field) are known (e.g., Korotenko
et al. 2010). The studies cover a wide range of applications, from a verification
of the classical circulation models beyond that offered in an Eulerian assessment
(Ohlmann and Mitarai 2010) up to intricate statistical models of oil spill propagation based on a large number of propagation scenarios (Abascal et al. 2010), evaluation systems based on simulating the transport of the underlying contaminant or
toxic algae (Chrastansky and Callies 2009; Havens et al. 2010) or forecasting search
areas using ensemble modelling (Melsom et al. 2012). Following the widely used
approach in atmospheric sciences (e.g., Lin et al. 2004; Witham and Manning 2007),
the analysis of Lagrangian trajectories is now increasingly used for the restoration of
the link between the source and impact areas of pollution in the marine environment
(Chrastansky et al. 2009, among others).
9.3.2 Circulation Models
A detailed study of reasonable parameters and temporal and spatial scales of the calculations of Lagrangian trajectories, suitable for highlighting semi-persistent current
patterns in the Gulf of Finland, is presented in Viikmäe et al. (2010), Soomere et al.
(2011a). They used the surface-layer velocity fields from 3D current velocity data
simulated for 1987–1991. This time period matches the one used in earlier circulation simulations (Andrejev et al. 2004a, 2004b) and was also used in a subsequent
series of studies into properties of probability distributions for coastal hits (events