Emissions Working Group: Difference between revisions

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<u>The purpose of this Working Group</u> is to provide a forum to discuss current and new developments in GEOS-Chem associated with land-atmosphere and ocean-atmosphere sources, sinks, and fluxes of trace gases and aerosols.
<u>The purpose of this Working Group</u> is to provide a forum to discuss current and new developments in GEOS-Chem associated with land-atmosphere and ocean-atmosphere sources, sinks, and fluxes of trace gases and aerosols.


All users interested in adding/updating the GEOS-Chem emissions inventories are encouraged to subscribe to the emissions email list (click on the link in the [[#Contact information|contact information section]] below).
All users interested in adding/updating the GEOS-Chem emissions inventories are encouraged to subscribe to the emissions email list (click on the link in the [[#Primary Working Group Contacts|contact information section]] below).


== Primary Working Group Contacts ==
== Contact Information ==


{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
|-
|-valign="top"
|'''Sources and Sinks Working Group Co-Chairs'''
!width="300px" bgcolor="#CCCCCC"|Emissions and Deposition<br>Working Group Co-Chairs
|[http://www.atmos.pku.edu.cn/acm/contact.html Jintai Lin] and [http://www.tsinghua.edu.cn/publish/cessen/5346/2010/20101226113024726624747/20101226113024726624747_.html Qiang Zhang]
|width="600px"|
|-
*[https://sites.uw.edu/jaegle/ Lyatt Jaegl&eacute;] (Github: [https://github.com/jaegle @jaegle])
|'''Sources and Sinks Working Group email list'''
*[http://faculty.pku.edu.cn/linjintai/en/index.htm Jintai Lin]
|<tt>geos-chem-emissions [at] seas.harvard.edu</tt>
*[http://maraisresearchgroup.co.uk/ Eloise Marais] (GitHub: [https://github.com/eamarais @eamarais])
|-
 
|'''To subscribe to email list'''
|-valign="top"
|Send email to <tt>geos-chem-emissions-join [at] seas.harvard.edu</tt>
!bgcolor="#CCCCCC"|Emissions and Deposition<br>Working Group email list
|-
|<tt>geos-chem-emissions [at] g.harvard.edu</tt>
|'''To unsubscribe from email list'''
 
|Send email to <tt>geos-chem-emissions-leave [at] seas.harvard.edu</tt>
|-valign="top"
!bgcolor="#CCCCCC"|To subscribe to email list
|Either
*Send an email to <tt>geos-chem-emissions+subscribe [at] g.harvard.edu</tt>
Or
*Go to the [https://groups.google.com/a/g.harvard.edu/forum/#!forum/geos-chem-emissions GEOS-Chem Emissions and Deposition Google Group]
*Click on '''Subscribe to this group'''
 
|-valign="top"
!bgcolor="#CCCCCC"|To unsubscribe from email list
|Either
*Send an email to <tt>geos-chem-emissions+unsubscribe [at] g.harvard.edu</tt>
Or
*Go to the [https://groups.google.com/a/g.harvard.edu/forum/#!forum/geos-chem-emissions GEOS-Chem Emissions and Deposition Google Group]
*Click on the '''My Settings''' button
*Click on '''Leave this group'''
|}
|}


