DATEM - 22 March 2013
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	The archive is divided into 8 directories with the original
documentation, reformatted experimental data, configuration files
to run HYSPLIT, binary and text model results, statistical results,
sample plotting programs, statistical programs, and the raw data
files where available. The meteorological data are available from
arlftp.arlhq.noaa.gov in the /pub/archives directory with sub-
directories of /narr, /reanalysis, /wrfarw, or /mm5. See the 
indivudal experiment control files in /mdl_cfg to determine which 
meteorological data were used for each experiment.  Meteorological 
data have been reformatted to be directly compatible with use by 
HYSPLIT. Experiments included in the DATEM archive are ACURATE, 
ANATEX, CAPTEX, ETEX, INEL74, METREX, OKC80, and SRP76. Each 
directory contains data from all exeriments, unless otherwise
noted. The directory structure is as follows:

document

	Copies of PDF reports for each experiment as prepared 
	by the experiment authors.  Summarizes many details 
	about the methodology and usually tabulates the raw
	data prior to any DATEM processing. The raw data files
	where available are found in the raw_data directory.
	The DATEM report "datem.pdf" is located in this directory.

exp_data

	The emissions and sampling data processed into the 
	standared DATEM format.  Standard file name convention
	for each experimental subdirectory is to name the 
	files emit-t?.txt and meas-t?.txt for the emissions and
	measured sampling data, respectively.

mdl_cfg

	Example simulation CONTROL, SETUP, and execution files
	are provided for the HYSPLIT ATM. These files can be 
	used as guidance for each user to set up their own ATM
	inputs, or run their own simulations using HYSPLIT. The
	CONTROL files show the link to the required meteorological
	data files.

mdl_data

	ATM output files are written to this directory for each
	experiment.  Execution examples are provided that
	convert HYSPLIT output files to the DATEM format with
	standard file names such as ct1_001.txt. Users should 
	place their ATM outputs in this directory.

mdl_stat

	Execution examples are provided that read the DATEM
	format experimental data (exp_data) and ATM results
	(mdl_data) and created the statistical analysis
	output files avg1_001.txt (averaged data) and gbl1_001.txt
	(unaveraged paired in space and time) in each experiment
	subdirectory.
		
plot_pgm

	The "c2grads" directory contains a Fortran 90 program
	that will convert the merged measured and predicted
	files output from the "statmain" program to GrADS
	format.  In addition, the program also creates all
	required GrADS control files.  GrADS can then be used
	to contour the measured and model results.

stat_pgm

	The "c2datem" program is an example to convert HYSPLIT
	output files to the DATEM format.  The "statmain" 
	program is the primary statistical program used to 
	analyze ATM performance.

raw_data

	Contains the digital data files in their orignal format
	for each experiment as referenced by the reports in the
	document directory.