FINNv1 biomass burning emissions

Overview of FINN v1 data

NOTE: At present, the FINN biomass emissions inventory has been added to the non-standard SEAC4RS research version of GEOS-Chem. FINN is being implemented into GEOS-Chem v10-01 (via the HEMCO emissions component). While the standard GEOS-Chem simulation uses GFED3 biomass burning, you may select FINN instead of GFED3 if your research requires it.

—Bob Yantosca, 25 Feb 2014)

"The Fire INventory from NCAR version 1.0 (FINNv1) provides daily, 1-km resolution, global estimates of the trace gas and particle emissions from open burning of biomass, which includes wildfire, agricultural fires, and pre- scribed burning and does not include biofuel use and trash burning" (Wiedinmyer et al., 2011). For more information about this inventory, see:
Wiedinmyer, C., S. K. Akagi, R .J. Yokelson, L. K. Emmons, J. A. Al-Saadi, J. J. Orlando, and A. J. Soja. The Fire INventory from NCAR (FINN): a high resolution global model to estimate the emissions from open burning. Geosci. Model Dev., 4, 625–641, 2011. [1]

Current non-standard implementations

As of IGC6 (May 2013), FINNv1 has been implemented in non-standard versions of GEOS-Chem by at least 3 groups. These implementations allow users to use the ASCII emissions files (or a converted gridded netcdf equivalent) available directly from http://bai.acd.ucar.edu/Data/fire/. If you are interested in working with FINNv1 emissions immediately, please contact Jingqiu Mao (Jingqiu.Mao@noaa.gov), Min Huang (Min.Huang@jpl.nasa.gov), or Jenny Fisher (jennyf@uow.edu.au).

--Bob Y. 10:54, 13 May 2014 (EDT)

Implementation in GEOS-Chem

Jenny Fisher (U. Wollongong), Jingqiu Mao (Princeton), and Christine Wiedinmyer (NCAR) have worked to implement FINNv1 into the standard version of GEOS-Chem. This implementation includes a number of features, many of which are improvements over the non-standard implementations currently used (see below):

1. Improved speciation for GEOS-Chem, including specialty simulations like SOA
2. Compatibility with new emissions module (including use of netcdf, high-resolution inputs, online regridding, etc.)
3. GFED-like online computation of emissions for most species based on emissions of a single species for each land type (significantly reducing file storage requirements)
4. Ability to use daily or monthly emissions

If you have questions or suggestions, please contact Jenny Fisher (jennyf at uow dot edu dot au) and Jingqiu Mao (jmao at princeton dot edu) --Bob Y. 14:47, 5 March 2015 (EST)

--Bob Y. 14:47, 5 March 2015 (EST)

UPDATE (July 2014)

A new version of FINNv1 emissions has been implemented GEOS-Chem v10-01 via the HEMCO emissions component. The new implementation starts from CO2 emissions (gridded to high resolution from original FINN files) for 6 different land types. CO2 emissions are converted to emissions of other gas phase and aerosol species using emission ratios provided by Christine Wiedinmyer. Emissions of non-methane organic compounds are derived from a single NMOC species (also computed from ratios to CO2) using speciation factors (also provided by Christine Wiedinmyer). These calculations are performed online in GEOS-Chem, then summed over land types and regridded to model resolution. FINN can be used with daily or monthly resolution, and emissions will be available with a lag of approximately 6 months behind real time (in special cases, near-real-time emissions can also be provided).

This implementation includes support for many species, including those used in specialised GEOS-Chem simulations. Some of these species are not currently emitted in publicly available releases of GEOS-Chem, and interested users will be responsible for adding relevant emissions-related code (i.e. defining IDBs, etc.). No changes to the FINN code itself should be necessary to use these species. The current list of FINN species includes:

