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| | !width="300px" bgcolor="#CCCCCC"|Transport Working Group Co-Chairs | | !width="300px" bgcolor="#CCCCCC"|Transport Working Group Co-Chairs |
| | |width="600px"| | | |width="600px"| |
| − | *[mailto:andrea.m.molod@nasa.gov Andrea Molod] and | + | *[https://sciences.gsfc.nasa.gov/sed/bio/clara.orbe Clara Orbe] |
| − | *[http://research.nianet.org./~hyl/ Hongyu Liu] | + | *[https://www.cira.colostate.edu/staff/schuh-andrew/ Andrew Schuh] (Github: [https://github.com/aschuh @aschuh]) |
| | + | *[https://science.larc.nasa.gov/people/katherine-travis/ Katie Travis] (Github: [https://github.com/ktravis213 @ktravis213]) |
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| | *Click on '''Leave this group''' | | *Click on '''Leave this group''' |
| | |} | | |} |
| − |
| |
| − | --[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 18:38, 21 August 2015 (UTC)
| |
| | | | |
| | == Current GEOS-Chem Transport Projects (please add yours!) == | | == Current GEOS-Chem Transport Projects (please add yours!) == |
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| | !width="600px"|Description | | !width="600px"|Description |
| | !width="300px"|Contact Person | | !width="300px"|Contact Person |
| | + | |
| | + | |-valign="top" |
| | + | |NASA GMAO<br>Harvard |
| | + | |Model inter-comparison of transport (GEOS, GCHP, GCClassic) |
| | + | |Emma Knowland<br>Lizzie Lundgren |
| | | | |
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| | |Quantifying the impact of errors in PBL mixing on CO2 | | |Quantifying the impact of errors in PBL mixing on CO2 |
| | |[mailto:wlu@atmosp.physics.utoronto.ca Wei Lu] | | |[mailto:wlu@atmosp.physics.utoronto.ca Wei Lu] |
| − |
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| − | |-valign="top"
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| − | |Harvard
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| − | |Examining the effect of grid resolution on vertical transport and convective mass fluxes
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| − | |[mailto:karenyu@g.harvard.edu Karen Yu]
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| − |
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| − | |-valign="top"
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| − | |Harvard
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| − | |Quantifying the impact of numerical diffusion on plume transport and comparing to observed atmospheric diffusion
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| − | |[mailto:seastham@fas.harvard.edu Sebastian D. Eastham]
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| − |
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| − | |-valign="top"
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| − | |Harvard
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| − | |Assessing the co-benefits of increasing vertical and horizontal grid resolutions for tracer transport
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| − | |[mailto:jiaweizhuang@g.harvard.edu Jiawei Zhuang]
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| | | | |
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| | |NIA / NASA Langley | | |NIA / NASA Langley |
| | |Constraints on Precipitation Scavenging and Transport of Soluble Trace Species From Airborne and Surface Radionuclide (222Rn, 210Pb, 7Be, 10Be) Observations | | |Constraints on Precipitation Scavenging and Transport of Soluble Trace Species From Airborne and Surface Radionuclide (222Rn, 210Pb, 7Be, 10Be) Observations |
| − | |[mailto:bo.zhang@nianet.org Bo Zhang] [mailto:hongyu.liu-1@nasa.gov Hongyu Liu] | + | |[mailto:bo.zhang@nianet.org Bo Zhang]<br>[mailto:hongyu.liu-1@nasa.gov Hongyu Liu] |
| − | | + | |
| − | |-valign="top"
| + | |
| − | |Harvard
| + | |
| − | |Vertical resolution needs for GEOS-Chem global transport
| + | |
| − | |[[User:Ada Shaw|Ada Shaw]]
| + | |
| − | | + | |
| − | |-valign="top"
| + | |
| − | |Harvard<br>U. Toronto
| + | |
| − | |Re-diagnosed convection in off-line GEOS-Chem
| + | |
| − | |[[User:Bmy|Bob Yantosca]]<br>Tailong He
| + | |
| | | | |
| | |-valign="top" | | |-valign="top" |
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| | Text to be added | | Text to be added |
| − |
| |
| − | == Common set of transport tracers in GEOS-Chem and GEOS ==
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| − |
| |
| − | <span style="color:darkorange">'''''This update will be included in [[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]].'''''</span>
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| − |
| |
| − | The Transport Working Group proposed implementing additional tracers in GEOS-Chem for benchmarking purposes and for diagnosing transport in GEOS-Chem compared to GEOS-5. The [https://gmi.gsfc.nasa.gov/uploads/files/gmi_tracersuite.pdf GMI tracer suite] is implemented via the tracer gridded component "TR_GridComp" in GEOS. In GEOS-Chem, the tracer suite has been added as an extension of the [[Rn-Pb-Be simulation]] (simulation type "1") by default, but may be added to any GEOS-Chem simulations by following the [[#Implementation in GEOS-Chem|instructions below]].
