Low Rate (LRT - 1 sps) Navigation, State Parameter, and Microphysics Flight-Level Data https://data.eol.ucar.edu/dataset/490.002 Summary This data set includes airborne measurements obtained from the NSF/NCAR HIAPER GV aircraft (Tail Number N677F) during the ORCAS (The O2/N2 Ratio and CO2 Airborne Southern Ocean Study) project. This dataset contains low rate navigation, state parameter, and microphysics flight-level data in netCDF format. Note: Due to a timeserver problem, there is no data available for RF12, and the data for RF13 is only available for the second half of the flight. Identifiers * Local archive identifier: 490.002 * doi:10.5065/D65T3HWR https://doi.org/10.5065/D65T3HWR Versions 0.1 0.2: New files for all flights (include TF) with 2DC vars instead of 1DC 1.0: Includes Ht above terrain post-processing 1.1: Version 1.1 has corrected 2DC data (variables CONC2DCA_LWO, DBAR2DCA_LWO, and PLWC2DCA_LWO). No other data has been changed. It was discovered that all particles in a single buffer were time-stamped with the data-system time tag of the end off the buffer. For concentrations above 5-10/L, or when in heavy cloud, the system writes multiple buffers per second so the time-stamp will be very close to accurate. When a buffer spans multiple seconds, all the particles were previously binned to the second of the end time-stamp for the buffer. This has now been corrected so data is timestamped across the time-period of the buffer correctly. In addition, V1.1 changes 2D processing from reconstruction to center-in. Citation UCAR/NCAR - Earth Observing Laboratory. 2018. ORCAS: Low Rate (LRT - 1 sps) Navigation, State Parameter, and Microphysics Flight-Level Data. Version 1.1. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D65T3HWR Accessed 24 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 * ORCAS: The O2/N2 Ratio and CO2 Airborne Southern Ocean (ORCAS) Study https://data.eol.ucar.edu/project/ORCAS Additional information * Spatial Type: point * Frequency: 1 second * Language: English Categories * Aircraft Platforms * NSF/NCAR GV HIAPER Instruments * 2DC - Two-Dimensional Optical Array Cloud Probe * CDP - Cloud Droplet Probe * Condensation Nuclei Counter - CNC * GPS Receivers * Inertial Navigation System - INS * PMS - Particle Measuring System * PMS King Probe * UHSAS - Ultra-High Sensitivity Aerosol Spectrometer * VCSEL - Vertical-Cavity Surface-Emitting Laser GCMD Science Keywords * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR PROFILES * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > BOUNDARY LAYER WINDS * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > FLIGHT LEVEL WINDS * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > DEW POINT TEMPERATURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > DEICED TEMPERATURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > ABSOLUTE HUMIDITY * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS > VERTICAL WIND VELOCITY/SPEED * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD DROPLET CONCENTRATION/SIZE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE > BOUNDARY LAYER TEMPERATURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS > TURBULENCE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS > HORIZONTAL WIND VELOCITY/SPEED * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > PARTICLE SIZE DISTRIBUTION * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > ATMOSPHERIC PRESSURE MEASUREMENTS * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE > DEW POINT TEMPERATURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > VAPOR PRESSURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE > VIRTUAL TEMPERATURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD LIQUID WATER/ICE * EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD DROPLET DISTRIBUTION * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > U/V WIND COMPONENTS * EARTH SCIENCE > ATMOSPHERE > AEROSOLS * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > STATIC PRESSURE Related links * companion: 490.003: Flight Tracks (Google Earth .kml files) https://data.eol.ucar.edu/dataset/490.003 * companion: 490.010: Low Rate (LRT - 1 sps) Navigation, State Parameter, and Microphysics Flight-Level Data - ICARTT format https://data.eol.ucar.edu/dataset/490.010 * info: Example Production Output netCDF File Header (Low Rate) https://www.eol.ucar.edu/content/example-production-output-netcdf-file-header-low-rate-11 * info: ORCAS Missions http://catalog.eol.ucar.edu/orcas/tools/missions * homepage: ORCAS Project Homepage https://www.eol.ucar.edu/field_projects/orcas * info: NetCDF Information http://www.eol.ucar.edu/raf/Software/netCDF.html * info: ORCAS Project Manager Report https://www.eol.ucar.edu/sites/default/files/files_live/private/ORCASPMReport_0.pdf * info: ORCAS Data Policy https://www.eol.ucar.edu/content/orcas-data-policy Temporal coverage * Begin datetime: 2016-01-05 18:11:55 * End datetime: 2016-03-01 22:45:00 Spatial coverage * Maximum (North) Latitude: -30.00 * Minimum (South) Latitude: -80.00 * Minimum (West) Longitude: -105.00 * Maximum (East) Longitude: -30.00 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 * processor (ProjectManager): Cory Wolff https://data.eol.ucar.edu/contact/show/1797 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/490.002?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/490.002?format=isotc211