History collections for methane

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Previous | Next | Guide to GEOS-Chem History diagnostics

  1. Overview of History diagnostics
  2. Legend for History diagnostics
  3. Collections for History diagnostics
  4. History collections for advection and mixing
  5. History collections for aerosols
  6. History collections for budgets
  7. History collections for chemistry and photolysis
  8. History collections for convection and wet deposition
  9. History collections for dry deposition
  10. History collections for mercury and POPs
  11. History collections for met fields and related quantities
  12. History collections for methane
  13. History collections for species concentrations
  14. History collections for TransportTracers
  15. Replicating the behavior of the prior timeseries diagnostics
  16. Adding new History diagnostics


The CH4 collection

The CH4 collection contains diagnostics for loss of CH4 and OH concentration for the CH4 specialty simulation.

Here is a sample definition section for the CH4 collection.

  • If this collection is not already present in the HISTORY.rc file in the GEOS-Chem run directory for your selected simulation, you can copy and paste this into your HISTORY.rc file and edit accordingly.
  • To prevent an individual field from being included in the diagnostic output, place a comment character # in front of the field name.
  • Please see our Legend for History diagnostics page for more information about each of the collection tags.
  CH4.template:               '%y4%m2%d2_%h2%n2z.nc4',
  CH4.format:                 'CFIO',
  CH4.frequency:              00000100 000000
  CH4.duration:               00000100 000000
  CH4.mode:                   'time-averaged'
  CH4.fields:                 'OHconcAfterChem               ', 'GIGCchem',
                              'LossCH4byClinTrop             ', 'GIGCchem',
                              'LossCH4byOHinTrop             ', 'GIGCchem',
                              'LossCH4inStrat                ', 'GIGCchem',
::

This table describes the diagnostic quantities belonging to the CH4 collection:

Diagnostic name Description Units Wildcards Simulations Notes Bpch equiv.
LossCH4byClinTrop Loss of CH4 by reaction with Cl in the troposphere kg/s
LossCH4byOHinTrop Loss of CH4 by reaction with OH in the troposphere kg/s
LossCH4inStrat Loss of CH4 in the stratosphere kg/s
OHconcAfterChem OH concentration after chemistry kg/s

--Bob Yantosca (talk) 16:34, 19 July 2019 (UTC)

The ConcAfterChem collection

The ConcAfterChem collection is listed on our History collections for chemistry and photolysis page.

--Bob Yantosca (talk) 16:31, 19 July 2019 (UTC)



Previous | Next | Guide to GEOS-Chem History diagnostics