VOCALS Giant Cloud Condensation Nuclei (CCN) Impactor Data
https://data.eol.ucar.edu/dataset/89.175

Summary
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.

Identifiers
 * Local archive identifier: 89.175
 * doi:10.5065/D6NZ862W
   https://doi.org/10.5065/D6NZ862W

Versions
  1.0

Citation
 Jensen, J. 2016. VOCALS Giant Cloud Condensation Nuclei (CCN) Impactor Data.
 Version 1.0. UCAR/NCAR - Earth Observing Laboratory.
 https://doi.org/10.5065/D6NZ862W Accessed 23 Apr 2024.

Additional citation styles can be generated by entering the DOI
at CrossCite (https://citation.crosscite.org/).

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
 * VOCALS: VAMOS Ocean-Cloud-Atmosphere-Land Study
   https://data.eol.ucar.edu/project/VOCALS

Additional information
 * Spatial Type: raster
 * Frequency: no set schedule
 * Language: English

Categories
 * Aircraft

Platforms
 * NSF/NCAR C-130

Instruments
 * Giant Nuclei Impactor - GNI

GCMD Science Keywords
 * EARTH SCIENCE > ATMOSPHERE > AEROSOLS > CLOUD CONDENSATION NUCLEI
 * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD CONDENSATION NUCLEI

Related links
 * companion: 89.177: Giant Cloud Condensation Nuclei (CCN) Impactor Raw Data
   https://data.eol.ucar.edu/dataset/89.177
 * info: VOCALS Missions
   http://catalog.eol.ucar.edu/vocals/missions/missions.html
 * info: VOCALS Data Policy
   https://www.eol.ucar.edu/content/vocals-data-policy-draft
 * homepage: VOCALS Homepage
   https://www.eol.ucar.edu/field_projects/vocals
 * info: VOCALS Project Missions
   https://catalog.eol.ucar.edu/vocals/missions/missions.html

Temporal coverage
 * Begin datetime: 2008-10-01 00:00:00 
 * End datetime: 2008-11-30 23:59:00 

Spatial coverage
 * Maximum (North) Latitude: -15.00
 * Minimum (South) Latitude: -30.00
 * Minimum (West) Longitude: -90.00
 * Maximum (East) Longitude: -70.00

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

Additional contact information
 * principalInvestigator (DataCollector): Jorgen Jensen <jbj@ucar.edu>
   https://data.eol.ucar.edu/contact/show/54

Alternate metadata formats
 * DataCite: https://data.eol.ucar.edu/dataset/89.175?format=datacite
 * ISO/TC 211: https://data.eol.ucar.edu/dataset/89.175?format=isotc211