Water Vapor Sensing System (Winds, Temperatures, and Water Vapor Fields from Commercial Aircraft) [NCAR/EOL]

Summary

This data set contains the JOSS quality controlled WVSS-I data. This data has consistent water vapor information (dewpoint, RH, and mixing ratio are consistent), and has the benefit of time continuity to check for changes in WVSS-I calibration. IMPORTANT NOTE: The sensor technology of the first generation Water Vapor Sensing System (WVSS-I) is Vaisala's thin-film capacitor. Though a better sensor than found on radiosondes, it still loses calibration over time. The data from WVSS-I gathered from July 1, 1999 to December 31, 1999 has been evaluated and a scientific article is being prepared. This data is useful with data from four of the six aircraft considered quite good. One aircraft (#376) appears approximately 5% too wet and one aircraft (#441) appears approximately 5% too dry (very dry in November and December 1999). See the README for further information.

Data access

ORDER data for delivery by FTP

Additional information

Related projects: BAMEX, GCIP/EAOP-99, GCIP/EOP, GCIP/LSA-NW 00, GCIP/LSA-NW 99, IHOP_2002, WVSS
Observational frequency: < 1 minute
Spatial type: point
Categories: Aircraft
Platforms: Aircraft, WVSS
Documentation: wvss_readme.txt [9 KB]

Temporal coverage

Begin datetime: 1999-07-01 00:00:00, End datetime: 2003-07-31 23:59:59

Spatial coverage

Minimum latitude: 24.000000, Minimum longitude: -126.000000
Maximum latitude: 54.000000, Maximum longitude: -66.000000

Point of contact

NCAR/EOL
Codiac Support
E-Mail address: codiac at ucar dot edu
Homepage: http://data.eol.ucar.edu/