== Who's doing what and where? [Current GEOS-Chem Research Projects on Sources and Sinks] ==
== Current Projects (please add yours!) ==
{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
|- bgcolor="#cccccc"
|- bgcolor="#cccccc"
Line 28: Line 43:
!width="100px"|Date Added
!width="100px"|Date Added
|-
|-
|Dalhousie
|GEOS-Chem Support Team
|Top-down constraints on surface NOx emissions
|Ongoing development of the [http://hemco.readthedocs.io Harmonized Emissions Component (HEMCO)]
|[mailto:mcooper@dal.ca Matthew Cooper]
|[mailto:geos-chem-support@g.harvard.edu GCST]
|27 April 2011
|June 2022
|-
|-
|Harvard
|Georgia Tech (USA)
|Methane sources in the Arctic
|Global anthropogenic emissions of HCl and particulate chloride (1960-2014)
|[mailto:cpickett@as.harvard.edu Christopher Pickett-Heaps]
|[mailto:pengfei.liu@eas.gatech.edu Pengfei Liu]
|
|January 2021
|-
|Harvard
|Mechanistic Lightning Parameterization
|[mailto:ltmurray@fas.harvard.edu Lee Murray]
|
|-
|JPL
|Comparison of adjoint and mass balance for NOx emissions
|[mailto:changsub.shim@jpl.nasa.gov Changsub Shim]
|
|-
|U. East Anglia
|COS Emissions
|[mailto:P.Suntharalingam@uea.ac.uk Parvadha Suntharalingam]
|
|-
|-
|U. Edinburgh
|University of York
|Biogenic VOC emissions from tropical ecosystems
|Updated oceanic emissions of HOI and I2
|[mailto:michael.barkley@ed.ac.uk Michael Barkley]
|[mailto:ryan.pound@york.ac.uk Ryan Pound]
|
|August 2023
|-
|U. Edinburgh
|Regional methane sources using surface in situ and GOSAT and IASI satellite observations and an ensemble Kalman filter
|[mailto:ac.fraser@ed.ac.uk Annemarie Fraser]
|
|-
|U. Edinburgh
|Quantifying the impact of boreal biomass burning emissions on tropospheric oxidant chemistry
|[mailto:mark.parrington@ed.ac.uk Mark Parrington]
|
|-
|U. Eindhoven
|Constraining ship emissions using OMI NO2 observations / Soil NOx emissions
|[mailto:g.c.m.vinken@tue.nl Geert Vinken]
|21 June 2012
|-
|U. Toronto / Env Canada
|CO2 sources and sinks (fossil fuels including shipping/aviation, biosphere, ocean, etc.)
|[mailto:ray.nassar@ec.gc.ca Ray Nassar]
|
|-
|U. Toronto
|Adjoint analysis of CO sources from MOPITT
|[mailto:zjiang@atmosp.physics.utoronto.ca Zhe Jiang]
|
|-
|Peking University
|Top-down constraints on Asia VOCs
|[mailto:tmfu@pku.edu.cn May Fu]
|
|-
|Peking University
|Air-sea exchange and top-down constraints on global acetone
|[mailto:tmfu@pku.edu.cn May Fu]
|29 April 2011
|-
|CSU
|IASI constraints on NHx
|[mailto:heald@atmos.colostate.edu Colette Heald]
|
|-
|Tsinghua University
|Bottom-up/top-down anthropogenic inventory over East Asia
|[mailto:qiangzhang@tsinghua.edu.cn Qiang Zhang]
|
|-
|CU Boulder
|Top-down constraints on NH3
|[mailto:julietboulder@gmail.com Juliet Zhu]
|
|-
|US EPA
|Top-down constraints on NO2
|[mailto:Pye.Havala@epamail.epa.gov Havala Pye]
|
|-
|U. Nebraska Lincoln
|Top-down constraints on aerosols over Asia using MODIS
|[mailto:xxu@huskers.unl.edu Richard Zu]
|
|-
|Peking University
|Natural sources (soil, lightning, bb) of NOx over China: top-down vs bottom-up
|[mailto:linjt@pku.edu.cn Jintai Lin]
|01 Nov 2010
|-
|UW
|Snow NOx source in Greenland and Antarctica
|[mailto:beckya@uw.edu Becky Alexander]
|07 May 2015
|}
|}


== Ongoing GEOS-Chem Developments Related to Sources and Sinks (please add yours!) ==
== Top-down Findings Germane to GEOS-Chem Inventories (please add yours!) ==


Here is the list of updates that are slated to be added to GEOS-Chem in the next few releases:
Science findings from top-down studies that have implications for inventories used in GEOS-Chem (e.g., an inferred high or low bias or other such issue) can be compiled in [[Inventory Findings|this table]]. Please add any findings, either from your group or from other groups, that you feel the GEOS-Chem community should be aware of in using these inventories.


