netcdf classic (CDF-1) {
dimensions:
	time = 126070 ;
// global attributes:
		:title = "Broadband radiation measured by BACARDI during CIRRUS-HL" ;
		:mission = "CIRRUS-HL" ;
		:platform = "HALO" ;
		:instrument = "BACARDI" ;
		:research_flight_day = "2021/06/24" ;
		:version = "Version 1" ;
		:date_last_revised = "2021-12-10" ;
		:comment = "BACARDI raw data was processed by DLR, contact Andreas Giez" ;
		:contact = "Anna Luebke, Andre Ehrlich, University Leipzig; email: anna.luebke@uni-leipzig.de" ;
variables:
	double time(time) ;
		time:long_name = "time" ;
		time:units = "seconds since midnight (UTC)" ;
	float alt(time) ;
		alt:long_name = "altitude (WGS84 Datum/Elliptical, BAHAMAS)" ;
		alt:standard_name = "altitude" ;
		alt:units = "m" ;
		alt:_FillValue = -999.0 ;
	float lat(time) ;
		lat:long_name = "latitude (WGS84 Datum/Latitude, BAHAMAS)" ;
		lat:standard_name = "latitude" ;
		lat:units = "degree_north" ;
	float lon(time) ;
		lon:long_name = "longitude (WGS84 Datum/Longitude, BAHAMAS)" ;
		lon:standard_name = "longitude" ;
		lon:units = "degree_east" ;
	float sza(time) ;
		sza:long_name = "solar zenith angle" ;
		sza:standard_name = "solar_zenith_angle" ;
		sza:units = "degree" ;
	float saa(time) ;
		saa:long_name = "solar azimuth angle" ;
		saa:standard_name = "solar_azimuth_angle" ;
		saa:units = "degree" ;
	float F_down_solar(time) ;
		F_down_solar:long_name = "Downward solar irradiance corrected for cloud-free conditions (0.2-3.6 um) (BACARDI)" ;
		F_down_solar:standard_name = "downwelling_shortwave_flux_in_air" ;
		F_down_solar:units = "W m-2" ;
		F_down_solar:comment1 = "Corrected for temperature offset, time response, aircraft attitude" ;
		F_down_solar:comment2 = "Temperature offset correction based on DLR parametrization" ;
		F_down_solar:comment3 = "Time response correction: response time 1.2s, cut-off_frequency 0.6Hz, running mean length = 0.5s " ;
		F_down_solar:comment4 = "Attitude correction: roll offset = -0.150000, pitch offset = 2.85000" ;
		F_down_solar:_FillValue = -999.0 ;
	float F_down_solar_diff(time) ;
		F_down_solar_diff:long_name = "Downward solar irradiance corrected for diffuse/cloudy conditions (0.2-3.6 um) (BACARDI)" ;
		F_down_solar_diff:standard_name = "diffuse_downwelling_shortwave_flux_in_air" ;
		F_down_solar_diff:units = "W m-2" ;
		F_down_solar_diff:comment1 = "Corrected for temperature offset, time response, aircraft attitude" ;
		F_down_solar_diff:comment2 = "Temperature offset correction based on DLR parametrization" ;
		F_down_solar_diff:comment3 = "Time response correction: response time 1.2s, cut-off_frequency 0.6Hz, running mean length = 0.5s " ;
		F_down_solar_diff:comment4 = "No attitude correction applied, assuming a 100% diffuse radiation field due to clouds " ;
		F_down_solar_diff:_FillValue = -999.0 ;
	float F_up_solar(time) ;
		F_up_solar:long_name = "Upward solar irradiance (0.2-3.6 um) (BACARDI)" ;
		F_up_solar:standard_name = "upwelling_shortwave_flux_in_air" ;
		F_up_solar:units = "W m-2" ;
		F_up_solar:comment1 = "Corrected for temperature offset, time response" ;
		F_up_solar:comment2 = "Temperature offset correction based on DLR parametrization" ;
		F_up_solar:comment3 = "Time response correction: response time 1.2s, cut-off_frequency 0.6Hz, running mean length = 0.5s " ;
		F_up_solar:_FillValue = -999.0 ;
	float F_down_terrestrial(time) ;
		F_down_terrestrial:long_name = "Downward terrestrial irradiance (4.5-42 um) (BACARDI)" ;
		F_down_terrestrial:standard_name = "downwelling_longwave_flux_in_air" ;
		F_down_terrestrial:units = "W m-2" ;
		F_down_terrestrial:comment1 = "Corrected for temperature offset, time response" ;
		F_down_terrestrial:comment2 = "Temperature offset correction based on DLR parametrization" ;
		F_down_terrestrial:comment3 = "Time response correction: response time 3.3s, cut-off_frequency 0.5Hz, running mean length = 2.0s " ;
		F_down_terrestrial:_FillValue = -999.0 ;
	float F_up_terrestrial(time) ;
		F_up_terrestrial:long_name = "Upward terrestrial irradiance (4.5-42 um) (BACARDI)" ;
		F_up_terrestrial:standard_name = "upwelling_longwave_flux_in_air" ;
		F_up_terrestrial:units = "W m-2" ;
		F_up_terrestrial:comment1 = "Corrected for temperature offset, time response" ;
		F_up_terrestrial:comment2 = "Temperature offset correction based on DLR parametrization" ;
		F_up_terrestrial:comment3 = "Time response correction: response time 3.3s, cut-off_frequency 0.5Hz, running mean length = 2.0s " ;
		F_up_terrestrial:_FillValue = -999.0 ;
	float F_down_solar_sim(time) ;
		F_down_solar_sim:long_name = "Downward solar irradiance simulated for cloud-free conditions (with libRadtran)" ;
		F_down_solar_sim:units = "W m-2" ;
		F_down_solar_sim:comment = "Simulated for aircraft position, altitude using radio soundings" ;
		F_down_solar_sim:_FillValue = -999.0 ;
	byte cloud_mask(time) ;
		cloud_mask:long_name = "Cloud flag for clouds in front of the Sun affecting the solar downward irradiance [0 = cloud free, 1 = cloudy]" ;
		cloud_mask:comment1 = "The cloud flag is a rough conservative estimate of the presence of clouds based on the variability of the downward solar irradiance within a 20 second running window." ;
// time: first 43139.0, last 55745.9, count 126070
}