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Earth Observing Laboratory
Field Data Archive

Holographic Detector for Clouds (HOLODEC) IOP1

Project:

Summary

This dataset contains measurements of cloud particle size distributions collected during the ACE-ENA (IOP1) project using an airborne holographic instrument mounted on the DOE G1. The HOLODEC-II is a second-generation version of a holographic detecter designed to determine the size, two-dimensional shape, and three-dimensional position of hydrometeors via digital in-line holography. Advantages vs other hydrometeor detectors are that the sample volume is not size dependent, relative positions of hydrometeors in the sample volume can be determined in three dimensions, and effects produced by shattering from the aperture edges can be identified and eliminated. Automated analysis programs have been developed to process the holograms collected and produce size distributions. HOLODEC-II has sufficient resolution to determine the sizes and locations of cloud droplets as well as ice crystals.

A separate dataset (562.001) has been created for IOP2. Please see the link below to access the ACE-ENA IOP2 dataset page.

Data access

  • ORDER data for delivery by FTP

Additional information

Identifier
Data Quality final
Versions
  • 1.0 (2021-08-26)
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Related projects
Frequency continuous
Language English
Platforms
Instruments
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2017-06-15 00:00:00
End datetime 2018-02-28 23:59:59

Spatial coverage


Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 40.00, Minimum (South) Latitude: 38.00
Minimum (West) Longitude: -30.00, Maximum (East) Longitude: -28.00

Primary point of contact information

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

Citation

UCAR/NCAR - Earth Observing Laboratory. 2021. Holographic Detector for Clouds (HOLODEC) IOP1. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/MD6C-CPHF-4E0S. Accessed 08 Dec 2024.

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Ancillary information

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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.