SPICULE: 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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|GCMD Science Keywords|
|Begin datetime||2021-04-26 00:00:00|
|End datetime||2021-06-30 23:59:59|
Map data from IBCSO, IBCAO, and Global Topography.
Maximum (North) Latitude:
Minimum (South) Latitude:
Minimum (West) Longitude: -109.00, Maximum (East) Longitude: -102.00
CitationExample citation following ESIP guidelines:
UCAR/NCAR - Earth Observing Laboratory. 2021. SPICULE: Giant Cloud Condensation Nuclei (CCN) Impactor Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/C70R-BFS8-4M0J. Accessed 13 Aug 2022.
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