| identifier_product_doi: | 10.5067/E4E140XDMPO2 |
| identifier_product_doi_authority: | http://dx.doi.org/ |
| filter_function: | oco2_xco2_quality_flag_b10 |
| bc_function: | oco2_xco2_bias_correct_b10 |
| warn_level_function: | From_L2Std |
| Bias_Correction_land: | XCO2_Bias_Corrected = (XCO2_Raw + 0.855*(dpfrac + 0.0) + 0.0335*(co2_grad_del - 5.00) + 0.335*((logDWS>(-5.0)) + 5.00) - 5.20*(aod_fine - 0.0300) - footprint_bias)/0.99590 |
| Bias_Correction_oceanGL: | XCO2_Bias_Corrected = (XCO2_Raw + 0.213*(dp_sco2 + 0.0) - 0.0870*((co2_grad_del<(0.)) + 6.00) - footprint_bias)/0.99500 |
| Bias_Correction_oceanND: | XCO2_Bias_Corrected = (XCO2_Raw + 0.213*(dp_sco2 + 0.0) - 0.0870*((co2_grad_del<(0.)) + 6.00) - footprint_bias)/0.99500 |
| Footprint_bias_land: | Assumed footprint biases in xco2 [ppm] for footprints 1-8: -0.51, -0.24, -0.20, -0.15, 0.11, 0.40, 0.20, 0.39 |
| Footprint_bias_oceanGL: | Assumed footprint biases in xco2 [ppm] for footprints 1-8: -0.37, -0.10, -0.15, -0.10, 0.04, 0.28, 0.11, 0.29 |
| Footprint_bias_oceanND: | Assumed footprint biases in xco2 [ppm] for footprints 1-8: -0.37, -0.10, -0.15, -0.10, 0.04, 0.28, 0.11, 0.29 |
| Bias_Uncertainty: | Bias correction parameter uncertainties are given in the data users guide. |
| Note_regarding_bias_correction: | There is some uncertainty in not only the bias correction coefficients but in the chosen parameters themselves. This release bias correction may be slightly different that of previous releases, and also somewhat different from those of previous ACOS algorithm versions. This has to do with details of the particular retrieval algorithm version and is considered normal (though not ideal). |
| Platform: | OCO-2 |
| Sensor: | OCO-2 |
| BuildId: | B10.2.05 |
| CollectionLabel: | Ops_B10004_r02 |
| L2FullPhysicsExeVersion: | SVN-B10.0.04_sdos_testing_1-34778 |
| title: | ACOS L2 Lite Output |
| filtering_state: | Filtered with oco2_lite_file_prefilter_b8a |
| creation_date: | Jul 2020 |
| contact: | Chris O'Dell: odell@atmos.colostate.edu |
| xco2_apriori: | Array of 32 bit Reals [sounding_id = 0..68252] units: ppm long_name: A priori XCO2 Value missing_value: -999999.0000 origname: xco2_apriori fullnamepath: /xco2_apriori |
| file_index: | Array of Bytes [sounding_id = 0..68252] units: none long_name: L2 File Index missing_value: -1 comment: 1-Based Index of L2 File for each sounding origname: file_index fullnamepath: /file_index |
| xco2_qf_simple_bitflag: | Array of Bytes [sounding_id = 0..68252] units: none long_name: xco2_quality_flag simple bitflag missing_value: -1 comment: Bits: 0=Direct Exclusion; 1=Signal-related; 2=Preprocessor-related; 3=Surface reflectivity related; 4=Cloud+Aerosol related; 5=Fit Quality related; 6=Other Retrieval variables; 7=Unused. origname: xco2_qf_simple_bitflag fullnamepath: /xco2_qf_simple_bitflag |
| pressure_levels: | Array of 32 bit Reals [sounding_id = 0..68252][levels = 0..19] units: hPa long_name: Pressure_Levels missing_value: -999999.0000 comment: Pressure at each level; Defined on layer boundaries. These are oriented space-to-surface, so the first element defines the TOA, the last element defines the surface. origname: pressure_levels fullnamepath: /pressure_levels |
| xco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: ppm long_name: XCO2 missing_value: -999999.0000 comment: Column-averaged dry-air mole fraction of CO2 (includes bias correction) origname: xco2 fullnamepath: /xco2 |
| time: | Array of 64 bit Reals [sounding_id = 0..68252] units: seconds since 1970-01-01 00:00:00 long_name: time missing_value: -999999.00000000000 origname: time fullnamepath: /time |
| pressure_weight: | Array of 32 bit Reals [sounding_id = 0..68252][levels = 0..19] units: none long_name: Pressure Weighting Function missing_value: -999999.0000 comment: Pressure weighting function for each level; Defined on layer boundaries. These are oriented space-to-surface, so the first element defines the TOA, the last element defines the surface. origname: pressure_weight fullnamepath: /pressure_weight |