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| − |
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| − | The current and future proposed transport tracers are summarized below.
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| − |
| |
| − | {| border=1 cellspacing=0 cellpadding=5
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| − | |-bgcolor="#CCCCCC"
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| − | !width="300px"|Tracer name in GEOS-Chem
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| − | !width="100px"|Tracer name in GEOS / GMI
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| − | !width="400px"|Description
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| − | !width="150px"|Version added
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| − |
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| − | |-valign="top"
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| − | |Rn222
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| − | |Rn222
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| − | |Radon-222 isotope
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| − | *See our Rn-Pb-Be wiki page for information on [[Rn-Pb-Be_simulation#Sources|sources]] and [[Rn-Pb-Be_simulation#Sinks|sinks]]
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| − | *Used to evaluate convection over land and strat-trop exchange
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| − | |[http://acmg.seas.harvard.edu/geos/geos_versions.html GEOS-Chem v2-02]
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| − |
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| − | |-valign="top"
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| − | |Pb210
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| − | |Pb210
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| − | |Lead-210 isotope
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| − | *See our Rn-Pb-Be wiki page for information on [[Rn-Pb-Be_simulation#Sources|sources]] and [[Rn-Pb-Be_simulation#Sinks|sinks]]
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| − | *Used to evaluate convection over land and strat-trop exchange
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| − | |[http://acmg.seas.harvard.edu/geos/geos_versions.html GEOS-Chem v2-02]
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| − |
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| − | |-valign="top"
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| − | |Pb210Strat
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| − | |Pb210Strat
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| − | |Lead-210 produces in the stratosphere
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| − | *See our Rn-Pb-Be wiki page for information on [[Rn-Pb-Be_simulation#Sources|sources]] and [[Rn-Pb-Be_simulation#Sinks|sinks]]
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| − | *Used to evaluate convection over land and strat-trop exchange
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |Be7
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| − | |Be7
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| − | |Beryllium-7 isotope
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| − | *See our Rn-Pb-Be wiki page for information on [[Rn-Pb-Be_simulation#Sources|sources]] and [[Rn-Pb-Be_simulation#Sinks|sinks]]
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| − | *Used to evaluate strat-trop exchange
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| − | |[http://acmg.seas.harvard.edu/geos/geos_versions.html GEOS-Chem v2-02]
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| − |
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| − | |-valign="top"
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| − | |Be7Strat
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| − | |Be7Strat
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| − | |Berylium-7 produced in the stratosphere
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| − | *Used to evaluate strat-trop exchange
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |Be10
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| − | |Be10
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| − | |Beryllium-10 isotope
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| − | *Used to evaluate strat-trop exchange
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |Be10Strat
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| − | |Be10Strat
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| − | |Beryllium-10 produced in the stratosphere
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| − | *Used to evaluate strat-trop exchange
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |PassiveTracer
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| − | |N/A
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| − | |Passive tracer with initial concentration of 100 ppb (no emissions or decay)
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| − | *Used to evaluate mass conservation in transport
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |SF6tracer
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| − | |SF6
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| − | |Sulfur hexafluoride with anthropogenic emissions from [[EDGAR_v4.2_anthropogenic_emissions|EDGAR v4.2]]
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| − | *Used to evaluate inter-hemispheric transport of anthropogenic emissions
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |CH3Itracer
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| − | |CH3I
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| − | |Methyl iodide with emissions over the oceans of 1 molec/cm2/s and a 5-day lifetime
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| − | *Used to evaluate marine convection
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |COAnthroEmis25dayTracer
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| − | |CO_25
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| − | |CO tracer with anthropogenic emissions from [[CEDS_anthropogenic_emissions|CEDS]] and a 25-day lifetime
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |COAnthroEmis50dayTracer
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| − | |CO_50
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| − | |CO tracer with anthropogenic emissions from [[CEDS_anthropogenic_emissions|CEDS]] and a 50-day lifetime
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |COUniformEmis25dayTracer
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| − | |Uniform
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| − | |CO tracer with uniform surface emissions of 2400 Tg/yr and a 25-day lifetime
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| − | *Used for evaluating tropospheric mixing
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |MaintainMixRatioGlobEmis90dayTracer
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| − | |e90
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| − | |Tracer emitted globally at the surface such that the mixing ratio is 100 ppbv and has a 90-day lifetime
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |MaintainMixRatioNHEmis90dayTracer
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| − | |e90_n
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| − | |Tracer emitted in the Northern Hemisphere at the surface such that the mixing ratio is 100 ppbv and has a 90-day lifetime
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |MaintainMixRatioSHEmis90dayTracer
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| − | |e90_s
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| − | |Tracer emitted in the Southern Hemisphere at the surface such that the mixing ratio is 100 ppbv and has a 90-day lifetime
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |Clock
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| − | |Clock
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| − | |Age of air [s]
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| − | *Used for evaluating residual circulation and mixing
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| − | *'''''Not implemented in GEOS-Chem as a tracer, but as a field in State_Met'''''
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| − | |[[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |nh_5
