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Earth Observing Laboratory
Field Data Archive

NSF/NCAR C-130 3V-CPI Raw CPI ROI Imagery

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Summary

The Three-View Cloud Particle Imager (3V-CPI) is a combination of three imaging instruments. Two of them comprise a 2D-S instrument, in which two 2D probes image particles as they pass through beams that are oriented orthogonally to each other and the airflow. If particles also lie in the intersection of the sensitive areas of the two beams, they are seen by both 2D probes. In that case, the CPI is triggered to take a high-resolution picture, via a briefly illuminated high-resolution imaging array, to provide a third image at high resolution. The probe is particularly suited to imaging ice crystals, but also provide good detection of other hydrometeors including large cloud droplets, drizzle and small rain drops, and precipitation particles.

The 3V-CPI measures the size, shape and concentration of water drops and ice particles in clouds in the size range of 15-250 µm. This dataset contains CPI roi images collected by the 3V-CPI aboard the NSF/NCAR C130 N130AR during the ICE-T project.

For all of the flights, the CPI makes as many *.roi files as it needs; each file can be maximum 92Mb size and then a new file is opened.

Data access

  • ORDER data for delivery by FTP

Additional information

Identifier
Data Quality final
Versions
  • 1.0 (2011-11-14)
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Related projects
Spatial Type raster
Frequency continuous
Language English
Categories
Platforms
Instruments
GCMD Science Keywords Expand keywords
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Temporal coverage

Begin datetime 2011-07-01 00:00:00
End datetime 2011-07-31 23:59:00

Spatial coverage


Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 40.00, Minimum (South) Latitude: -10.00
Minimum (West) Longitude: -90.00, Maximum (East) Longitude: -40.00

Primary point of contact information

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

Additional contact information

Citation

UCAR/NCAR - Earth Observing Laboratory, Jensen, J. 2011. NSF/NCAR C-130 3V-CPI Raw CPI ROI Imagery. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6PC30QG. Accessed 13 Dec 2024.

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NSF

This material is based upon work supported by the NSF National Center for Atmospheric Research, a major facility sponsored by the U.S. National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.