Difference between revisions of "Biomass burning emissions"
(→04-Apr-2008) |
(→04-Apr-2008) |
||
Line 9: | Line 9: | ||
:The [GFED2 8-day emissions] code is working and I am using it for my work. Overall, the results I get for CO and ozone are very similar to my monthly GFED runs but this changes if one focuses on a specific region over with a short time scale. | :The [GFED2 8-day emissions] code is working and I am using it for my work. Overall, the results I get for CO and ozone are very similar to my monthly GFED runs but this changes if one focuses on a specific region over with a short time scale. | ||
− | :{Here are} ... [http://www.as.harvard.edu/ctm/geos/wiki_docs/GFED2_compare.pdf Some of {my comparisons}.] This is by no means a complete analysis but more of an initial assessment. | + | :{Here are} ... [http://www.as.harvard.edu/ctm/geos/emissions/wiki_docs/GFED2_compare.pdf Some of {my comparisons}.] This is by no means a complete analysis but more of an initial assessment. |
:In my opinion, the move to 8-day emissions is a definite improvement, although as I said, the differences are fairly localized and really only matter for time scales shorter than one month. | :In my opinion, the move to 8-day emissions is a definite improvement, although as I said, the differences are fairly localized and really only matter for time scales shorter than one month. |
Revision as of 18:12, 15 December 2008
Contents
GFED2
04-Apr-2008
Here is an update on the status of the GFED2 8-day emissions:
Ray Nassar (ray@io.as.harvard.edu) wrote:
- The [GFED2 8-day emissions] code is working and I am using it for my work. Overall, the results I get for CO and ozone are very similar to my monthly GFED runs but this changes if one focuses on a specific region over with a short time scale.
- {Here are} ... Some of {my comparisons}. This is by no means a complete analysis but more of an initial assessment.
- In my opinion, the move to 8-day emissions is a definite improvement, although as I said, the differences are fairly localized and really only matter for time scales shorter than one month.
NOTE: As of April 2008, the GFED2 8-day emissions have not been added to the standard GEOS-Chem code but will go into a future version (perhaps v8-01-02 or v8-01-03). Please contact Ray Nassar if you wish to use the GFED2 8-day emissions in the meantime.
--Bmy 10:28, 4 April 2008 (EDT)
02-Jan-2008
The fix described below for making 2006 the last available year of GFED2 data has now been implemented into GEOS-Chem v8-01-01. This will be released sometime in January 2008.
GFED2 8-day emissions are in the pipeline but have not yet been tested in any version of GEOS-Chem.
25-Sep-2007
The previous benchmarked version (GEOS-Chem v7-04-12) is able to compute GFED2 biomass emissions from 1997-2005.
We have recently obtained the GFED2 C emissions data for the year 2006. In order to use the 2006 C emissions data to compute 2006 biomass emissions, then you must modify the following lines in the file "gfed2_biomass_mod.f":
! 2005 is currently the last year of available data IF ( YYYY > 2005 ) THEN YYYY = 2005 WRITE( 6, 120 ) 120 FORMAT( 'YEAR > 2005; Using GFED2 biomass for 2005!' ) ENDIF
to
! 2006 is currently the last year of available data IF ( YYYY > 2006 ) THEN YYYY = 2006 WRITE( 6, 120 ) 120 FORMAT( 'YEAR > 2006; Using GFED2 biomass for 2006!' ) ENDIF
NOTE: This fix has been added into GEOS-Chem v8-01-01. For the time being, if you need to use the 2006 GFED2 emissions in an earlier version than v8-01-01, then please apply the above changes to your research code.