| Preprocessors_co2_ratio: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: CO2 Ratio missing_value: -999999.0000 comment: Bias- and Footprint-corrected Band 3 / Band 2 Ratio of retrieved Single-band XCO2 using IMAP-DOAS algorithm origname: co2_ratio fullnamepath: /Preprocessors/co2_ratio |
| Preprocessors_max_declocking_sco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: max_declocking_sco2 missing_value: -999999.0000 comment: ABS(MaxDeclockingFactor_StrongCO2_Band - 1)*100 origname: max_declocking_sco2 fullnamepath: /Preprocessors/max_declocking_sco2 |
| Preprocessors_max_declocking_o2a: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: max_declocking_o2a missing_value: -999999.0000 comment: ABS(MaxDeclockingFactor_O2A_Band - 1)*100 origname: max_declocking_o2a fullnamepath: /Preprocessors/max_declocking_o2a |
| Preprocessors_xco2_strong_idp: | Array of 32 bit Reals [sounding_id = 0..68252] units: ppm long_name: xco2_strong missing_value: -999999.0000 comment: XCO2 from Strong CO2 Band only, IMAP-DOAS algorithm origname: xco2_strong_idp fullnamepath: /Preprocessors/xco2_strong_idp |
| Preprocessors_max_declocking_wco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: max_declocking_wco2 missing_value: -999999.0000 comment: ABS(MaxDeclockingFactor_WeakCO2_Band - 1)*100 origname: max_declocking_wco2 fullnamepath: /Preprocessors/max_declocking_wco2 |
| Preprocessors_dp_abp: | Array of 32 bit Reals [sounding_id = 0..68252] units: hPa long_name: delta_surface_pressure_abp missing_value: -999999.0000 comment: Retrieved-Prior Pressure from the fast O2A-band only preprocessor retrieval origname: dp_abp fullnamepath: /Preprocessors/dp_abp |
| Preprocessors_co2_ratio_offset_per_footprint: | Array of 32 bit Reals [footprints = 0..7] units: dimensionless long_name: co2_ratio_offset_per_footprint missing_value: -999999.0000 comment: Per footprint offset subtracted from co2_ratio in the L2Std files to form co2_ratio in the lite files origname: co2_ratio_offset_per_footprint fullnamepath: /Preprocessors/co2_ratio_offset_per_footprint |
| Preprocessors_h2o_ratio: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: H2O Ratio missing_value: -999999.0000 comment: Footprint-corrected Band 3 / Band 2 Ratio of retrieved Single-band XH2O using IMAP-DOAS algorithm origname: h2o_ratio fullnamepath: /Preprocessors/h2o_ratio |
| Preprocessors_xco2_weak_idp: | Array of 32 bit Reals [sounding_id = 0..68252] units: ppm long_name: xco2_weak missing_value: -999999.0000 comment: XCO2 from Weak CO2 Band only, IMAP-DOAS algorithm origname: xco2_weak_idp fullnamepath: /Preprocessors/xco2_weak_idp |
| Preprocessors_h2o_ratio_offset_per_footprint: | Array of 32 bit Reals [footprints = 0..7] units: dimensionless long_name: h2o_ratio_offset_per_footprint missing_value: -999999.0000 comment: Per footprint offset subtracted from h2o_ratio in the L2Std files to form co2_ratio in the lite files origname: h2o_ratio_offset_per_footprint fullnamepath: /Preprocessors/h2o_ratio_offset_per_footprint |
| solar_zenith_angle: | Array of 32 bit Reals [sounding_id = 0..68252] units: degrees long_name: sounding_solar_zenith missing_value: -999999.0000 comment: solar zenith angle at the time of the measurement origname: solar_zenith_angle fullnamepath: /solar_zenith_angle |
| longitude: | Array of 32 bit Reals [sounding_id = 0..68252] units: degrees_east long_name: longitude missing_value: -999999.0000 comment: center longitude of the measurement origname: longitude fullnamepath: /longitude |
| xco2_qf_bitflag: | Array of 32 bit Integers [sounding_id = 0..68252] units: none long_name: xco2_quality_flag bitflag missing_value: -9999 comment: xco2_quality_flag bit flag qf_variables: co2_ratio, h2o_ratio, altitude_stddev, max_declocking_wco2, dp_o2a, dpfrac, co2_grad_del, albedo_slope_wco2, albedo_slope_sco2, aod_total, aod_ice, albedo_sco2, albedo_quad_wco2, albedo_quad_sco2, rms_rel_wco2, rms_rel_sco2, deltaT, aod_fine, aod_water, dust_height, aod_strataer, aod_seasalt, fs_rel, dws, dp_abp, snow_flag, dp_sco2, chi2_wco2, max_declocking_sco2, snr_wco2, windspeed, water_height origname: xco2_qf_bitflag fullnamepath: /xco2_qf_bitflag |
