Global Terrestrial Mercury Model

Overview

The Global Terrestrial Mercury Model (GTMM) ...

Authors and collaborators:

• Nicole Smith-Downey (U. Austin) -- Principal Investigator
• Chris Holmes (Harvard)
• Bess Corbitt (Harvard)
• Helen Amos (Harvard)

Implementation notes

GTMM is currently being implemented into GEOS-Chem v8-03-02.

Validation

Text to be added

Documentation

Please see the GTMM user's manual for information about how to compile and run GEOS-Chem with GTMM.

More information in the GEOS-Chem user guide Appendix 8: http://acmg.seas.harvard.edu/geos/doc/man/

Notes

See Smith-Downey et al. 2010 for description of the simulation.

The input files provided with the code are those described by the Smith-Downey paper. The mercury deposition comes from the Selin et al. 2008 version of the atmospheric mercury simulation. Meteorology inputs are from GEOS-4. If a user wishes to run the model with the v8-03-02 version of the code (Holmes et al. 2010, Soerensen et al. 2010), then a new spin-up from the preindustrial with new input files is recommended. Contact corbitt [at] seas [dot] harvard [dot] edu for more information. (I've done a preliminary spin-up and coupled run using v8-03-02 mercury deposition inputs, but have not redone the meteorology inputs with GEOS-5 yet - eds)

At this point, running the GTMM coupled online to GEOS-Chem will result in higher TGM values than are observed due to the higher soil emissions than in the previous simulation with 2D soil (Selin et al. 2008a). This is an area of ongoing development (eds, nvd).