VOCALS 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 VOCALS 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. For a detailed description, see two manuscripts in preparation by Jensen et al., available from the author.

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Temporal Range

  • Begin:  2008-10-01T00:00:00Z
    End:  2008-11-30T23:59:00Z

Keywords

Resource Type dataset
Temporal Range Begin 2008-10-01T00:00:00Z
Temporal Range End 2008-11-30T23:59:00Z
Temporal Resolution N/A
Bounding Box North Lat -15.00000
Bounding Box South Lat -30.00000
Bounding Box West Long -90.00000
Bounding Box East Long -70.00000
Spatial Representation N/A
Spatial Resolution N/A
Related Links

89.177 : is a companion to dataset 89.175
Additional Information N/A
Resource Format TAR: Unix Tape ARchive (TAR) Format File (application/x-tar)
Standardized Resource Format Archive
Asset Size 4 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 Jorgen Jensen
Publisher UCAR/NCAR - Earth Observing Laboratory
Publication Date 2016-09-29T22:51:35
Digital Object Identifier (DOI) https://doi.org/10.5065/D6NZ862W
Alternate Identifier 89.175
Resource Version 1.0
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2024-03-08T22:01:23Z
Metadata Record Identifier edu.ucar.eol::89.175
Metadata Language eng; USA
Suggested Citation Jorgen Jensen. (2016). VOCALS Giant Cloud Condensation Nuclei (CCN) Impactor Data. 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6NZ862W. Accessed 28 November 2024.

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