The GMOS Mercury Modelling Task Force (GMOS MMTF) is a cooperative scientific initiative that arose from the regional and global modelling studies performed during the project phase of the GMOS program. The MMTF capitalises on the unique dataset being produced by the program to perfrom modelling studies and intercomparisons using a range of chemical transport models (CTMs), both regional and global, to improve the understanding of key atmospheric mercury processes, and to perform evaluations of present and future levels of mercury pollution and moost importantly mercury deposition to different ecosystems.
GMOS MMTF supports the UNEP Mercury Air Transport and Fate Research Partnership (UNEP F&T) and the Group on Earth Observation (GEO, Task HE-02-C1).
Participation in the Task Force is open to all experts involved in the model assessment of mercury fate and transport in the environment. So far the work of MMTF has been organised in the form of multi-model experiments aimed at answering particular scientific questions related to mercury atmospheric chemistry, speciation, anthropogenic and natural/secondary emissions.
The results all the simulations are available to the program partners on the GMOS SDI
A number of ad-hoc experiments to investigate the results obtained during aircraft and oceanographic campaign have also been undertaken. The modelling simulations are ongoing to complement the continuing land-based measurements and will continue to provide support to future campaign based measurement initiatives. Currently three global models, GEOS-Chem (MIT), GLEMOS (MSC-East) and EHMERIT (CNR-IIA) and teo regional models, CMAQ-Hg (HZG) and WRF/Chem-Hg (CNR-IIA) are contributing.