Objective
To provide a contribution to the understanding of the phenomena related to man made environmental and climate problems. This will be done together with other JRC institutes (IRSA, EI) in a multidisciplinary effort, where IST contributes its expertise in fluid dynamics for modelling the marine ecosystems and the atmospheric chemical systems, which are subject of IRSA and EI projects. At the same time the sheduled modelling work is aimed to contribute to the solution of fluid dynamic and transport problems in the frame of the industrial Hazards programme of STI
Comparative application has been made of 3 different 3-dimensional models for describing the circulation pattern in the Northern Adriatic. The results of this study revealed a number of deficiencies for each of the models. Consequently, a new model, the ISPRA-MIX, has been developed which presently is ready to be applied to shallow waters as well as to coastal zones, including part of the deep water ocean beyond the continental shelf.
A Lagrangian model was developed describing the phytoplankton dynamics in the Adriatic Sea. After the first applications this work stopped due to the decision to discontinue the remote sensing activity to which it was related. A similar development is now underway for describing the phytoplankton dynamics in the North Adriatic upwelling zone near the north west African coast.
Progress to end 1991
Comparative application of 3 different 3D models for describing the circulation pattern in the Northern Adriatic. Model "1" has been developed by the "geohydrodynamics and Environmental Research" unit of the University Liege under contract with JRC in the period 1984-1987. Model "2", developed at the Oceanografic Institute of University Hamburg, was released to JRC for scientific applications in 1988. Model "3" originates from the Ruder-Boskovic-Institut in Zagreb. The results of this study revealed a number of deficiencies for each of these models. Consequently a new model, the "ISPRA-MIX", has been developed which presently is ready to be applied to shallow waters as well as to coastal zones, including part of the deep water ocean beyond the continental shelf.
Development of a Lagrangian model describing the phytoplankton dynamics in the Adriatic Sea. After the first applications this work was stopped in 1990 due to the decision to discontinue the remote sensing activity to which it was related. A similar development is now underway for describing the phytoplankton dynamics in the North Atlantic upwelling zone near the north-west African coast.
Detailed description of work foreseen in 1992 (expected results)
Proj. 1 : Further development of modelling techniques for fluid dynamics and transport processes.
For 1992 the following work is scheduled :
- development of a turbulence model for water flow applications
- development of a turbulence model for atmospheric applications
- completion of the development of a sea circulation model.
These activities are related to applications in the frame of the Industrial Hazards programme.
Proj. 2 : Modelling related to marine processes and remote sensing data assimilation (with IRSA, project Marine Ecosystem)
The objectives are to link remotely sensed sea surface conditions to bulk processes, and to provide for global change studies trace gas fluxes at the sea-atmosphere interface. Application area is the Eastern North Atlantic including the North West African upwelling area. For 1992 the following work is scheduled :
- Application of the hydrodynamic tool ISPRA-MIX and a 2- component biological productivity model presently under development, to a 2D offshore section typical for the NW African upwelling area.
- Adaptation of ISPRA-MIX for modelling the Eastern North Atlantic circulation pattern and first hydrodynamic test computations.
- Implementation of heat balance modules in ISPRA-MIX for computing the short wave radiation and absorption, the up- and downwelling long wave radiation, the sensible and latent heat flux.
- Feasibility study concerning the introduction of an 8-component DMS cycle, presently tested as zero-dimensional model, into the 3D ISPRA-MIX environment.
Proj. 3 : Modelling of the global 3D aerosol dynamics in the atmospheric sulphur cycle (with El, project Global Change)
The objective is to compute the global distribution of the number and size characteristics of the sulphate aerosol due to prescribed emission of SO2 and DMS for estimating the radiative climate forcing due to the aerosol, using as tool the global transport model MOGUNTIA released to JRC by MPI for Chemistry, Mainz.
For 1992 the following work is scheduled :
- Implementation of MOGUNTIA on an Ispra workstation and performance of test case computations referring to the sulphur cycle
- Feasibility study concerning the implementation of the zero- dimensional El aerosol model into the 3D MOGUNTIA environment.
Proj 4. Modelling of regional fresh and marine water quality (with El, project Soil toxic)
The objective is to compute regional eutrofication phenomena and algae blooms using ISPRA-MIX as hydrodynamic tool and a suitable (Langrangian or Eulerian) tool for the bio-chemical processes. Potential application areas are the Northern Adriatic and North Italian lakes.
For 1992 the following work is scheduled :
- Adaptation of the available tools to the specific applications to be specified by the El team and performance of computations.
Topic(s)
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Data not availableFunding Scheme
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21020 Ispra
Italy