{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
|- bgcolor="#cccccc"
|- bgcolor="#cccccc"
!width="400"|Update
!width="400"|Species
!width="200"|Authors
!width="200"|Authors
!width="400"|Planned release
!width="400"|Reference
 
|-valign="top"
|[[HEMCO|HEMCO emissions component]]
|Christoph Keller (Harvard)
|
*Implemented into [[GEOS-Chem v10-01]]
 
|-valign="top"
|[[MEGAN_biogenic_emissions#Update_to_MEGAN2.1_.28Guenther_et_al..2C_2012.29|Update to MEGAN2.1]]
|Dylan Millet (Minnesota)
|
*Slated for [[GEOS-Chem v10-01]]
*We will incorporate this update via [[HEMCO]]
 
|-valign="top"
|[[MEGAN biogenic emissions]]
|Michael Barkley (Leicester)
|
*Updates ongoing


|-valign="top"
|-valign="top"
|Daily anthropogenic emissions broken down by sector from the EPA NEI2008 inventory
|Monthly NOx emissions for East Asia (2005-2012)
|Katie Travis (Harvard)
|Zhen Qu (CU Boulder)
|
|
*Added to the SEAC4RS research version of GEOS-Chem
[https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2016JD025852 Qu et al., 2017]
*We will incorporate this update via [[HEMCO]]


|-valign="top"
|-valign="top"
|[[Biomass_burning_emissions#FINNv1|FINNv1 biomass burning emissions]]
|High-resolution (5 km or finer) NOx emissions for China and surrounding areas (2004-present)
|Jenny Fisher (Wollongong)<br>Min Huang (JPL)
|
|
*Included in [[GEOS-Chem v10-01]] via [[HEMCO]]
[http://www.pku-atmos-acm.org/ Jintai Lin (Peking University)]
 
|-valign="top"
|Updated Southeast Asian emissions for SEAC4RS
|Jenny Fisher (Wollongong)<br>Patrick Kim (Harvard)
|
*Updates ongoing
 
|-valign="top"
|Australian anthropogenic emissions
|Jenny Fisher (Wollongong)
|
|
*Updates ongoing
[https://acp.copernicus.org/articles/19/12835/2019/ Kong et al., ACP, 2019]
[https://pubs.acs.org/doi/full/10.1021/acs.est.1c07723 Kong et al., EST, 2022]


|}
|}


--[[User:Bmy|Bob Y.]] 18:55, 14 January 2015 (EST)
== Available Emission Inventories ==
 
== Recent GEOS-Chem Updates Related to Sources and Sinks ==
 
We have added the following updates pertaining to sources and sinks to recent GEOS-Chem versions:
 
{| border=1 cellspacing=0 cellpadding=5
|-bgcolor="#CCCCCC" valign="top"
!width="75px"|Version
!width="75px"|Released
!width="550px"|Description
!width="250px"|Contact
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Soil NOx emissions#Updated soil NOx emissions algorithm|New soil NOx emission module]]
|Rynda Hudman Kay (EPA)<br>Neil Moore (formerly of Dalhousie)<br>Bram Maasakkers (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Mercury#Nested-grid Hg simulation over North America|EPA/NEI05 North American Hg emissions]]
|Yanxu Zhang (U. Washington)<br>Lyatt Jaegl&eacute; (U. Washington)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Mercury#Streets future Hg emissions|Hg anthropogenic emissions options for the year 2006 or 2050 following SRES scenarios A1B, A2, B1, and B2 from Streets et al. 2009.]]
|Bess Corbitt (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in_v9-02|Updated NH3 seasonal scaling factors over the US]]
|Lin Zhang (PKU)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Anthropogenic emissions#CAC|Updated Canadian NH3 inventory]]
|Wai-Ho Lo (Dalhousie)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Wet_deposition#Bug_in_Henry.27s_constant|Bug in wet deposition Henry's constant]]
|Fabien Paulot (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[GEOS-Chem_v9-02#Bug fixes in_biofuel_mod.F and emfossil.F|Fix diurnal NOx scale factors and fix double counting of biofuels over Mexico, Canada, and Europe]]
|Christoph Keller (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Ship emissions#Bugs in ship emissions and non-local PBL mixing|Correct bugs in ship emissions w/ non-local PBL mixing]]
|Chris Holmes (UC Irvine)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[GEOS-Chem v9-02#Bug fixes in day-of-week computation|Bug fixes in day-of-week computation]]
|[[GEOS-Chem Support Team]]
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Historical and Future Emissions#RCP future emission scenarios|RCP future emission scenarios]]
|Chris Holmes (UC Irvine)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[CH4 simulation#Update CH4 emissions to EDGAR v4.2|EDGAR v4.2 emissions for CH4 simulation]]
|Kevin Wecht (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Scale factors for anthropogenic emissions|Update anthropogenic scale factors through 2010]]
|Aaron van Donkelaar (Dalhoisie)


