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

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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

Identifier	DOI: https://doi.org/10.5065/D6542KW9
Data Quality	final
Versions	1.0 (2008-10-07)
Subscribe	Subscribe to receive email when new or updated data is available.
Related projects	GCIP/EAOP-99: GCIP Large Scale Area-East EAOP-99 WVSS: Water Vapor Sensing System GCIP/LSA-NW 99: GCIP Large Scale Area-North West EAOP-99 GCIP/EOP: GCIP Enhanced Observing Period BAMEX: Bow Echo and Mesoscale Convective Vortex Experiment 2003 GCIP/LSA-NW 00: GCIP Large Scale Area-North West EAOP-00 IHOP_2002: International H2O Project 2002
Spatial Type	point
Frequency	< 1 minute
Language	English
Categories	Aircraft Upper Air
Platforms	Aircraft
Instruments	Water Vapor Sensing System - WVSS
GCMD Science Keywords	ATMOSPHERIC PRESSURE MEASUREMENTS DEW POINT TEMPERATURE DEW POINT TEMPERATURE HUMIDITY MIXING RATIO RELATIVE HUMIDITY UPPER AIR TEMPERATURE Expand keywords
Documentation	wvss_readme.txt [9 KiB]
Related links	companion: 100.016: Aircraft Meteorological Data Reports (AMDAR) and Aircraft Communications Addressing and Reporting System (ACARS) Data

Temporal coverage

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

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 54.00, Minimum (South) Latitude: 24.00
Minimum (West) Longitude: -126.00, Maximum (East) Longitude: -66.00

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Additional contact information

author: EOL Data Support <datahelp@eol.ucar.edu>

Citation

Example citation following ESIP guidelines:

UCAR/NCAR - Earth Observing Laboratory. 2008. Water Vapor Sensing System (Winds, Temperatures, and Water Vapor Fields from Commercial Aircraft). Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6542KW9. Accessed 28 May 2023.

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