| latitude: | Array of 32 bit Reals [sounding_id = 0..68252] units: degrees_north long_name: latitude missing_value: -999999.0000 comment: center latitude of the measurement origname: latitude fullnamepath: /latitude |
| sensor_zenith_angle: | Array of 32 bit Reals [sounding_id = 0..68252] units: degrees long_name: sounding_zenith missing_value: -999999.0000 comment: zenith angle of the satellite at the time of the measurement origname: sensor_zenith_angle fullnamepath: /sensor_zenith_angle |
| Meteorology_psurf_apriori_o2a: | Array of 32 bit Reals [sounding_id = 0..68252] units: hPa long_name: Band 1 Prior Surface Pressure missing_value: -999999.0000 comment: Prior surface pressure for Band 1 location, as determined by GEOS5-FP-IT short-term (0-9 hour) forecast origname: psurf_apriori_o2a fullnamepath: /Meteorology/psurf_apriori_o2a |
| Meteorology_psurf_apriori_wco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: hPa long_name: Band 2 Prior Surface Pressure missing_value: -999999.0000 comment: Prior surface pressure for Band 2 location, as determined by GEOS5-FP-IT short-term (0-9 hour) forecast origname: psurf_apriori_wco2 fullnamepath: /Meteorology/psurf_apriori_wco2 |
| Meteorology_psurf_apriori_sco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: hPa long_name: Band 3 Prior Surface Pressure missing_value: -999999.0000 comment: Prior surface pressure for Band 3 location, as determined by GEOS5-FP-IT short-term (0-9 hour) forecast origname: psurf_apriori_sco2 fullnamepath: /Meteorology/psurf_apriori_sco2 |
| Meteorology_windspeed_u_met: | Array of 32 bit Reals [sounding_id = 0..68252] units: m/s long_name: Prior Meteorology Surface Wind Speed, U Component missing_value: -999999.0000 origname: windspeed_u_met fullnamepath: /Meteorology/windspeed_u_met |
| Meteorology_windspeed_v_met: | Array of 32 bit Reals [sounding_id = 0..68252] units: m/s long_name: Prior Meteorology Surface Wind Speed, V Component missing_value: -999999.0000 origname: windspeed_v_met fullnamepath: /Meteorology/windspeed_v_met |
| xco2_quality_flag: | Array of 16 bit Integers [sounding_id = 0..68252] units: none long_name: XCO2_Quality_Flag missing_value: 127 comment: 0=Good, 1=Bad origname: xco2_quality_flag fullnamepath: /xco2_quality_flag |
| xco2_averaging_kernel: | Array of 32 bit Reals [sounding_id = 0..68252][levels = 0..19] units: none long_name: XCO2 Column Averaging Kernel missing_value: -999999.0000 comment: Normalized XCO2 averaging kernel; Defined on layer boundaries. These are oriented space-to-surface, so the first element defines the TOA, the last element defines the surface. origname: xco2_averaging_kernel fullnamepath: /xco2_averaging_kernel |
| date: | Array of 16 bit Integers [sounding_id = 0..68252][epoch_dimension = 0..6] units: none long_name: Observation date and time matching sounding_id missing_value: -9999 comment: Year, month (1-12), day (1-31), hour (0-23), minute (0-59), second (0-59), millisecond (0,300,or 700). Note this time is chosen to correspond exactly to the first 15 digits of sounding_id origname: date fullnamepath: /date |
| Retrieval_dp_o2a: | Array of 32 bit Reals [sounding_id = 0..68252] units: hPa long_name: Delta Psurf from L2, O2A-band Prior missing_value: -999999.0000 comment: Retrieved Psurf from the L2 Full-Physics retrieval, minus the O2A-band prior Psurf origname: dp_o2a fullnamepath: /Retrieval/dp_o2a |
| Retrieval_dust_height: | Array of 32 bit Reals [sounding_id = 0..68252] units: P/Psurf long_name: Dust Aerosol Height missing_value: -999999.0000 comment: Retrieved Dust Aerosol Vertical Height origname: dust_height fullnamepath: /Retrieval/dust_height |
| Retrieval_aod_water: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Water Cloud Optical Depth missing_value: -999999.0000 comment: Retrieved Water Cloud Optical Depth at 0.755 microns origname: aod_water fullnamepath: /Retrieval/aod_water |
