netcdf sgp10rlprofC1.c1.980904.000000 { dimensions: time = UNLIMITED ; // (112 currently) height_wv_high = 113 ; height_wv_low = 25 ; height_aer_high = 80 ; height_aer_low = 60 ; height_dep_high = 80 ; height_wv = 115 ; height_n2_high = 410 ; height_n2_low = 207 ; variables: int base_time ; base_time:string = "4-Sep-98,0:00:00 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 1998-09-04 00:00:00 0:00" ; float height_wv_high(height_wv_high) ; height_wv_high:long_name = "Height range of the high channel water vapor mixing ratio profile" ; height_wv_high:units = "km AGL" ; height_wv_high:comment = "Height given is the center of each range bin" ; height_wv_high:resolution_1st_group_of_83_bins = "0.078 km" ; height_wv_high:resolution_2nd_group_of_15_bins = "0.156 km" ; height_wv_high:resolution_3rd_group_of_15_bins = "0.312 km" ; float height_aer_high(height_aer_high) ; height_aer_high:long_name = "Height range of the high channel aerosol scattering ratio profile" ; height_aer_high:units = "km AGL" ; height_aer_high:comment = "Height given is the center of each range bin" ; height_aer_high:resolution_1st_group_of_30_bins = "0.078 km" ; height_aer_high:resolution_2nd_group_of_20_bins = "0.156 km" ; height_aer_high:resolution_3rd_group_of_30_bins = "0.312 km" ; float height_dep_high(height_dep_high) ; height_dep_high:long_name = "Height range of the high channel depolarization profile" ; height_dep_high:units = "km AGL" ; height_dep_high:comment = "Height given is the center of each range bin" ; height_dep_high:resolution_1st_group_of_30_bins = "0.078 km" ; height_dep_high:resolution_2nd_group_of_20_bins = "0.156 km" ; height_dep_high:resolution_3rd_group_of_30_bins = "0.312 km" ; float height_wv_low(height_wv_low) ; height_wv_low:long_name = "Height range of the low channel water vapor mixing ratio profile" ; height_wv_low:units = "km AGL" ; height_wv_low:comment = "Height given is the center of each range bin" ; height_wv_low:resolution = "0.078 km" ; float height_aer_low(height_aer_low) ; height_aer_low:long_name = "Height range of the low channel aerosol scattering ratio profile" ; height_aer_low:units = "km AGL" ; height_aer_low:comment = "Height given is the center of each range bin" ; height_aer_low:resolution_1st_group_of_30_bins = "0.078 km" ; height_aer_low:resolution_2nd_group_of_20_bins = "0.156 km" ; height_aer_low:resolution_3rd_group_of_10_bins = "0.312 km" ; float height_wv(height_wv) ; height_wv:long_name = "Height range of the merged/combined water vapor mixing ratio profile" ; height_wv:units = "km AGL" ; height_wv:comment = "Height given is the center of each range bin" ; float height_n2_high(height_n2_high) ; height_n2_high:long_name = "Height range of the high channel nitrogen profile" ; height_n2_high:units = "km AGL" ; height_n2_high:comment = "Height given is the center of each range bin" ; float height_n2_low(height_n2_low) ; height_n2_low:long_name = "Height range of the low channel nitrogen profile" ; height_n2_low:units = "km AGL" ; height_n2_low:comment = "Height given is the center of each range bin" ; float total_acquisition_time(time) ; total_acquisition_time:long_name = "Total seconds of data acquired for ensemble" ; total_acquisition_time:units = "seconds" ; total_acquisition_time:comment = "Field calculated from number of shots times laser repetition rate (30 Hertz)" ; float total_shots(time) ; total_shots:long_name = "Number of laser shots in the ensemble" ; total_shots:units = "unitless" ; float average_energy(time) ; average_energy:long_name = "Average laser energy of the ensemble shots" ; average_energy:units = "mJ" ; float n_normal_filter(time) ; n_normal_filter:long_name = "Number of samples for which the normal filters were used in the ensemble" ; n_normal_filter:units = "unitless" ; float n_bright_filter(time) ; n_bright_filter:long_name = "Number of samples for which the bright sky filter was used in the ensemble" ; n_bright_filter:units = "unitless" ; n_bright_filter:comment = "Bright sky filter implies ND=1 filters added to water vapor channels" ; float cloud_base_height(time) ; cloud_base_height:long_name = "Cloud base height from the aerosol scattering ratio profiles" ; cloud_base_height:units = "km AGL" ; cloud_base_height:comment = "The lowest level which is identified as _cloud_ from the cloud mask" ; cloud_base_height:comment2 = "The merged aerosol scattering ratio profile is being used currently" ; cloud_base_height:clear_sky_value = "0.0 This value is assigned when no points are found that were flagged by the cloud mask as _cloud_" ; float hatch_indicator(time) ; hatch_indicator:long_name = "Flag indicating whether hatch is open (0) or not" ; hatch_indicator:units = "unitless" ; hatch_indicator:comment = "This flag is computed by comparing the number of photons counted before the shot is fired against the number collected after the shot is fired. If the hatch is not open, the former is smaller than the latter for all processes" ; float water_vapor_high(time, height_wv_high) ; water_vapor_high:long_name = "Water vapor mixing ratio profile from high range channel" ; water_vapor_high:units = "g/kg" ; water_vapor_high:comment = "Ratio of water vapor signal to nitrogen signal" ; float aerosol_high(time, height_aer_high) ; aerosol_high:long_name = "Aerosol scattering ratio profile from high range channel" ; aerosol_high:units = "unitless" ; aerosol_high:comment = "Ratio of total elastic signal (both beam parallel and beam perpendicular) to nitrogen signal" ; float depolarization_high(time, height_dep_high) ; depolarization_high:long_name = "Depolarization profile from high range channel" ; depolarization_high:units = "percent" ; depolarization_high:comment = "Ratio of beam perpendicular signal to beam parallel signal" ; float water_vapor_low(time, height_wv_low) ; water_vapor_low:long_name = "Water vapor mixing ratio profile from low range channel" ; water_vapor_low:units = "g/kg" ; water_vapor_low:comment = "Ratio of water vapor signal to nitrogen signal" ; float aerosol_low(time, height_aer_low) ; aerosol_low:long_name = "Aerosol scattering ratio profile from low range channel" ; aerosol_low:units = "unitless" ; aerosol_low:comment = "Ratio of elastic signal to nitrogen signal" ; float water_vapor_high_error(time, height_wv_high) ; water_vapor_high_error:long_name = "Uncertainty of the water vapor mixing ratio profile from high range channel" ; water_vapor_high_error:units = "g/kg" ; float aerosol_high_error(time, height_aer_high) ; aerosol_high_error:long_name = "Uncertainty of the aerosol scattering ratio profile from high range channel" ; aerosol_high_error:units = "unitless" ; float depolarization_high_error(time, height_dep_high) ; depolarization_high_error:long_name = "Uncertainty of the depolarization profile from high range channel" ; depolarization_high_error:units = "percent" ; float water_vapor_low_error(time, height_wv_low) ; water_vapor_low_error:long_name = "Uncertainty of the water vapor mixing ratio profile from low range channel" ; water_vapor_low_error:units = "g/kg" ; float aerosol_low_error(time, height_aer_low) ; aerosol_low_error:long_name = "Uncertainty of the aerosol scattering ratio profile from low range channel" ; aerosol_low_error:units = "unitless" ; float water_vapor_high_max_height(time) ; water_vapor_high_max_height:long_name = "Maximum height to use from the water_vapor_high field" ; water_vapor_high_max_height:units = "km AGL" ; water_vapor_high_max_height:comment = "The specified height is the level in which the signal of one of the observed species becomes less than 103% of its background level" ; water_vapor_high_max_height:comment2 = "This is also the maximum height to use from the water_vapor_merged field" ; float water_vapor_low_max_height(time) ; water_vapor_low_max_height:long_name = "Maximum height to use from the water_vapor_low field" ; water_vapor_low_max_height:units = "km AGL" ; water_vapor_low_max_height:comment = "The specified height is the level in which the signal of one of the observed species becomes less than 103% of its background level" ; float water_vapor_merged(time, height_wv) ; water_vapor_merged:long_name = "Merged water vapor profile" ; water_vapor_merged:units = "g/kg" ; water_vapor_merged:comment = "The high and low water vapor channels are linearly combined to make up this profile" ; water_vapor_merged:comment2 = "The first three levels are from the SMOS, 25 meter tower, and 60 meter tower, respectively" ; water_vapor_merged:merge_range_normal_mode = "1.300 - 1.600 km" ; water_vapor_merged:merge_range_bright_mode = "0.600 - 0.900 km" ; float water_vapor_merged_error(time, height_wv) ; water_vapor_merged_error:long_name = "Uncertainty of the merged water vapor mixing ratio profile" ; water_vapor_merged_error:units = "g/kg" ; water_vapor_merged_error:explanation_of_value_-8888 = "This value is used when the poisson error cannot be computed" ; float aerosol_merged(time, height_aer_high) ; aerosol_merged:long_name = "Merged aerosol scattering ratio profile" ; aerosol_merged:units = "unitless" ; aerosol_merged:comment = "The high and low aerosol channels are linearly combined to make up this profile" ; aerosol_merged:merge_range = "2.200 - 2.500 km" ; float aerosol_merged_error(time, height_aer_high) ; aerosol_merged_error:long_name = "Uncertainty of the merged aerosol scattering ratio profile" ; aerosol_merged_error:units = "unitless" ; aerosol_merged_error:explanation_of_value_-8888 = "This value is used when the poisson error cannot be computed" ; float cloud_mask_image(time, height_aer_high) ; cloud_mask_image:long_name = "Merged aerosol scattering ratio profile masked to identify cloud signals" ; cloud_mask_image:units = "Binary" ; cloud_mask_image:comment = "Mask is a 5 x 5 mask in space and time, at the given resolutions" ; cloud_mask_image:comment2 = "This is purely a research oriented field" ; float nitrogen_signal_high(time, height_n2_high) ; nitrogen_signal_high:long_name = "Corrected return at 387 nm" ; nitrogen_signal_high:units = "counts" ; nitrogen_signal_high:comment = "Signal was corrected for system dead-time, the background was subtracted, and was range corrected" ; float nitrogen_signal_low(time, height_n2_low) ; nitrogen_signal_low:long_name = "Corrected return at 387 nm" ; nitrogen_signal_low:units = "counts" ; nitrogen_signal_low:comment = "Signal was corrected for system dead-time, the background was subtracted, and was range corrected" ; float water_vapor_high_count_rate(time, height_wv_high) ; water_vapor_high_count_rate:long_name = "Count rate profile from high range h2o channel" ; water_vapor_high_count_rate:units = "MHz" ; float nitrogen_high_count_rate(time, height_wv_high) ; nitrogen_high_count_rate:long_name = "Count rate profile from high range n2 channel" ; nitrogen_high_count_rate:units = "MHz" ; float water_vapor_low_count_rate(time, height_wv_low) ; water_vapor_low_count_rate:long_name = "Count rate profile from low range h2o