Difference between revisions of "CH4 simulation"

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'''''NOTE: Page under construction'''''
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__FORCETOC__
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'''''[[Aerosol-only simulation|Previous]] | [[CO2 simulation|Next]] | [[Guide to GEOS-Chem simulations]]'''''
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#[[GEOS-Chem chemistry mechanisms|Simulations using KPP-built mechanisms]]
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#[[Aerosol-only simulation]]
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#<span style="color:blue">'''CH4 simulation'''</span>
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#[[CO2 simulation]]
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#[[Mercury|Hg simulation]]
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#[[POPs simulation]]
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#[[Tagged CO simulation]]
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#[[Tagged O3 simulation]]
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#[[TransportTracers simulation]]
  
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This page contains information about the methane (CH4) simulation in GEOS-Chem.
 
  
 
== Overview ==
 
== Overview ==
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This page contains information about the methane (CH4) simulation in GEOS-Chem.
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The CH4 simulation in GEOS-Chem ...
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=== Authors and collaborators ===
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* [mailto:cpickett@seas.harvard.edu Christopher Pickett-Heaps]  ''(Harvard)''
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* [mailto:kevin.wecht@gmail.com Kevin Wecht] ''(Harvard)''
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* Jerome Drevet ''(formerly @ EPFL)''
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* James Wang ''(formerly @ Harvard)''
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=== CH4 simulation user groups ===
 
=== CH4 simulation user groups ===
  
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{| border=1 cellspacing=0 cellpadding=5
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See [[Carbon_Cycle_Working_Group#Current_Carbon_Cycle_Projects_.28please_add_yours.21.29|this post on the ''Carbon Cycle Working Group'' wiki page]].
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|- bgcolor="#cccccc"
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!User Group
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!Personnel
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!Projects
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|[http://acmg.seas.harvard.edu/ Harvard University]
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|[mailto:cpickett@seas.harvard.edu Christopher Pickett-Heaps]<br>[mailto:kevin.wecht@gmail.com Kevin Wecht]
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|Methane sources in the Arctic
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|-valign="top"
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|U. Wollongong
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|[mailto:cm700@uow.edu.au Chris Chan Miller]
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|Methane sources in tropical Australia
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|}
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=== Tagged CH4 simulation ===
  
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== Validation ==
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In addition to the standard CH4 simulation, users may also choose to run the tagged CH4 simulation where methane species are tagged by emission source.
  
