Liverpool Bay, Irish Sea Models (POL Coastal Observatory)
The POL coastal observatory modelling suite.
Domain
Irish Sea, Liverpool Bay
PHYSICS
Calculation Code
POLCOMS
Output frequency
Hourly
Horizontal grid
- Irish Sea: 1.8km;
- Liverpool Bay: 200m
Vertical grid
- 34 Irish sea,
- 20 LB s-coordinate vertical levels
Bathymetry
NOOS
Surface Forcings
- 3-hourly cloud cover, 10m wind, air temperature, specific humidity and precipitation from North Atlantic European atmos. Met Office NWP model.
- Surface forcing bulk formulae will be changed to use the COARE v3 parameterization.
Boundary Conditions
- Temperature, salinity, residual currents and SSH from the Met Office MRCS POLCOMS-ERSEM.
- include data from real-time river flows as available.
- (consider) using the climatological inherent optical properties (IOP) derived from SeaWifs to improve penetration of short wave radiation.
Lateral Friction
No slip
Bottom Friction
quadratic ‘law of the wall’
Horizontal Diffusion for the Dynamics/Tracers
Smagorinsky
Advection scheme
Piecewise parabolic method
Vertical Mixing
Turbulence model updated from the GOTM framework (k-e).
Tide
Yes
BIOLOGY
Calculation Code
ERSEM will be added to the IRS model.
State Variables
100 state variables, including: - 4 phytoplankton groups,
- 3 zooplankton groups,
- pelagic bacteria,
- 5 benthic organisms,
- 2 benthic decomposers,
- 2 DOM groups,
- 3 POM groups,
- 5 nutrients,
- oxygen and carbon dioxide.
Processes
Simulation of both pelagic and benthic nutrient-phytoplankton-zooplankton-decomposer dynamics using carbon as its basic unit of currency although the cycling of oxygen and the nutrients, nitrogen, phosphorous and silicate are also calculated.
Light Formulation
SPM model described by Holt & James (1999) or SeaWiFs derived IOPs
Boundary Conditions
Mean annual cycle of the AMM model run with POLCOMS-ERSEM.
