Small Ice Detector Version 2 (SID-2H) Data https://data.eol.ucar.edu/dataset/96.009 Summary This dataset contains SID2H data collected during the PACDEX project. The Small Ice Detector, Version 2 (SID2H) is a particle light-scattering instrument for measuring size distributions of particles in the 1 to 70 micrometer size range and for discriminating between ice crystals and supercooled water droplets in mixed phase clouds. SID2H measures the intensity of light scattered by cloud particles in the forward direction. Measurements are recorded for each particle that crosses the instrument's laser beam. The SID2H data files are binary and come in 10-minute blocks; a new file is created every 10 minutes. Data records include timing events, light scattering intensity, and housekeeping (temperatures, laser power, etc.). The file structure has a header, data, and a footer. There is a detailed description in the document, "SID2 Software Interface .pdf" pages 26-29 and 67-75, accessible via the link below. Identifiers * Local archive identifier: 96.009 * doi:10.5065/D6QJ7FNH https://doi.org/10.5065/D6QJ7FNH Versions 1.0 Citation UCAR/NCAR - Earth Observing Laboratory. 2011. Small Ice Detector Version 2 (SID-2H) Data. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6QJ7FNH Accessed 29 Mar 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 * PACDEX: PACific Dust EXperiment https://data.eol.ucar.edu/project/PACDEX Additional information * Spatial Type: multiple * Frequency: continuous * Language: English Categories * Aircraft Platforms * NSF/NCAR GV HIAPER Instruments * SID - Small Ice Detector * SID-2H - Small Ice Detector Version 2 GCMD Science Keywords * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD LIQUID WATER/ICE * EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > HYDROMETEORS * EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL PARTICLE PROPERTIES Restrictions * authorization required Related links * info: PACDEX Missions https://catalog.eol.ucar.edu/pacdex/missions/missions.html * info: SID2H Documentation and Information https://www.eol.ucar.edu/instruments/small-ice-detector-version-2-hiaper * homepage: PACDEX main page https://www.eol.ucar.edu/field_projects/pacdex Temporal coverage * Begin datetime: 2007-04-29 16:11:00 * End datetime: 2007-05-24 23:59:59 Spatial coverage * Maximum (North) Latitude: 70.00 * Minimum (South) Latitude: 30.00 * Minimum (West) Longitude: 140.00 * Maximum (East) Longitude: -105.00 Primary contact information * pointOfContact: EOL Data Support https://data.eol.ucar.edu/contact/show/1 Additional contact information * author: EOL Data Support https://data.eol.ucar.edu/contact/show/1 * publisher: EOL Data Support https://data.eol.ucar.edu/contact/show/1 * resourceProvider: David C. Rogers https://data.eol.ucar.edu/contact/show/723 * principalInvestigator: Andrew Heymsfield https://data.eol.ucar.edu/contact/show/1173 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/96.009?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/96.009?format=isotc211