 
== References ==
 
== References ==
  
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== Known issues ==
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#Bloom, A. A., Bowman, K. W., Lee, M., Turner, A. J., Schroeder, R., Worden, J. R., Weidner, R., McDonald, K. C., and Jacob, D. J.: A global wetland methane emissions and uncertainty dataset for atmospheric chemical transport models (WetCHARTs version 1.0), Geosci. Model Dev., 10, 2141-2156, https://doi.org/10.5194/gmd-10-2141-2017, 2017.
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#Sheng, J.-X., D. J. Jacob, J.D. Maasakkers, M.P. Sulprizio, D. Zavala-Areiza, and S. Hamburg, A high-resolution (0.1ox0.1o) inventory of methane emissions from Canadian and Mexican oil and gas systems, Atmos. Environ., 158, 211-215, 2017. [[http://www.sciencedirect.com/science/article/pii/S1352231017301164 PDF]]
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=== Error reading GWETTOP fields ===
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#Maasakkers, J.D., D.J.Jacob, M.P. Sulprizio, A.J. Turner, M. Weitz, T. Wirth, C. Hight, M. DeFigueiredo, M. Desai, R. Schmeltz, L. Hockstad, A.A. Bloom, K.W. Bowman, S. Jeong, and M.L. Fischer, Gridded national inventory of U.S. methane emissions, Environ. Sci. Technol., 50, 13123−13133, 2016. [[http://pubs.acs.org/doi/pdf/10.1021/acs.est.6b02878 PDF]]
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#Turner, A. J., Jacob, D. J., Wecht, K. J., Maasakkers, J. D., Biraud, S. C., Boesch, H., Bowman, K. W., Deutscher, N. M., Dubey, M. K., Griffith, D. W. T., Hase, F., Kuze, A., Notholt, J., Ohyama, H., Parker, R., Payne, V. H., Sussmann, R., Velazco, V. A., Warneke, T., Wennberg, P. O., and Wunch, D.: ''Estimating global and North American methane emissions with high spatial resolution using GOSAT satellite data'', <u>Atmos. Chem. Phys. Discuss.</u>, 15, 4495-4536, doi:10.5194/acpd-15-4495-2015, 2015.
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Melissa Payer discovered a file read error in the current CH4 simulation. We will fix this issue in [[GEOS-Chem v9-01-03]].
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#Turner, A. J. and Jacob, D. J.: ''Balancing aggregation and smoothing errors in inverse models'', <u>Atmos. Chem. Phys. Discuss.</u>, 15, 1001-1026, doi:10.5194/acpd-15-1001-2015, 2015.
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#Wecht, K.J., D.J. Jacob, C. Frankenberg, Z. Jiang, and D.R. Blake, ''Mapping of North America methane emissions with high spatial resolution by inversion of SCIAMACHY satellite data'', submitted to <u>J. Geophys. Res.</u>, 2014.
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'''''[mailto mpayer@seas.harvard.edu Melissa Payer] wrote:'''''
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#Wecht, K.J., D.J. Jacob, M.P. Sulprizio, G.W. Santoni, S.C. Wofsy, R. Parker, H. Bösch, and J.R. Worden, ''Spatially resolving methane emissions in California: constraints from the CalNex aircraft campaign and from present (GOSAT, TES) and future (TROPOMI, geostationary) satellite observations'', <u>Atm. Chem. Phys. Discuss.</u>, '''14''', 4119-4198, doi:10.5194/acpd-14-4119-2014, 2014.
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#Wecht, K.J., D.J. Jacob, S.C. Wofsy, E.A. Kort, J.R. Worden, S.S. Kulawik, D.K. Henze, M. Kopacz, and V.H. Payne, ''Validation of TES methane with HIPPO aircraft observations: implications for inverse modeling of methane sources'', <u>Atmos. Chem. Phys.</u>, '''12''', 1823-1832, 2012.
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:I got the offline CH4 simulation rice emissions to work. It turns out that XTAU is being reset [to a the wrong value] when GWETTOP is read. To fix this, I added the following code in RICE_EMIS prior to setting the soil wetness FILENAME:
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#Pickett-Heaps, C.A., D.J. Jacob, K.J. Wecht, E.A. Kort, S.C. Wofsy, G.S. Diskin, D.E.J. Worthy, J.O. Kaplan, I. Bey, and J. Drevet, ''Magnitude of seasonality of wetland methane emissions from the Hudson Bay Lowlands (Canada)'', <u>Atmos. Chem. Phys.</u>, '''11(8)''', 3773-3779, doi:10.5194/acp-11-3773-2011, 2011.
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#Wang, J.S., J.A. Logan, M.B. McElroy, B.N. Duncan, I.A. Megretskaia, and R.M. Yantosca, ''A 3-D model analysis of the slowdown and interannual variability in the methane growth rate from 1988 to 1997'', <u>Global Biogeochem. Cycles</u>, '''18''', GB3011, doi:10.1029/2003GB002180, 2004.
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          ! Determine year for soil wetness files (mpayer, 1/31/12)
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          IF ( GET_YEAR() < 2004 ) THEN
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            CYEAR  = '2004'
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            CYEAR2 = 2004
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          ELSEIF (GET_YEAR() > 2009 ) THEN
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            CYEAR  = '2009'
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            CYEAR2 = 2009
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          ELSE
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            WRITE( CYEAR, '(i4)' ) GET_YEAR()
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            CYEAR2 = GET_YEAR()
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          ENDIF
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:I also changed:
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          XTAU = GET_TAU0( 1, 1, GET_YEAR() )
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:to:
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          XTAU = GET_TAU0( 1, 1, CYEAR2 )
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:For both annual and monthly mean GEWTTOP. That seems to work and it reads the file for the proper simulation year.  
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--[[User:Bmy|Bob Y.]] 10:29, 1 February 2012 (EST)
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Latest revision as of 14:40, 18 October 2023

Previous | Next | Guide to GEOS-Chem simulations

  1. Simulations using KPP-built mechanisms
  2. Aerosol-only simulation
  3. CH4 simulation
  4. CO2 simulation
  5. Hg simulation
  6. POPs simulation
  7. Tagged CO simulation
  8. Tagged O3 simulation
  9. TransportTracers simulation


Overview

This page contains information about the methane (CH4) simulation in GEOS-Chem.

