Fast 2D-S Data and Imagery

A 2D-S instrument is a cloud particle probe that contains two orthogonal open path optical array probes, which image cloud particles between about 10 microns - 2 mm in size 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 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, HVPS, etc. This dataset contains Fast 2D-S data and imagery collected aboard the NCAR C-130 during the CAESAR project.

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  • EOL Data Support
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Temporal Range

  • Begin:  2024-02-28T11:40:21Z
    End:  2024-04-03T16:00:00Z

Keywords

Resource Type dataset
Temporal Range Begin 2024-02-28T11:40:21Z
Temporal Range End 2024-04-03T16:00:00Z
Temporal Resolution N/A
Bounding Box North Lat 82.00000
Bounding Box South Lat 66.00000
Bounding Box West Long -14.00000
Bounding Box East Long 24.00000
Spatial Representation grid
Spatial Resolution N/A
Related Links

Documentation #1 : README_CAESAR_OAPs.pdf
Additional Information N/A
Resource Format NetCDF: Network Common Data Form (application/x-netcdf)
Portable Network Graphics (PNG) in tar archive
Standardized Resource Format NetCDF
Image
Asset Size 746 MB
Legal Constraints

none
Access Constraints none
Software Implementation Language N/A

Resource Support Name EOL Data Support
Resource Support Email datahelp@eol.ucar.edu
Resource Support Organization UCAR/NCAR - Earth Observing Laboratory
Distributor UCAR/NCAR - Earth Observing Laboratory
Metadata Contact Name EOL Data Support
Metadata Contact Email datahelp@eol.ucar.edu
Metadata Contact Organization UCAR/NCAR - Earth Observing Laboratory

Author Sarah Woods
Publisher UCAR/NCAR - Earth Observing Laboratory
Publication Date 2025-04-17T14:57:49
Digital Object Identifier (DOI) https://doi.org/10.26023/NFNP-51FQ-VX00
Alternate Identifier 638.014
Resource Version 1.0
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-05-09T20:14:13Z
Metadata Record Identifier edu.ucar.eol::638.014
Metadata Language eng; USA
Suggested Citation Sarah Woods. (2025). Fast 2D-S Data and Imagery. 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/NFNP-51FQ-VX00. Accessed 23 May 2025.

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