|-valign="top"
Archive of default and optional inventories for each model version: http://wiki.seas.harvard.edu/geos-chem/index.php/HEMCO_data_directories
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Biomass burning emissions#Update GFED3 emissions to 2011|Update GFED3 emissions to 2011]]
|Prasad Kasibhatla (Duke)


|-valign="top"
Narrative description of the latest version of the model with relevant emission inventory references: https://geos-chem.seas.harvard.edu/geos-chem-narrative#emis
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Aircraft emissions#MIT aviation emissions inventory|AEIC aircraft emissions inventory]]
|Sebastian Eastham (MIT)<br>Steven Barrett (MIT)


|-valign="top"
== Discussions ==
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[Dry deposition#Error in definition of RIP and IEPOX drydep species|Fix molecular weights of RIP and IEPOX used in drydep_mod.F]]
|[[GEOS-Chem Support Team]]
 
|-valign="top"
|[[GEOS-Chem v9-02|v9-02]]
|Mar 2014
|[[EPA/NEI05 North American emissions#Bug fix for NEI2005 SO4 emissions in sulfate_mod.F|Bug fix for NEI2005 SO4 emissions in sulfate_mod.F]]
|Jenny Fisher (U. Wollongong)
 
|-valign="top"
|[[GEOS-Chem v9-01-03|v9-01-03]]
|Sep 2012
|[[Acetone|Improved acetone simulation]]
|Emily Fischer (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-01-03|v9-01-03]]
|Sep 2012
|[[Biogenic emissions#Retirement of obsolete GEIA biogenic emissions|Complete shift of biogenic VOC emissions from GEIA to MEGAN; retire GEIA]]
|Dylan Millet
 
|-valign="top"
|[[GEOS-Chem v9-01-03|v9-01-03]]
|Sep 2012
|[[Dry deposition#OVOCs dry deposition|OVOC's dry deposition]]
|Jingqiu Mao (NOAA/GFDL)
 
|-valign="top"
|[[GEOS-Chem v9-01-03|v9-01-03]]
|Sep 2012
|[[#Available Historical and Future Emissions|Historical emission inventories of SO2, NOx, BC, and POA]]
|Eric Leibensperger (MIT)
 
|-valign="top"
|[[GEOS-Chem v9-01-03|v9-01-03]]
|Sep 2012
|[[Ship emissions#PARANOX_ship_plume_model|PARANOX model for evolution of ship exhaust plumes]]
|Geert Vinken (Eindhoven)
 
|-valign="top"
|[[GEOS-Chem v9-01-03|v9-01-03]]
|Sep 2012
|Improved [[Wet deposition#Add scavenging by snow|snow scavenging]] and [[Wet deposition#Updates for aerosol scavenging efficiency|washout parameterization]]
|Qiaoqiao Wang (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-01-03|v9-01-03]]
|Sep 2012
|[[Lightning NOx emissions|Constraining the lightning NOx source with satellite data]]
|Lee  Murray (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-01-03|v9-01-03]]
|Sep 2012
|[[Regridding in GEOS-Chem#Modification of MAP_A2A for use within GEOS-Chem|MAP_A2A algorithm to regrid emissions on the fly]]
|Prasad Kasibhatla (Duke)<br>Matt Cooper (Dalhousie)
 
