Readme_upaL1 

 Date: 18 March 2016    

OLYMPEX Level 1 Upper-air upsonde sounding data: data in ASCII format

L1 is high-vertical resolution (1-2s) data (at all sites except CYZT) with no post-processing quality 
control applied. All soundings are in NCAR gls format. 

High vertical resolution data are available for following four sites:

site type           name                  identifier     lat.  long.   elev   # of       sonde type       
                                                                        (m)  soundings

enhanced           EnvC, BC, Canada                     48.46 -123.30    60     71      Vaisala RS92     
enhanced           NPOL, WA,                            47.28 -124.21   144     99      Vaisala RS92     
NWS operational    Quillayute, WA, USA   KUIL, 72797    47.93 -124.56    57    162      Vaisala RS92     
NWS operational    Salem, OR, USA        KSLE, 72694    44.91 -123.01    62    160      Sippican Mark II 

GTS resolution data is available at the following site:

 WS operational    Port Hardy, BC, Canada CYZT, 71109   50.68 -127.36    17    160      Vaisala RS92    

Notes:

- files for each site have been tarred and gzipped into a single file 

- read_upaL1_gls.f - fortran program to read L1 data in GLS format

- time field in CYZT file is approximated by assuming rise rate of 4 m/s

- lat./lon. fields in CYZT file are merely lat./lon. position at launch point

- KUIL NWS site experienced a power failure and has no data from 12Z 17 Dec. to 12Z 28 Dec. 2015

- The fully QC'ed sounding dataset (L1-L4):
  - Level 1 (all data in common ASCII format)
  - Level 2 (hi-res with APSEN QC processing)
  - Level 3 (checked to see if corrections are needed)
  - Level 4 (hi-res data put 5-hP uniform resolution with QC flags)

- the dropsonde data will be Qc'ed by NCAR EOL 

- the upsodne data will be Qc'ed by CSU 

Refer questions regarding upsonde data to Paul Ciesielski (paulc@atmos.colostate.edu)