| keywords: | EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > NITROGEN COMPOUNDS > AMMONIA |
| Conventions: | CF-1.6, ACDD-1.3 |
| source: | CrIS instrument telemetry |
| processing_level: | 2 |
| comment: | |
| acknowledgment: | Support for this research was provided by NASA. |
| standard_name_vocabulary: | CF Standard Name Table v28 |
| project: | Sounder SIPS |
| product_name_project: | SNDR |
| geospatial_bounds_crs: | EPSG:4326 |
| time_coverage_duration: | P0000-00-00T00:06:00 |
| product_name_duration: | m06 |
| creator_type: | institution |
| keywords_vocabulary: | GCMD:GCMD Keywords |
| platform: | SUOMI-NPP > Suomi National Polar-orbiting Partnership |
| platform_vocabulary: | GCMD:GCMD Keywords |
| product_name_platform: | SNPP |
| instrument: | CrIS > Cross-track Infrared Sounder |
| instrument_vocabulary: | GCMD:GCMD Keywords |
| product_name_instr: | CRIS |
| product_name_extension: | nc |
| featureType: | point |
| data_structure: | swath |
| cdm_data_type: | Swath |
| format_version: | v02.00.36 |
| title: | Level-2 ESSPA-NH3 SNPP CrIS |
| summary: | The Level-2 ESSPA-NH3 product includes ammonia retrieval products from the ESSPA-NH3 algorithm for one six-minute interval. |
| shortname: | SNDRSNIL2ESPNH3 |
| product_group: | l2_esspa_nh3 |
| references: | Shephard, M. W. and K.E. Cady-Pereira: Cross-track Infrared Sounder (CrIS) satellite observations of tropospheric ammonia, Atmos. Meas. Tech., 8, 1323-1336, doi:10.5194/amt-8-1323-2015, 2015. |
| contributor_name: | Karen Cady-Pereira; Mark Shephard; Alan Lipton; Jean-Luc Moncet; Igor Polonski |
| contributor_role: | NH3 Retrieval PI; Retrieval developer; Retrieval PI; Retrieval PI; Forward Model |
| history: | 2017-05-15,15:21:39,mtheobal,ccast_main ../Snpp_Cris_L1b/1.8.0/pge/uw_v1.0rc8_deploy/l1b/inst_data/isa_snpp_773p1307.mat ../Snpp_Cris_L1b/1.8.0/pge/uw_v1.0rc8_deploy/l1b/inst_data/FIRfilter.mat ../Snpp_Cris_L1b/1.8.0/pge/uw_v1.0rc8_deploy/l1b/inst_data/nedn_filt_LR.mat /vol2/snppPro/OPS/s4pm/snpp/stations/V1_RE/run_algorithm/RUNNING.RUN_Snpp_Cris_L1b.2013120025400/l1b_template.nc snpp_nsr_A4 /vol2/snppPro/OPS/s4pm/snpp/stations/V1_RE/run_algorithm/RUNNING.RUN_Snpp_Cris_L1b.2013120025400 ./SNDR.SNPP.CRIS.20130430T0254.m06.g030.L1A.std.v01_10.G.170515093402.nc ./SNDR.SNPP.CRIS.20130430T0248.m06.g029.L1A.std.v01_10.G.170515093402.nc ./SNDR.SNPP.CRIS.20130430T0300.m06.g031.L1A.std.v01_10.G.170515093402.nc; Created on 2020-01-27T13:08:48.000Z by L2 ESSPA_NH3 PGE JPL/Caltech Sounder SIPS Operations, v01_37_02 |
| license: | Limited to Sounder SIPS affiliate |
| date_created: | 2020-01-27T13:08:48.000Z |
| creator_name: | JPL/Caltech Sounder SIPS Operations |
| creator_email: | sounder.sips@jpl.nasa.gov |
| creator_url: | http://www.jpl.nasa.gov/ |
| institution: | Jet Propulsion Laboratory - California Institute of Technology |
| publisher_name: | Sounder SIPS: JPL/Caltech |
| publisher_email: | sounder.sips@jpl.nasa.gov |
| publisher_url: | Unassigned |
| geospatial_bounds: | POLYGON ((-86.17 -4.76, -71.12 -102.39, -64.44 -157.95, -72.90 150.97, -86.17 -4.76)) |
| geospatial_lat_min: | -89.8036270 |
| geospatial_lat_max: | -64.2836609 |
| geospatial_lon_min: | 103.540993 |
| geospatial_lon_max: | 92.5360413 |
| time_coverage_start: | 2013-04-30T02:54:00Z |
| time_of_first_valid_obs: | 2013-04-30T02:54:02.167110Z |
| time_coverage_mid: | 2013-04-30T02:57:00Z |
| time_coverage_end: | 2013-04-30T03:00:00Z |
| time_of_last_valid_obs: | 2013-04-30T03:00:02.167110Z |
| creator_institution: | Jet Propulsion Laboratory - California Institute of Technology |
| product_version: | v01_37_02 |
| product_name: | SNDR.SNPP.CRIS.20130430T0254.m06.g030.L2_ESSPA_NH3_RET_NSR.std.v01_37_02.J.200127130848.nc |
| product_name_variant: | std |
| product_name_version: | v01_37_02 |
