FINN2.5 in EMEP rv4_36 about emep-ctm HOT 6 OPEN

Hi Kevin,
We do not normally distribute our FINN forest fire netcdf files. If you have got a file that has been converted by us, which emission year was it, and what is the creation date? (global attributes created_date and created_hour). We have had some erroneous versions, and maybe your copy is one of them.

from emep-ctm.

Hi Peter,

I used a inventory that a made myself, with the database from NCAR (https://www2.acom.ucar.edu/modeling/finn-fire-inventory-ncar), I don't have access to any "official" forest fires inventory. Here is a dump from the inventory that I made.

I think that emissions from aerosol in molecules are or could be wrong calculated. This is a inventory for last days of 2018 and January of 2019.

dimensions:
lat = 880 ;
lon = 880 ;
time = 43 ;
variables:
float lat(lat) ;
lat:units = "degrees_north" ;
lat:long_name = "latitude" ;
float lon(lon) ;
lon:units = "degrees_east" ;
lon:long_name = "longitude" ;
float time(time) ;
time:units = "days since 1990-01-01 00:00:00" ;
time:long_name = "time" ;
time:calendar = "Gregorian" ;
float BC(time, lat, lon) ;
BC:units = "mol/day" ;
float CO(time, lat, lon) ;
CO:units = "mol/day" ;
float ACET(time, lat, lon) ;
ACET:units = "mol/day" ;
float ALK4(time, lat, lon) ;
ALK4:units = "mol/day" ;
float BENZ(time, lat, lon) ;
BENZ:units = "mol/day" ;
float C2H4(time, lat, lon) ;
C2H4:units = "mol/day" ;
float C2H6(time, lat, lon) ;
C2H6:units = "mol/day" ;
float C3H8(time, lat, lon) ;
C3H8:units = "mol/day" ;
float CH20(time, lat, lon) ;
CH20:units = "mol/day" ;
float GLYC(time, lat, lon) ;
GLYC:units = "mol/day" ;
float HAC(time, lat, lon) ;
HAC:units = "mol/day" ;
float MEK(time, lat, lon) ;
MEK:units = "mol/day" ;
float MGLY(time, lat, lon) ;
MGLY:units = "mol/day" ;
float PRPE(time, lat, lon) ;
PRPE:units = "mol/day" ;
float TOLU(time, lat, lon) ;
TOLU:units = "mol/day" ;
float XYLE(time, lat, lon) ;
XYLE:units = "mol/day" ;
float CH3CHO(time, lat, lon) ;
CH3CHO:units = "mol/day" ;
float NH3(time, lat, lon) ;
NH3:units = "mol/day" ;
float NO(time, lat, lon) ;
NO:units = "mol/day" ;
float NO2(time, lat, lon) ;
NO2:units = "mol/day" ;
float OC(time, lat, lon) ;
OC:units = "mol/day" ;
float PM25(time, lat, lon) ;
PM25:units = "mol/day" ;
float SO2(time, lat, lon) ;
SO2:units = "mol/day" ;

// global attributes:
:title = "FINN_v2.5_2018" ;

Since this inventory I made it myself, I think is builded wrong.

Could you guide me if there something wrong with this inventory?

Kevin

from emep-ctm.

and you use the correct unit conversion? they specify
"NOTE on units: In the text files with emissions for each fire, the aerosols (BC, OC, PM2.5, PM10), as well as the gas-phase lumped species 'NOXasNO' and NMOC, are in units of kg/day, and the gas-phase species are in moles/day. In these files 'AREA' is the area burned in m^2; 'BMASS' is the biomass burned per area burned in kg/m^2. 'GENVEG' specifies the vegetation type assumed for the fire: 1 = grasslands and savanna; 2 = woody savanna/shrublands; 3 = tropical forest; 4 = temperate forest; 5 = boreal forest; 6 = temperate evergreen forest; 9 = croplands; 0 = no vegetation.
In the 0.1x0.1 degree gridded files, all compounds are converted to molecules/cm^2/sec, where aerosols have been converted from kg to molecules using molecular weight of 12 g/mole.
"

from emep-ctm.

I read it and I think the second apply to my case, I only use the netCDF files, not the text files. I convert these to molescules/day, so I did not change molecules to mass. I do not know if EMEP convert "molecules of PM" as they do (NCAR).

Maybe this is making my results bad?

from emep-ctm.

Yes, the emep model assumes kg/day for PM25, given you are using the "CMX_BiomassBurning_FINNv2p5.txt" conversion file

from emep-ctm.

Thanks for the clarification.

I will change the units and come back with you.

Best regards

from emep-ctm.