NSF/NCAR GV HIAPER Low Rate (LRT - 1 sps) Navigation, State Parameter, and Microphysics Flight-Level Data - ICARTT Format https://data.eol.ucar.edu/dataset/383.025 Summary This dataset includes airborne measurements obtained from the Gulfstream-V High-performance Instrumented Airborne Platform for Environmental Research (NSF/NCAR GV HIAPER) aircraft, Tail Number N677F, during the CONvective TRansport of Active Species in the Tropics (CONTRAST) project. This dataset contains low rate navigation, state parameter, and microphysics flight-level data in ICARTT format. Identifiers * Local archive identifier: 383.025 * doi:10.5065/D61Z42SJ https://doi.org/10.5065/D61Z42SJ Versions 2.0: This dataset begins with Version 2.0 because it is derived from the second version (labelled Version 1.1) of the LRT .nc dataset (383.012). We did not create ICARTT files from version 1.0. The version numbering is inconsistent because NASA require whole-number versions, but EOL does not. 3.0: This update contains corrected 2DC data (CONC2DCA_LWOO, DBAR2DCA_LWOO, and PLWC2DCR_LWOO). No other data has been changed. It was discovered that all particles in a single buffer got 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 being binned to the second of the end time-stamp for the buffer. This has now been corrected so data is spread across the time-period of the buffer correctly. This version also uses exact circle fitting for measuring particle size and limits accepted particles to center-in images. 4.0: Some processing algorithms have changed since the last release. This version contains: recovery factor study modifications for temperature (elements 1 & 2 get a separate recovery factor now) humidity / MACH / TAS algorithm updates modifications to the wind uncertainty algorithm and for 2d processing, the processing didn't change, but extract2d got a new algorithm for determining which records should be rejected and not transferred into the 2d file. Citation UCAR/NCAR - Earth Observing Laboratory. 2021. CONTRAST: NSF/NCAR GV HIAPER Low Rate (LRT - 1 sps) Navigation, State Parameter, and Microphysics Flight-Level Data - ICARTT Format. Version 4.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D61Z42SJ 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 * CONTRAST: Convective Transport of Active Species in the Tropics https://data.eol.ucar.edu/project/CONTRAST 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 * GPS Receivers * Pyrgeometers * UHSAS - Ultra-High Sensitivity Aerosol Spectrometer * VCSEL - Vertical-Cavity Surface-Emitting Laser GCMD Science Keywords * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > VAPOR PRESSURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR PROFILES * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS > TURBULENCE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > ABSOLUTE HUMIDITY * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > ATMOSPHERIC PRESSURE MEASUREMENTS * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > STATIC PRESSURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > DEICED TEMPERATURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE > BOUNDARY LAYER TEMPERATURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > U/V WIND COMPONENTS * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS > VERTICAL WIND VELOCITY/SPEED * 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 > UPPER AIR TEMPERATURE > VIRTUAL TEMPERATURE * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > BOUNDARY LAYER WINDS * EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND DYNAMICS > HORIZONTAL WIND VELOCITY/SPEED Related links * companion: 383.012: Low Rate (LRT - 1 sps) Navigation, State Parameter, and Microphysics Flight-Level Data https://data.eol.ucar.edu/dataset/383.012 * download: CONTRAST GV HIAPER Project Manager's Report https://www.eol.ucar.edu/sites/default/files/2023-05/CONTRAST_PM_Report_May_2023%20.pdf * info: CONTRAST Data Policy https://www.eol.ucar.edu/content/contrast-data-policy * homepage: CONTRAST https://www.eol.ucar.edu/field_projects/contrast * info: CONTRAST Missions http://catalog.eol.ucar.edu/contrast/tools/missions Temporal coverage * Begin datetime: 2014-01-11 00:00:00 * End datetime: 2014-02-28 23:59:59 Spatial coverage * Maximum (North) Latitude: 40.00 * Minimum (South) Latitude: -15.00 * Minimum (West) Longitude: 115.00 * Maximum (East) Longitude: 175.00 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 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/383.025?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/383.025?format=isotc211