| Retrieval_s32: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: Signal_band3/Signal_band2 missing_value: -999999.0000 comment: Ratio of Band 3 to Band 2 signal level origname: s32 fullnamepath: /Retrieval/s32 |
| Retrieval_chi2_sco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Band 3 Reduced Chi-Squared of L2 Fit missing_value: -999999.0000 comment: Reduced Chi-Squared for Band 3 (Strong CO2 band) of L2 spectral fit origname: chi2_sco2 fullnamepath: /Retrieval/chi2_sco2 |
| Retrieval_aod_dust: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Dust Aerosol Optical Depth missing_value: -999999.0000 comment: Retrieved Dust Aerosol Optical Depth at 0.755 microns origname: aod_dust fullnamepath: /Retrieval/aod_dust |
| Retrieval_albedo_slope_wco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: per wn long_name: Retrieved Band 2 reflectance slope (land), or slope of lambertian albedo component of BRDF (ocean) missing_value: -999999.0000 origname: albedo_slope_wco2 fullnamepath: /Retrieval/albedo_slope_wco2 |
| Retrieval_aod_bc: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Black Carbon Optical Depth missing_value: -999999.0000 comment: Retrieved Black Carbon Optical Depth at 0.755 microns origname: aod_bc fullnamepath: /Retrieval/aod_bc |
| Retrieval_aod_strataer: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Stratospheric Aerosol Optical Depth missing_value: -999999.0000 comment: Retrieved Upper Trop+Stratospheric Aerosol Optical Depth at 0.755 microns origname: aod_strataer fullnamepath: /Retrieval/aod_strataer |
| Retrieval_aod_seasalt: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Sea Salt Optical Depth missing_value: -999999.0000 comment: Retrieved Sea Salt Carbon Optical Depth at 0.755 microns origname: aod_seasalt fullnamepath: /Retrieval/aod_seasalt |
| Retrieval_rms_rel_o2a: | Array of 32 bit Reals [sounding_id = 0..68252] units: percent long_name: relative_rms_o2a_band missing_value: -999999.0000 comment: RMS of the L2 fit residuals in the o2a band, relative to the continuum signal, times 100 [so it is in percent] origname: rms_rel_o2a fullnamepath: /Retrieval/rms_rel_o2a |
| Retrieval_windspeed_apriori: | Array of 32 bit Reals [sounding_id = 0..68252] units: m/s long_name: Prior Surface Wind Speed missing_value: -999999.0000 comment: Surface wind speed retrieved by the Level-2 retrieval origname: windspeed_apriori fullnamepath: /Retrieval/windspeed_apriori |
| Retrieval_albedo_slope_sco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: per wn long_name: Retrieved Band 3 reflectance slope (land), or slope of lambertian albedo component of BRDF (ocean) missing_value: -999999.0000 origname: albedo_slope_sco2 fullnamepath: /Retrieval/albedo_slope_sco2 |
| Retrieval_tcwv_apriori: | Array of 32 bit Reals [sounding_id = 0..68252] units: kg/m^2 long_name: Total Column Water Vapor A Priori missing_value: -999999.0000 comment: Prior TCWV (from GEOS5-FP-IT prior profile) origname: tcwv_apriori fullnamepath: /Retrieval/tcwv_apriori |
| Retrieval_co2_grad_del: | Array of 32 bit Reals [sounding_id = 0..68252] units: ppm long_name: Change in CO2 vertical gradient (surface minus level 13), retrieved-apriori missing_value: -999999.0000 comment: level 13 is at P/Psurf=0.631579 origname: co2_grad_del fullnamepath: /Retrieval/co2_grad_del |
| Retrieval_fs: | Array of 32 bit Reals [sounding_id = 0..68252] units: W/m^2/um/sr long_name: Retrieved Fluorescence at 757 nm missing_value: -999999.0000 comment: Simultaneous Fluorescence retrieval (at 757 nm) by L2 code; note this is different than the dedicated retrieval using only solar lines origname: fs fullnamepath: /Retrieval/fs |
| Retrieval_psurf_apriori: | Array of 32 bit Reals [sounding_id = 0..68252] units: hPa long_name: Prior Surface Pressure missing_value: -999999.0000 comment: Prior surface pressure used in the retrieval, as determined by GEOS5-FP-IT short-term (0-9 hour) forecast origname: psurf_apriori fullnamepath: /Retrieval/psurf_apriori |
