45 1001
Gary, Bruce L. (JPL) &  Roland Chan (ARC) and Paul Bui (ARC)
M/S 246-101; JPL; Pasadena, CA 91109; bgary@jpl.nasa.gov
ER-2 Microwave Temperature Profiler (JPL) & Meteorology Measurement System (ARC)
POLARIS
1 1
1997 04 22  1997 04 23  {FLT DATE & REDUCTION DATE}
0.0
Sequence number
8                                     {NV = number of primary variables}
1      1 1    1    1    1   1 1       {scale factors for primary variables}
999999 9 99.9 99.9 99.9 999 9 999999  {missing values for primary variables}
Date [YYMMDD]
Event code: 1=ascent, 2=dip1, 3=dip2, 4=descent
Tropopause pressure altitude [km]
Positive uncertainty [km]
Negative uncertainty [km]
Theta of tropopause [K]
Source: 0=MMSonly, 1=MMSmostly, 2=MTP&MMS, 3=MTPmostly, 4=MTPonly
Date of last revision, in YYMMDD format
5                     {number of special comment lines after this line}
Following notes refer to trop event "sequence number" in body of this file.
1:  MTP & MMS agree.
3,4: MTP didn't work; exclusively MMS trop
6: Two trop's, the "real" one is at 14.6 km (false one at 17.9 km)

18                     {number of normal comment lines after this one}
Here's a brief tutorial on what follows:
1st column is a monotonic sequence # (also used to reference special comments)
2nd column is date of flight, YYMMDD format
3rd column is code for ascent (1), 1st dip (2), 2nd dip (3) & descent (4)
4th column is tropopause pressure altitude [km]
5th column is +SE of tropopause altitude [km]
6th column is -SE of tropopause altitude [km]
7th column is potential temperature at the tropopause [K]
8th column shows relative reliance on MTP & MMS:
  where 0=MMS only, 1=MMS mostly, 2=MTP & MMS, 3=MTP mostly, 4=MTP only
9th column is revision date for this line of data

                                           4=MTPonly 
              1=ASC                        3=MTPmstly
      FLT     2=DIP                        2=MTP&MMS 
      DATE    3=DIP  TROP                  1=MMSmstly  Revision
Seq#  YYMMDD  4=DSC  PALT  SE+  SE- THETA  0=MMSonly   Date

   1  970416  1      12.2  0.1  0.1  331   1           970416
   2  970416  4      12.1  0.1  0.1  336   1           970416
   3  970418  1      11.8  0.1  0.4  333   0           970420
   4  970418  4      11.6  0.2  0.2  330   0           970420
   5  970422  1      11.7  0.1  0.1  335   0           970423
   6  970422  2      14.6  0.6  0.8  360   4           970423
   7  970422  4      11.7  0.1  0.1  335   0           970423