netcdf nsamwrret1liljclouC1.c2.20221231.000009 { dimensions: time = UNLIMITED ; // (3899 currently) nlevels = 54 ; nvbias = 100 ; variables: int base_time ; base_time:string = "2022-12-31 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 2022-12-31 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 2022-12-31 00:00:00 0:00" ; time:standard_name = "time" ; float sonde_level(nlevels) ; sonde_level:long_name = "Sonde level height" ; sonde_level:units = "km" ; sonde_level:standard_name = "height" ; float be_pwv(time) ; be_pwv:long_name = "Precipitable water vapor best-estimate value" ; be_pwv:units = "cm" ; be_pwv:missing_value = -9999.f ; be_pwv:comment = "Equal to stat2_pwv during periods where phys_pwv has bad quality, and equal to phys_pwv at all other times. If both stat2_pwv and phys_pwv have bad quality be_pwv is set to missing_value. In addition, be_pwv values whose quality of the originating value is indeterminate, are set to missing_value." ; be_pwv:ancillary_variables = "qc_be_pwv" ; be_pwv:standard_name = "lwe_thickness_of_atmosphere_mass_content_of_water_vapor" ; int qc_be_pwv(time) ; qc_be_pwv:long_name = "Quality check results on variable: Precipitable water vapor best-estimate value" ; qc_be_pwv:units = "1" ; qc_be_pwv:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_be_pwv:fail_min = -1.f ; qc_be_pwv:fail_max = 10.f ; qc_be_pwv:flag_method = "bit" ; qc_be_pwv:bit_1_description = "Supporting data has bad or indeterminate quality, value set to missing_value." ; qc_be_pwv:bit_1_assessment = "Bad" ; qc_be_pwv:bit_2_description = "Value is less than the fail_min, data value set to missing_value." ; qc_be_pwv:bit_2_assessment = "Bad" ; qc_be_pwv:bit_3_description = "Value is greater than the fail_max, data value set to missing_value." ; qc_be_pwv:bit_3_assessment = "Bad" ; qc_be_pwv:standard_name = "quality_flag" ; float be_lwp(time) ; be_lwp:long_name = "Liquid water path best-estimate value" ; be_lwp:units = "g/m^2" ; be_lwp:missing_value = -9999.f ; be_lwp:comment = "Equal to stat2_lwp during periods where phys_lwp has bad quality, and equal to phys_lwp at all other times. If both stat2_lwp and phys_lwp have bad quality be_lwp is set to missing_value. In addition, be_lwp values whose quality of the originating value is indeterminate, are set to missing_value." ; be_lwp:ancillary_variables = "qc_be_lwp" ; be_lwp:standard_name = "atmosphere_mass_content_of_cloud_liquid_water" ; int qc_be_lwp(time) ; qc_be_lwp:long_name = "Quality check results on variable: Liquid water path best-estimate value" ; qc_be_lwp:units = "1" ; qc_be_lwp:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_be_lwp:fail_min = -50.f ; qc_be_lwp:flag_method = "bit" ; qc_be_lwp:bit_1_description = "Supporting data has bad or indeterminate quality, value set to missing_value." ; qc_be_lwp:bit_1_assessment = "Bad" ; qc_be_lwp:bit_2_description = "Value is less than the fail_min, data value set to missing_value." ; qc_be_lwp:bit_2_assessment = "Bad" ; qc_be_lwp:bit_3_description = "be_pwv value is less than its fail_min, be_lwp value set to missing_value." ; qc_be_lwp:bit_3_assessment = "Bad" ; qc_be_lwp:bit_4_description = "be_pwv value is greater than its fail_max, be_lwp value set to missing_value." ; qc_be_lwp:bit_4_assessment = "Bad" ; qc_be_lwp:standard_name = "quality_flag" ; int be_retrieval_status(time) ; be_retrieval_status:long_name = "Best-estimate retrieval status" ; be_retrieval_status:units = "1" ; be_retrieval_status:flag_values = 0, 1, 2 ; be_retrieval_status:flag_meanings = "no_retrieval physical_retrieval stat2_retrieval" ; be_retrieval_status:flag_0_description = "be_lwp and be_pwv values were missing, no retrieval performed" ; be_retrieval_status:flag_1_description = "physical retrieval performed" ; be_retrieval_status:flag_2_description = "stat2 retrieval performed" ; float cloud_base_height(time) ; cloud_base_height:long_name = "Cloud base height" ; cloud_base_height:units = "km" ; cloud_base_height:missing_value = -9999.f ; cloud_base_height:comment = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; cloud_base_height:ancillary_variables = "qc_cloud_base_height" ; cloud_base_height:standard_name = "height" ; cloud_base_height:cell_transform = "time: interpolation" ; cloud_base_height:source = "nsaarsclkazr1kolliasC1.c0:cloud_base_best_estimate" ; int qc_cloud_base_height(time) ; qc_cloud_base_height:long_name = "Quality check results on variable: Cloud base height" ; qc_cloud_base_height:units = "1" ; qc_cloud_base_height:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_cloud_base_height:flag_method = "bit" ; qc_cloud_base_height:bit_1_description = "Data has bad quality, value set to missing_value." ; qc_cloud_base_height:bit_1_assessment = "Bad" ; qc_cloud_base_height:bit_2_description = "Clear sky conditions, data value set to missing_value." ; qc_cloud_base_height:bit_2_assessment = "Bad" ; qc_cloud_base_height:bit_3_description = "No input file available for day, data value set to 1 km." ; qc_cloud_base_height:bit_3_assessment = "Indeterminate" ; qc_cloud_base_height:standard_name = "quality_flag" ; float cloud_temp(time) ; cloud_temp:long_name = "Cloud temperature used in the retrieval" ; cloud_temp:units = "K" ; cloud_temp:missing_value = -9999.f ; cloud_temp:ancillary_variables = "qc_cloud_temp" ; int qc_cloud_temp(time) ; qc_cloud_temp:long_name = "Quality check results on variable: Cloud temperature used in the retrieval" ; qc_cloud_temp:units = "1" ; qc_cloud_temp:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_cloud_temp:flag_method = "bit" ; qc_cloud_temp:bit_1_description = "No cloud found, cloud temperature set to temperature at top of the profile" ; qc_cloud_temp:bit_1_assessment = "Indeterminate" ; qc_cloud_temp:bit_2_description = "Cloud temperature below 230 K, data value set to 230 K" ; qc_cloud_temp:bit_2_assessment = "Indeterminate" ; qc_cloud_temp:bit_3_description = "MWR tbsky(tbsky23 or tbsky31) has bad QC assessment, data value set to missing_value." ; qc_cloud_temp:bit_3_assessment = "Bad" ; qc_cloud_temp:standard_name = "quality_flag" ; float surface_temp(time) ; surface_temp:long_name = "Surface temperature" ; surface_temp:units = "K" ; surface_temp:missing_value = -9999.f ; surface_temp:ancillary_variables = "qc_surface_temp" ; surface_temp:source = "nsametC1.b1:temp_mean" ; surface_temp:comment = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; surface_temp:cell_transform = "time: interpolation" ; int qc_surface_temp(time) ; qc_surface_temp:long_name = "Quality check results on variable: Surface temperature" ; qc_surface_temp:units = "1" ; qc_surface_temp:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_surface_temp:flag_method = "bit" ; qc_surface_temp:bit_1_description = "Data has bad quality, value set to missing_value." ; qc_surface_temp:bit_1_assessment = "Bad" ; qc_surface_temp:bit_2_description = "Data has indeterminate quality" ; qc_surface_temp:bit_2_assessment = "Indeterminate" ; qc_surface_temp:standard_name = "quality_flag" ; float surface_vapor_pres(time) ; surface_vapor_pres:long_name = "Surface vapor pressure" ; surface_vapor_pres:units = "kPa" ; surface_vapor_pres:missing_value = -9999.f ; surface_vapor_pres:ancillary_variables = "qc_surface_vapor_pres" ; surface_vapor_pres:source = "nsametC1.b1:vapor_pressure_mean" ; surface_vapor_pres:comment = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; surface_vapor_pres:cell_transform = "time: interpolation" ; int qc_surface_vapor_pres(time) ; qc_surface_vapor_pres:long_name = "Quality check results on variable: Surface vapor pressure" ; qc_surface_vapor_pres:units = "1" ; qc_surface_vapor_pres:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_surface_vapor_pres:flag_method = "bit" ; qc_surface_vapor_pres:bit_1_description = "Data has bad quality, value set to missing_value." ; qc_surface_vapor_pres:bit_1_assessment = "Bad" ; qc_surface_vapor_pres:bit_2_description = "Data has indeterminate quality" ; qc_surface_vapor_pres:bit_2_assessment = "Indeterminate" ; qc_surface_vapor_pres:standard_name = "quality_flag" ; float surface_pres(time) ; surface_pres:long_name = "Surface pressure" ; surface_pres:units = "kPa" ; surface_pres:missing_value = -9999.f ; surface_pres:ancillary_variables = "qc_surface_pres" ; surface_pres:source = "nsametC1.b1:atmos_pressure" ; surface_pres:comment = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; surface_pres:cell_transform = "time: interpolation" ; int qc_surface_pres(time) ; qc_surface_pres:long_name = "Quality check results on variable: Surface pressure" ; qc_surface_pres:units = "1" ; qc_surface_pres:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_surface_pres:flag_method = "bit" ; qc_surface_pres:bit_1_description = "Data has bad quality, value set to missing_value." ; qc_surface_pres:bit_1_assessment = "Bad" ; qc_surface_pres:bit_2_description = "Data has indeterminate quality" ; qc_surface_pres:bit_2_assessment = "Indeterminate" ; qc_surface_pres:standard_name = "quality_flag" ; float surface_rh(time) ; surface_rh:long_name = "Surface relative humidity" ; surface_rh:units = "%" ; surface_rh:missing_value = -9999.f ; surface_rh:ancillary_variables = "qc_surface_rh" ; surface_rh:source = "nsametC1.b1:rh_mean" ; surface_rh:comment = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; surface_rh:cell_transform = "time: interpolation" ; int qc_surface_rh(time) ; qc_surface_rh:long_name = "Quality check results on variable: Surface relative humidity" ; qc_surface_rh:units = "1" ; qc_surface_rh:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_surface_rh:flag_method = "bit" ; qc_surface_rh:bit_1_description = "Data has bad quality, value set to missing_value." ; qc_surface_rh:bit_1_assessment = "Bad" ; qc_surface_rh:bit_2_description = "Data has indeterminate quality" ; qc_surface_rh:bit_2_assessment = "Indeterminate" ; qc_surface_rh:standard_name = "quality_flag" ; float tbsky23(time) ; tbsky23:long_name = "Sky brightness temperature at 23.8 GHz" ; tbsky23:units = "K" ; tbsky23:missing_value = -9999.f ; tbsky23:comment = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; tbsky23:ancillary_variables = "qc_tbsky23" ; tbsky23:source = "nsamwrlosC1.b1:tbsky23" ; tbsky23:cell_transform = "time: interpolation" ; int qc_tbsky23(time) ; qc_tbsky23:long_name = "Quality check results on variable: Sky brightness temperature at 23.8 GHz" ; qc_tbsky23:units = "1" ; qc_tbsky23:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_tbsky23:fail_min = 2.73f ; qc_tbsky23:fail_max = 100.f ; qc_tbsky23:flag_method = "bit" ; qc_tbsky23:bit_1_description = "Data value not available in input file, data value set to missing_value." ; qc_tbsky23:bit_1_assessment = "Bad" ; qc_tbsky23:bit_2_description = "Value is less than the fail_min." ; qc_tbsky23:bit_2_assessment = "Bad" ; qc_tbsky23:bit_3_description = "Value is greater than the fail_max." ; qc_tbsky23:bit_3_assessment = "Bad" ; qc_tbsky23:bit_4_description = "Difference between current and previous values exceeds valid_delta." ; qc_tbsky23:bit_4_assessment = "Indeterminate" ; qc_tbsky23:bit_5_description = "Water on window likely." ; qc_tbsky23:bit_5_assessment = "Indeterminate" ; qc_tbsky23:bit_6_description = "Thermal stabilization problems (warm-up)." ; qc_tbsky23:bit_6_assessment = "Indeterminate" ; qc_tbsky23:bit_7_description = "Thermal stabilization problems (overheat)." ; qc_tbsky23:bit_7_assessment = "Indeterminate" ; qc_tbsky23:bit_8_description = "Possible unexplained anomaly (spike)" ; qc_tbsky23:bit_8_assessment = "Indeterminate" ; qc_tbsky23:bit_9_description = "Unexplained anomaly (spike)" ; qc_tbsky23:bit_9_assessment = "Bad" ; qc_tbsky23:bit_10_description = "Unexplained anomaly, detected by value comparisons (spike)" ; qc_tbsky23:bit_10_assessment = "Bad" ; qc_tbsky23:bit_11_description = "Invalid optical depth (i.e. ratio of difference between the mean atmos radiating temp and cosmic background temp and the difference between mean atmos radiating temp and brightness temp is not > 1 for both 23 and 31 GHz." ; qc_tbsky23:bit_11_assessment = "Bad" ; qc_tbsky23:standard_name = "quality_flag" ; float tbsky31(time) ; tbsky31:long_name = "Sky brightness temperature at 31.4 GHz" ; tbsky31:units = "K" ; tbsky31:missing_value = -9999.f ; tbsky31:comment = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; tbsky31:ancillary_variables = "qc_tbsky31" ; tbsky31:source = "nsamwrlosC1.b1:tbsky31" ; tbsky31:cell_transform = "time: interpolation" ; int qc_tbsky31(time) ; qc_tbsky31:long_name = "Quality check results on variable: Sky brightness temperature at 31.4 GHz" ; qc_tbsky31:units = "1" ; qc_tbsky31:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_tbsky31:fail_min = 2.73f ; qc_tbsky31:fail_max = 100.f ; qc_tbsky31:flag_method = "bit" ; qc_tbsky31:bit_1_description = "Data value not available in input file, data value set to missing_value." ; qc_tbsky31:bit_1_assessment = "Bad" ; qc_tbsky31:bit_2_description = "Value is less than the fail_min." ; qc_tbsky31:bit_2_assessment = "Bad" ; qc_tbsky31:bit_3_description = "Value is greater than the fail_max." ; qc_tbsky31:bit_3_assessment = "Bad" ; qc_tbsky31:bit_4_description = "Difference between current and previous values exceeds valid_delta." ; qc_tbsky31:bit_4_assessment = "Indeterminate" ; qc_tbsky31:bit_5_description = "Water on window likely." ; qc_tbsky31:bit_5_assessment = "Indeterminate" ; qc_tbsky31:bit_6_description = "Thermal stabilization problems (warm-up)." ; qc_tbsky31:bit_6_assessment = "Indeterminate" ; qc_tbsky31:bit_7_description = "Thermal stabilization problems (overheat)." ; qc_tbsky31:bit_7_assessment = "Indeterminate" ; qc_tbsky31:bit_8_description = "Possible unexplained anomaly (spike)" ; qc_tbsky31:bit_8_assessment = "Indeterminate" ; qc_tbsky31:bit_9_description = "Unexplained anomaly (spike)" ; qc_tbsky31:bit_9_assessment = "Bad" ; qc_tbsky31:bit_10_description = "Unexplained anomaly, detected by value comparisons (spike)" ; qc_tbsky31:bit_10_assessment = "Bad" ; qc_tbsky31:bit_11_description = "Invalid optical depth (i.e. ratio of difference between the mean atmos radiating temp and cosmic background temp and the difference between mean atmos radiating temp and brightness temp is not > 1 for both 23 and 31 GHz." ; qc_tbsky31:bit_11_assessment = "Bad" ; qc_tbsky31:standard_name = "quality_flag" ; float orig_pwv(time) ; orig_pwv:long_name = "Total water vapor along LOS path" ; orig_pwv:units = "cm" ; orig_pwv:missing_value = -9999.f ; orig_pwv:comment1 = "Value originally reported by MWR instrument" ; orig_pwv:comment2 = "Value retrieved using monthly mean retrieval coefficients" ; orig_pwv:comment3 = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; orig_pwv:ancillary_variables = "qc_orig_pwv" ; orig_pwv:source = "nsamwrlosC1.b1:vap" ; orig_pwv:cell_transform = "time: interpolation" ; int qc_orig_pwv(time) ; qc_orig_pwv:long_name = "Quality check results on variable: Total water vapor along LOS path" ; qc_orig_pwv:units = "1" ; qc_orig_pwv:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_orig_pwv:fail_min = 0.f ; qc_orig_pwv:flag_method = "bit" ; qc_orig_pwv:bit_1_description = "Data value not available in input file, data value set to missing_value." ; qc_orig_pwv:bit_1_assessment = "Bad" ; qc_orig_pwv:bit_2_description = "Value is less than the fail_min." ; qc_orig_pwv:bit_2_assessment = "Bad" ; qc_orig_pwv:standard_name = "quality_flag" ; float orig_lwp(time) ; orig_lwp:long_name = "Total liquid water along LOS path" ; orig_lwp:units = "g/m^2" ; orig_lwp:comment1 = "Value originally reported by MWR instrument" ; orig_lwp:comment2 = "Value retrieved using monthly mean retrieval coefficients" ; orig_lwp:comment3 = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; orig_lwp:missing_value = -9999.f ; orig_lwp:ancillary_variables = "qc_orig_lwp" ; orig_lwp:source = "nsamwrlosC1.b1:liq" ; orig_lwp:cell_transform = "time: interpolation" ; int qc_orig_lwp(time) ; qc_orig_lwp:long_name = "Quality check results on variable: Total liquid water along LOS path" ; qc_orig_lwp:units = "1" ; qc_orig_lwp:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_orig_lwp:fail_min = -60.513f ; qc_orig_lwp:flag_method = "bit" ; qc_orig_lwp:bit_1_description = "Data value not available in input file, data value set to missing_value." ; qc_orig_lwp:bit_1_assessment = "Bad" ; qc_orig_lwp:bit_2_description = "Value is less than the fail_min." ; qc_orig_lwp:bit_2_assessment = "Bad" ; qc_orig_lwp:standard_name = "quality_flag" ; float tbsky23_nobias(time) ; tbsky23_nobias:long_name = "Sky brightness temperature at 23.8 GHz, with the bias removed" ; tbsky23_nobias:units = "K" ; tbsky23_nobias:missing_value = -9999.f ; float tbsky31_nobias(time) ; tbsky31_nobias:long_name = "Sky brightness temperature at 31.4 GHz, with the bias removed" ; tbsky31_nobias:units = "K" ; tbsky31_nobias:missing_value = -9999.f ; float stat2_pwv(time) ; stat2_pwv:long_name = "Precipitable water vapor retrieved using predicted mean radiating temperatures and retrieval coefficients" ; stat2_pwv:units = "cm" ; stat2_pwv:missing_value = -9999.f ; stat2_pwv:forward_model = "monoRTM" ; stat2_pwv:ancillary_variables = "qc_stat2_pwv" ; int qc_stat2_pwv(time) ; qc_stat2_pwv:long_name = "Quality check results on variable: Precipitable water vapor retrieved using predicted mean radiating temperatures and retrieval coefficients" ; qc_stat2_pwv:units = "1" ; qc_stat2_pwv:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_stat2_pwv:flag_method = "bit" ; qc_stat2_pwv:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_stat2_pwv:bit_1_assessment = "Bad" ; qc_stat2_pwv:bit_2_description = "cloud_base_height field is missing." ; qc_stat2_pwv:bit_2_assessment = "Indeterminate" ; qc_stat2_pwv:bit_3_description = "One of the surface PTU fields (surface_pres, surface_temp, surface_vapor_pres, or surface_rh) failed mentor qc checks." ; qc_stat2_pwv:bit_3_assessment = "Indeterminate" ; qc_stat2_pwv:bit_4_description = "MWR tbsky(tbsky23 or tbsky31) failed one of the following: max, water on window, thermal stabilization(warm-up or overheat), or possible spike." ; qc_stat2_pwv:bit_4_assessment = "Indeterminate" ; qc_stat2_pwv:bit_5_description = "One of the surface PTU fields (surface_pres, surface_temp, surface_vapor_pres, or surface_rh) missing." ; qc_stat2_pwv:bit_5_assessment = "Bad" ; qc_stat2_pwv:bit_6_description = "MWR tbsky(tbsky23 or tbsky31) failed one of the following: missing, spike, invalid optical depth, min, > 200 K test." ; qc_stat2_pwv:bit_6_assessment = "Bad" ; qc_stat2_pwv:standard_name = "quality_flag" ; float stat2_pwv_uncertainty(time) ; stat2_pwv_uncertainty:long_name = "1-sigma uncertainty in precipitable water vapor retrieved using the stat2 approach" ; stat2_pwv_uncertainty:units = "cm" ; stat2_pwv_uncertainty:comment = "Only captures the uncertainty in the retrieved product that is due to the uncertainties of the observations used in the retrieval; the uncertainty associated with the statistical fit is not captured here" ; stat2_pwv_uncertainty:tbsky_uncertainty = "The assumed uncertainties in the observed brightness temperatures are given in the global attributes" ; stat2_pwv_uncertainty:psurf_uncertainty = " 0.350 mb; the uncertainty in the surface pressure" ; stat2_pwv_uncertainty:tsurf_uncertainty = " 0.500 K; the uncertainty in the surface temperature" ; stat2_pwv_uncertainty:rhsurf_uncertainty = " 0.030 %; the uncertainty in the surface relative humidity" ; stat2_pwv_uncertainty:tcld_uncertainty = " 2.000 K; the uncertainty in the cloud temperature" ; stat2_pwv_uncertainty:missing_value = -9999.f ; float stat2_lwp(time) ; stat2_lwp:long_name = "Cloud liquid water path retrieved using predicted mean radiating temperatures and retrieval coefficients" ; stat2_lwp:units = "g/m^2" ; stat2_lwp:missing_value = -9999.f ; stat2_lwp:forward_model = "monoRTM" ; stat2_lwp:ancillary_variables = "qc_stat2_lwp" ; int qc_stat2_lwp(time) ; qc_stat2_lwp:long_name = "Quality check results on variable: Cloud liquid water path retrieved using predicted mean radiating temperatures and retrieval coefficients" ; qc_stat2_lwp:units = "1" ; qc_stat2_lwp:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_stat2_lwp:flag_method = "bit" ; qc_stat2_lwp:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_stat2_lwp:bit_1_assessment = "Bad" ; qc_stat2_lwp:bit_2_description = "cloud_base_height field is missing." ; qc_stat2_lwp:bit_2_assessment = "Indeterminate" ; qc_stat2_lwp:bit_3_description = "One of the surface PTU fields (surface_pres, surface_temp, surface_vapor_pres, or surface_rh) failed mentor qc checks." ; qc_stat2_lwp:bit_3_assessment = "Indeterminate" ; qc_stat2_lwp:bit_4_description = "MWR tbsky(tbsky23 or tbsky31) failed one of the following: max, water on window, thermal stabilization(warm-up or overheat), or possible spike." ; qc_stat2_lwp:bit_4_assessment = "Indeterminate" ; qc_stat2_lwp:bit_5_description = "One of the surface PTU fields (surface_pres, surface_temp, surface_vapor_pres, or surface_rh) missing." ; qc_stat2_lwp:bit_5_assessment = "Bad" ; qc_stat2_lwp:bit_6_description = "MWR tbsky(tbsky23 or tbsky31) failed one of the following: missing, spike, invalid optical depth, min, > 200 K test." ; qc_stat2_lwp:bit_6_assessment = "Bad" ; qc_stat2_lwp:standard_name = "quality_flag" ; float stat2_lwp_uncertainty(time) ; stat2_lwp_uncertainty:long_name = "1-sigma uncertainty in cloud liquid water path retrieved using the stat2 