| product_name_producer: | J |
| product_name_timestamp: | 200127130848 |
| granule_number: | 30 |
| product_name_granule_number: | g030 |
| gran_id: | 20130430T0254 |
| geospatial_lat_mid: | -78.8558884 |
| geospatial_lon_mid: | -152.221542 |
| id: | 10.5067/EHW76N16L83M |
| naming_authority: | http://dx.doi.org |
| identifier_product_doi: | 10.5067/EHW76N16L83M |
| identifier_product_doi_authority: | http://dx.doi.org |
| algorithm_version: | ESSPA_NH3 v17; OSS v1.2 |
| production_host: | humid |
| input_file_names: | SNDR.SNPP.CRIS.20130430T0254.m06.g030.L1B_NSR.std.v01_08.G.170515152142.nc; SNDR.SNPP.CRIMSS.20130430T0254.m06.g030.L2_CLIMCAPS_RET_NSR.std.v01_33_00.J.190411060358.nc; SNDR.SNPP.ESSPA_NH3.sfif.20200113000000.xml; snpp_l2_esspa_nh3_20190822000000.nc |
| input_file_types: | CRIS_L1B; CRIMSS_L2; L12_SFIF; L2_Template |
| input_file_dates: | 2013-04-30; 2013-04-30; N/A; N/A; |
| orbitDirection: | SouthPole |
| day_night_flag: | Night |
| qa_pct_data_missing: | 0.00000000 |
| qa_pct_data_geo: | 100.000000 |
| qa_pct_data_sci_mode: | 100.000000 |
| qa_no_data: | FALSE |
| metadata_link: | http://disc.sci.gsfc.nasa.gov/ |
| product_name_type_id: | L2_ESSPA_NH3_RET_NSR |
| AutomaticQualityFlag: | Failed |
| obs_id: | Array of Strings [atrack = 0..44][xtrack = 0..29] long_name: observation id for FOR description: unique observation identifier: yyyymmddThhmm.aaSxx. Includes gran_id plus 2-digit along-track index (01-45), scene identifier (E=earth, H=hot, C=cold) and 2-digit cross-track index (01-30). coverage_content_type: referenceInformation |
| fov_obs_id: | Array of Strings [atrack = 0..44][xtrack = 0..29][fov = 0..8] long_name: observation id for FOV description: unique observation identifier for FOV: yyyymmddThhmm.aaSxx.f . Includes gran_id plus 2-digit along-track index (01-45), scene identifier (E=earth, H=hot, C=cold) , 2-digit cross-track index (01-30), and 1-digit FOV number (1-9). coverage_content_type: referenceInformation |
| obs_time_tai93: | Array of 64 bit Reals [atrack = 0..44][xtrack = 0..29] units: seconds since 1993-01-01 00:00 valid_range: -2934835217.000000, 3376598410.000000 long_name: earth view FOV midtime standard_name: time description: earth view observation midtime for each FOV AIRS_name: Time _FillValue: 9.969209968386869e+36 coverage_content_type: referenceInformation |
| obs_time_utc: | Array of 16 bit Unsigned integers [atrack = 0..44][xtrack = 0..29][utc_tuple = 0..7] long_name: earth view UTC FOV time coordinates: utc_tuple_lbl description: UTC earth view observation time as an array of integers: year, month, day, hour, minute, second, millisec, microsec _FillValue: 65535 coverage_content_type: referenceInformation |
| lat: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: degrees_north valid_range: -90.0000000, 90.0000000 long_name: latitude standard_name: latitude description: latitude of FOV center AIRS_name: Longitude _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation bounds: lat_bnds |
| lat_geoid: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: degrees_north valid_range: -90.0000000, 90.0000000 long_name: latitude standard_name: latitude description: latitude of FOV center on the geoid (without terrain correction) _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| lon: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: degrees_east valid_range: -180.000000, 180.000000 long_name: longitude standard_name: longitude description: longitude of FOV center AIRS_name: Longitude _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation bounds: lon_bnds |
