netcdf olirlproffexext1thorM1.c0.20191027.000000 { dimensions: time = UNLIMITED ; // (720 currently) height_high = 667 ; height_low = 288 ; variables: int base_time ; base_time:string = "2019-10-27 00:00:00 0:00" ; base_time:long_name = "Base time in Epoch" ; base_time:units = "seconds since 1970-1-1 0:00:00 0:00" ; base_time:ancillary_variables = "time_offset" ; double time_offset(time) ; time_offset:long_name = "Time offset from base_time" ; time_offset:units = "seconds since 2019-10-27 00:00:00 0:00" ; time_offset:ancillary_variables = "base_time" ; double time(time) ; time:long_name = "Time offset from midnight" ; time:units = "seconds since 2019-10-27 00:00:00 0:00" ; time:calendar = "gregorian" ; time:standard_name = "time" ; float height_high(height_high) ; height_high:long_name = "Height above ground level for the high (NFOV) channels" ; height_high:units = "km" ; height_high:standard_name = "height" ; float height_low(height_low) ; height_low:long_name = "Height above ground level for the low (WFOV) channels" ; height_low:units = "km" ; height_low:standard_name = "height" ; float particulate_backscatter_e_n2(time, height_high) ; particulate_backscatter_e_n2:long_name = "Particulate backscatter coefficient calculated from the scattering ratio derived from the high elastic and nitrogen channels" ; particulate_backscatter_e_n2:units = "1/(km*sr)" ; particulate_backscatter_e_n2:missing_value = -9999.f ; particulate_backscatter_e_n2:equation = "(scattering_ratio_e_n2 - 1) * (molecular backscatter coefficient at 355nm). See Eq 10 in paper_2." ; particulate_backscatter_e_n2:ancillary_variables = "particulate_backscatter_e_n2_uncertainty_random particulate_backscatter_e_n2_uncertainty_systematic" ; float particulate_backscatter_e_n2_uncertainty_random(time, height_high) ; particulate_backscatter_e_n2_uncertainty_random:long_name = "Random uncertainty in particulate_backscatter_e_n2" ; particulate_backscatter_e_n2_uncertainty_random:units = "1/(km*sr)" ; particulate_backscatter_e_n2_uncertainty_random:comment = "The random uncertainty is derived from the molecular backscatter coefficient at 355nm wavelength and the random uncertainty of the scattering ratio derived from the high elastic and nitrogen channels" ; particulate_backscatter_e_n2_uncertainty_random:missing_value = -9999.f ; float particulate_backscatter_e_n2_uncertainty_systematic(time, height_high) ; particulate_backscatter_e_n2_uncertainty_systematic:long_name = "Systematic uncertainty in particulate_backscatter_e_n2" ; particulate_backscatter_e_n2_uncertainty_systematic:units = "1/(km*sr)" ; particulate_backscatter_e_n2_uncertainty_systematic:comment = "The systematic uncertainty is derived from the molecular backscatter coefficient at 355nm wavelength and the systematic uncertainty of the scattering ratio derived from the high elastic and nitrogen channels" ; particulate_backscatter_e_n2_uncertainty_systematic:missing_value = -9999.f ; float particulate_backscatter_e_n2_low(time, height_low) ; particulate_backscatter_e_n2_low:long_name = "Particulate backscatter coefficient calculated from the scattering ratio derived from the low elastic and nitrogen channels" ; particulate_backscatter_e_n2_low:units = "1/(km*sr)" ; particulate_backscatter_e_n2_low:missing_value = -9999.f ; particulate_backscatter_e_n2_low:equation = "(scattering_ratio_e_n2_low - 1) * (molecular backscatter coefficient at 355nm). See Eq 10 in paper_2." ; particulate_backscatter_e_n2_low:ancillary_variables = "particulate_backscatter_e_n2_low_uncertainty_random particulate_backscatter_e_n2_low_uncertainty_systematic" ; float particulate_backscatter_e_n2_low_uncertainty_random(time, height_low) ; particulate_backscatter_e_n2_low_uncertainty_random:long_name = "Random uncertainty in particulate_backscatter_e_n2_low" ; particulate_backscatter_e_n2_low_uncertainty_random:units = "1/(km*sr)" ; particulate_backscatter_e_n2_low_uncertainty_random:comment = "The random uncertainty is derived from the molecular backscatter coefficient at 355nm wavelength and the random uncertainty of the scattering ratio derived from the low elastic and nitrogen channels" ; particulate_backscatter_e_n2_low_uncertainty_random:missing_value = -9999.f ; float particulate_backscatter_e_n2_low_uncertainty_systematic(time, height_low) ; particulate_backscatter_e_n2_low_uncertainty_systematic:long_name = "Systematic uncertainty in particulate_backscatter_e_n2_low" ; particulate_backscatter_e_n2_low_uncertainty_systematic:units = "1/(km*sr)" ; particulate_backscatter_e_n2_low_uncertainty_systematic:comment = "The systematic uncertainty is derived from the molecular backscatter coefficient at 355nm wavelength and the systematic uncertainty of the scattering ratio derived from the low elastic and nitrogen channels" ; particulate_backscatter_e_n2_low_uncertainty_systematic:missing_value = -9999.f ; float particulate_backscatter_e_beS(time, height_high) ; particulate_backscatter_e_beS:long_name = "Particulate backscatter coefficient from the high elastic channels calculated with the Fernald solution using the best-estimate lidar ratios." ; particulate_backscatter_e_beS:units = "1/(km*sr)" ; particulate_backscatter_e_beS:equation = "See equation 5 in paper_2" ; particulate_backscatter_e_beS:missing_value = -9999.f ; particulate_backscatter_e_beS:ancillary_variables = "particulate_backscatter_e_beS_uncertainty_random particulate_backscatter_e_beS_uncertainty_systematic" ; float particulate_backscatter_e_beS_uncertainty_random(time, height_high) ; particulate_backscatter_e_beS_uncertainty_random:long_name = "Random uncertainty in particulate_backscatter_e_beS" ; particulate_backscatter_e_beS_uncertainty_random:units = "1/(km*sr)" ; particulate_backscatter_e_beS_uncertainty_random:missing_value = -9999.f ; particulate_backscatter_e_beS_uncertainty_random:comment = "The random uncertainty for the particulate backscatter coefficient calculated with the Fernald solution is derived from the elastic high channel backscatter signal, the best-estimate lidar-ratio, the random uncertainties for the previous two, the Rayleigh molecular backscatter coefficient, and the Rayleigh molecular lidar ratio." ; float particulate_backscatter_e_beS_uncertainty_systematic(time, height_high) ; particulate_backscatter_e_beS_uncertainty_systematic:long_name = "Systematic uncertainty in particulate_backscatter_e_beS" ; particulate_backscatter_e_beS_uncertainty_systematic:units = "1/(km*sr)" ; particulate_backscatter_e_beS_uncertainty_systematic:missing_value = -9999.f ; particulate_backscatter_e_beS_uncertainty_systematic:comment = "The systematic uncertainty for the particulate backscatter coefficient calculated with the Fernald solution is derived from the elastic high channel backscatter signal, the best-estimate lidar-ratio, the systematic uncertainties for the previous two, the Rayleigh molecular backscatter coefficient, and the Rayleigh molecular lidar ratio." ; float particulate_backscatter_e(time, height_high) ; particulate_backscatter_e:long_name = "Particulate backscatter coefficient from the high elastic channels calculated with the Fernald solution using the high elastic channel lidar ratio" ; particulate_backscatter_e:units = "1/(km*sr)" ; particulate_backscatter_e:comment = "See equation 5 in paper_2" ; particulate_backscatter_e:missing_value = -9999.f ; particulate_backscatter_e:ancillary_variables = "particulate_backscatter_e_uncertainty_random particulate_backscatter_e_uncertainty_systematic" ; float