netcdf sgpaerosolbe1turnC1.c1.20070101.000000 {
dimensions:
	time = UNLIMITED ; // (4464 currently)
	height = 177 ;
variables:
	int base_time ;
		base_time:string = "1-Jan-2007,0:00:00 GMT" ;
		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 2007-01-01 00:00:00 0:00" ;
	double time(time) ;
		time:long_name = "Time offset from midnight" ;
		time:units = "seconds since 2007-01-01 00:00:00 0:00" ;
	float be_aod_500(time) ;
		be_aod_500:long_name = "Best estimate aerosol optical depth at 500 nm" ;
		be_aod_500:units = "unitless" ;
		be_aod_500:comment = "See technical report for details on computation" ;
	float be_aod_355(time) ;
		be_aod_355:long_name = "Best estimate aerosol optical depth at 355nm" ;
		be_aod_355:units = "unitless" ;
		be_aod_355:comment = "See technical report for details on computation" ;
	float be_angst_exp(time) ;
		be_angst_exp:long_name = "Best estimate Angstrom exponent" ;
		be_angst_exp:units = "unitless" ;
		be_angst_exp:comment = "See technical report for details on computation" ;
		be_angst_exp:cloudy_threshold = "0.5" ;
		be_angst_exp:equation = "angstrom_exponent is ln( aod355 / aod870 ) / ln( 870 / 355 )" ;
	float height(height) ;
		height:long_name = "height above ground level from aerosolbe1turn_parameter file" ;
		height:units = "km" ;
	float extinction_profile(time, height) ;
		extinction_profile:long_name = "Aerosol extinction profile at 500 nm" ;
		extinction_profile:units = "1/km" ;
		extinction_profile:comment = "See technical report for details on computation" ;
	float single_scattering_albedo(time, height) ;
		single_scattering_albedo:long_name = "Aerosol single scattering albedo profile at 500 nm" ;
		single_scattering_albedo:units = "unitless" ;
		single_scattering_albedo:comment = "Dry aerosol scattering properties for 1 um size cut is assumed to be height independent" ;
		single_scattering_albedo:comment1 = "The vertical variations are due to changes in relative humidity" ;
	float asymmetry_parameter(time, height) ;
		asymmetry_parameter:long_name = "Aerosol asymmetry parameter profile at 500 nm" ;
		asymmetry_parameter:units = "unitless" ;
		asymmetry_parameter:comment = "Dry aerosol scattering properties for 1 um size cut is assumed to be height independent" ;
		asymmetry_parameter:comment1 = "The vertical variations are due to changes in relative humidity" ;
	float scat_coeff_green(time) ;
		scat_coeff_green:long_name = "Aerosol total scatter coefficient at 500 nm for 1 um size cut" ;
		scat_coeff_green:units = "1/km" ;
	float effective_height(time) ;
		effective_height:long_name = "Effective thickness of the aerosol layer" ;
		effective_height:units = "km" ;
		effective_height:comment = "Derived from from humidity corrected AOS total scattering coefficient and MFRSR AOD at 500 nm" ;
		effective_height:comment1 = "This value has been interpolated for missing values and screened for extreme values" ;
	float backscatter_green(time) ;
		backscatter_green:long_name = "Aerosol backscatter coefficient at 500 nm for 1 um size cut" ;
		backscatter_green:units = "1/km" ;
	float absorp_coef_mean(time) ;
		absorp_coef_mean:long_name = "Aerosol absorption coefficient at 500 nm for 1 um size cut" ;
		absorp_coef_mean:units = "1/km" ;
	float rh(time, height) ;
		rh:long_name = "Relative humidity profile from sonde" ;
		rh:units = "%" ;
		rh:comment = "Interpolated from radiosonde data at various heights" ;
		rh:comment1 = "Relative humidity at surface is dervied from 1 minute SMOS data" ;
		rh:comment2 = "Relative humidity at NSA is retrieved from mwrp data" ;
	float mean_aod_mfrsr_filter1(time) ;