approach" ; stat2_lwp_uncertainty:units = "g/m^2" ; stat2_lwp_uncertainty:comment = "Only captures the uncertainty in the retrieved product that is due to the uncertainties of the observations used in the retrieval; the uncertainty associated with the statistical fit is not captured here" ; stat2_lwp_uncertainty:tbsky_uncertainty = "The assumed uncertainties in the observed brightness temperatures are given in the global attributes" ; stat2_lwp_uncertainty:psurf_uncertainty = " 0.350 mb; the uncertainty in the surface pressure" ; stat2_lwp_uncertainty:tsurf_uncertainty = " 0.500 K; the uncertainty in the surface temperature" ; stat2_lwp_uncertainty:rhsurf_uncertainty = " 0.030 %; the uncertainty in the surface relative humidity" ; stat2_lwp_uncertainty:tcld_uncertainty = " 2.000 K; the uncertainty in the cloud temperature" ; stat2_lwp_uncertainty:missing_value = -9999.f ; int stat2_tliq_status(time) ; stat2_tliq_status:long_name = "Status flag indicating stat2 cloud liquid water temperature ranges" ; stat2_tliq_status:units = "1" ; stat2_tliq_status:flag_values = 0, 1, 2, 3 ; stat2_tliq_status:flag_meanings = "within_expected_range tliq_zero<=tliqtliq tliq_not_defined" ; stat2_tliq_status:flag_0_description = "tliq within expected range" ; stat2_tliq_status:flag_1_description = "tliq_zero <= tliq < tliq_min" ; stat2_tliq_status:flag_2_description = "tliq_zero > tliq" ; stat2_tliq_status:flag_3_description = "tliq not defined; i.e., unable to determine the temperature of the cloud liquid water" ; stat2_tliq_status:tliq_zero_value = "223 K" ; stat2_tliq_status:tliq_min_value = "243 K" ; float tbsky23_calculated(time) ; tbsky23_calculated:long_name = "Calculated sky brightness temperature at 23.8 GHz" ; tbsky23_calculated:units = "K" ; tbsky23_calculated:missing_value = -9999.f ; tbsky23_calculated:comment = "Calculated using monoRTM using original input radiosonde" ; tbsky23_calculated:pwv_scale_factor = "1" ; tbsky23_calculated:lwp_scale_factor = "0" ; tbsky23_calculated:ancillary_variables = "qc_tbsky23_calculated" ; int qc_tbsky23_calculated(time) ; qc_tbsky23_calculated:long_name = "Quality check results on variable: Calculated sky brightness temperature at 23.8 GHz" ; qc_tbsky23_calculated:units = "1" ; qc_tbsky23_calculated:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_tbsky23_calculated:flag_method = "bit" ; qc_tbsky23_calculated:bit_1_description = "Physical retrieval not performed, data value set to missing_value." ; qc_tbsky23_calculated:bit_1_assessment = "Bad" ; qc_tbsky23_calculated:bit_2_description = "Bad data returned by atmpath function, data value set to missing_value." ; qc_tbsky23_calculated:bit_2_assessment = "Bad" ; qc_tbsky23_calculated:standard_name = "quality_flag" ; float tbsky31_calculated(time) ; tbsky31_calculated:long_name = "Calculated sky brightness temperature at 31.4 GHz" ; tbsky31_calculated:units = "K" ; tbsky31_calculated:missing_value = -9999.f ; tbsky31_calculated:comment = "Calculated using monoRTM using original input radiosonde" ; tbsky31_calculated:pwv_scale_factor = "1" ; tbsky31_calculated:lwp_scale_factor = "0" ; tbsky31_calculated:ancillary_variables = "qc_tbsky31_calculated" ; int qc_tbsky31_calculated(time) ; qc_tbsky31_calculated:long_name = "Quality check results on variable: Calculated sky brightness temperature at 31.4 GHz" ; qc_tbsky31_calculated:units = "1" ; qc_tbsky31_calculated:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_tbsky31_calculated:flag_method = "bit" ; qc_tbsky31_calculated:bit_1_description = "Physical retrieval not performed, data value set to missing_value." ; qc_tbsky31_calculated:bit_1_assessment = "Bad" ; qc_tbsky31_calculated:bit_2_description = "Bad data returned by atmpath function, data value set to missing_value." ; qc_tbsky31_calculated:bit_2_assessment = "Bad" ; qc_tbsky31_calculated:standard_name = "quality_flag" ; float phys_pwv(time) ; phys_pwv:long_name = "Precipitable water vapor retrieved using a physical/iterative approach" ; phys_pwv:units = "cm" ; phys_pwv:missing_value = -9999.f ; phys_pwv:forward_model = "Atmospheric Environmental Research monoRTM" ; phys_pwv:ancillary_variables = "qc_phys_pwv" ; int qc_phys_pwv(time) ; qc_phys_pwv:long_name = "Quality check results on variable: Precipitable water vapor retrieved using a physical/iterative approach" ; qc_phys_pwv:units = "1" ; qc_phys_pwv:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_phys_pwv:flag_method = "bit" ; qc_phys_pwv:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_phys_pwv:bit_1_assessment = "Bad" ; qc_phys_pwv:bit_2_description = "cloud_base_height field is missing." ; qc_phys_pwv:bit_2_assessment = "Indeterminate" ; qc_phys_pwv:bit_3_description = "MWR tbsky(tbsky23 or tbsky31) failed one of the following: max, water on window, thermal stabilization(warm-up or overheat), or possible spike." ; qc_phys_pwv:bit_3_assessment = "Indeterminate" ; qc_phys_pwv:bit_4_description = "MWR tbsky(tbsky23 or tbsky31) failed one of the following: missing, spike, invalid optical depth, min, > 200 K test." ; qc_phys_pwv:bit_4_assessment = "Bad" ; qc_phys_pwv:standard_name = "quality_flag" ; float phys_pwv_uncertainty(time) ; phys_pwv_uncertainty:long_name = "1-sigma uncertainty in precipitable water vapor retrieved using a physical/iterative approach" ; phys_pwv_uncertainty:units = "cm" ; phys_pwv_uncertainty:missing_value = -9999.f ; phys_pwv_uncertainty:comment = "Assumed uncertainties in the observed brightness temperatures are given in the global attributes" ; phys_pwv_uncertainty:ancillary_variables = "qc_phys_pwv_uncertainty" ; int qc_phys_pwv_uncertainty(time) ; qc_phys_pwv_uncertainty:long_name = "Quality check results on variable: 1-sigma uncertainty in precipitable water vapor retrieved using a physical/iterative approach" ; qc_phys_pwv_uncertainty:units = "1" ; qc_phys_pwv_uncertainty:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_phys_pwv_uncertainty:flag_method = "bit" ; qc_phys_pwv_uncertainty:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_phys_pwv_uncertainty:bit_1_assessment = "Bad" ; qc_phys_pwv_uncertainty:standard_name = "quality_flag" ; float phys_lwp(time) ; phys_lwp:long_name = "Cloud liquid water path retrieved using a physical/iterative approach" ; phys_lwp:units = "g/m^2" ; phys_lwp:missing_value = -9999.f ; phys_lwp:forward_model = "Atmospheric Environmental Research monoRTM" ; phys_lwp:ancillary_variables = "qc_phys_lwp" ; int qc_phys_lwp(time) ; qc_phys_lwp:long_name = "Quality check results on variable: Cloud liquid water path retrieved using a physical/iterative approach" ; qc_phys_lwp:units = "1" ; qc_phys_lwp:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_phys_lwp:flag_method = "bit" ; qc_phys_lwp:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_phys_lwp:bit_1_assessment = "Bad" ; qc_phys_lwp:bit_2_description = "cloud_base_height field is missing." ; qc_phys_lwp:bit_2_assessment = "Indeterminate" ; qc_phys_lwp:bit_3_description = "MWR tbsky(tbsky23 or tbsky31) failed one of the following: max, water on window, thermal stabilization(warm-up or overheat), or possible spike." ; qc_phys_lwp:bit_3_assessment = "Indeterminate" ; qc_phys_lwp:bit_4_description = "MWR tbsky(tbsky23 or tbsky31) failed one of the following: missing, spike, invalid optical depth, min, > 200 K test." ; qc_phys_lwp:bit_4_assessment = "Bad" ; qc_phys_lwp:standard_name = "quality_flag" ; float phys_lwp_uncertainty(time) ; phys_lwp_uncertainty:long_name = "1-sigma uncertainty in cloud liquid water path retrieved using a physical/iterative approach" ; phys_lwp_uncertainty:units = "g/m^2" ; phys_lwp_uncertainty:missing_value = -9999.f ; phys_lwp_uncertainty:comment = "Assumed uncertainties in the observed brightness temperatures are given in the global attributes" ; phys_lwp_uncertainty:ancillary_variables = "qc_phys_lwp_uncertainty" ; int qc_phys_lwp_uncertainty(time) ; qc_phys_lwp_uncertainty:long_name = "Quality check results on variable: 1-sigma uncertainty in cloud liquid water path retrieved using a physical/iterative approach" ; qc_phys_lwp_uncertainty:units = "1" ; qc_phys_lwp_uncertainty:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_phys_lwp_uncertainty:flag_method = "bit" ; qc_phys_lwp_uncertainty:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_phys_lwp_uncertainty:bit_1_assessment = "Bad" ; qc_phys_lwp_uncertainty:standard_name = "quality_flag" ; int phys_niter(time) ; phys_niter:long_name = "Number of iterations needed by the physical retrieval for convergence" ; phys_niter:units = "count" ; phys_niter:missing_value = -9999 ; phys_niter:ancillary_variables = "qc_phys_niter" ; int qc_phys_niter(time) ; qc_phys_niter:long_name = "Quality check results on variable: Number of iterations needed by the physical retrieval for convergence" ; qc_phys_niter:units = "1" ; qc_phys_niter:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_phys_niter:flag_method = "bit" ; qc_phys_niter:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_phys_niter:bit_1_assessment = "Bad" ; qc_phys_niter:standard_name = "quality_flag" ; float phys_rms(time) ; phys_rms:long_name = "Root mean square difference between the computed and observed brightness temperatures for the last iteration" ; phys_rms:units = "K" ; phys_rms:missing_value = -9999.f ; phys_rms:ancillary_variables = "qc_phys_rms" ; int qc_phys_rms(time) ; qc_phys_rms:long_name = "Quality check results on variable: Root mean square difference between the computed and observed brightness temperatures for the last iteration" ; qc_phys_rms:units = "1" ; qc_phys_rms:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_phys_rms:flag_method = "bit" ; qc_phys_rms:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_phys_rms:bit_1_assessment = "Bad" ; qc_phys_rms:standard_name = "quality_flag" ; float phys_converge(time) ; phys_converge:long_name = "Convergence value for the physical retrieval" ; phys_converge:units = "1" ; phys_converge:missing_value = -9999.f ; phys_converge:comment1 = "Computed as abs[(pwv(n)-pwv(n-1)+lwp(n)-lwp(n-1)] where the index indicates the iteration number" ; phys_converge:comment2 = "Retrieval is considered to be converged if this value is less than 0.02" ; phys_converge:ancillary_variables = "qc_phys_converge" ; int qc_phys_converge(time) ; qc_phys_converge:long_name = "Quality check results on variable: Convergence value for the physical retrieval" ; qc_phys_converge:units = "1" ; qc_phys_converge:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_phys_converge:flag_method = "bit" ; qc_phys_converge:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_phys_converge:bit_1_assessment = "Bad" ; qc_phys_converge:standard_name = "quality_flag" ; int sonde_launch_status(time) ; sonde_launch_status:long_name = "Flag indicating when the sonde launches occurred" ; sonde_launch_status:units = "1" ; sonde_launch_status:source = "nsasondewnpnC1.b1:time" ; sonde_launch_status:flag_values = 0, 1 ; sonde_launch_status:flag_meanings = "no_sonde_launch sonde_launch" ; sonde_launch_status:flag_1_description = "Sonde was launched at this time" ; sonde_launch_status:flag_0_description = "Sonde did not launch at this time" ; sonde_launch_status:comment = "The variable was interpolated onto the mwr coordinate grid using a non-ADI technique." ; sonde_launch_status:cell_transform = "time: interpolation" ; float sonde_pwv(time) ; sonde_pwv:long_name = "Precipitable water vapor integrated from the radiosonde profile" ; sonde_pwv:units = "cm" ; sonde_pwv:missing_value = -9999.f ; sonde_pwv:ancillary_variables = "qc_sonde_pwv" ; int qc_sonde_pwv(time) ; qc_sonde_pwv:long_name = "Quality check results on variable: Precipitable water vapor integrated from the radiosonde profile" ; qc_sonde_pwv:units = "1" ; qc_sonde_pwv:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_sonde_pwv:flag_method = "bit" ; qc_sonde_pwv:bit_1_description = "Data has bad quality, value set to missing_value." ; qc_sonde_pwv:bit_1_assessment = "Bad" ; qc_sonde_pwv:standard_name = "quality_flag" ; float mean_pwv_mwr(time) ; mean_pwv_mwr:long_name = "Ensemble average for MWR vapor (orig_pwv) in window centered upon current sample" ; mean_pwv_mwr:units = "cm" ; mean_pwv_mwr:missing_value = -9999.f ; mean_pwv_mwr:comment = "calculated using samples over a 40 minute window centered on sample time" ; float sdev_pwv_mwr(time) ; sdev_pwv_mwr:long_name = "Standard deviation of ensemble average for MWR vapor (orig_pwv)" ; sdev_pwv_mwr:units = "cm" ; sdev_pwv_mwr:missing_value = -9999.f ; sdev_pwv_mwr:comment = "calculated using samples over a 40 minute window centered on sample time" ; int num_pwv_mwr(time) ; num_pwv_mwr:long_name = "Size of MWR ensemble for mean_pwv_mwr field" ; num_pwv_mwr:units = "1" ; float mean_lwp_mwr(time) ; mean_lwp_mwr:long_name = "Ensemble average for MWR liquid (orig_lwp) in window centered upon current sample" ; mean_lwp_mwr:units = "g/m^2" ; mean_lwp_mwr:missing_value = -9999.f ; mean_lwp_mwr:comment = "calculated using samples over a 40 minute window centered on sample time" ; float sdev_lwp_mwr(time) ; sdev_lwp_mwr:long_name = "Standard deviation of ensemble average for MWR liq (orig_lwp)" ; sdev_lwp_mwr:units = "g/m^2" ; sdev_lwp_mwr:missing_value = -9999.f ; sdev_lwp_mwr:comment = "calculated using samples over a 40 minute window centered on sample time" ; int num_lwp_mwr(time) ; num_lwp_mwr:long_name = "Size of MWR ensemble for mean_lwp_mwr field" ; num_lwp_mwr:units = "1" ; float mean_tbsky23_mwr(time) ; mean_tbsky23_mwr:long_name = "Ensemble average for MWR 23.8 GHz sky brightness temperature in window centered upon current sample" ; mean_tbsky23_mwr:units = "K" ; mean_tbsky23_mwr:missing_value = -9999.f ; mean_tbsky23_mwr:ancillary_variables = "qc_mean_tbsky23_mwr" ; int qc_mean_tbsky23_mwr(time) ; qc_mean_tbsky23_mwr:long_name = "Quality check results on variable: Ensemble average for MWR 23.8 GHz sky brightness temperature in window centered upon current sample" ; qc_mean_tbsky23_mwr:units = "1" ; qc_mean_tbsky23_mwr:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_mean_tbsky23_mwr:flag_method = "bit" ; qc_mean_tbsky23_mwr:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_mean_tbsky23_mwr:bit_1_assessment = "Bad" ; qc_mean_tbsky23_mwr:standard_name = "quality_flag" ; float sdev_tbsky23_mwr(time) ; sdev_tbsky23_mwr:long_name = "Standard deviation for ensemble average for MWR 23.8 GHz sky brightness temperature" ; sdev_tbsky23_mwr:units = "K" ; sdev_tbsky23_mwr:missing_value = -9999.f ; sdev_tbsky23_mwr:ancillary_variables = "qc_sdev_tbsky23_mwr" ; int qc_sdev_tbsky23_mwr(time) ; qc_sdev_tbsky23_mwr:long_name = "Quality check results on variable: Standard deviation for ensemble average for MWR 23.8 GHz sky brightness temperature" ; qc_sdev_tbsky23_mwr:units = "1" ; qc_sdev_tbsky23_mwr:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_sdev_tbsky23_mwr:flag_method = "bit" ; qc_sdev_tbsky23_mwr:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_sdev_tbsky23_mwr:bit_1_assessment = "Bad" ; qc_sdev_tbsky23_mwr:standard_name = "quality_flag" ; int num_tbsky23_mwr(time) ; num_tbsky23_mwr:long_name = "Size of MWR ensemble for mean_tbsky23_mwr field" ; num_tbsky23_mwr:units = "1" ; float mean_tbsky31_mwr(time) ; mean_tbsky31_mwr:long_name = "Ensemble average for MWR 31.4 GHz sky brightness temperature in window centered upon current sample" ; mean_tbsky31_mwr:units = "K" ; mean_tbsky31_mwr:missing_value = -9999.f ; mean_tbsky31_mwr:ancillary_variables = "qc_mean_tbsky31_mwr" ; int qc_mean_tbsky31_mwr(time) ; qc_mean_tbsky31_mwr:long_name = "Quality check results on variable: Ensemble average for MWR 31.4 GHz sky brightness temperature in window centered upon current sample" ; qc_mean_tbsky31_mwr:units = "1" ; qc_mean_tbsky31_mwr:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_mean_tbsky31_mwr:flag_method = "bit" ; qc_mean_tbsky31_mwr:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_mean_tbsky31_mwr:bit_1_assessment = "Bad" ; qc_mean_tbsky31_mwr:standard_name = "quality_flag" ; float sdev_tbsky31_mwr(time) ; sdev_tbsky31_mwr:long_name = "Standard deviation for ensemble