particulate_backscatter_e_uncertainty_random(time, height_high) ; particulate_backscatter_e_uncertainty_random:long_name = "Random uncertainty in particulate_backscatter_e" ; particulate_backscatter_e_uncertainty_random:units = "1/(km*sr)" ; particulate_backscatter_e_uncertainty_random:comment = "The random uncertainty for the particulate backscatter coefficient calculated with the Fernald solution using the high channel elastic lidar ratio is derived from the elastic high channel backscatter signal, the high elastic channel lidar ratio, the random uncertainties for the previous two, the Rayleigh elastic molecular backscatter coefficient, and the Rayleigh elastic molecular lidar ratio." ; particulate_backscatter_e_uncertainty_random:missing_value = -9999.f ; float particulate_backscatter_e_uncertainty_systematic(time, height_high) ; particulate_backscatter_e_uncertainty_systematic:long_name = "Systematic uncertainty in particulate_backscatter_e" ; particulate_backscatter_e_uncertainty_systematic:units = "1/(km*sr)" ; particulate_backscatter_e_uncertainty_systematic:comment = "The systematic uncertainty for the particulate backscatter coefficient calculated with the Fernald solution using the high channel elastic lidar ratio is derived from the elastic high channel backscatter signal, the high elastic channel lidar ratio, the systematic uncertainties for the previous two, the Rayleigh elastic molecular backscatter coefficient, and the Rayleigh elastic molecular lidar ratio." ; particulate_backscatter_e_uncertainty_systematic:missing_value = -9999.f ; float lidar_ratio_e_n2(time, height_high) ; lidar_ratio_e_n2:long_name = "Lidar ratio from the high nitrogen channel extinction and particulate_backscatter_e_n2" ; lidar_ratio_e_n2:units = "sr" ; lidar_ratio_e_n2:comment = "Determined at various amounts of smoothing as noted in extinction_flag" ; lidar_ratio_e_n2:missing_value = -9999.f ; lidar_ratio_e_n2:equation = "(high nitrogen channel particulate extinction coefficient) / (particulate_backscatter_e_n2) See eq 6 in paper_2" ; lidar_ratio_e_n2:ancillary_variables = "lidar_ratio_e_n2_uncertainty_random" ; float lidar_ratio_e_n2_uncertainty_random(time, height_high) ; lidar_ratio_e_n2_uncertainty_random:long_name = "Random uncertainty in lidar_ratio_e_n2" ; lidar_ratio_e_n2_uncertainty_random:units = "sr" ; lidar_ratio_e_n2_uncertainty_random:comment = "The random uncertainty is derived from the high nitrogen channel extinction coefficient, the particulate backscatter coefficient calculated from the scattering ratio derived from the high elastic and nitrogen channels, and their respective random uncertainties" ; lidar_ratio_e_n2_uncertainty_random:missing_value = -9999.f ; float lidar_ratio_e_n2_low(time, height_low) ; lidar_ratio_e_n2_low:long_name = "Lidar ratio from the low nitrogen channel extinction and particulate_backscatter_e_n2_ low" ; lidar_ratio_e_n2_low:units = "sr" ; lidar_ratio_e_n2_low:comment = "Determined at various amounts of smoothing as noted in extinction_flag" ; lidar_ratio_e_n2_low:missing_value = -9999.f ; lidar_ratio_e_n2_low:equation = "(low nitrogen channel particulate extinction coefficient) / (particulate_backscatter_e_n2_low) See eq 6 in paper_2" ; lidar_ratio_e_n2_low:ancillary_variables = "lidar_ratio_e_n2_low_uncertainty_random" ; float lidar_ratio_e_n2_low_uncertainty_random(time, height_low) ; lidar_ratio_e_n2_low_uncertainty_random:long_name = "Random uncertainty in lidar_ratio_e_n2_low" ; lidar_ratio_e_n2_low_uncertainty_random:units = "sr" ; lidar_ratio_e_n2_low_uncertainty_random:comment = "The random uncertainty is derived from the low nitrogen channel extinction coefficient, the particulate backscatter coefficient calculated