		mean_aod_mfrsr_filter1:long_name = "Mean aerosol optical depth at 415 nm" ;
		mean_aod_mfrsr_filter1:units = "unitless" ;
	float sdev_aod_mfrsr_filter1(time) ;
		sdev_aod_mfrsr_filter1:long_name = "Standard deviation of aerosol optical depth at 415 nm" ;
		sdev_aod_mfrsr_filter1:units = "unitless" ;
	float mean_aod_mfrsr_filter2(time) ;
		mean_aod_mfrsr_filter2:long_name = "Mean aerosol optical depth at 500 nm" ;
		mean_aod_mfrsr_filter2:units = "unitless" ;
	float sdev_aod_mfrsr_filter2(time) ;
		sdev_aod_mfrsr_filter2:long_name = "Standard deviation of aerosol optical depth at 500 nm" ;
		sdev_aod_mfrsr_filter2:units = "unitless" ;
	float mean_aod_mfrsr_filter3(time) ;
		mean_aod_mfrsr_filter3:long_name = "Mean aerosol optical depth at 615 nm" ;
		mean_aod_mfrsr_filter3:units = "unitless" ;
	float sdev_aod_mfrsr_filter3(time) ;
		sdev_aod_mfrsr_filter3:long_name = "Standard deviation of aerosol optical depth at 615 nm" ;
		sdev_aod_mfrsr_filter3:units = "unitless" ;
	float mean_aod_mfrsr_filter4(time) ;
		mean_aod_mfrsr_filter4:long_name = "Mean aerosol optical depth at 673 nm" ;
		mean_aod_mfrsr_filter4:units = "unitless" ;
	float sdev_aod_mfrsr_filter4(time) ;
		sdev_aod_mfrsr_filter4:long_name = "Mean aerosol optical depth at 673 nm" ;
		sdev_aod_mfrsr_filter4:units = "unitless" ;
	float mean_aod_mfrsr_filter5(time) ;
		mean_aod_mfrsr_filter5:long_name = "Mean aerosol optical depth at 870 nm" ;
		mean_aod_mfrsr_filter5:units = "unitless" ;
	float sdev_aod_mfrsr_filter5(time) ;
		sdev_aod_mfrsr_filter5:long_name = "Mean aerosol optical depth at 870 nm" ;
		sdev_aod_mfrsr_filter5:units = "unitless" ;
	float mean_angst_exponent_mfrsr(time) ;
		mean_angst_exponent_mfrsr:long_name = "Mean angstrom exponent from MFRSR observations" ;
		mean_angst_exponent_mfrsr:units = "unitless" ;
		mean_angst_exponent_mfrsr:equation = "angstrom_exponent is ln( aod415 / aod870 ) / ln( 870 / 415 )" ;
	float interpolated_angst_exponent_mfrsr(time) ;
		interpolated_angst_exponent_mfrsr:long_name = "Interpolated angstrom exponent from MFRSR observations" ;
		interpolated_angst_exponent_mfrsr:units = "unitless" ;
		interpolated_angst_exponent_mfrsr:comment = "Used mean_angst_exponent_mfrsr interpolating across gaps (missing data) of less than 3 days" ;
	float mean_aod_nimfr_filter1(time) ;
		mean_aod_nimfr_filter1:long_name = "Mean aerosol optical depth at 415 nm from NIMFR" ;
		mean_aod_nimfr_filter1:units = "unitless" ;
	float sdev_aod_nimfr_filter1(time) ;
		sdev_aod_nimfr_filter1:long_name = "Standard deviation of aerosol optical depth at 415 nm from NIMFR" ;
		sdev_aod_nimfr_filter1:units = "unitless" ;
	float mean_aod_nimfr_filter2(time) ;
		mean_aod_nimfr_filter2:long_name = "Mean aerosol optical depth at 500 nm from NIMFR" ;
		mean_aod_nimfr_filter2:units = "unitless" ;
	float sdev_aod_nimfr_filter2(time) ;
		sdev_aod_nimfr_filter2:long_name = "Standard deviation of aerosol optical depth at 500 nm from NIMFR" ;
		sdev_aod_nimfr_filter2:units = "unitless" ;
	float mean_aod_nimfr_filter3(time) ;
		mean_aod_nimfr_filter3:long_name = "Mean aerosol optical depth at 615 nm from NIMFR" ;
		mean_aod_nimfr_filter3:units = "unitless" ;
	float sdev_aod_nimfr_filter3(time) ;
		sdev_aod_nimfr_filter3:long_name = "Standard deviation of aerosol optical depth at 615 nm from NIMFR" ;
		sdev_aod_nimfr_filter3:units = "unitless" ;
	float mean_aod_nimfr_filter4(time) ;
		mean_aod_nimfr_filter4:long_name = "Mean aerosol optical depth at 673 nm from NIMFR" ;
		mean_aod_nimfr_filter4:units = "unitless" ;
	float sdev_aod_nimfr_filter4(time) ;
		sdev_aod_nimfr_filter4:long_name = "Mean aerosol optical depth at 673 nm from NIMFR" ;