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| − | |Northern Hemisphere 5 day tracer
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| − | |TBD
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |nh_50
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| − | |Northern Hemisphere 50 day tracer
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| − | |TBD
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |sh_5
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| − | |Southern Hemisphere 5 day tracer
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| − | |TBD
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |sh_50
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| − | |Southern Hemisphere 50 day tracer
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| − | |TBD
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |ntr_5
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| − | |Northern Hemisphere Subtropical 5 day tracer
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| − | |TBD
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |ntr_50
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| − | |Northern Hemisphere Subtropical 50 day tracer
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| − | |TBD
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |str_5
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| − | |Southern Hemisphere Subtropical 5 day tracer
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| − | |TBD
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |str_50
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| − | |Southern Hemisphere Subtropical 50 day tracer
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| − | |TBD
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |tr_5
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| − | |Tropical 5 day tracer
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| − | |TBD
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |tr_50
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| − | |Tropical 50 day tracer
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| − | |TBD
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| − |
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| − |
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| − | |-valign="top"
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| − | |TBD
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| − | |st80_25
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| − | |Stratospheric source 25 day tracer
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| − | |TBD
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| − |
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| − | |-valign
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| − | |TBD
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| − | |oNpbl
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| − | |[[#Origin tracers|Origin tracer]] for 45N-90N and surface to ~800 hPa
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| − | |TBD
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| − |
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| − | |-valign
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| − | |TBD
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| − | |oSpbl
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| − | |[[#Origin tracers|Origin tracer]] for 45S-90S and surface to ~800 hPa
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| − | |TBD
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| − |
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| − | |-valign
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| − | |TBD
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| − | |oStrat
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| − | |[[#Origin tracers|Origin tracer]] for the stratosphere
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| − | |TBD
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| − |
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| − | |}
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| − |
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| − | === Implementation in GEOS-Chem ===
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| − |
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| − | Several of the GEOS tracers listed above have been added as [[HEMCO_examples#Passive_species|passive species in GEOS-Chem]]. The new tracers are listed in the advected species menu of input.geos as:
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| − |
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| − | %%% ADVECTED SPECIES MENU %%%:
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| − | Type of simulation : 1
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| − | Species Entries ------->: Name
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| − | Species name : Rn222
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| − | Species name : Pb210
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| − | Species name : Pb210Strat
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| − | Species name : Be7
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| − | Species name : Be7Strat
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| − | Species name : Be10
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| − | Species name : Be10Strat
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| − | Species name : PassiveTracer
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| − | <span style="color:green">Species name : SF6tracer
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| − | Species name : CH3Itracer
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| − | Species name : COAnthroEmis25dayTracer
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| − | Species name : COAnthroEmis50dayTracer
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| − | Species name : COUniformEmis25dayTracer
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| − | Species name : MaintainMixRatioGlobEmis90dayTracer
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| − | Species name : MaintainMixRatioNHEmis90dayTracer
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| − | Species name : MaintainMixRatioSHEmis90dayTracer</span>
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| − |
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| − | In the passive species menu of input.geos, each species is defined along with the molecular weight, lifetime, default background concentration, and long name.
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| − |
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| − | %%% PASSIVE SPECIES MENU %%%:
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| − | Passive species name : PassiveTracer 1.0 -1 1.0e-7 Passive_tracer_for_mass_conservation_evaluation
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| − | <span style="color:green">Passive species name : SF6Tracer 146.0 -1 1.0e-20 Sulfur_hexafluoride
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| − | Passive species name : CH3ITracer 142.0 4.32e5 1.0e-20 Methyl_iodide
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| − | Passive species name : COAnthroEmis25dayTracer 28.0 2.16e6 1.0e-20 Anthropogenic_CO_with_25day_lifetime
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| − | Passive species name : COAnthroEmis50dayTracer 28.0 4.32e6 1.0e-20 Anthropogenic_CO_with_50day_lifetime
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| − | Passive species name : COUniformEmis25dayTracer 28.0 2.16e6 1.0e-20 CO_with_uniform_emission_and_25day_lifetime
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| − | Passive species name : MaintainMixRatioGlobEmis90dayTracer 1.0 7.776e6 1.0e-20 Globally_emitted_tracer_with_90day_lifetime
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| − | Passive species name : MaintainMixRatioNHEmis90dayTracer 1.0 7.776e6 1.0e-20 Northern_hemisphere_emitted_tracer_with_90day_lifetime
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| − | Passive species name : MaintainMixRatioSHEmis90dayTracer 1.0 7.776e6 1.0e-20 Southern_hemisphere_emitted_tracer_with_90day_lifetime</span>
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| − |
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| − | Species with an emissions flux also have a corresponding entry in the HEMCO_Config.rc file.