from the scattering ratio derived from the low elastic and nitrogen channels, and their respective random uncertainties" ; lidar_ratio_e_n2_low_uncertainty_random:missing_value = -9999.f ; float lidar_ratio_e(time, height_high) ; lidar_ratio_e:long_name = "Lidar ratio from the high elastic channels" ; lidar_ratio_e:units = "sr" ; lidar_ratio_e:comment = "Combination of assumed values based on feature type and values determined from the transmission-loss method" ; lidar_ratio_e:missing_value = -9999.f ; lidar_ratio_e:ancillary_variables = "lidar_ratio_e_uncertainty_random lidar_ratio_e_uncertainty_systematic source_lidar_ratio_e" ; float lidar_ratio_e_uncertainty_random(time, height_high) ; lidar_ratio_e_uncertainty_random:long_name = "Random uncertainty in lidar_ratio_e" ; lidar_ratio_e_uncertainty_random:units = "sr" ; lidar_ratio_e_uncertainty_random:comment = "Random: signal noise. Maximum systematic: assumed lidar ratio, transmission optical depth" ; lidar_ratio_e_uncertainty_random:missing_value = -9999.f ; float lidar_ratio_e_uncertainty_systematic(time, height_high) ; lidar_ratio_e_uncertainty_systematic:long_name = "Systematic uncertainty in lidar_ratio_e" ; lidar_ratio_e_uncertainty_systematic:units = "sr" ; lidar_ratio_e_uncertainty_systematic:comment = "Random: signal noise. Maximum systematic: assumed lidar ratio, transmission optical depth" ; lidar_ratio_e_uncertainty_systematic:missing_value = -9999.f ; int source_lidar_ratio_e(time, height_high) ; source_lidar_ratio_e:long_name = "Source for field: Lidar ratio from the high elastic channels" ; source_lidar_ratio_e:units = "1" ; source_lidar_ratio_e:missing_value = -9999 ; source_lidar_ratio_e:flag_values = 1, 2 ; source_lidar_ratio_e:flag_meanings = "lidar_ratio_for_elastic_channel_lidar_ratio transmission-loss_method_for_calculating_elastic_channel_lidar_ratio" ; source_lidar_ratio_e:flag_1_description = "Used the assumed lidar ratio for the elastic channel lidar ratio" ; source_lidar_ratio_e:flag_2_description = "Used the transmission-loss method for calculating the elastic channel lidar ratio" ; float particulate_backscatter_be_noMS(time, height_high) ; particulate_backscatter_be_noMS:long_name = "Best-estimate of the particulate backscatter coefficient without accounting for multiple scattering effects" ; particulate_backscatter_be_noMS:units = "1/(km*sr)" ; particulate_backscatter_be_noMS:comment = "Combination of: scattering_ratio_e_n2 + scattering_ratio_e_n2_low + Bp_el_beS as noted in extinction_flag" ; particulate_backscatter_be_noMS:missing_value = -9999.f ; float lidar_ratio_be_noMS(time, height_high) ; lidar_ratio_be_noMS:long_name = "Best-estimate of the lidar ratio without accounting for multiple scattering effects" ; lidar_ratio_be_noMS:units = "sr" ; lidar_ratio_be_noMS:comment = "Combination of: lidar_ratio_e_n2_low + lidar_ratio_e_n2 + interpolated + transmission-loss + profile/object/daily averaged + assumed lidar ratios as noted in extinction_flag" ; lidar_ratio_be_noMS:missing_value = -9999.f ; float particulate_backscatter_e_n2_noMS(time, height_high) ; particulate_backscatter_e_n2_noMS:long_name = "Particulate backscatter coefficient calculated from scattering_ratio_e_n2 without accounting for multiple scattering effects" ; particulate_backscatter_e_n2_noMS:units = "1/(km*sr)" ; particulate_backscatter_e_n2_noMS:missing_value = -9999.f ; float particulate_backscatter_e_n2_low_noMS(time, height_low) ; particulate_backscatter_e_n2_low_noMS:long_name = "Particulate backscatter coefficient calculated from scattering_ratio_e_n2_low without accounting for multiple scattering effects" ; particulate_backscatter_e_n2_low_noMS:units = "1/(km*sr)" ; particulate_backscatter_e_n2_low_noMS:missing_value = -9999.f ; float particulate_backscatter_e_beS_noMS(time, height_high) ; particulate_backscatter_e_beS_noMS:long_name = "Particulate backscatter coefficient from the high elastic channels using the best-estimate lidar ratios without accounting for multiple scattering effects" ; particulate_backscatter_e_beS_noMS:units = "1/(km*sr)" ; particulate_backscatter_e_beS_noMS:comment = "Fernald solution using lidar_ratio_be" ; particulate_backscatter_e_beS_noMS:missing_value = -9999.f ; float particulate_backscatter_e_noMS(time, height_high) ; particulate_backscatter_e_noMS:long_name = "Particulate backscatter coefficient from the high elastic channels without accounting for multiple scattering effects" ; particulate_backscatter_e_noMS:units = "1/(km*sr)" ; particulate_backscatter_e_noMS:comment = "Fernald solution using lidar_ratio_e" ; particulate_backscatter_e_noMS:missing_value = -9999.f ; float lidar_ratio_e_n2_noMS(time, height_high) ; lidar_ratio_e_n2_noMS:long_name = "Lidar ratio from the high nitrogen channel extinction and particulate_backscatter_e_n2 without accounting for multiple scattering effects" ; lidar_ratio_e_n2_noMS:units = "sr" ; lidar_ratio_e_n2_noMS:comment = "Determined at various amounts of smoothing as noted in extinction_flag" ; lidar_ratio_e_n2_noMS:missing_value = -9999.f ; float lidar_ratio_e_n2_low_noMS(time, height_low) ; lidar_ratio_e_n2_low_noMS:long_name = "Lidar ratio from the low nitrogen channel extinction and particulate_backscatter_e_n2_low without accounting for multiple scattering effects" ; lidar_ratio_e_n2_low_noMS:units = "sr" ; lidar_ratio_e_n2_low_noMS:comment = "Determined at various amounts of smoothing as noted in extinction_flag" ; lidar_ratio_e_n2_low_noMS:missing_value = -9999.f ; float lidar_ratio_e_noMS(time, height_high) ; lidar_ratio_e_noMS:long_name = "Lidar ratio from the high elastic channels without accounting for multiple scattering effects" ; lidar_ratio_e_noMS:units = "sr" ; lidar_ratio_e_noMS:comment = "Combination of assumed values based on feature type and values determined from the transmission-loss method" ; lidar_ratio_e_noMS: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 = "rlprof_fex.m -R -D 1 --asynchronous -s oli -f M1 -b 20191027 -e 20191028" ; :Conventions = "ARM-1.2" ; :process_version = "1.6-1.el7" ; :dod_version = "rlproffexext1thor-c0-1.0" ; :input_datastreams = "olisondewnpnM1.b1 : 10.13 : 20191023.172900-20191028.233400\n", "olirlprofmerge2newsM1.c0 : 1.1 : 20191023.000006-20191027.000005" ; :site_id = "oli" ; :platform_id = "rlproffexext1thor" ; :facility_id = "M1" ; :data_level = "c0" ; :location_description = "North Slope of Alaska (NSA), Oliktok Point, Alaska" ; :datastream = "olirlproffexext1thorM1.c0" ; :doi = "10.5439/1373938" ; :smoothing_weight = "2D Gaussian, standard deviation = (window size)/3" ; :smoothing_levels = "smoothing level 1 window: 0.03 km x 2 min; smoothing level 2 window: 0.3 km x 10 min; smoothing level 3 window: 0.6 km x 30 min; smoothing level 4 window: 1.2 km x 60 min; smoothing level 5 window: 2.4 km x 120 min; smoothing level 6 window: 4.8 km x 240 min; " ; :number_iterations = "8" ; :paper_1 = "Thorsen, T.J., Q. Fu, R.K. Newsom, D.D. Turner, and J.M. Comstock, 2015: Automated Retrieval of Cloud and Aerosol Properties from the ARM Raman Lidar. Part I: Feature Detection. J. Atmos. Oceanic Technol., 32, 1977–1998, https://doi.org/10.1175/JTECH-D-14-00150.1" ; :paper_2 = "Thorsen, T.J. and Q. Fu, 2015: Automated Retrieval of Cloud and Aerosol Properties from the ARM Raman Lidar. Part II: Extinction. J. Atmos. Oceanic Technol., 32, 1999–2023, https://doi.org/10.1175/JTECH-D-14-00178.1" ; :history = "created by user cromwell on machine agate at 2022-01-21 22:35:24, using 1.6-1.el7" ; }