| Retrieval_SigmaB: | Array of 32 bit Reals [levels = 0..19] units: dimensionless long_name: SigmaB_Coefficient missing_value: -999999.0000 comment: Multiply Psurf by these values to get the pressure layer boundaries (= pressure levels) origname: SigmaB fullnamepath: /Retrieval/SigmaB |
| Retrieval_fs_rel: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Retrieved L2 Fluorescence relative to Band 1 signal missing_value: -999999.0000 comment: Retrieval Fluorescence relative to Band 1 signal origname: fs_rel fullnamepath: /Retrieval/fs_rel |
| Retrieval_albedo_wco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: Band 2 Albedo missing_value: -999999.0000 comment: Retrieved Band 2 reflectance (land), or lambertian albedo component of BRDF (ocean) origname: albedo_wco2 fullnamepath: /Retrieval/albedo_wco2 |
| Retrieval_tcwv: | Array of 32 bit Reals [sounding_id = 0..68252] units: kg/m^2 long_name: Total Column Water Vapor missing_value: -999999.0000 comment: Retrieved TCWV obtained by multiplying retrieved h2o_scale factor to prior TCWV origname: tcwv fullnamepath: /Retrieval/tcwv |
| Retrieval_tcwv_uncertainty: | Array of 32 bit Reals [sounding_id = 0..68252] units: kg/m^2 long_name: Total Column Water Vapor Uncertainty missing_value: -999999.0000 comment: Retrieved TCWV Posterior Uncertainty origname: tcwv_uncertainty fullnamepath: /Retrieval/tcwv_uncertainty |
| Retrieval_albedo_quad_wco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: per wn^2 long_name: Retrieved Band 2 reflectance quadratic component (land), n/a (ocean) missing_value: -999999.0000 origname: albedo_quad_wco2 fullnamepath: /Retrieval/albedo_quad_wco2 |
| Retrieval_albedo_quad_o2a: | Array of 32 bit Reals [sounding_id = 0..68252] units: per wn^2 long_name: Retrieved Band 1 reflectance quadratic component (land), n/a (ocean) missing_value: -999999.0000 origname: albedo_quad_o2a fullnamepath: /Retrieval/albedo_quad_o2a |
| Retrieval_albedo_o2a: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: Band 1 Albedo missing_value: -999999.0000 comment: Retrieved Band 1 reflectance (land), or lambertian albedo component of BRDF (ocean) origname: albedo_o2a fullnamepath: /Retrieval/albedo_o2a |
| Retrieval_deltaT: | Array of 32 bit Reals [sounding_id = 0..68252] units: Kelvin long_name: Retrieved Offset to Prior Temperature Profile in Kelvin missing_value: -999999.0000 origname: deltaT fullnamepath: /Retrieval/deltaT |
| Retrieval_snow_flag: | Array of 16 bit Integers [sounding_id = 0..68252] units: none long_name: Inferred Snow Flag missing_value: 127 comment: 0=not snow, 1=snow origname: snow_flag fullnamepath: /Retrieval/snow_flag |
| Retrieval_h2o_scale: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Retrieved scale factor to Prior Water Vapor Profile missing_value: -999999.0000 origname: h2o_scale fullnamepath: /Retrieval/h2o_scale |
| Retrieval_dp_sco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: hPa long_name: Delta Psurf from L2, SCO2-band Prior missing_value: -999999.0000 comment: Retrieved Psurf from the L2 Full-Physics retrieval, minus the SCO2-band prior Psurf origname: dp_sco2 fullnamepath: /Retrieval/dp_sco2 |
| Retrieval_dp: | Array of 32 bit Reals [sounding_id = 0..68252] units: hPa long_name: Delta Psurf from L2, Default Prior missing_value: -999999.0000 comment: Retrieved Psurf from the L2 Full-Physics retrieval, minus the O2A-band prior Psurf origname: dp fullnamepath: /Retrieval/dp |
| Retrieval_windspeed: | Array of 32 bit Reals [sounding_id = 0..68252] units: m/s long_name: Retrieved Surface Wind Speed missing_value: -999999.0000 comment: Surface wind speed retrieved by the Level-2 retrieval origname: windspeed fullnamepath: /Retrieval/windspeed |
| Retrieval_albedo_quad_sco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: per wn^2 long_name: Retrieved Band 3 reflectance quadratic component (land), n/a (ocean) missing_value: -999999.0000 origname: albedo_quad_sco2 fullnamepath: /Retrieval/albedo_quad_sco2 |