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| − |
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| − | #==============================================================================
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| − | # SF6 emissions from EDGAR v4.2
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| − | #==============================================================================
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| − | 0 EDGAR_SF6 $ROOT/SF6/v2019-01/EDGAR_v42_SF6_IPCC_2.generic.01x01.nc emi_sf6 1970-2008/1-12/1/0 C xy kg/m2/s SF6Tracer - 1 1
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| − |
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| − | #==============================================================================
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| − | # CH3I emitted over the oceans at rate of 1 molec/cm2/s
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| − | #==============================================================================
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| − | 0 SRC_2D_CH3I 1.0 - - - xy molec/cm2/s CH3ITracer 1000 1 1
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| − |
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| − | #==============================================================================
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| − | # Anthropogenic CO 25-day and 50-day tracers
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| − | #==============================================================================
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| − | 0 CEDS_CO25d_ENE $ROOT/CEDS/v2018-08/$YYYY/CO-em-anthro_CMIP_CEDS_$YYYY.nc CO_ene 1950-2014/1-12/1/0 C xy kg/m2/s COAnthroEmis25dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO50d_ENE - - - - - - COAnthroEmis50dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO25d_IND $ROOT/CEDS/v2018-08/$YYYY/CO-em-anthro_CMIP_CEDS_$YYYY.nc CO_ind 1950-2014/1-12/1/0 C xy kg/m2/s COAnthroEmis25dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO50d_IND - - - - - - COAnthroEmis50dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO25d_TRA $ROOT/CEDS/v2018-08/$YYYY/CO-em-anthro_CMIP_CEDS_$YYYY.nc CO_tra 1950-2014/1-12/1/0 C xy kg/m2/s COAnthroEmis25dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO50d_TRA - - - - - - COAnthroEmis50dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO25d_RCO $ROOT/CEDS/v2018-08/$YYYY/CO-em-anthro_CMIP_CEDS_$YYYY.nc CO_rco 1950-2014/1-12/1/0 C xy kg/m2/s COAnthroEmis25dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO50d_RCO - - - - - - COAnthroEmis50dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO25d_SLV $ROOT/CEDS/v2018-08/$YYYY/CO-em-anthro_CMIP_CEDS_$YYYY.nc CO_slv 1950-2014/1-12/1/0 C xy kg/m2/s COAnthroEmis25dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO50d_SLV - - - - - - COAnthroEmis50dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO25d_WST $ROOT/CEDS/v2018-08/$YYYY/CO-em-anthro_CMIP_CEDS_$YYYY.nc CO_wst 1950-2014/1-12/1/0 C xy kg/m2/s COAnthroEmis25dayTracer 26 1/2/12 5
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| − | 0 CEDS_CO50d_WST - - - - - - COAnthroEmis50dayTracer 26 1/2/12 5
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| − |
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| − | #==============================================================================
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| − | # CO tracer with uniform surface emission of 2400 Tg/yr
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| − | #==============================================================================
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| − | 0 SRC_2D_COUniform25d 1.5e-7 - - - xy kg/m2/s COUniformEmis25dayTracer - 1 1
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| − |
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| − | ...
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| − |
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| − | 1000 OCEAN_MASK $METDIR/$CNYR/01/$MET.$CNYR0101.CN.$RES.$NC FROCEAN 2000/1/1/0 C xy 1 1 -180/-90/180/90
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| − | 1001 NH_MASK -180/0/180/90 - 2000/1/1/0 C xy 1 1 -180/0/180/90
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| − | 1002 SH_MASK -180/-90/180/0 - 2000/1/1/0 C xy 1 1 -180/-90/180/0
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| − |
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| − | --[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 13:12, 4 January 2019 (UTC)
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| − |
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| − | === Origin tracers ===
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| − |
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| − | '''''Chris Holmes wrote:'''''
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| − |
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| − | :Another tracer suggestion: I like and use the "origin" tracers defined by Clara Orbe et al. (2013). These tracers give the fraction of air that that originates in specified source regions.
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| − |
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| − | :In addition to diagnosing transport, I think the tracers will be useful as templates for users to modify for their own purposes (e.g. customizing source regions). For that reason, a comprehensive set of tracers would be useful, if they can be optional.
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| − | :'''Reference'''
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| − | :Orbe, C., M. Holzer, L. M. Polvani, and D. Waugh (2013), ''Air-mass origin as a diagnostic of tropospheric transport'', <u>J. Geophys. Res. Atmos.</u>, 118, 1459–1470, doi:10.1002/jgrd.50133.
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| − | --[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 18:42, 23 February 2018 (UTC)
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