WARNING: the sonde correction tables given here have
been superseded by a more up to date set of tables
based on the new climatology produced by Labow, Loagan, and
McPeters in 2006. A paper describing the new climatology
will be published soon in JGR: paper # 2005JD006823
"Ozone climatological profiles for satellite retrieval algorithms"
by R. McPeters, G. Labow, and J. Logan.

the new table is available from this FTP site
ftp toms.gsfc.nasa.gov
cd pub/LLM_climatology
get the file: new sonde add-on table.txt


 ==================================================================
The two tables in this directory are those published in the following
paper, which has been accepted for publication in J. Geophys. Res. (as
of August 1996):


     An SBUV Ozone Climatology for Balloonsonde Estimation
                    of Total Column Ozone

                       R. D. McPeters
 NASA Goddard Space Flight Center, Greenbelt, Maryland

                        G. J. Labow
        Hughes STX Corporation, Greenbelt, Maryland

                       B. J. Johnson
NOAA Climate Monitoring and Diagnostic Laboratory, Boulder, Colorado


Abstract.  The standard technique for computing total column ozone from
a balloonsonde measurement includes an extrapolation of the measured ozone
profile to altitudes above the balloon burst altitude.  This total column
calculation can be improved by using a monthly average ozone climatology
based on ozone profile measurements from the Solar Backscattered Ultraviolet
(SBUV) instrument on the Nimbus-7 satellite.  For each month and 10 degree
latitude zone we provide the column ozone above thirty distinct pressure
levels in the middle and upper atmosphere (from 1 through 30 millibar) that
can be added to the measured balloon profile.  Use of this climatology
reduces the uncertainty in the column ozone estimate when the sonde data
are compared with simultaneous Dobson observations at Boulder and at
Mauna Loa.