Giant Cloud Condensation Nuclei (CCN) Impactor Data

The NCAR/EOL/RAF Giant Cloud Condensation Nuclei Impactor (GNI) samples giant aerosol particles. This data set was acquired during the SPICULE project. Slides were exposed in the free air stream onto uncoated polycarbonate microscope slides. The slides were analyzed in the NCAR/EOL/RAF GNI slide chamber, using a dual-optical microscope. Slides were inserted into the humidified chamber with a relative humidity of 89.8 %. The images were analyzed using an automated edge detection algorithm, and using spherical cap geometry to determine the solution drop volume. Subsequently, the equivalent dry NaCl equivalent radius was determined using the Kohler equation for concentrated solutions, specifically Pruppacher and Klett, 1978, eq. 6.26b, using a full chemical potential calculation.

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Temporal Range

  • Begin:  2021-04-26T00:00:00Z
    End:  2021-06-30T23:59:59Z

Keywords

Resource Type dataset
Temporal Range Begin 2021-04-26T00:00:00Z
Temporal Range End 2021-06-30T23:59:59Z
Temporal Resolution N/A
Bounding Box North Lat 41.00000
Bounding Box South Lat 37.00000
Bounding Box West Long -109.00000
Bounding Box East Long -102.00000
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format TAR: Unix Tape ARchive (TAR) Format File (application/x-tar)
Standardized Resource Format Archive
Asset Size 1 MB
Legal Constraints

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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 UCAR/NCAR - Earth Observing Laboratory
Publisher UCAR/NCAR - Earth Observing Laboratory
Publication Date 2021-08-12T16:13:11
Digital Object Identifier (DOI) https://doi.org/10.26023/C70R-BFS8-4M0J
Alternate Identifier 605.013
Resource Version 1.0
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2024-02-07T22:44:31Z
Metadata Record Identifier edu.ucar.eol::605.013
Metadata Language eng; USA
Suggested Citation UCAR/NCAR - Earth Observing Laboratory. (2021). Giant Cloud Condensation Nuclei (CCN) Impactor Data. 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/C70R-BFS8-4M0J. Accessed 22 November 2024.

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