README.mrgnc.txt

RADAR, ETL Vertical Pointing; Final, 12-hr merged radar data (netCDF)(Uttal)

File naming convention:
	ddmonyyyy.00:00-12:00.mrg.corrected.nc.gz
	(can also be 12:00-24:00 for 12 hour period)
	NOTE: If .gz is present at end of files, they will have to
	be uncompressed using gunzip.

Description of file information:
	12 hour, corrected and merged radar files containing radar reflectivity,
	mean doppler velocity, spectral width, signal-to-noise ratio, quality
	control flags, and mode id.
	These are final versions.

Contains the following data fields:
	base_time:  File start time in seconds since 
		1970-01-01 00:00:00 00:00
	time_offset:  Time axis in seconds from base_time.
	
	Heights:  Height axis in m, AGL.
	
	Qc:  Quality control flags.  0 = No data, 1 = Good data,
		2 = Second trip echo problems, 3 = Coherent integration problems
		4 = Second trip echo and coherent integration problems.
		
	Reflectivity:  Radar reflectivity in dBz X 100.
		(Must divide by 100 to get dBz).
		
	MeanDopplerVelocity:  Mean doppler fall velocity in m/s X 1000.
		(Must divide by 1000 to get m/s).
		
	SpectralWidth:  Spectral width in m/s X 1000.
		(Must divide by 1000 to get m/s).
		
	ModeId:  Radar mode used for merged time-height moments data.
		The four modes and their merging are briefly described in 
		the NOAA/ETL MMCR summary.
		
	SignaltoNoiseRatio:  Signal to noise ratio in dB X 100.
		(Must divide by 100 to get dB).
		
NOTE: All of the above information is contained in each netCDF file header.