HVPS-3 -- ICARTT format
https://data.eol.ucar.edu/dataset/638.015

Summary
The HVPS-3 instrument, or High Volume Precipitation Spectrometer, is an open
path optical array probe. Unlike the 2D-S, the HVPS has a single channel,
which images cloud particles between about 150 microns - 19 mm in size, with
150 micron resolution, as they pass through the instrument sample volume. This
imagery is used to calculate the concentration and cross-sectional area size
distributions, and to estimate the mass size distribution of the observed
cloud and precipitation particles. These variables are integrated across the
size bins to obtain the total concentration, extinction, and estimated total
water content over the observed size range, and is provided at a frequency of
1 Hz. The particle imagery can be utilized to infer cloud particle phase. This
data does not cover the full size range of cloud particles, and should be
analyzed in conjunction with complementary cloud probes, such as the CDP, 2D-S
or 2DC, etc. This dataset contains HVPS-3 imagery collected aboard the NCAR
C-130 during the CAESAR project.

Identifiers
 * Local archive identifier: 638.015

Versions
  0.1

Citation
 Woods, S. 2024. HVPS-3 -- ICARTT format. Version 0.1 [PRELIMINARY]. UCAR/NCAR
 - Earth Observing Laboratory. https://data.eol.ucar.edu/dataset/638.015
 Accessed 27 Jul 2024.

If you plan to cite this dataset in a publication, please email us at:
 datahelp@eol.ucar.edu
We may be able to provide an updated citation that includes a DOI.

Acknowledgement
In addition to the citation reference and any other acknowledgements,
please acknowledge 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
 * CAESAR: Cold Air Outbreak Experiment in the Sub-Arctic Region
   https://data.eol.ucar.edu/project/CAESAR

Additional information
 * Spatial Type: point
 * Frequency: 1 second
 * Language: English

Categories
 * Aircraft

Platforms
 * NSF NCAR C-130

Instruments
 * HVPS-3 - High Volume Precipitation Spectrometer 3

GCMD Science Keywords
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD LIQUID WATER/ICE
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > PARTICLE SIZE DISTRIBUTION
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD DROPLET CONCENTRATION/SIZE
 * EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > HYDROMETEORS
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD DROPLET DISTRIBUTION

Restrictions
 * authorization required
 * EULA: EULA.html [0 KiB]
   https://data.eol.ucar.edu/file/download/55808D7389D68/EULA.html

Related links
 * companion: 638.030: HVPS-3 Imagery -- png format
   https://data.eol.ucar.edu/dataset/638.030

Temporal coverage
 * Begin datetime: 2024-02-09 15:52:21 
 * End datetime: 2024-04-03 16:02:41 

Spatial coverage
 * Maximum (North) Latitude: 82.00
 * Minimum (South) Latitude: 66.00
 * Minimum (West) Longitude: -14.00
 * Maximum (East) Longitude: 24.00

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

Additional contact information
 * author: Sarah Woods <sfwoods@ucar.edu>
   https://data.eol.ucar.edu/contact/show/3123

Alternate metadata formats
 * DataCite: https://data.eol.ucar.edu/dataset/638.015?format=datacite
 * ISO/TC 211: https://data.eol.ucar.edu/dataset/638.015?format=isotc211