channel" ; water_vapor_low_count_rate:units = "MHz" ; float nitrogen_low_count_rate(time, height_wv_low) ; nitrogen_low_count_rate:long_name = "Count rate profile from low range n2 channel" ; nitrogen_low_count_rate:units = "MHz" ; float water_vapor_high_count_rate_background(time) ; water_vapor_high_count_rate_background:long_name = "Background count rate from high range h2o channel" ; water_vapor_high_count_rate_background:units = "MHz" ; float nitrogen_high_count_rate_background(time) ; nitrogen_high_count_rate_background:long_name = "Background count rate from high range n2 channel" ; nitrogen_high_count_rate_background:units = "MHz" ; float water_vapor_low_count_rate_background(time) ; water_vapor_low_count_rate_background:long_name = "Background count rate from low range h2o channel" ; water_vapor_low_count_rate_background:units = "MHz" ; float nitrogen_low_count_rate_background(time) ; nitrogen_low_count_rate_background:long_name = "Background count rate from low range n2 channel" ; nitrogen_low_count_rate_background:units = "MHz" ; float lat ; lat:long_name = "north latitude" ; lat:units = "degrees" ; lat:valid_range = -90.f, 90.f ; float lon ; lon:long_name = "east longitude" ; lon:units = "degrees" ; lon:valid_range = -180.f, 180.f ; float alt ; alt:long_name = "altitude" ; alt:units = "meters above Mean Sea Level" ; // global attributes: :Date = "Sun Sep 6 17:15:46 1998" ; :Version = "Release_1_10" ; :Command_Line = "rlprof10 -s 980904.000000 -e 980905.000000" ; :Input_Platforms = "sgprlC1.a0, sgp30twr10xC1.b1, sgp30twr10xC1.b1, sgp30smosE13.a1" ; :BW_Version = "Release_3_2" ; :Averaging_Int = "10 minutes" ; :Averaging_Comment = "Samples taken with the filter setting not in normal or bright sky mode are EXCLUDED from the ensemble" ; :Sample_time_comment = "The sample time indicates the beginning of the averaging interval" ; :Missing_value = "-9999.0" ; :Original_Averaging_Int = "1 minute" ; :Original_Vertical_Resolution_Low_Ch = "0.039 km" ; :Original_Vertical_Resolution_High_Ch = "0.039 km" ; :Background_Bin_Comment = "The background signal is calculated from these raw photon bins, for each channel" ; :Background_Bin_Range_Low_Ch = "{5, 64}" ; :Background_Bin_Range_High_Ch = "{5, 64}" ; :Bins_Before_Shot_Comment = "The number of bins recorded before the laser shot, which provides background information for each channel" ; :Bins_Before_Shot_Low_Ch = "67" ; :Bins_Before_Shot_High_Ch = "67" ; :Calibration_Factors_Comment = "Calibration factors are scalar factors applied to the profile" ; :Calibration_Low_Mixing_Ratio = "43.01000, 44.43700" ; :Calibration_Low_Aerosol_Scattering_Ratio = "0.50630, 0.50630" ; :Calibration_High_Mixing_Ratio = "3.31420, 48.85100" ; :Calibration_High_Aerosol_Scattering_Ratio = "0.00960, 0.00960" ; :Calibration_Depolarization_Ratio = "1.51600, 1.51600" ; :Pileup_Comment = "Deadtime correction for each of the PMTs -- real_sig is detected_sig / (1 - pileup * detected_sig / number_of_shots)" ; :Pileup_h2o_Low_Ch = "0.02500" ; :Pileup_n2_Low_Ch = "0.02000" ; :Pileup_Aerosol_Low_Ch = "0.03000" ; :Pileup_h2o_High_Ch = "0.01500" ; :Pileup_n2_High_Ch = "0.02500" ; :Pileup_Aerosol_High_Ch = "0.02500" ; :Pileup_Depolarization_High_Ch = "0.04000" ; :High_ASR_comment = "In computing the high aerosol scattering ratio (ASR) product, the high beam parallel channel must be weighted with a factor of 65.963058 before adding in the contribution from the beam perpendicular channel" ; :Overlap_correction_lookup_table_date = "980504\n", "" ; :zeb_platform = "sgp10rlprofC1.c1" ; :history = "created by Zeb DataStore, 6-Sep-98,17:15:46, $RCSfile: DFA_NetCDF.c,v $ $Revision: 3.47 $\n", "" ; }