Overview:

PISTON stands for the Propagation of Intra-Seasonal Tropical OscillatioN was conducted 
in the August-October 2018 period over the northern Western Pacific tropical region.
While numerous tropical intra-seasonal oscillations exist, PISTON will primarily target 
the Boreal Summer Intraseasonal Oscillation (BSISO). The BSISO defines the northward 
and eastward movement of the Asian monsoon during northern-hemispheric (boreal) summertime. 
This oscillation has been observed to impact weather across the Maritime Continent and into 
the southeastern portions of continental Asia, and even weather within the United States. 
The BSISO is rather complex, and PISTON is therefore an extensive field campaign, involving 
both intensive numerical modeling and observational activities. 


read_edt.f95           - fortran program for reading edt (L0) ASCII data
read_upaL2_eol.f       - fortran program for reading L2 and L3 ASCII data
read_upaL4.f           - fortram program for reading L4 ASCII data
PISTON_sonde_qc_V0.pdf - QC documentation

directory 

level 0             - raw ASCII hi-res data (edt format at Thompson and Mirai) 
level 1             - ASCII hi-res data in csv format
level 2             - ASCII hi-res data in NCAR EOL format
level 3             - ASCII hi-res data in NCAR EOL format with corrections if needed
level 4             - ASCII data in uniform 5-hPa vertical resolution with QC flags 
netcdf              - level 3 and 4 data in netcdf format
skewts              - skewt plots and sounding parameters for all sites and soundings