average for MWR 31.4 GHz sky brightness temperature" ; sdev_tbsky31_mwr:units = "K" ; sdev_tbsky31_mwr:missing_value = -9999.f ; sdev_tbsky31_mwr:ancillary_variables = "qc_sdev_tbsky31_mwr" ; int qc_sdev_tbsky31_mwr(time) ; qc_sdev_tbsky31_mwr:long_name = "Quality check results on variable: Standard deviation for ensemble average for MWR 31.4 GHz sky brightness temperature" ; qc_sdev_tbsky31_mwr:units = "1" ; qc_sdev_tbsky31_mwr:description = "This variable contains bit-packed integer values, where each bit represents a QC test on the data. Non-zero bits indicate the QC condition given in the description for those bits; a value of 0 (no bits set) indicates the data has not failed any QC tests." ; qc_sdev_tbsky31_mwr:flag_method = "bit" ; qc_sdev_tbsky31_mwr:bit_1_description = "Data value does not represent a valid measurement or missing value, data has been set to missing_value." ; qc_sdev_tbsky31_mwr:bit_1_assessment = "Bad" ; qc_sdev_tbsky31_mwr:standard_name = "quality_flag" ; int num_tbsky31_mwr(time) ; num_tbsky31_mwr:long_name = "Size of MWR ensemble for mean_tbsky31_mwr field" ; num_tbsky31_mwr:units = "1" ; int vbias_yyyymmdd(nvbias) ; vbias_yyyymmdd:long_name = "Variable bias date" ; vbias_yyyymmdd:units = "1" ; vbias_yyyymmdd:comment = "The day that vbias_23 and vbias_31 are valid in format YYYYMMDD" ; float vbias_hour(nvbias) ; vbias_hour:long_name = "Variable bias hour" ; vbias_hour:units = "hour" ; vbias_hour:comment = "fractional hour that vbias_23 and vbias_31 are valid" ; float vbias_23(nvbias) ; vbias_23:long_name = "Variable bias offset at 23.8 GHz" ; vbias_23:units = "K" ; float vbias_31(nvbias) ; vbias_31:long_name = "Variable bias offset at 31.4 GHz" ; vbias_31:units = "K" ; 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 = "mwrret1liljclou -s nsa -f C1 -b 20220101 -e 20230101 --data-level 2 --run-samples 1 --max-runtime 0 -R" ; :Conventions = "ARM-1.3" ; :process_version = "vap-mwrret1liljclou-1.14-0.el7" ; :dod_version = "mwrret1liljclou-c2-1.3" ; :input_datastreams = "nsaarsclkazr1kolliasC1.c0 : 1.6 : 20221230.000000-20230102.000000\n", "nsaceilC1.b1 : 1.9 : 20221230.000001-20230102.000009\n", "nsametC1.b1 : 4.49 : 20221230.000000-20230102.000000\n", "nsamwrlosC1.b1 : 2.3 : 20221230.000040-20230102.000015\n", "nsasondewnpnC1.b1 : 10.14 : 20221230.053000-20230101.230400" ; :site_id = "nsa" ; :platform_id = "mwrret1liljclou" ; :facility_id = "C1" ; :data_level = "c2" ; :location_description = "North Slope of Alaska (NSA), Barrow, Alaska" ; :datastream = "nsamwrret1liljclouC1.c2" ; :sampling_interval = "20 seconds" ; :doi = "10.5439/1027369" ; :algorithm_reference_1 = "Turner, D.D., S.A. Clough, J.C. Liljegren, E.E. Clothiaux, K. Cady-Pereira, and K.L. Gaustad, 2007: Retrieving liquid water path and precipitable water vapor from Atmospheric Radiation Measurement (ARM) microwave radiometers. IEEE Trans. Geosci. Remote Sens., 45, 3680-3690, doi:10.1109/TGRS.2007.903" ; :authors = "SA Clough, K Cady-Pereira, JC Liljegren, EE Clothiaux, and DD Turner" ; :tb23_static_bias = "Static bias removed from 23.8 GHz channel before retrieval: 0.116000 K" ; :tb31_static_bias = "Static bias removed from 31.4 GHz channel before retrieval: 0.000000 K" ; :tb23_mean_variable_bias = "Variable bias removed from 31.4 GHz channel before retrieval: 0.000000 K" ; :tb31_mean_variable_bias = "Variable bias removed from 31.4 GHz channel before retrieval: 0.317086 K" ; :variable_bias31_status = "variable bias determined from physical retrieval" ; :tb23_uncertainty = "The 1-sigma uncertainty in the MWR observations at 23.8 GHz: 0.250000 K" ; :tb31_uncertainty = "The 1-sigma uncertainty in the MWR observations at 31.4 GHz: 0.250000 K" ; :vbias_clear_sky_determination_threshold_35ghz_stdev = 0.2f ; :nominal_noise_diode_temperature = "290.000000 K" ; :mean_atmos_radiating_temp_23 = "248.016000 K" ; :mean_atmos_radiating_temp_31 = "246.664000 K" ; :cosmic_background_temperature = "2.750000 K" ; :teflon_window_correction_coef_23 = 0.00164f ; :teflon_window_correction_coef_31 = 0.00217f ; :physical_retrieval_sample = "The retrieval was performed on every sample" ; :physical_retrieval_comment = "PWV and LWP are retrieved using a physical-iterative approach where the atmospheric state (structure) is specified by interpolated radiosonde profiles. The monoRTM model is the forward model used in the retrieval. The retrieval approach uses the optimal estimation methodology, and the covariance of the observations is propagated through the retrieval to provide estimates of the uncertainty in the retrieved parameters." ; :vapor_retrieval_coefficient_0 = 0.04702f ; :stat2_retrieval_comment = "PWV and LWP are retrieved using a statistical method where the retrieval coefficients utilized are predicted from surface meteorological observations. This retrieval also accounts for the temperature of the cloud liquid water. The monoRTM radiative transfer model from A.E.R., Inc., was used to generate the prediction equations and retrieval coefficients. (LiljRet6a)" ; :vapor_retrieval_coefficient_1 = 18.74f ; :vapor_retrieval_coefficient_2 = -11.56f ; :liquid_retrieval_coefficient_0 = -0.01246f ; :liquid_retrieval_coefficient_1 = -0.0509f ; :liquid_retrieval_coefficient_2 = 0.4f ; :history = "created by user gaustad on machine prod-proc5.adc.arm.gov at 2023-07-12 16:38:49, using vap-mwrret1liljclou-1.14-0.el7" ; }