CH4 simulation user groups

See this post on the Carbon Cycle Working Group wiki page.

Tagged CH4 simulation

In addition to the standard CH4 simulation, users may also choose to run the tagged CH4 simulation where methane species are tagged by emission source.

References

  1. Bloom, A. A., Bowman, K. W., Lee, M., Turner, A. J., Schroeder, R., Worden, J. R., Weidner, R., McDonald, K. C., and Jacob, D. J.: A global wetland methane emissions and uncertainty dataset for atmospheric chemical transport models (WetCHARTs version 1.0), Geosci. Model Dev., 10, 2141-2156, https://doi.org/10.5194/gmd-10-2141-2017, 2017.
  2. Sheng, J.-X., D. J. Jacob, J.D. Maasakkers, M.P. Sulprizio, D. Zavala-Areiza, and S. Hamburg, A high-resolution (0.1ox0.1o) inventory of methane emissions from Canadian and Mexican oil and gas systems, Atmos. Environ., 158, 211-215, 2017. [PDF]
  3. Maasakkers, J.D., D.J.Jacob, M.P. Sulprizio, A.J. Turner, M. Weitz, T. Wirth, C. Hight, M. DeFigueiredo, M. Desai, R. Schmeltz, L. Hockstad, A.A. Bloom, K.W. Bowman, S. Jeong, and M.L. Fischer, Gridded national inventory of U.S. methane emissions, Environ. Sci. Technol., 50, 13123−13133, 2016. [PDF]
  4. Turner, A. J., Jacob, D. J., Wecht, K. J., Maasakkers, J. D., Biraud, S. C., Boesch, H., Bowman, K. W., Deutscher, N. M., Dubey, M. K., Griffith, D. W. T., Hase, F., Kuze, A., Notholt, J., Ohyama, H., Parker, R., Payne, V. H., Sussmann, R., Velazco, V. A., Warneke, T., Wennberg, P. O., and Wunch, D.: Estimating global and North American methane emissions with high spatial resolution using GOSAT satellite data, Atmos. Chem. Phys. Discuss., 15, 4495-4536, doi:10.5194/acpd-15-4495-2015, 2015.
  5. Turner, A. J. and Jacob, D. J.: Balancing aggregation and smoothing errors in inverse models, Atmos. Chem. Phys. Discuss., 15, 1001-1026, doi:10.5194/acpd-15-1001-2015, 2015.
  6. Wecht, K.J., D.J. Jacob, C. Frankenberg, Z. Jiang, and D.R. Blake, Mapping of North America methane emissions with high spatial resolution by inversion of SCIAMACHY satellite data, submitted to J. Geophys. Res., 2014.
  7. Wecht, K.J., D.J. Jacob, M.P. Sulprizio, G.W. Santoni, S.C. Wofsy, R. Parker, H. Bösch, and J.R. Worden, Spatially resolving methane emissions in California: constraints from the CalNex aircraft campaign and from present (GOSAT, TES) and future (TROPOMI, geostationary) satellite observations, Atm. Chem. Phys. Discuss., 14, 4119-4198, doi:10.5194/acpd-14-4119-2014, 2014.
  8. Wecht, K.J., D.J. Jacob, S.C. Wofsy, E.A. Kort, J.R. Worden, S.S. Kulawik, D.K. Henze, M. Kopacz, and V.H. Payne, Validation of TES methane with HIPPO aircraft observations: implications for inverse modeling of methane sources, Atmos. Chem. Phys., 12, 1823-1832, 2012.
  9. Pickett-Heaps, C.A., D.J. Jacob, K.J. Wecht, E.A. Kort, S.C. Wofsy, G.S. Diskin, D.E.J. Worthy, J.O. Kaplan, I. Bey, and J. Drevet, Magnitude of seasonality of wetland methane emissions from the Hudson Bay Lowlands (Canada), Atmos. Chem. Phys., 11(8), 3773-3779, doi:10.5194/acp-11-3773-2011, 2011.
  10. Wang, J.S., J.A. Logan, M.B. McElroy, B.N. Duncan, I.A. Megretskaia, and R.M. Yantosca, A 3-D model analysis of the slowdown and interannual variability in the methane growth rate from 1988 to 1997, Global Biogeochem. Cycles, 18, GB3011, doi:10.1029/2003GB002180, 2004.
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