These files are prepared for the modellers, who wish 
to conduct further research based on their experiences
from TransCom-CH4. Each of these files contain emissions
for individual flux components as used in preparing 
the CH4_CTL tracers. How these fluxes are prepared
has been described in Patra et al. (JMSJ, 2009), and 
in the TransCom-CH4 control paper and the protocol.
			Prabir Patra, 17 June 2011

ch4_actm_anthrp.nc  : Combined anthropogenic emission 
		based on EDGAR3.2 spatial distributions
		and EDGAR HYDE trends (Olivier and Berdowski, 
		2001). The original flux distributions
		are available at 2, 5 or 10 years intervals
		but are interpolated to monthly intervals
		for this work. Please note the monthly
		values do not include any seasonal cycle. 

ch4_actm_bioburn.nc : Emissions due to biomass burning
		as in Fung et al. (1991), and total emission
		is reduced to about 60 Tg-CH4 by multiplying
		the values by 0.483.

ch4_actm_rice.nc    : Emissions from rice paddies (Yan et 
		al., GBC, 2009). The global total emission
		is increased by a multiplication factor
		of 1.56. It is a believe that emissions
		from this sources should be about 40 Tg-CH4/yr
		(Patra et al., 2009 show some sensitivity
		study).

ch4_actm_bogs.nc    : These three sets of emissions are
ch4_actm_swamps.nc  : choosen from Fung et al. to represent
ch4_actm_tundra.nc  : wetland emissions. The original emissions
		due to Tundra, Swamps and Bogs are multiplied
		by 2.0, 1.92 and 1.0, respectively. The total
		emissions due to all wetland is summed to about
		150 Tg-CH4/yr.

ch4_actm_termite.nc : This emission is originally available 
		as annual mean (Fung et al.). The values are
		repeated for all 12 months.

**************************************************************
Please note that only a climatological mean seasonal cycles 
(ignore time stamps in the NetCDF files) are available for 
biogenic fluxes in Fung et al. (1991; GISS database at 
http://data.giss.nasa.gov/ch4_fung/) and Yan et al. (2009; REAS
database at www.jamstec.go.jp/frcgc/research/p3/reas_c.html). 
Please check TransCom-CH4 protocol for CH4_BB, CH4_EXTRA etc. 
tracers regarding how to combine interannually varying biomass 
burning or wetland emissions with this set of fluxes (just as 
a suggestion).