Hg and POPs Working Group

All users interested in the GEOS-Chem mercury and persistent organic pollutant (POPs) simulations are encouraged to subscribe to the Hg and POPs email list (click on the link in the contact information section below).

Information on existing projects and future developments in aerosols will be posted here. We encourage user groups to keep their information up-to-date.

Contact information

Hg and POPs Working Group Co-Chairs	Lyatt Jaeglé and Noelle Selin
Hg and POPs Working Group email list	geos-chem-hg-pop@seas.harvard.edu
To subscribe to email list	Send email to geos-chem-hg-pop-join@seas.harvard.edu
To unsubscribe from email list	Send email to geos-chem-hg-pop-leave@seas.harvard.edu

Current GEOS-Chem Hg and POPs Projects (please add yours!)

User Group	Description	Contact Person	Date Added
UW	N. American nested grid Hg simulation development	Yanxu Zhang	05 Jul 2010
UW	Hg long-range transport and deposition over Alaska	Lyatt Jaeglé	05 Jul 2010
MIT	Development of a PAH and PCB simulation and assessment of climate change impacts on pathways to the Arctic	Noelle Selin and Carey Friedman	05 Jul 2010
MIT	Analysis of Wet Deposition and RGM to constrain Hg-Br chemistry	Noelle Selin and Amanda Giang	05 Jul 2010
MIT	Inverse modeling to constrain Hg sources	Noelle Selin and Shaojie Song	14 Mar 2011
Harvard	Hg continental-scale source-receptor relationships	Bess Sturges Corbitt	02 Aug 2010
Harvard	Hg coupled atmosphere-terrestrial exchange and future climate change simulations	Bess Sturges Corbitt	02 Aug 2010
Harvard	Historical Hg simulation with fully coupled atm-soil-ocean model (box model and GEOS-Chem).	Helen Amos	09 Mar 2011
Harvard	Hg cycling in the Arctic atmosphere-ocean-sea ice-snow	Jenny Fisher	04 May 2011
Harvard	Long-term (30-year) simulation of Arctic Hg	Jenny Fisher	04 May 2011
Harvard	Comparison of Hg simulations to observations of fluxes across the air-sea interface in the West Atlantic Ocean	Anne L. Soerensen	10 May 2011
Harvard	Updating the surface ocean representation with lateral flows, river input and methyl mercury species	Anne L. Soerensen	16 Nov 2011
Harvard	Fate of Hg released from products	Hannah Horowitz	22 Sep 2011
UCIrvine	Mercury isotope budget and processes	Christopher Holmes	31 Jan 2012
UCIrvine	Mercury processes in the tropics	Christopher Holmes	31 Jan 2012
Add yours here!

Recent GEOS-Chem updates related to Hg and POPs

The following development items have recently been added to GEOS-Chem:

Version	Released	Update	Author(s)
v9-01-03	TBD	Hg(II) gas-particle partitioning	Helen Amos (Harvard)
v9-01-03	TBD	Nested grid simulation over North America	Yanxu Zhang (UW)
v9-01-02	Nov 2011	Hg anthropogenic emissions options for the year 2006 or 2050 following SRES scenarios A1B, A2, B1, and B2 from Streets et al. 2009.	Bess Sturges Corbitt (Harvard)
v9-01-02	Nov 2011	Bug fixes impacting the Hg simulation: Bug fixes for the Hg simulation Further bug fixes for the Hg simulation Fix for vertical regridding of OH	Chris Holmes (UC Irvine) Team Hg GEOS-Chem Support Team

--Bob Y. 12:01, 28 November 2011 (EST)

On-going Hg and POPs Working Group Developments

Update	Contact	Status
Development of GEOS-5 0.5x0.667 nested grid Hg simulation over the N. American domain.	Yanxu Zhang (U. Washington)
Implement NEI 2005 Hg emission inventory over US	Yanxu Zhang (U. Washington)
Option to use GEOS-Chem Br/BrO fields from Justin Parrella.	Yanxu Zhang (U. Washington) Justin Parella (Harvard)
Implement improved bromine explosion emission and chemistry in the Arctic	Jenny Fisher (Harvard)
Implement improved snowpack reduction and re-emission in the Arctic	Jenny Fisher (Harvard)
Implement Hg source to Arctic Ocean from riverine inputs	Jenny Fisher (Harvard)

--Bob Y. 14:43, 25 October 2011 (EDT)

Issues / Topics for Discussion

More discussion of the Hg simulation (code, issues, diagnostics) can be found on the Mercury page.