-----Original Message-----
From: James Smith [mailto:jsmith11@fs.fed.us] 
Sent: Wednesday, August 11, 2004 3:02 PM
To: Murray, Brian C.
Cc: Depro, Brooks M.
Subject: RE: Environmental Management Article





Hi Brian,

I agree that aggregating by age class means that volumes should be very
narrowly distributed, and therefore no need for adjusting for scale.  We
don't adjust estimates for ATLAS files, which are also by age class.  Those
factors are more appropriate for summaries such as state-wide volumes.

Also, I don't know of a useful source for an estimate of carbon lost to
fire.  I emailed Linda to see if she had any suggestions.

-Jim





                                                                           
             "Murray, Brian                                                
             C." <bcm@rti.org>                                             
                                                                        To 
             08/11/2004 01:57          "'James Smith'"                     
             PM                        <jsmith11@fs.fed.us>                
                                                                        cc 
                                       "Depro, Brooks M." <bmd@rti.org>    
                                                                   Subject 
                                       RE: Environmental Management        
                                       Article                             
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           




Jim - The JoF article is of great help to us now as we are documenting the
methods we used for carbon accounting in FASOM and this provides a nice
summary of the methods that you use.  In principle, out methods should be
identical.  Brooks is looking over the article now to check for
consistency.


One issue that re-surfaced as I read the article is whether we should be
making the scale adjustment due to the fact that FASOM operates off of
aggregated, rather than plot, data.  According to the paper, perhaps we
should be applying the adjustment factors (0.94, 0.9,...) to our tree
carbon
calculations.  But I am wondering if this is AS necessary if we are
aggregating acres within an age class.  In other words, the distribution of
m3/ac should be narrower within an age class than across age classes.  Any
thoughts on that?

Brian

-----Original Message-----
From: James Smith [mailto:jsmith11@fs.fed.us]
Sent: Monday, August 09, 2004 10:21 AM
To: Murray, Brian C.
Subject: Re: Environmental Management Article






Hello Brian,
Here's the Environmental Management paper and a second very general
overview
of FORCARB-like carbon estimates from the Journal of Forestry -jim


(See attached file: SmithJOF_July04.pdf)(See attached file: Smith04_EM.pdf)


==================================================
Jim Smith
USDA Forest Service
Northeastern Research Station
P.O. Box 640
Durham, NH  03824
---------------------------------
603-868-7663
jsmith11@fs.fed.us



             "Murray, Brian
             C." <bcm@rti.org>
                                                                        To
             08/05/2004 03:43          "'jsmith11@fs.fed.us'"
             PM                        <jsmith11@fs.fed.us>
                                                                        cc

                                                                   Subject
                                       Environmental Management Article










Hi Jim - Hope you're well.  Can you please send me a reprint (electronic if
possible) of your paper on public lands carbon with Linda Heath? Carbon
Stocks and Projections on Public Forestlands in the United States,
1952-2040

Thanks, Brian


Brian C. Murray, Ph.D.
Director
Environmental and Natural Resource Economics Program
Research Triangle Institute
Hobbs 119
3040 Cornwallis Road
Research Triangle Park, NC 27709 USA


Phone: 919.541.6468
Fax: 919.541.6683