| lon_geoid: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: degrees_east valid_range: -180.000000, 180.000000 long_name: longitude standard_name: longitude description: longitude of FOV center on the geoid (without terrain correction) _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| lat_bnds: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][fov_poly = 0..7] units: degrees_north valid_range: -90.0000000, 90.0000000 long_name: FOV boundary latitudes description: latitudes of points forming a polygon around the perimeter of the FOV _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| lon_bnds: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][fov_poly = 0..7] units: degrees_east valid_range: -180.000000, 180.000000 long_name: FOV boundary longitudes description: longitudes of points forming a polygon around the perimeter of the FOV _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| land_frac: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: 1 valid_range: 0.00000000, 1.00000000 long_name: land fraction standard_name: land_area_fraction coordinates: lon lat description: land fraction over the FOV AIRS_name: landFrac _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation cell_methods: area: mean (beam-weighted) |
| surf_alt: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: m ancillary_variables: surf_alt_sdev valid_range: -500.000000, 10000.0000 long_name: surface altitude standard_name: surface_altitude coordinates: lon lat description: mean surface altitude wrt earth model over the FOV AIRS_name: topog _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation cell_methods: area: mean (beam-weighted) |
| surf_alt_sdev: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: m valid_range: 0.00000000, 10000.0000 long_name: surface altitude standard deviation coordinates: lon lat description: standard deviation of surface altitude within the FOV AIRS_name: topog_err _FillValue: 9.96920997e+36 coverage_content_type: qualityInformation cell_methods: area: standard_deviation (beam-weighted) |
| sun_glint_lat: | Array of 32 bit Reals [atrack = 0..44] units: degrees_north valid_range: -90.0000000, 90.0000000 long_name: sun glint latitude standard_name: latitude coordinates: subsat_lon subsat_lat description: sun glint spot latitude at scan_mid_time. Fill for night observations. AIRS_name: glintlat _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sun_glint_lon: | Array of 32 bit Reals [atrack = 0..44] units: degrees_east valid_range: -180.000000, 180.000000 long_name: sun glint longitude standard_name: longitude coordinates: subsat_lon subsat_lat description: sun glint spot longitude at scan_mid_time. Fill for night observations. AIRS_name: glintlon _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sol_zen: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: degree valid_range: 0.00000000, 180.000000 long_name: solar zenith angle standard_name: solar_zenith_angle coordinates: lon lat description: solar zenith angle at the center of the FOV AIRS_name: solzen _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sol_azi: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: degree valid_range: 0.00000000, 360.000000 long_name: solar azimuth angle standard_name: solar_azimuth_angle coordinates: lon lat description: solar azimuth angle at the center of the FOV (clockwise from North) AIRS_name: solazi _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sun_glint_dist: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: m valid_range: 0.00000000, 30000000.0 long_name: sun glint distance coordinates: lon lat description: distance of sun glint spot to the center of the FOV AIRS_name: sun_glint_distance _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| view_ang: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: degree valid_range: 0.00000000, 180.000000 long_name: view angle standard_name: sensor_view_angle coordinates: lon lat description: off nadir pointing angle AIRS_name: scanang _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sat_zen: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: degree valid_range: 0.00000000, 180.000000 long_name: satellite zenith angle standard_name: sensor_zenith_angle coordinates: lon lat description: satellite zenith angle at the center of the FOV AIRS_name: satzen _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sat_azi: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: degree valid_range: 0.00000000, 360.000000 long_name: satellite azimuth angle standard_name: sensor_azimuth_angle coordinates: lon lat description: satellite azimuth angle at the center of the FOV (clockwise from North) AIRS_name: satazi _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sat_range: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: m valid_range: 100000.000, 10000000.0 long_name: satellite range coordinates: lon lat description: line of sight distance between satellite and FOV center _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| asc_flag: | Array of Bytes [atrack = 0..44] valid_range: 0, 1 long_name: ascending orbit flag coordinates: subsat_lon subsat_lat description: ascending orbit flag: 1 if ascending, 0 descending AIRS_name: scan_node_type _FillValue: 255 coverage_content_type: referenceInformation flag_meanings: descending ascending flag_values: 0, 1 |
| subsat_lat: | Array of 32 bit Reals [atrack = 0..44] units: degrees_north valid_range: -90.0000000, 90.0000000 long_name: sub-satellite latitude standard_name: latitude description: sub-satellite latitude at scan_mid_time AIRS_name: sat_lat _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| subsat_lon: | Array of 32 bit Reals [atrack = 0..44] units: degrees_east valid_range: -180.000000, 180.000000 long_name: sub-satellite longitude standard_name: longitude description: sub-satellite longitude at scan_mid_time AIRS_name: sat_lon _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| scan_mid_time: | Array of 64 bit Reals [atrack = 0..44] units: seconds since 1993-01-01 00:00 valid_range: -2934835217.000000, 3376598410.000000 long_name: midscan TAI93 standard_name: time coordinates: subsat_lon subsat_lat description: TAI93 at middle of earth scene scans AIRS_name: nadirTAI _FillValue: 9.969209968386869e+36 coverage_content_type: referenceInformation |
| sat_alt: | Array of 32 bit Reals [atrack = 0..44] units: m valid_range: 100000.000, 1000000.00 long_name: satellite altitude standard_name: altitude coordinates: subsat_lon subsat_lat description: satellite altitude with respect to earth model at scan_mid_time AIRS_name: satheight _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sat_pos: | Array of 32 bit Reals [atrack = 0..44][spatial = 0..2] units: m long_name: satellite position coordinates: subsat_lon subsat_lat spatial_lbl description: satellite ECR position at scan_mid_time _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sat_vel: | Array of 32 bit Reals [atrack = 0..44][spatial = 0..2] units: m s-1 long_name: satellite velocity coordinates: subsat_lon subsat_lat spatial_lbl description: satellite ECR velocity at scan_mid_time _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sat_att: | Array of 32 bit Reals [atrack = 0..44][attitude = 0..2] units: degree valid_range: -180.000000, 180.000000 long_name: satellite attitude coordinates: subsat_lon subsat_lat angular_lbl description: satellite attitude at scan_mid_time. An orthogonal triad. First element is angle about the +x (roll) ORB axis. +x axis is positively oriented in the direction of orbital flight. Second element is angle about +y (pitch) ORB axis. +y axis is oriented normal to the orbit plane with the positive sense opposite to that of the orbit's angular momentum vector H. Third element is angle about +z (yaw) axis. +z axis is positively