		sdev_aod_nimfr_filter4:units = "unitless" ;
	float mean_aod_nimfr_filter5(time) ;
		mean_aod_nimfr_filter5:long_name = "Mean aerosol optical depth at 870 nm from NIMFR" ;
		mean_aod_nimfr_filter5:units = "unitless" ;
	float sdev_aod_nimfr_filter5(time) ;
		sdev_aod_nimfr_filter5:long_name = "Mean aerosol optical depth at 870 nm from NIMFR" ;
		sdev_aod_nimfr_filter5:units = "unitless" ;
	float mean_angst_exponent_nimfr(time) ;
		mean_angst_exponent_nimfr:long_name = "Mean angstrom exponent from NIMFR observations" ;
		mean_angst_exponent_nimfr:units = "unitless" ;
		mean_angst_exponent_nimfr:equation = "angstrom_exponent is ln( aod415 / aod870 ) / ln( 870 / 415 )" ;
	float interpolated_angst_exponent_nimfr(time) ;
		interpolated_angst_exponent_nimfr:long_name = "Interpolated angstrom exponent from NIMFR observations" ;
		interpolated_angst_exponent_nimfr:units = "unitless" ;
		interpolated_angst_exponent_nimfr:comment = "Used mean_angst_exponent_nimfr interpolating across gaps (missing data) of less than 3 days" ;
	float mean_aod_rl(time) ;
		mean_aod_rl:long_name = "Mean aerosol optical depth from Raman lidar at 355 nm" ;
		mean_aod_rl:units = "unitless" ;
		mean_aod_rl:comment = "All data have been screened based on aod_max_ht of greater than 6.5 km" ;
	float height_rl(height) ;
		height_rl:long_name = "height above ground level from Raman lidar" ;
		height_rl:units = "km" ;
	float rh_rl(time, height) ;
		rh_rl:long_name = "Relative humidity profile from Raman lidar" ;
		rh_rl:units = "%" ;
	float angst_exponent_rl(time) ;
		angst_exponent_rl:long_name = "Angstrom exponent derived from Raman lidar and MFRSR at 870 nm observations" ;
		angst_exponent_rl:units = "unitless" ;
		angst_exponent_rl:equation = "angstrom_exponent is ln( rl_aod355 / mfrsr_aod870 ) / ln( 870 / 355 )" ;
	float angst_exponent_mfrsr_filter2(time) ;
		angst_exponent_mfrsr_filter2:long_name = "Angstrom exponent derived from MFRSR at 450 nm observations" ;
		angst_exponent_mfrsr_filter2:units = "unitless" ;
		angst_exponent_mfrsr_filter2:comment = "The angstrom exponent is screened for clouds and interpolated for missing gaps of less than 3 days." ;
	float angst_exponent_rl_filled(time) ;
		angst_exponent_rl_filled:long_name = "Filled Angstrom exponent derived from Raman lidar and MFRSR at 870 nm observations" ;
		angst_exponent_rl_filled:units = "unitless" ;
		angst_exponent_rl_filled:comment = "Used angst_exponent_rl, filtered and interpolated across gaps (missing data) of less than 3 days" ;
	float angstrom_exponent_AOS(time, height) ;
		angstrom_exponent_AOS:long_name = "Angstrom exponent computed from humidified total scattering coefficients at 450 nm and 700 nm for 1 um size cut" ;
		angstrom_exponent_AOS:units = "unitless" ;
		angstrom_exponent_AOS:equation = "angstrom_exponent is ln( tscat_450 / tscat_700 ) / ln( 700 / 450 )" ;
	float scat_coeff_blue(time) ;
		scat_coeff_blue:long_name = "Dry total scatter coefficient at 450 nm for 1 um size cut" ;
		scat_coeff_blue:units = "1/km" ;
	float backscatter_blue(time) ;
		backscatter_blue:long_name = "Dry backscatter coefficient at 450 nm for 1 um size cut" ;
		backscatter_blue:units = "1/km" ;
	float scat_coeff_red(time) ;
		scat_coeff_red:long_name = "Dry total scatter coefficient at 700 nm for 1 um size cut" ;
		scat_coeff_red:units = "1/km" ;
	float backscatter_red(time) ;
		backscatter_red:long_name = "Dry backscatter coefficient at 700 nm for 1 um size cut" ;
		backscatter_red:units = "1/km" ;
	float GrnTscat_humidified(time, height) ;
		GrnTscat_humidified:long_name = "Humidified total scatter coefficient at 500 nm for 1 um size cut" ;