| Retrieval_dpfrac: | Array of 32 bit Reals [sounding_id = 0..68252] units: ppm long_name: dpfrac missing_value: -999999.0000 comment: xco2_raw*(1-{Meteorology/psurf_apriori_band3}/{Retrieval/psurf} origname: dpfrac fullnamepath: /Retrieval/dpfrac |
| Retrieval_t700: | Array of 32 bit Reals [sounding_id = 0..68252] units: K long_name: Temperature_at_700hPa missing_value: -999999.0000 comment: Temperature at 700 hPa (from GEOS5-FP-IT) origname: t700 fullnamepath: /Retrieval/t700 |
| Retrieval_chi2_o2a: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Band 1 Reduced Chi-Squared of L2 Fit missing_value: -999999.0000 comment: Reduced Chi-Squared for Band 1 (O2A band) of L2 spectral fit origname: chi2_o2a fullnamepath: /Retrieval/chi2_o2a |
| Retrieval_aod_ice: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Ice Cloud Optical Depth missing_value: -999999.0000 comment: Retrieved Ice Cloud Optical Depth at 0.755 microns origname: aod_ice fullnamepath: /Retrieval/aod_ice |
| Retrieval_iterations: | Array of 16 bit Integers [sounding_id = 0..68252] units: none long_name: Iterations missing_value: 127 comment: No. of iterations used in retrieval origname: iterations fullnamepath: /Retrieval/iterations |
| Retrieval_water_height: | Array of 32 bit Reals [sounding_id = 0..68252] units: P/Psurf long_name: Water Cloud Height missing_value: -999999.0000 comment: Retrieved Water Cloud Vertical Height origname: water_height fullnamepath: /Retrieval/water_height |
| Retrieval_ice_height: | Array of 32 bit Reals [sounding_id = 0..68252] units: P/Psurf long_name: Ice Cloud Height missing_value: -999999.0000 comment: Retrieved Ice Cloud Vertical Height origname: ice_height fullnamepath: /Retrieval/ice_height |
| Retrieval_rms_rel_wco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: percent long_name: relative_rms_weak_co2_band missing_value: -999999.0000 comment: RMS of the L2 fit residuals in the weak co2 band, relative to the continuum signal, times 100 [so it is in percent] origname: rms_rel_wco2 fullnamepath: /Retrieval/rms_rel_wco2 |
| Retrieval_aod_sulfate: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Sulfate Aerosol Optical Depth missing_value: -999999.0000 comment: Retrieved Sulfate Aerosol Optical Depth at 0.755 microns origname: aod_sulfate fullnamepath: /Retrieval/aod_sulfate |
| Retrieval_dws: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Dust+Water+SeaSalt missing_value: -999999.0000 comment: Retrieved AOD_dust+AOD_water+AOD_seasalt at 0.755 microns origname: dws fullnamepath: /Retrieval/dws |
| Retrieval_albedo_slope_o2a: | Array of 32 bit Reals [sounding_id = 0..68252] units: per wn long_name: Retrieved Band 1 reflectance slope (land), or slope of lambertian albedo component of BRDF (ocean) missing_value: -999999.0000 origname: albedo_slope_o2a fullnamepath: /Retrieval/albedo_slope_o2a |
| Retrieval_rms_rel_sco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: percent long_name: relative_rms_strong_co2_band missing_value: -999999.0000 comment: RMS of the L2 fit residuals in the strong co2 band, relative to the continuum signal, times 100 [so it is in percent] origname: rms_rel_sco2 fullnamepath: /Retrieval/rms_rel_sco2 |
| Retrieval_eof3_3_rel: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: 3rd EOF of Band 3, relative to Signal missing_value: -999999.0000 comment: A scaled version of the EOF 3, Band 3 amplitude origname: eof3_3_rel fullnamepath: /Retrieval/eof3_3_rel |
| Retrieval_diverging_steps: | Array of 16 bit Integers [sounding_id = 0..68252] units: none long_name: diverging_steps missing_value: 127 comment: No. of diverging steps taken in retrieval origname: diverging_steps fullnamepath: /Retrieval/diverging_steps |
| Retrieval_albedo_sco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: Band 3 Albedo missing_value: -999999.0000 comment: Retrieved Band 3 reflectance (land), or lambertian albedo component of BRDF (ocean) origname: albedo_sco2 fullnamepath: /Retrieval/albedo_sco2 |
