Carbon Cycle Working Group
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All users interested in the GEOS-Chem carbon gas simulations (CO, CO2, CH4, etc.) are encouraged to subscribe to the carbon gases email list (click on the link in the contact information section below).
Contact information
| Carbon Cycle Working Group Co-Chairs | Kevin Bowman, Dylan B.A. Jones |
| Carbon Cycle Working Group email list | geos-chem-carbon [at] seas.harvard.edu |
| To subscribe to email list | Send email to geos-chem-carbon-join [at] seas.harvard.edu |
| To unsubscribe from email list | Send email to geos-chem-carbon-leave [at] seas.harvard.edu |
Current Carbon Cycle Projects (please add yours!)
| Simulation | User Group | Description | Contact Person | Date Added |
|---|---|---|---|---|
| Projects using CH4 simulations | ||||
| Methane | U. Edinburgh | Regional methane sources using surface in situ and GOSAT and IASI satellite observations and an ensemble Kalman filter | Annemarie Fraser | 10 Jun 2009 |
| Methane | Harvard | Methane sources and sinks based on in situ and satellite observations | Kevin Wecht | 12 May 2011 |
| Methane | Harvard | Inverse modeling of methane with GOSAT | Alex Turner | 7 May 2013 |
| Methane | Purdue University | Methane sources in Pan-Arctic region | Zeli Tan | 26 Nov 2012 |
| Projects using CO and/or Tagged CO simulations | ||||
| Tagged CO | U. Wollongong | Source attribution of Australasian pollution | Jenny Fisher | 5 Nov 2012 |
| Tagged CO | Harvard | Using tagged CO simulation to study transport in the UT/LS | Junhua Liu | 12 May 2011 |
| Tagged CO | JPL | Using tagged CO simulations to interpret MLS observations | Jianjun Jin | 12 May 2011 |
| Tagged CO and full chemistry |
Duke | CO sources from biomass burning (NOTE: Cross-listed under full-chemistry) |
Prasad Kasibhatla | 15 Jun 2009 |
| Tagged CO | U. Toronto | Adjoint analysis of CO sources from MOPITT | Zhe Jiang | 09 Jun 2009 |
| Projects using CO2 simulations | ||||
| CO2 | Caltech | Source/sink estimation of CO2 using ground-based FTS observations | Janina Messerschmidt | 26 Sept 2011 |
| CO2 | UEA | CO2 flux inversions | ZhaoHui Chen | 1 Jul 2011
|
| CO2 | U. Edinburgh | Using GEOS-Chem for CO2 flux inversions | James Barlow | 12 May 2011 |
| CO2/Tagged CO | Harvard | Using CO/CO2 correlations for CO2 inverse modeling | Helen Wang | 12 May 2011
|
| CO2 | Tsinghua U. | Nested grid simulation to interpret surface CO2 observations | Yuxuan Wang | 12 May 2011 |
| CO2 | Environment Canada | CO2 modeling and source/sink estimation | Ray Nassar | 11 Apr 2011 |
| CO2 | U. Edinburgh | CO2 simulation and surface flux estimation by using Ensemble Kalman Filter | Liang Feng | 18 Aug 2010 |
| CO2/CO Adjoint | JPL | Source/state estimation of CO2 and CO using atmospheric CO2/CO satellite observations | Kevin Bowman | 28 Jun 2010 |
| CO2 | U. Toronto | Modeling CO2 and its sources and sinks with GEOS-Chem | Dylan Jones | 09 Jun 2009 |
| CO2 | IUP U. Bremen | Study the CO2 and OCS relationship using ground-based FTS observations and GEOS-Chem | Yuting Wang | 17 May 2014 |
--Bob Y. 15:41, 25 April 2014 (EDT)
Recently Completed Projects (please add yours!)
| Simulation | User Group | Description | Contact Person | Publication |
|---|---|---|---|---|
| Tagged CO | Harvard | Adjoint analysis of CO sources from MOPITT/AIRS/SCIAMACHY | Monika Kopacz | Atmos. Chem. Phys., 10, 855-876, 2010. PDF |
--Bob Y. 15:40, 25 April 2014 (EDT)
Development Priorities
| Priority | Description | Status |
|---|---|---|
| Update biospheric CO2 fluxes | Currently based on CASA (neutral biosphere) output for one particular year and a climatology of net terrestrial exchange. Running with year-specific fluxes from the SiB3 biospheric model will be a new option. | To be included in GEOS-Chem v10-01 |
| Update anthropogenic CO2 fluxes | Implement anthropogenic (fossil fuel combustion) CO2 emissions with higher temporal resolution and perhaps higher spatial resolution. | To be included in GEOS-Chem v10-01 |
| Update ocean CO2 fluxes | Currently using Takahashi et al. (2009) which gives too weak of a global sink. Look into possibilities for scaling or improved ocean fluxes from another source. | To be included in GEOS-Chem v10-01 |
| Tagged CO simulation | Improve treatment of secondary production of CO from VOC oxidation. Currently just scale emissions. Modify code to apply photochemical production rates archived from a full chemistry simulation. | |
| CO-CO2-CH4 simulation | Merge into a single offline simulation for the standard model. | |
| Improved satellite diagnostic | Implement more flexible diagnostic for saving out XCO2 and other satellite-relevant parameters. |
--Melissa Payer 10:36, 10 June 2013 (EDT) --Updated by Ray Nassar 2015 April 14, 16:58 (EDT)
Recent updates
The following development items have recently been added to GEOS-Chem:
| Version | Released | Description | Contact |
|---|---|---|---|
| v9-02 | Mar 2014 | EDGAR v4.2 emissions for CH4 simulation | Kevin Wecht (Harvard) |
--Melissa Sulprizio 11:08, 17 January 2014 (EST)
The following development items will soon be added to GEOS-Chem:
| Version | Released | Description | Contact |
|---|---|---|---|
| v10-01 | April 2015 (pending) | Simple Biosphere (SiB3) model balanced biosphere fluxes (2006-2010) for CO2 simulation | Ray Nassar (Environment Canada) |
| v10-01 | April 2015 (pending) | Scaled Takahashi et al. (2009) Ocean CO2 fluxes for 2000-2013 for CO2 simulation | Ray Nassar (Environment Canada) |
| v10-01 | April 2015 (pending) | ODIAC v2013 national fossil fuel combustion emissions for 2000-2014 for CO2 simulation | Ray Nassar (Environment Canada) |
| v10-01 | April 2015 (pending) | TIMES weekly and diurnal fossil fuel temporal scaling factors for CO2 simulation | Ray Nassar (Environment Canada) |
| v10-01 | April 2015 (pending) | Extended time range for CDIAC, chemical CO2 source, shipping and aviation scale factors for CO2 simulation | Ray Nassar (Environment Canada) |
--Ray Nassar 2015 April 14, 17:42 (EST)