De-Icing Comparison Experiment (D-ICE) campaign data: Radiometric and icing condition observations from the NOAA Barrow Atmospheric Baseline Observatory, August 2017-July 2018 (NCEI Accession 0209059)

The De-Icing Comparison Experiment (D-ICE) was carried out at the NOAA Atmospheric Baseline Observatory in Utqiagvik (formerly Barrow), Alaska, from August 2017 to July 2018. The purpose of D-ICE was to evaluate ventilation and heating technologies developed to mitigate radiometer icing. D-ICE consisted of 20 pyranometers and 5 pyrgeometers operating in various ventilator housings alongside the Baseline Surface Radiation Network (BSRN) station operated by NOAA. Broadband downwelling longwave and shortwave fluxes were measured and the radiometers were monitored using cameras. Icing conditions and occurrences of ice on radiometer domes were recorded based on manual review of the camera images. This data set contains one minute averages of the radiometric data, the icing determinations and ancillary data (such meteorology and housekeeping information form the sensors). Three versions of the fluxes are provided: the raw data (no quality control), data that is quality-controlled and verifiably ice-free, and data that is quality controlled but where occurrences of ice contaminated measurements are retained. The data set is suitable for analysis of the effects of ice on broadband radiometric data.

Tags: aerology, air temperature, air temperature at d-ice platform, alaska, altitude, altitude above mean sea level, base time in epoch, case temperature, code for icing conditions present at the station, code for icing state of instrument dome, determined qualitatively by visual examination of nearest-in-time camera image, dew point temperature, dewpoint temperature at d-ice platform, diffuse downwelling shortwave flux in air, distance from the earth to the sun (au), dome temperature, downwelling longwave flux in air, downwelling shortwave flux in air, east longitude, fan tach, flag for quality control, flag for shadowing of instrument by nearby infrastructure, ice-contaminated, latitude, logger #4, logger #5, logger #6, logger #7, logger panel temperature, longitude, north latitude, number of samples measured per minute, power supply voltage to logger, processed calibrated downwelling longwave hemispheric irradiance, processed calibrated global downwelling shortwave diffuse irradiance, processed calibrated global downwelling shortwave hemispheric irradiance, processed global downwelling shortwave hemispheric irradiance, pyrgeometers, raw calibrated downwelling longwave hemispheric irradiance, raw calibrated global downwelling shortwave diffuse irradiance, raw calibrated global downwelling shortwave hemispheric irradiance, relative humidity, relative humidity at d-ice platform, relative humidity w.r.t. ice at d-ice platform, solar azimuth angle, solar zenith angle, standard deviation case temperature, standard deviation dome temperature, standard deviation raw calibrated downwelling longwave hemispheric irradiance, standard deviation raw calibrated global downwelling shortwave hemispheric irradiance, time offset from base_time, time offset from midnight, utqiagvik, wind direction at d-ice platform, wind from direction, wind speed, wind speed at d-ice platform
Organization: National Oceanic and Atmospheric Administration, Department of Commerce