|-valign="top"
|[[GEOS-Chem v9-01-03|v9-01-03]]
|Sep 2012
|[[Scale factors for anthropogenic emissions#Anthropogenic NOx scaling factors from OMI|Anthropogenic NOx scaling factors from OMI]]
|Lok Lamsal (NASA)<br>Matt Cooper (Dalhousie)
 
|-valign="top"
|[[GEOS-Chem v9-01-02|v9-01-02]]
|Nov 2011
|[[Mercury#Anthropogenic Emissions|GEIA 2005 Hg emissions]]
|Bess Corbitt (Harvard)<br>Noelle Selin (MIT)
 
|-valign="top"
|[[GEOS-Chem v9-01-02|v9-01-02]]
|Nov 2011
|[[EPA/NEI05_North_American_emissions#Biofuel_emissions|Bug fix for biofuel emissions when using EPA/NEI05]]
|[[GEOS-Chem Support Team]]
 
|-valign="top"
|[[GEOS-Chem v9-01-02|v9-01-02]]
|Nov 2011
|[[Biomass burning emissions#GFED3|Update to GFED3 biomass burning]]
|[mailto:psk9@duke.edu Prasad Kasibhatla] (Duke)
 
|-valign="top"
|[[GEOS-Chem v9-01-02|v9-01-02]]
|Nov 2011
|[[Implementation of RETRO Anthropogenic Emissions|Anthropogenic VOCs]]
|[mailto:dbm@umn.edu Dylan Millet] (UMN)
 
|-valign="top"
|[[GEOS-Chem v9-01-02|v9-01-02]]
|Nov 2011
|[[Anthropogenic_emissions#Streets_2000|Added seasonality to Streets NH3 emissions over Asia]]
|[mailto:jafisher@fas.harvard.edu Jenny Fisher] (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-01-01|v9-01-01]]
|May 2011
|Updated Hg simulation
||Bess Corbitt (Harvard)<br>Jenny Fisher (Harvard)<br>Helen Amos (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-01-01|v9-01-01]]
|May 2011
|[[EPA/NEI05_North_American_emissions#Biofuel_emissions|Bug fix for biofuel emissions when using EPA/NEI05]]
|[[GEOS-Chem Support Team]]
 
|-valign="top"
|[[GEOS-Chem v9-01-01|v9-01-01]]
|May 2011
|Bug fixes for [[Ship emissions#Bug for ship emissions in emfossil.f|ship emissions]] and [[Ship emissions#Inconsistent mask file for EMEP ship emissions|EMEP ship emissions mask file]]
|[[GEOS-Chem Support Team]]
 
|-valign="top"
|[[GEOS-Chem v9-01-01|v9-01-01]]
|May 2011
|[http://seas.harvard.edu/~ltmurray/LNOx.v9-01-01.Release.Notes.pdf Updated lightning parameterization and fix for cloud-top-height algorithm]
|L. Murray, Harvard
 
|-valign="top"
|[[GEOS-Chem v9-01-01|v9-01-01]]
|May 2011
|[[Volcanic SO2 emissions from Aerocom#Data for v9-01-01 and newer versions|Updated volcanic SO2 emissions from Aerocom]]
| J. Fisher (Harvard)
 
|-valign="top"
|[[GEOS-Chem v9-01-01|v9-01-01]]
|May 2011
|[http://acmg.seas.harvard.edu/geos/wiki_docs/deposition/v9-01-01_wetdep.pdf Updated wet scavenging and convective updraft scavenging algorithms] and<br>[[Wet deposition#Allow both washout and rainout when precipitation forms|Allow both washout and rainout when precipitation forms]]
|H. Amos (Harvard)<br>Bess Corbitt (Harvard)<br>Q. Wang (Harvard)
 
