netcdf corsashevislangleyM1.c0.20190429.105044 { dimensions: time = UNLIMITED ; // (828 currently) wavelength = 1315 ; variables: int base_time ; base_time:string = "2019-04-29 03:00:00 0:00" ; base_time:long_name = "Base time in Epoch" ; base_time:units = "seconds since 1970-1-1 0:00:00 0:00" ; double time_offset(time) ; time_offset:long_name = "Time offset from base_time" ; time_offset:units = "seconds since 2019-04-29 03:00:00 0:00" ; double time(time) ; time:long_name = "Time offset from start of solar day" ; time:units = "seconds since 2019-04-29 03:00:00 0:00" ; float wavelength(wavelength) ; wavelength:long_name = "Wavelength" ; wavelength:units = "nm" ; float solar_zenith_angle(time) ; solar_zenith_angle:long_name = "Apparent solar zenith angle" ; solar_zenith_angle:units = "deg" ; solar_zenith_angle:comment = "Apparent SZA from solar ephemeris with correction for refraction" ; float cosine_solar_zenith_angle(time) ; cosine_solar_zenith_angle:long_name = "Cosine of apparent solar zenith angle" ; cosine_solar_zenith_angle:units = "unitless" ; cosine_solar_zenith_angle:comment = "Cosine of apparent SZA from solar ephemeris with correction for refraction" ; float cosine_correction(time) ; cosine_correction:long_name = "Cosine correction" ; cosine_correction:units = "unitless" ; float airmass(time) ; airmass:long_name = "Optical path length through Earth\'s atmosphere for light from a celestial source" ; airmass:units = "unitless" ; airmass:equation = "airmass = 1.0 / [ cos(sza) + 0.50572 * (96.07995 - sza)^-1.6364 ]" ; byte airmass_mask(time) ; airmass_mask:long_name = "Flags indicating the valid airmass values to use after cloud screening" ; airmass_mask:units = "unitless" ; airmass_mask:flag_values = 0b, 1b ; airmass_mask:flag_meanings = "cloud_detected no_cloud_detected" ; airmass_mask:flag_0_description = "Cloud detected by cloud screening algorithm." ; airmass_mask:flag_1_description = "No cloud detected by cloud screening algorithm." ; float earth_sun_distance(time) ; earth_sun_distance:long_name = "Earth sun distance" ; earth_sun_distance:units = "AU" ; float solar_spectrum(wavelength) ; solar_spectrum:long_name = "Extraterrestrial solar irradiance outside the Earth\'s atmosphere" ; solar_spectrum:units = "W/(m^2 nm)" ; float stray_light_baseline(wavelength) ; stray_light_baseline:long_name = "Baseline for stray light correction" ; stray_light_baseline:units = "unitless" ; float stray_light_scale_factor(time) ; stray_light_scale_factor:long_name = "Scale factor for stray light correction" ; stray_light_scale_factor:units = "counts" ; float direct_normal_irradiance(time, wavelength) ; direct_normal_irradiance:long_name = "Direct normal irradiance, background subtracted and cosine corrected" ; direct_normal_irradiance:units = "counts" ; byte direct_normal_irradiance_mask(time, wavelength) ; direct_normal_irradiance_mask:long_name = "Flags indicating the values used in the langley regression" ; direct_normal_irradiance_mask:units = "unitless" ; direct_normal_irradiance_mask:flag_values = 0b, 1b ; direct_normal_irradiance_mask:flag_meanings = "value_not_used_in_langley_regression value_used_in_langley_regression" ; direct_normal_irradiance_mask:flag_0_meaning = "Value not used in the langley regression." ; direct_normal_irradiance_mask:flag_1_meaning = "Value used in the langley regression." ; float am_Io(wavelength) ; am_Io:long_name = "Calculated Io from am langley regression" ; am_Io:units = "counts" ; am_Io:missing_value = -9999.f ; float am_Io_std(wavelength) ; am_Io_std:long_name = "Standard deviation of Io from am langley regression" ; am_Io_std:units = "counts" ; am_Io_std:missing_value = -9999.f ; float am_tau(wavelength) ; am_tau:long_name = "Calculated tau from am langley regression" ; am_tau:units = "unitless" ; am_tau:missing_value = -9999.f ; float am_tau_std(wavelength) ; am_tau_std:long_name = "Standard deviation of tau from am langley regression" ; am_tau_std:units = "unitless" ; am_tau_std:missing_value = -9999.f ; float am_chi2(wavelength) ; am_chi2:long_name = "Sum of squared residuals from am langley regression" ; am_chi2:units = "unitless" ; am_chi2:missing_value = -9999.f ; float pm_Io(wavelength) ; pm_Io:long_name = "Calculated Io from pm langley regression" ; pm_Io:units = "counts" ; pm_Io:missing_value = -9999.f ; float pm_Io_std(wavelength) ; pm_Io_std:long_name = "Standard deviation of Io from pm langley regression" ; pm_Io_std:units = "counts" ; pm_Io_std:missing_value = -9999.f ; float pm_tau(wavelength) ; pm_tau:long_name = "Calculated tau from pm langley regression" ; pm_tau:units = "unitless" ; pm_tau:missing_value = -9999.f ; float pm_tau_std(wavelength) ; pm_tau_std:long_name = "Standard deviation of tau from pm langley regression" ; pm_tau_std:units = "unitless" ; pm_tau_std:missing_value = -9999.f ; float pm_chi2(wavelength) ; pm_chi2:long_name = "Sum of squared residuals from pm langley regression" ; pm_chi2:units = "unitless" ; pm_chi2:missing_value = -9999.f ; float lat ; lat:long_name = "North latitude" ; lat:units = "degree_N" ; lat:valid_min = -90.f ; lat:valid_max = 90.f ; lat:standard_name = "latitude" ; float lon ; lon:long_name = "East longitude" ; lon:units = "degree_E" ; lon:valid_min = -180.f ; lon:valid_max = 180.f ; lon:standard_name = "longitude" ; float alt ; alt:long_name = "Altitude above mean sea level" ; alt:units = "m" ; alt:standard_name = "altitude" ; // global attributes: :command_line = "sashelangley -s cor -f M1 -b 20190429 -R" ; :process_version = "vap-sashelangley-1.7-0.el7" ; :dod_version = "sashevislangley-c0-1.2" ; :input_datastreams = "corsashenirhisunM1.a0 : 1.4 : 20190429.105026\n", "corsashevishisunM1.a0 : 1.4 : 20190429.105026" ; :site_id = "cor" ; :facility_id = "M1: Cordoba, Argentina" ; :data_level = "c0" ; :datastream = "corsashevislangleyM1.c0" ; :history = "created by user dsmgr on machine zinc at 2020-06-10 11:56:23, using vap-sashelangley-1.7-0.el7" ; }