| Retrieval_chi2_wco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Band 2 Reduced Chi-Squared of L2 Fit missing_value: -999999.0000 comment: Reduced Chi-Squared for Band 2 (Weak CO2 band) of L2 spectral fit origname: chi2_wco2 fullnamepath: /Retrieval/chi2_wco2 |
| Retrieval_surface_type: | Array of 16 bit Integers [sounding_id = 0..68252] units: 0=ocean;1=land long_name: Surface Type missing_value: 127 comment: Surface type used in the retrieval: 0=ocean and corresponds to a Coxmunk+Lambertian surface; 1=land and corresponds to a pure Lambertian surface origname: surface_type fullnamepath: /Retrieval/surface_type |
| Retrieval_s31: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: Signal_band3/Signal_band1 missing_value: -999999.0000 comment: Ratio of Band 3 to Band 1 signal level origname: s31 fullnamepath: /Retrieval/s31 |
| Retrieval_psurf: | Array of 32 bit Reals [sounding_id = 0..68252] units: hPa long_name: Retrieved Surface Pressure missing_value: -999999.0000 comment: Surface pressure retrieved by the Level-2 retrieval origname: psurf fullnamepath: /Retrieval/psurf |
| Retrieval_aod_total: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Total Cloud+Aerosol Optical Depth missing_value: -999999.0000 comment: Retrieved Total Cloud+Aerosol Optical Depth at 0.755 microns origname: aod_total fullnamepath: /Retrieval/aod_total |
| Retrieval_aod_oc: | Array of 32 bit Reals [sounding_id = 0..68252] units: dimensionless long_name: Organic Carbon Optical Depth missing_value: -999999.0000 comment: Retrieved Organic Carbon Optical Depth at 0.755 microns origname: aod_oc fullnamepath: /Retrieval/aod_oc |
| Retrieval_xco2_raw: | Array of 32 bit Reals [sounding_id = 0..68252] units: ppm long_name: Raw value of Retrieved XCO2 missing_value: -999999.0000 origname: xco2_raw fullnamepath: /Retrieval/xco2_raw |
| Sounding_snr_sco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: snr_strong_CO2_L1b missing_value: -999999.0000 comment: Strong CO2-Band Continuum Signal-to-Noise Ratio origname: snr_sco2 fullnamepath: /Sounding/snr_sco2 |
| Sounding_operation_mode: | Array of 16 bit Integers [sounding_id = 0..68252] units: none long_name: OCO-2 Operation Mode: 0=Nadir, 1=Glint, 2=Target, 3=Transition missing_value: 127 origname: operation_mode fullnamepath: /Sounding/operation_mode |
| Sounding_snr_wco2: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: snr_weak_CO2_L1b missing_value: -999999.0000 comment: Weak CO2-Band Continuum Signal-to-Noise Ratio origname: snr_wco2 fullnamepath: /Sounding/snr_wco2 |
| Sounding_glint_angle: | Array of 32 bit Reals [sounding_id = 0..68252] units: degrees long_name: sounding_glint_angle missing_value: -999999.0000 comment: Angular distance from viewing along the perfect glint direction origname: glint_angle fullnamepath: /Sounding/glint_angle |
| Sounding_altitude_stddev: | Array of 32 bit Reals [sounding_id = 0..68252] units: meters long_name: Altitude Stddev missing_value: -999999.0000 comment: Standard deviation of surface elevation within the FOV origname: altitude_stddev fullnamepath: /Sounding/altitude_stddev |
| Sounding_sensor_azimuth_angle: | Array of 32 bit Reals [sounding_id = 0..68252] units: degrees East of North long_name: sounding_azimuth missing_value: -999999.0000 comment: azimuth angle of the satellite at the time of the measurement origname: sensor_azimuth_angle fullnamepath: /Sounding/sensor_azimuth_angle |
| Sounding_airmass: | Array of 32 bit Reals [sounding_id = 0..68252] units: degrees long_name: relative_airmass missing_value: -999999.0000 comment: Airmass, computed as 1/cos(solar_zenith_angle) + 1/cos(sensor_zenith_angle) origname: airmass fullnamepath: /Sounding/airmass |
| Sounding_land_water_indicator: | Array of 16 bit Integers [sounding_id = 0..68252] units: none long_name: Land Water Indicator missing_value: 127 comment: 0=Land;1=Ocean;2=Inland Water;3=Mixed origname: land_water_indicator fullnamepath: /Sounding/land_water_indicator |