oriented Earthward parallel to the satellite radius vector R from the spacecraft center of mass to the center of the Earth. _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| local_solar_time: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] units: hours valid_range: 0.00000000, 24.0000000 long_name: local apparent solar time coordinates: lon lat description: local apparent solar time in hours from midnight _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| mean_anom_wrt_equat: | Array of 32 bit Reals [atrack = 0..44] units: degree valid_range: 0.00000000, 360.000000 long_name: mean anomaly with respect to the equator coordinates: subsat_lon subsat_lat description: spacecraft mean anomaly measured with respect to the ascending node _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sat_sol_zen: | Array of 32 bit Reals [atrack = 0..44] units: degree valid_range: 0.00000000, 180.000000 long_name: satellite solar zenith coordinates: subsat_lon subsat_lat description: solar zenith angle at the satellite _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| sat_sol_azi: | Array of 32 bit Reals [atrack = 0..44] units: degree valid_range: 0.00000000, 360.000000 long_name: satellite solar azimuth coordinates: subsat_lon subsat_lat description: solar azimuth angle at the satellite (clockwise from North) _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| asc_node_lon: | 32 bit Real units: degrees_east valid_range: -180.000000, 180.000000 long_name: ascending node description: Longitude of the last ascending node of spacecraft orbit before time_coverage_end. AIRS_name: eq_x_longitude _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| asc_node_tai93: | 64 bit Real units: seconds since 1993-01-01 00:00 valid_range: -2934835217.000000, 3376598410.000000 long_name: ascending node time description: TAI93 time of the last ascending node of spacecraft orbit before time_coverage_end. AIRS_name: eq_x_tai _FillValue: 9.969209968386869e+36 coverage_content_type: referenceInformation |
| asc_node_local_solar_time: | 32 bit Real units: hours valid_range: 0.00000000, 24.0000000 long_name: local apparent solar time at the ascending node description: local apparent solar time at the last ascending node before time_coverage_end in hours from midnight _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| solar_beta_angle: | 32 bit Real units: degree valid_range: -90.0000000, 90.0000000 long_name: beta angle description: Beta angle for the spacecraft orbit, determining the percentage of the orbit that the spacecraft is in direct sunlight. _FillValue: 9.96920997e+36 coverage_content_type: referenceInformation |
| attitude_lbl: | Array of Strings [attitude = 0..2] long_name: rotational direction description: list of rotational directions (roll, pitch, yaw) coverage_content_type: auxiliaryInformation |
| spatial_lbl: | Array of Strings [spatial = 0..2] long_name: spatial direction description: list of spatial directions (X, Y, Z) coverage_content_type: auxiliaryInformation |
| utc_tuple_lbl: | Array of Strings [utc_tuple = 0..7] long_name: UTC date/time parts description: names of the elements of UTC when it is expressed as an array of integers year,month,day,hour,minute,second,millisecond,microsecond coverage_content_type: auxiliaryInformation |
| nh3_tot: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] ancillary_variables: nh3_tot_qc nh3_tot_err long_name: total ammonia coordinates: lon lat _FillValue: 9.96920997e+36 coverage_content_type: physicalMeasurement standard_name: atmosphere_mass_content_of_ammonia units: kg m-2 description: Total column ammonia cell_methods: area: mean |