		GrnTscat_humidified:units = "1/km" ;
		GrnTscat_humidified:comment = "Data have been rehumidified and interpolated using Angstrom exponent" ;
	float GrnBscat_humidified(time, height) ;
		GrnBscat_humidified:long_name = "Humidified backscatter coefficient at 500 nm for 1 um size cut" ;
		GrnBscat_humidified:units = "1/km" ;
		GrnBscat_humidified:comment = "Data have been rehumidified and interpolated using Angstrom exponent" ;
	float BluTscat_humidified(time, height) ;
		BluTscat_humidified:long_name = "Humidified total scatter coefficient at 450 nm for 1 um size cut" ;
		BluTscat_humidified:units = "1/km" ;
		BluTscat_humidified:comment = "Data have been rehumidified" ;
	float BluBscat_humidified(time, height) ;
		BluBscat_humidified:long_name = "Humidified backscatter coefficient at 450 nm for 1 um size cut" ;
		BluBscat_humidified:units = "1/km" ;
		BluBscat_humidified:comment = "Data have been rehumidified" ;
	float RedTscat_humidified(time, height) ;
		RedTscat_humidified:long_name = "Humidified total scatter coefficient at 700 nm for 1 um size cut" ;
		RedTscat_humidified:units = "1/km" ;
		RedTscat_humidified:comment = "Data have been rehumidified and interpolated using Angstrom exponent" ;
	float RedBscat_humidified(time, height) ;
		RedBscat_humidified:long_name = "Humidified backscatter coefficient at 700 nm for 1 um size cut" ;
		RedBscat_humidified:units = "1/km" ;
		RedBscat_humidified:comment = "Data have been rehumidified" ;
	float aod_effect_ht(time) ;
		aod_effect_ht:long_name = "Effective thickness of the aerosol layer that is derived from effective height" ;
		aod_effect_ht:units = "unitless" ;
		aod_effect_ht:comment = "Screened for Joe Michalskys test" ;
	float effect_ht_interpolated(time) ;
		effect_ht_interpolated:long_name = "Effective thickness of the aerosol layer that is interpolated for missing values" ;
		effect_ht_interpolated:units = "km" ;
		effect_ht_interpolated:comment = "Derived from from humidity corrected AOS total scattering coefficient and MFRSR AOD at 500 nm" ;
	float rh_mean_surf_boundary(time) ;
		rh_mean_surf_boundary:long_name = "Mean of relative humidity from sonde from surface to boundary level" ;
		rh_mean_surf_boundary:units = "unitless" ;
		rh_mean_surf_boundary:comment = "Derived from relative humidity from sonde; computed the mean of rh from surface to boundary level" ;
		rh_mean_surf_boundary:comment1 = "At sgp, the boudary levels are 1.0 km for winter, 1.7 for spring, 2 for summer, 1.5 for fall" ;
		rh_mean_surf_boundary:comment2 = "At nsa, the boundary level is a model based plenary boundary level from nsancepgfsbrwflxX1.c1" ;
	float aod_source_flag(time) ;
		aod_source_flag:long_name = "Flag indicating source of best-estimate AOD at 500 nm" ;
		aod_source_flag:units = "unitless" ;
		aod_source_flag:comment = "Values indicate source of be_aod_500" ;
		aod_source_flag:comment1 = "0 indicates interpolated result, 1 indicates MFRSR, 2 RLPROF, 3 regression analysis, -1 indicates missing_value" ;
		aod_source_flag:comment2 = "4 indicates NIMFR" ;
	float effect_ht_flag(time) ;
		effect_ht_flag:long_name = "Flag indicating screening process of effective height" ;
		effect_ht_flag:units = "unitless" ;
		effect_ht_flag:comment = "Values indicate screening process" ;
		effect_ht_flag:comment1 = "0 indicates interpolated result, 1 indicates original computed value, 2 indicates screened value, -1 indicates missing value" ;
	float predicted_aod(time) ;
		predicted_aod:long_name = "Predicted Aerosol Optical Depth using linear regression" ;
		predicted_aod:units = "unitless" ;
