Log of file additions/changes/deletions in this Boulder_New directory.
For more information please contact Water Vapor Project Leader
Dale Hurst, NOAA/ESRL/Global Monitoring Division;  Dale.Hurst@noaa.gov

Data in these files are 0.25-km vertical averages centered on the listed altitudes.
For most flights the averages are presented separately for ascent and descent.
Water vapor mixing ratio averages based on combined ascent and descent data ("LEV" data)
are also reported in the "H2Omr_orig" column.

ALL FILES IN THIS DIRECTORY WERE PRODUCED ON OR AFTER SEPTEMBER 15, 2015
USING SKYSONDE PROCESSOR VERSION 0.2.5.7 (OR A LATER VERSION).

THE DATA WERE REPROCESSED AFTER APPLYING AN OPTIMAL OFFSET TO THE
RADIOSONDE PRESSURE DATA THAT WAS DETERMINED USING GPS ALTITUDE DATA. 
PRESSURE OFFSETS WERE APPLIED ONLY TO THOSE FLIGHTS WITH GPS DATA.

NOTE:THE FILE HEADERS HAVE CHANGED SIGNIFICANTLY, BUT VARIABLE NAMES 
AND UNITS REMAIN THE SAME. SOME FILES WERE STRIPPED OF POOR QUALITY OZONE DATA.
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LOG
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2016 SEP 14: Added or updated 7 older flights from 1995-2008. Number of flights = 460.
Added: 20020808, 20080107a, 20080107b
Updated: 19950928, 20041122, 20060822a, 20060822b

2016 JUL 21: Added or updated 40 older flights from 1991-2010. Number of Flights = 455.

2015 OCT 27: Newly reprocessed data uploaded. Number of Flights = 410.