| nh3_tot_qc: | Array of 16 bit Integers [atrack = 0..44][xtrack = 0..29][fov = 0..8] valid_range: 0, 2 long_name: nh3_tot QC coordinates: lon lat _FillValue: -127 flag_values: 0, 1, 2 coverage_content_type: qualityInformation standard_name: atmosphere_mass_content_of_ammonia status_flag description: nh3_tot QC flag flag_meanings: Best Good Do_Not_Use |
| nh3_tot_err: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] long_name: nh3_tot error estimate coordinates: lon lat _FillValue: 9.96920997e+36 coverage_content_type: qualityInformation standard_name: atmosphere_mass_content_of_ammonia standard_error units: kg m-2 description: nh3_tot error estimate |
| nh3_mmr: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][air_pres_nh3 = 0..20] ancillary_variables: nh3_mmr_qc nh3_mmr_err long_name: ammonia MMR profile coordinates: lon lat _FillValue: 9.96920997e+36 coverage_content_type: physicalMeasurement standard_name: mass_fraction_of_ammonia_in_air units: 1 description: ammonia mass mixing ratio to dry air cell_methods: area: mean |
| nh3_mmr_qc: | Array of 16 bit Integers [atrack = 0..44][xtrack = 0..29][fov = 0..8][air_pres_nh3 = 0..20] valid_range: 0, 2 long_name: nh3_mmr QC coordinates: lon lat _FillValue: -127 flag_values: 0, 1, 2 coverage_content_type: qualityInformation standard_name: mass_fraction_of_ammonia_in_air status_flag description: nh3_mmr QC flag flag_meanings: Best Good Do_Not_Use |
| nh3_mmr_err: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][air_pres_nh3 = 0..20] long_name: nh3_mmr error estimate coordinates: lon lat _FillValue: 9.96920997e+36 coverage_content_type: qualityInformation standard_name: mass_fraction_of_ammonia_in_air standard_error units: 1 description: nh3_mmr error estimate |
| surf_nh3_mmr: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] ancillary_variables: surf_nh3_mmr_qc surf_nh3_mmr_err long_name: near-surface ammonia MMR coordinates: lon lat _FillValue: 9.96920997e+36 coverage_content_type: physicalMeasurement standard_name: mass_fraction_of_ammonia_in_air units: 1 description: near-surface ammonia mass mixing ratio to dry air (~2 meters above surface) cell_methods: area: mean |
| surf_nh3_mmr_qc: | Array of 16 bit Integers [atrack = 0..44][xtrack = 0..29][fov = 0..8] valid_range: 0, 2 long_name: surf_nh3_mmr QC coordinates: lon lat _FillValue: -127 flag_values: 0, 1, 2 coverage_content_type: qualityInformation standard_name: mass_fraction_of_ammonia_in_air status_flag description: surf_nh3_mmr QC flag flag_meanings: Best Good Do_Not_Use |
| surf_nh3_mmr_err: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] long_name: surf_nh3_mmr error estimate coordinates: lon lat _FillValue: 9.96920997e+36 coverage_content_type: qualityInformation standard_name: mass_fraction_of_ammonia_in_air standard_error units: 1 description: surf_nh3_mmr error estimate |
| nh3_dof: | Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8] valid_range: 0.00000000, 10000.0000 long_name: ammonia profile DOFs coordinates: lon lat _FillValue: 9.96920997e+36 coverage_content_type: qualityInformation units: 1 description: The trace of the averaging kernel matrix as a measure of the number of pieces of information about the ammonia profile provided by the physical retrieval step. |
| air_pres_nh3_nsurf: | Array of 16 bit Integers [atrack = 0..44][xtrack = 0..29][fov = 0..8] valid_range: 1, 21 long_name: surface level coordinates: lon lat _FillValue: -32767 coverage_content_type: modelResult standard_name: model_level_number units: 1 description: Index in air_pres_nh3 of the level at the surface. Values at levels beyond this are invalid, representing data below the Earth's surface. |
| air_pres_nh3: | Array of 32 bit Reals [air_pres_nh3 = 0..20] valid_range: 0.00000000, 120000.000 long_name: NH3 pressure levels _FillValue: 9.96920997e+36 coverage_content_type: coordinate standard_name: air_pressure axis: Z units: Pa description: NH3 pressure levels |