1. Species currently emitted by biomass burning in standard versions for full chemistry and/or specialty simulations (no code changes necessary): CO2, CO, CH4, NO, SO2, OC, BC, NH3, ACET, ALD2, ALK4, BENZ, C2H2, C2H4, C2H6, C3H8, CH2BR2, CH2O, CH3BR, GLYC, GLYX, HAC, MEK, MGLY, PRPE, TOLU, XYLE
2. Species either not currently emitted or emitted but not by biomass burning in standard versions (code changes necessary): ACTA, CH3CN, CH3I, DMS, EOH, HCN, HCOOH, HNO2, ISOP, MACR, MNO3, MOH, MVK, R4N2, RCHO, LIMO, MTPA, MTPO
3. Species currently lumped online in the FINN code: ETBENZ (with TOLU), STYR (with TOLU), TMB (with XYLE), APINE (with MTPA), BPINE (with MTPA), CARENE (with MTPA)
4. Species/groupings that don't currently exist but that are defined in FINN inputs for possible implementation by interested users: AROM, FUR, ROH, RCOOH, SESQ

For the original lumping of VOCs into GEOS-Chem species, see FINN_final_lumping.pdf

Potential future updates include more detailed treatment of terpenes and of secondary species like PAN. If you have an interest in working on emissions of these species, please contact me (jennyf@uow.edu.au) and/or Christine (christin@ucar.edu).

--Jenny Fisher, 4 June 2014

FINN as a HEMCO extension

In GEOS-Chem v10-01 and newer versions, the FINN biomass burning emissions are computed via the HEMCO emissions component. We have created new data files (in COARDS-compliant netCDF format) for use with HEMCO. These new data files are contained in the HEMCO data directory tree. For detailed instructions on how to download these data files to your disk server, please see our Downloading the HEMCO data directories wiki post.

--Bob Y. 13:25, 3 March 2015 (EST)

Previous issues that are now resolved

Minor fixes for FINNv1

NOTE: The following issue was resolved during the public comment period for GEOS-Chem v10-01.

Luke Schiferl (MIT) noted that the entries for FINNv1 biomass burning in the HEMCO configuration files that ship with the GEOS-Chem Unit Tester were not consistent with the most recent FINNv1 data. We have therefore edited the HEMCO configuration files accordingly with the proper entries:

(((.not.FINN_daily
114 FINN_VEGTYP1       $ROOT/FINN/v2015-02/FINN_monthly_$YYYY_0.25x0.25.compressed.nc fire_vegtype1 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_VEGTYP2       $ROOT/FINN/v2015-02/FINN_monthly_$YYYY_0.25x0.25.compressed.nc fire_vegtype2 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_VEGTYP3       $ROOT/FINN/v2015-02/FINN_monthly_$YYYY_0.25x0.25.compressed.nc fire_vegtype3 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_VEGTYP4       $ROOT/FINN/v2015-02/FINN_monthly_$YYYY_0.25x0.25.compressed.nc fire_vegtype4 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_VEGTYP5       $ROOT/FINN/v2015-02/FINN_monthly_$YYYY_0.25x0.25.compressed.nc fire_vegtype5 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_VEGTYP9       $ROOT/FINN/v2015-02/FINN_monthly_$YYYY_0.25x0.25.compressed.nc fire_vegtype9 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
))).not.FINN_daily

(((FINN_daily
114 FINN_DAILY_VEGTYP1 $ROOT/FINN/v2015-02/FINN_daily_$YYYY_0.25x0.25.compressed.nc   fire_vegtype1 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_DAILY_VEGTYP2 $ROOT/FINN/v2015-02/FINN_daily_$YYYY_0.25x0.25.compressed.nc   fire_vegtype2 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_DAILY_VEGTYP3 $ROOT/FINN/v2015-02/FINN_daily_$YYYY_0.25x0.25.compressed.nc   fire_vegtype3 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_DAILY_VEGTYP4 $ROOT/FINN/v2015-02/FINN_daily_$YYYY_0.25x0.25.compressed.nc   fire_vegtype4 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_DAILY_VEGTYP5 $ROOT/FINN/v2015-02/FINN_daily_$YYYY_0.25x0.25.compressed.nc   fire_vegtype5 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
114 FINN_DAILY_VEGTYP9 $ROOT/FINN/v2015-02/FINN_daily_$YYYY_0.25x0.25.compressed.nc   fire_vegtype9 $YYYY/1-12/1/0 C xy kg/m2/s * - 1 1
)))FINN_daily

We also fixed a bug in HEMCO that was causing the default FINN biomass diagnostics to be zeroed out.

--Bob Y. (talk) 18:16, 21 May 2015 (UTC)