|-valign="top"
|[[GEOS-Chem v8-03-02|v8-03-02]]
|Sep 2010
|[[CO2_simulation| Updated CO2 Emissions]]
|R. Nassar, Environment Canada
 
|-valign="top"
|[[GEOS-Chem v8-03-01|v8-03-01]]
|May 2010
|[[Scale factors for anthropogenic emissions| Extension of annual anthropogenic scale factors to 2006]]
|A. van Donkelaar, Dalhousie
 
|-valign="top"
|[[GEOS-Chem v8-03-01|v8-03-01]]
|May 2010
|EMEP emissions extended to 2007 and seasonality extended to SOx, CO, and NH3
|A. van Donkelaar, Dalhousie
 
|-valign="top"
|[[GEOS-Chem v8-03-01|v8-03-01]]
|May 2010
|Emissions for Nested NA/EU Simulations [[GEOS-Chem nested grid simulations|Nested Grid]]
|A. van Donkelaar, Dalhousie
 
|-valign="top"
|[[GEOS-Chem v8-03-01|v8-03-01]]
|May 2010
|Emissions for Global 1 x 1.25 simulation capability
|L. Lamsal, Dalhousie
 
|-valign="top"
|[[GEOS-Chem v8-03-01|v8-03-01]]
|May 2010
|[[Secondary organic aerosols#Speciated biogenic emissions from MEGAN|Speciated biogenic emissions from MEGAN v2.1 now used in SOA code]]
|H. Pye, Caltech
 
|-valign="top"
|[[GEOS-Chem v8-02-04|v8-02-04]]
|Feb 2010
|[[EPA/NEI05 North American emissions|EPA/NEI2005 regional emissions inventory for North America]]
|P. Le Sager (formerly Harvard),<br>A. van Donkelaar (Dalhousie)
 
|-valign="top"align="center"
|[[GEOS-Chem v8-02-04|v8-02-04]]
|Feb 2010
|[[MEGAN biogenic emissions#MEGAN in GEOS-Chem v8-02-04 and later versions|MEGAN v2.1 biogenic emissions]]
|Mike Barkley, Edinburgh
 
|-valign="top"
|[[GEOS-Chem v8-02-04|v8-02-04]]
|Feb 2010
|[[Volcanic SO2 emissions from Aerocom|Updated inventory of volcanic SO2 emissions from AeroCom]]
|Jenny Fisher, Harvard
 
|-valign="top"
|[[GEOS-Chem v8-02-03|v8-02-03]]
|Oct 2009
|[[Ship emissions#ICOADS|ICOADS ship emissions]]
|Chulkyu Lee, Dalhousie
 
|-valign="top"
|[[GEOS-Chem v8-02-03|v8-02-03]]
|Oct 2009
|[[Lightning NOx emissions#Updated OTD.2FLIS local redistribution for GEOS-5|Updated OTD/LIS redistribution factors for GEOS-5]]
|Lee Murray, Harvard
 
|-valign="top"
|[[GEOS-Chem v8-02-02|v8-02-02]]
|Jun 2009
|[[#Error in the Bond BC/OC emissons|BOND inventory for BC and OC with monthly variations]]
|Eric Leibensperger, Harvard
 
|}
 
--[[User:Melissa Payer|Melissa Sulprizio]] 10:43, 17 January 2014 (EST)
 
