Future GLOMAP developments
GLOMAP is continually being developed to include new processes. Here are some important features of the model we are currently working on or have planned.
MPI parallelisation
We currently use OpenMP. MPI parallelisation will enable us to run larger jobs on new supercomputers in the UK. GLOMAP-mode is now parallelised in OpenMP and MPI and runs on the Hector supercomputer. GLOMAP-bin is still only OpenMP and runs on the Leeds Everest nodes (max 16 processors). An MPI version of GLOMAP-bin should be complete by spring 2009.
Regional zoom capability
A regional zoom or grid nesting capability is currently being developed for the host CTM TOMCAT. We will be able to nest the grid in multiple stages down to 10's of km over specific regions. The advantage for GLOMAP is that we will be able to study processes that may act on smaller scales than hundreds of km, such as nucleation, cloud scavenging etc. This is an important model feature for the
ADIENT project.
Secondary organic aerosol
The kind of process that will probably be under development for many years. We're making a first attempt to incorporate a physically based organic aerosol scheme in collaboration with the University of Manchester through the
QUEST project.
Inorganic multicomponent composition
Through our
QUEST project we are also including a model for H/NH4/Na-SO4/NO3/Cl multicomponent particles. It is based on a new fast thermodynamic parameterisation from Dave Topping and Gordon McFiggans at Manchester, and involves calculating gas-aerosol partitioning in a kinetic way.
Coupling to full chemistry scheme
Currently we use only a simple reduced sulfur chemistry scheme. Work is underway by Tom Breider to add halogens and to couple GLOMAP to the full TOMCAT chemistry scheme. This model now works in GLOMAP-mode.
