Giant Cloud Condensation Nuclei (CCN) Impactor Data https://data.eol.ucar.edu/dataset/552.048 Summary The NCAR/EOL/RAF Giant Cloud Condensation Nuclei Impactor (GNI) samples giant aerosol particles. This data set was acquired during the SOCRATES 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. Identifiers * Local archive identifier: 552.048 * doi:10.26023/HN9Y-HEMX-3C0J https://doi.org/10.26023/HN9Y-HEMX-3C0J Versions 1.0 Citation UCAR/NCAR - Earth Observing Laboratory. 2019. SOCRATES: Giant Cloud Condensation Nuclei (CCN) Impactor Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/HN9Y-HEMX-3C0J Accessed 19 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 * SOCRATES: Southern Ocean Clouds Radiation Aerosol Transport Experimental Study https://data.eol.ucar.edu/project/SOCRATES Additional information * Spatial Type: raster * Frequency: no set schedule * Language: English Categories * Aerosols Platforms * NSF/NCAR GV HIAPER Instruments * Automatic Giant Nuclei Impactor - AutoGNI GCMD Science Keywords * EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD CONDENSATION NUCLEI * EARTH SCIENCE > ATMOSPHERE > AEROSOLS > CLOUD CONDENSATION NUCLEI Related links * info: SOCRATES Missions http://catalog.eol.ucar.edu/socrates/tools/missions Temporal coverage * Begin datetime: 2018-01-01 00:00:00 * End datetime: 2018-02-28 23:59:59 Spatial coverage * Maximum (North) Latitude: -30.00 * Minimum (South) Latitude: -70.00 * Minimum (West) Longitude: 130.00 * Maximum (East) Longitude: 180.00 Primary contact information * pointOfContact: EOL Data Support https://data.eol.ucar.edu/contact/show/1 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/552.048?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/552.048?format=isotc211