== Discussions Related to Sources and Sinks (please add!) ==


#[[Scale factors for anthropogenic emissions]]
#[[Scale factors for anthropogenic emissions]]
#[[Carbon_Gases_and_Organics_Working_Group#GEIA_anthropogenic_scaling_factors | GEIA Anthropogenic Scaling Factors]]
== Isoprene Emission Estimates in the Literature ==
'''
'''Recent Papers'''
'''Evaluation of the global oceanic isoprene source and its impacts on marine organic carbon aerosol'''. Arnold SR, Spracklen DV, Williams J, Yassaa N, Sciare J, Bonsang B, Gros V, Peeken I, Lewis AC, Alvain S, Moulin C. ATMOSPHERIC CHEMISTRY AND PHYSICS, Volume: 9, Issue: 4, Pages: 1253-1262, Published: 2009. We have combined the first satellite maps of the global distribution of phytoplankton functional type and new measurements of phytoplankton-specific isoprene productivities, with available remote marine isoprene observations and a global model, to evaluate our understanding of the marine isoprene source and its impacts on organic aerosol abundances. Using satellite products to scale up data on phytoplankton-specific isoprene productivity to the global oceans, we infer a mean "bottom-up" oceanic isoprene emission of 0.31 +/- 0.08 (1 sigma) Tg/yr. By minimising the mean bias between the model and isoprene observations in the marine atmosphere remote from the continents, we produce a "top-down" oceanic isoprene source estimate of 1.9 Tg/yr. We suggest our reliance on limited atmospheric isoprene data, difficulties in simulating in-situ isoprene production rates in laboratory phytoplankton cultures, and limited knowledge of isoprene production mechanisms across the broad range of phytoplankton communities in the oceans under different environmental conditions as contributors to this difference between the two estimates. Inclusion of secondary organic aerosol (SOA) production from oceanic isoprene in the model with a 2% yield produces small contributions (0.01-1.4%) to observed organic carbon (OC) aerosol mass at three remote marine sites in the Northern and Southern Hemispheres. Based on these findings we suggest an insignificant role for isoprene in modulating remote marine aerosol abundances, giving further support to a recently postulated primary OC source in the remote marine atmosphere.
For current discussions of isoprene oxidation in the literature, please see our [[Isoprene|Isoprene: Recent Papers]] page.
== Available Historical and Future Emissions ==
Please visit our [[Historical and Future Emissions|Historical and Future Emissions wiki page]] for the latest information about the historical and future emissions, including any bug fixes or updates.
--[[User:Melissa Payer|Melissa Payer]] 15:53, 9 January 2013 (EST)

Latest revision as of 18:20, 24 October 2023

The purpose of this Working Group is to provide a forum to discuss current and new developments in GEOS-Chem associated with land-atmosphere and ocean-atmosphere sources, sinks, and fluxes of trace gases and aerosols.

All users interested in adding/updating the GEOS-Chem emissions inventories are encouraged to subscribe to the emissions email list (click on the link in the contact information section below).

Contact Information

Emissions and Deposition
Working Group Co-Chairs
Emissions and Deposition
Working Group email list 		geos-chem-emissions [at] g.harvard.edu
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Current Projects (please add yours!)

User Group Description Contact Person Date Added
GEOS-Chem Support Team Ongoing development of the Harmonized Emissions Component (HEMCO) GCST June 2022
Georgia Tech (USA) Global anthropogenic emissions of HCl and particulate chloride (1960-2014) Pengfei Liu January 2021
University of York Updated oceanic emissions of HOI and I2 Ryan Pound August 2023

Top-down Findings Germane to GEOS-Chem Inventories (please add yours!)

Science findings from top-down studies that have implications for inventories used in GEOS-Chem (e.g., an inferred high or low bias or other such issue) can be compiled in this table. Please add any findings, either from your group or from other groups, that you feel the GEOS-Chem community should be aware of in using these inventories.

Species Authors Reference
Monthly NOx emissions for East Asia (2005-2012) Zhen Qu (CU Boulder)

Qu et al., 2017

High-resolution (5 km or finer) NOx emissions for China and surrounding areas (2004-present)

Jintai Lin (Peking University)

Kong et al., ACP, 2019 Kong et al., EST, 2022

Available Emission Inventories

Archive of default and optional inventories for each model version: http://wiki.seas.harvard.edu/geos-chem/index.php/HEMCO_data_directories

Narrative description of the latest version of the model with relevant emission inventory references: https://geos-chem.seas.harvard.edu/geos-chem-narrative#emis

Discussions

  1. Scale factors for anthropogenic emissions
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