		predicted_aod:comment = "AOD = a + b(Mean Relative humidity) + c(Relative Humidity at surface) + d(RH@surface * ln(Total Humidified Scattering)" ;
	float boundary_layer(time) ;
		boundary_layer:long_name = "model diagnosed planetary boundary layer depth from ncepgfsbrwflx only for nsa" ;
		boundary_layer:units = "m" ;
		boundary_layer:comment = "The best line fit within 8 hours at a given time." ;
	float rh_mwrp(time, height) ;
		rh_mwrp:long_name = "Relative humidity profile from mwrp" ;
		rh_mwrp:units = "%" ;
		rh_mwrp:comment = "Interpolated from mwrp data at various heights" ;
	float mean_aod_aos(time) ;
		mean_aod_aos:long_name = "Mean aerosol optical depth derived from extinction profile at nsa" ;
		mean_aod_aos:units = "unitless" ;
		mean_aod_aos:comment = "Data derived as a result of integerating the exitinction profile upto 7 km" ;
	float extinction_profile_scaled(time, height) ;
		extinction_profile_scaled:long_name = "Scaled Aerosol extinction profile at 500 nm" ;
		extinction_profile_scaled:units = "1/km" ;
		extinction_profile_scaled:comment1 = "extinction_profile * (be_aod_500/mean_aod_aos)" ;
		extinction_profile_scaled:comment2 = "This is applicable only at NSA where the extinction profile is derived from humidified TScat and Absorption at surface" ;
	float extinction_profile_aos(time, height) ;
		extinction_profile_aos:long_name = "Aerosol extinction profile at 500 nm" ;
		extinction_profile_aos:units = "1/km" ;
		extinction_profile_aos:comment1 = "The extinction profile is derived from humidified TScat and Absorption at surface" ;
	float extinction_profile_clim(time, height) ;
		extinction_profile_clim:long_name = "Aerosol extinction profile at 500 nm" ;
		extinction_profile_clim:units = "1/km" ;
		extinction_profile_clim:comment1 = "The extinction profile is only for sgp site and obtained from the climatology file." ;
	float rh_sonde(time, height) ;
		rh_sonde:long_name = "Relative humidity profile from sonde" ;
		rh_sonde:units = "%" ;
		rh_sonde:comment = "Interpolated from sonde data at various heights" ;
	float lat ;
		lat:long_name = "north latitude" ;
		lat:units = "degrees" ;
		lat:valid_min = -90.f ;
		lat:valid_max = 90.f ;
	float lon ;
		lon:long_name = "east longitude" ;
		lon:units = "degrees" ;
		lon:valid_min = -180.f ;
		lon:valid_max = 180.f ;
	float alt ;
		alt:long_name = "altitude" ;
		alt:units = "meters above Mean Sea Level" ;

// global attributes:
		:Date = "Mon Mar 24 18:30:57 2008" ;
		:Version = "$State: Exp $" ;
		:Command_Line = "aerosolbe1turn -f sgpC1 -d 20070101" ;
		:BW_Version = "$State: ds-dsutil-bw-4.6-0 $" ;
		:Averaging_interval = "10 minutes" ;
		:Sample_times = "The sample time is the start of the averaging interval" ;
		:Missing_value = "-9999" ;
		:missing-value = "-9999.0" ;
		:Input_Datastream_Descriptions = "A string consisting of the datastream(s), datastream version(s), and datastream date (range)" ;
		:Input_Datastreams_Num = "349" ;
		:Input_Datastreams = "sgpmfrsrC1.c1 : $State: vap-mfrod1barnmich-2.6-0 $ : 20070101.000000-20070201.000000 ;\n",
			"sgpaip1ogrenC1.c1 : $State: process-vap-aip1ogren-1.3-0 $ : 20070101.000000-20070201.000000 ;\n",
			"sgpnoaaaosfitrhC1.b0 : $State: process-ingest-cmdlaos_ingest-9.5-0 $ : 20070101.000000-20070201.000000 ;\n",
			"sgplssondeC1.c1 : $State: process-vap-lssonde-2.5-0 $ : 20061231.000000-20070202.233000 ;\n",
			"sgpsondewnpnC1.b1 : 5.190000 : 20061231.000000-20070202.233000 ;" ;
		:zeb_platform = "sgpaerosolbe1turnC1.c1" ;
		:history = "created by user sivaraman on machine amber at 24-Mar-2008,18:30:58, using $State: zebra-zeblib-4.18-0 $" ;
}