5hPa Resolution Radiosonde Composite
https://data.eol.ucar.edu/dataset/651.013

Summary
5 hPa vertical resolution radiosonde data from research and operational
sources during the ICECHIP (In-situ Collaborative Experiment for the
Collection of Hail In the Plains) campaign converted into a common format (EOL
Sounding Composite format which is a columnar ASCII format). The composite
includes data from radiosondes from locations around the central United
States. The radiosondes were released by the mobile Northern Illinois
University system (five second resolution) and NOAA/NWS (28 sites at one
second resolution). A total of 2188 radiosondes are included in this dataset.

Most NWS stations had typical releases times of 00 and 12 UTC. However, a
number of stations had variations on this schedule during ICECHIP. NIU Black
released radiosondes during ICECHIP IOP operations.

Identifiers
 * Local archive identifier: 651.013
 * doi:10.26023/SZR8-PR8V-HC0P
   https://doi.org/10.26023/SZR8-PR8V-HC0P

Versions
  1.0: Includes NWS and NIU Black radiosondes.

Citation
 NSF NCAR Earth Observing Laboratory. 2026. ICECHIP: 5hPa Resolution
 Radiosonde Composite. Version 1.0. NSF NCAR Earth Observing Laboratory.
 https://doi.org/10.26023/SZR8-PR8V-HC0P Accessed 30 Apr 2026.

Additional citation styles can be generated by entering the DOI
at CrossCite (https://citation.doi.org/).

Acknowledgement
In addition to the citation reference and any other acknowledgements,
please acknowledge NSF NCAR EOL in your publications with text such as:

  Data provided by NCAR EOL under the sponsorship of
  the National Science Foundation.
  https://data.eol.ucar.edu/

Related projects
 * ICECHIP: In-situ Collaborative Experiment for the Collection of Hail In the
Plains
   https://data.eol.ucar.edu/project/ICECHIP

Additional information
 * Frequency: criteria
 * Language: English

Categories
 * Upper Air

Platforms
 * Radiosondes
 * Sounding Composite

Instruments
 * Radiosondes

GCMD Science Keywords
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR PROFILES
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CONVECTIVE CLOUDS/SYSTEMS (OBSERVED/ANALYZED) > PRECIPITATING CONVECTIVE CLOUD SYSTEMS
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND PROFILES > WIND DIRECTION PROFILES
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND PROFILES > WIND VELOCITY/SPEED PROFILES
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE > BOUNDARY LAYER TEMPERATURE
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > U/V WIND COMPONENTS
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE > VERTICAL PROFILES
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > DEW POINT TEMPERATURE
 * EARTH SCIENCE > ATMOSPHERE > WEATHER EVENTS > HAIL STORMS
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > ATMOSPHERIC PRESSURE MEASUREMENTS
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE > DEW POINT TEMPERATURE
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CONVECTIVE CLOUDS/SYSTEMS (OBSERVED/ANALYZED) > DEEP CONVECTIVE CLOUD SYSTEMS
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > BOUNDARY LAYER WINDS
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > WIND DIRECTION
 * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > WIND SPEED

Documentation
 * ICECHIP_5hPa_Resolution_Radiosonde_Composite.pdf [7 MiB]
   https://data.eol.ucar.edu/file/download/55F8307E21E89/ICECHIP_5hPa_Resolution_Radiosonde_Composite.pdf

Restrictions
 * authorization required

Related links
 * homepage: ICECHIP EOL Homepage
   https://www.eol.ucar.edu/field_projects/icechip
 * info: ICECHIP Data policy
   https://www.eol.ucar.edu/node/31965
 * info: ICECHIP Missions
   https://catalog.eol.ucar.edu/icechip/missions

Temporal coverage
 * Begin datetime: 2025-05-16 00:00:00 
 * End datetime: 2025-06-29 23:59:59 

Spatial coverage
 * Maximum (North) Latitude: 48.206
 * Minimum (South) Latitude: 25.916
 * Minimum (West) Longitude: -111.82
 * Maximum (East) Longitude: -88.112

Primary contact information
 * pointOfContact: EOL Data Support <datahelp@eol.ucar.edu>
   https://data.eol.ucar.edu/contact/show/1

Additional contact information
 * author: EOL Data Support <datahelp@eol.ucar.edu>
   https://data.eol.ucar.edu/contact/show/1

Alternate metadata formats
 * DataCite: https://data.eol.ucar.edu/dataset/651.013?format=datacite
 * ISO/TC 211: https://data.eol.ucar.edu/dataset/651.013?format=isotc211