#########################################################################
# This README file provides general information about the wind datasets available
# in the Atmospheric NetCDF data archive (wind-datasets/atmos-nc-dataset)
#
# 	This archive is hosted by the SSEC at UW-Madison.
# 	This archive is managed by NOAA/NESDIS/STAR. Team members include:
# 		Katherine Lukens (STAR, UMD/ESSIC/CISESS)
# 		Kevin Garrett (STAR)
# 		Kayo Ide (UMD)
# 		Ross N. Hoffman (STAR, UMD/ESSIC/CISESS)
# 		David Santek (CIMSS at UW-Madison)
# 		Brett Hoover (IMSG at NOAA/NCEP/EMC)
#
#	For questions, please contact: Dr. Katherine Lukens at katherine.lukens@noaa.gov
#
# Last updated: 2022-09-12	Katherine E. Lukens	NOAA/NESDIS/STAR
#
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Size of Archive, as of last update of this README file
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../aircraft	= 5.0 Gb
../AMV		= 649 Gb
../Loon		= 9.0 Gb
../radiosonde   = 4.7 Gb

====================================
GENERAL INFORMATION
====================================

Atmospheric data files containing AMVs, aircraft, and radiosonde observations are converted from NCEP BUFR and saved in 6-hr NetCDF files.

To view NetCDF:
	Use 'ncl_filedump FILENAME' on command line to view metadata information.
	Use 'ncview FILENAME' on command line to view variables graphically.

Glossary of select terms used in this document:
	DD		= day
	{DSET}		= wind dataset name (i.e., aircraft, AMV, Loon, radiosonde)
	{MAIN}		= main data archive path
	MM		= month
	YYYY 		= year

====================================
PATHS 
====================================

Main archive {MAIN}								/atmos-nc-dataset

Data are found following this path structure:					{MAIN}/{DSET}/YYYY/MM/DD/
  
  For Aircraft, AMV, radiosonde, the cccompanying prepBUFR table location is:	{MAIN}/{DSET}

====================================
NOTES
====================================

1. Some files/directories for each dataset may be missing. This is normal and due to the corresponding source files being unavailable.
2. Loon: Data are reformatted into 6-h chunks centered around NOAA NWP analysis times (00,06,12,18 UTC).
3. Loon: In the original files available on Zenodo (https://zenodo.org/record/5119968#.YxuRR3bMJPY), some adjacent obs are duplicates (due to instrumentation/data processor). 
         Loon data saved in this archive have the duplicate obs omitted.

====================================

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