| Sounding_polarization_angle: | Array of 32 bit Reals [sounding_id = 0..68252] units: degrees long_name: sounding_polarization_angle missing_value: -999999.0000 origname: polarization_angle fullnamepath: /Sounding/polarization_angle |
| Sounding_snr_o2a: | Array of 32 bit Reals [sounding_id = 0..68252] units: none long_name: snr_O2_L1b missing_value: -999999.0000 comment: O2A-Band Continuum Signal-to-Noise Ratio origname: snr_o2a fullnamepath: /Sounding/snr_o2a |
| Sounding_solar_azimuth_angle: | Array of 32 bit Reals [sounding_id = 0..68252] units: degrees East of North long_name: sounding_solar_azimuth missing_value: -999999.0000 comment: solar azimuth angle at the time of the measurement origname: solar_azimuth_angle fullnamepath: /Sounding/solar_azimuth_angle |
| Sounding_path: | Array of Bytes [sounding_id = 0..68252] units: none long_name: OCO-2 orbit path number missing_value: -1 comment: OCO-2 fixed orbit path number ranging from 1-233 origname: path fullnamepath: /Sounding/path |
| Sounding_altitude: | Array of 32 bit Reals [sounding_id = 0..68252] units: meters long_name: Altitude missing_value: -999999.0000 comment: Surface Altitude in meters above sea level origname: altitude fullnamepath: /Sounding/altitude |
| Sounding_l1b_type: | Array of 32 bit Integers [sounding_id = 0..68252] units: none long_name: JPL Processing Version missing_value: -9999 origname: l1b_type fullnamepath: /Sounding/l1b_type |
| Sounding_footprint: | Array of 16 bit Integers [sounding_id = 0..68252] units: none long_name: Footprint Number missing_value: 127 comment: Index of OCO-2 Sounding 1-8 origname: footprint fullnamepath: /Sounding/footprint |
| Sounding_land_fraction: | Array of 16 bit Integers [sounding_id = 0..68252] units: percent long_name: Land Fraction missing_value: 127 comment: Fraction of the footprint that contains land in percent origname: land_fraction fullnamepath: /Sounding/land_fraction |
| Sounding_orbit: | Array of 32 bit Integers [sounding_id = 0..68252] units: none long_name: orbit number missing_value: -9999 comment: OCO-2 orbit number since mission start origname: orbit fullnamepath: /Sounding/orbit |
| xco2_uncertainty: | Array of 32 bit Reals [sounding_id = 0..68252] units: ppm long_name: XCO2_Posterior_Error missing_value: -999999.0000 origname: xco2_uncertainty fullnamepath: /xco2_uncertainty |
| co2_profile_apriori: | Array of 32 bit Reals [sounding_id = 0..68252][levels = 0..19] units: ppm long_name: CO2 Apriori Profile missing_value: -999999.0000 comment: Prior CO2 Prior assumed by L2 code; Defined on layer boundaries. These are oriented space-to-surface, so the first element defines the TOA, the last element defines the surface. origname: co2_profile_apriori fullnamepath: /co2_profile_apriori |
| vertices: | Array of 16 bit Integers [vertices = 0..3] origname: vertices fullnamepath: /vertices |
| bands: | Array of 16 bit Integers [bands = 0..2] origname: bands fullnamepath: /bands |
| epoch_dimension: | Array of 32 bit Reals [epoch_dimension = 0..6] |
| footprints: | Array of 16 bit Integers [footprints = 0..7] origname: footprints fullnamepath: /footprints |
| levels: | Array of 16 bit Integers [levels = 0..19] origname: levels fullnamepath: /levels |
| source_files: | Array of Strings [source_files = 0..13] units: none long_name: L2 Source File missing_value: Missing comment: Source L2 File Names for these soundings origname: source_files fullnamepath: /source_files |
| vertex_latitude: | Array of 32 bit Reals [sounding_id = 0..68252][vertices = 0..3] units: degrees_north long_name: vertex_latitude missing_value: -999999.0000 comment: corner latitudes of the measurement FOV origname: vertex_latitude fullnamepath: /vertex_latitude |
| vertex_longitude: | Array of 32 bit Reals [sounding_id = 0..68252][vertices = 0..3] units: degrees_east long_name: vertex_longitude missing_value: -999999.0000 comment: corner longitudes of the measurement FOV origname: vertex_longitude fullnamepath: /vertex_longitude |