Skip to data content Skip to data search

Reference Radiosonde Data [NCAR/EOL]



During the International H20 Project 2002 (IHOP 2002), Reference Radiosondes were released sixteen times. Either a Vaisala RS80 radiosonde released from the Homestead site or a National Weather Service (NWS) VIZ radiosonde released from Dodge City, KS accompanied the Reference Radiosondes during their flights. Consult the README for dates and times when the Reference Sondes were released and from which site sondes were released simultaneously. There are some issues with the Reference Radiosonde data. The following is just a summary. For a more detailed explanation please see the "Important Notes to Users" section in the readme file. Pressure Errors: The Reference Sonde (RS) uses a hypsometer to measure pressure, and this sensor hasbeen found to be unreliable. We suggest not using the RS pressure data. Time difference: The time difference in the launch time between the RS sounding files and the VIZ/Vaisala soundings is due to the RS recording data on the ground, while the other sondes began recording closer to, or at, the actual launch time. Wind data: The RS wind data were not corrected for balloon pendulum swing because the effects of the balloon swing are large, they vary from sounding to sounding, and because the focus of the RS for IHOP was on the humidity measurements.

Data access

  • ORDER data for delivery by FTP

Additional information

Data Quality final
  • 1.0 (2008-10-07)
Subscribe Subscribe to receive email when new or updated data is available.
Related projects
Spatial Type point
Frequency no set schedule
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2002-05-10 00:00:00
End datetime 2002-06-23 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 42.00, Minimum (South) Latitude: 32.00
Minimum (West) Longitude: -106.00, Maximum (East) Longitude: -91.00

Primary point of contact information

EOL Data Support <>

Additional contact information


UCAR/NCAR - Earth Observing Laboratory. 2008. Reference Radiosonde Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 22 Jun 2024.

Today's date is shown: please replace with the date of your most recent access.

Additional citation styles

The citation text below is from the DataCite Content Resolver service and may take a few seconds to load. The styles and locales are obtained from CrossCite, which also provides a citation formatter. See ReFindit for another alternative. Formatting is not perfect: please verify and edit before use. Today's date is shown: please replace with the date of your most recent access.

Style: Locale:

Ancillary information

Metadata download

Note that your browser may not display the above metadata links, but automatically save them as files in a folder such as "Downloads"