OPeNDAP Data Access Form for 20200102000000-STAR-L2P_GHRSST-SSTsubskin-AHI_H08-ACSPO_V2.70-v02.0-fv01.0.nc
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dataset: 20200102000000-STAR-L2P_GHRSST-SSTsubskin-AHI_H08-ACSPO_V2.70-v02.0-fv01.0.nc




  • NC_GLOBAL
    • CFAC: 20466275
    • COFF: 2750.50000
    • Coefficient_for_Sd: 1737122264.000000
    • Dist_Virt_Sat: 42164.00000000000
    • Earth_Radius_Equator: 6378.137000000000
    • Earth_Radius_Polar: 6356.752300000000
    • LFAC: 20466275
    • LOFF: 2750.50000
    • Nadir_latitude: 0.01608585472523811
    • Nadir_longitude: 140.2868114232432
    • Req2_info: 1.006739501000000
    • Req_info: 0.006694384400000000
    • Rpol_info: 0.9933056160000000
    • SSP_latitude: 0.008023876253465735
    • SSP_longitude: 140.6555015429759
    • Sub_Lon: 140.7000000000000
    • Sun_Pos: 27451684.25751898, -132589315.0730202, -57476872.97469679
    • destripe: no
    • easternmost_longitude: -138.078430
    • northernmost_latitude: 81.0509872
    • southernmost_latitude: -81.0509872
    • westernmost_longitude: 59.4784317
    • Conventions: CF-1.7
    • Metadata_Conventions: Unidata Dataset Discovery v1.0
    • acknowledgment: Please acknowledge the use of these data with the following statement: These data were provided by Group for High Resolution Sea Surface Temperature (GHRSST) and the National Oceanic and Atmospheric Administration (NOAA).
    • cdm_data_type: swath
    • comment: This file contains sea surface temperature data on the original geostationary projection grid. For details on how to generate latitude/longitude values from the grid metadata, please see the current CF-1.7 document (http://cfconventions.org/Data/cf-conventions/cf-conventions-1.7/cf-conventions.html#_geostationary_projection).
    • creator_email: Alex.Ignatov@noaa.gov
    • creator_name: Alex Ignatov
    • creator_url: http://www.star.nesdis.noaa.gov
    • gds_version_id: 02.0
    • geospatial_lat_units: degrees_north
    • geospatial_lon_units: degrees_east
    • institution: NOAA/NESDIS/STAR
    • keywords: Oceans > Ocean Temperature > Sea Surface Temperature
    • keywords_vocabulary: NASA Global Change Master Directory (GCMD) Science Keywords
    • license: GHRSST protocol describes data use as free and open
    • naming_authority: org.ghrsst
    • netcdf_version_id: 4.6.3 of Apr 2 2019 11:58:26 $
    • processing_level: L2P
    • project: Group for High Resolution Sea Surface Temperature
    • publisher_email: ghrsst-po@nceo.ac.uk
    • publisher_name: The GHRSST Project Office
    • publisher_url: http://www.ghrsst.org
    • standard_name_vocabulary: CF Standard Name Table (v26, 08 November 2013)
    • history: Created by Advanced Clear-Sky Processor for Oceans (ACSPO)-AHI at NOAA/NESDIS/STAR.
    • id: AHI_H08-STAR-L2P-v2.7
    • metadata_link: <TBD>
    • platform: H08
    • references: Data convention: GHRSST Data Specification (GDS) v2.0. Algorithms: ACSPO-AHI (NOAA/NESDIS/STAR)
    • source: HS_H08_FLDK_L1B,CMC0.1deg-CMC-L4-GLOB-v2.0,NOAA-NCEP-GFS
    • summary: Sea surface temperature retrievals produced by NOAA/NESDIS/STAR from the AHI sensor.
    • title: AHI L2P SST
    • date_created: 20200102T023951Z
    • file_quality_level: 3
    • geospatial_lat_resolution: 0.0179999992
    • geospatial_lon_resolution: 0.0179999992
    • sensor: AHI
    • spatial_resolution: 2 km at nadir
    • product_version: 2.70
    • start_time: 20200102T000019Z
    • time_coverage_start: 20200102T000019Z
    • stop_time: 20200102T000939Z
    • time_coverage_end: 20200102T000939Z
    • uuid: 17492d1e-3ebe-4464-aa91-987eec7ef614
    • sst_luts: LUT_AHI_H08_L2C_DEPTH_DAYNIGHT_V01.02_20190213.txt
    • CollationVersion: 1.17.0
    • CollationInput: ACSPO_V2.70_H08_AHI_2020-01-01_2100-2110_20200101.214952.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2110-2120_20200101.215050.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2120-2130_20200101.220931.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2130-2140_20200101.221913.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2140-2150_20200101.222326.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2150-2200_20200101.223827.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2200-2210_20200101.224323.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2210-2220_20200101.225050.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2220-2230_20200101.230325.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2230-2240_20200101.231051.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2240-2250_20200101.233008.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2250-2300_20200101.233809.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2300-2310_20200101.234326.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2310-2320_20200101.235050.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2320-2330_20200102.000325.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2330-2340_20200102.001846.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2340-2350_20200102.003000.nc,ACSPO_V2.70_H08_AHI_2020-01-01_2350-2400_20200102.003843.nc,ACSPO_V2.70_H08_AHI_2020-01-02_0000-0010_20200102.004957.nc,ACSPO_V2.70_H08_AHI_2020-01-02_0010-0020_20200102.005047.nc,ACSPO_V2.70_H08_AHI_2020-01-02_0020-0030_20200102.010935.nc,ACSPO_V2.70_H08_AHI_2020-01-02_0030-0040_20200102.011920.nc,ACSPO_V2.70_H08_AHI_2020-01-02_0040-0050_20200102.012325.nc,ACSPO_V2.70_H08_AHI_2020-01-02_0050-0100_20200102.013050.nc,ACSPO_V2.70_H08_AHI_2020-01-02_0100-0110_20200102.014945.nc
    • CollationMissingGranules: 0
    • CollationAbnormalGranules: 0


sst_dtime[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -32768
    • add_offset: 0.00000000
    • comment: time plus sst_dtime gives seconds since 1981-01-01 00:00:00 UTC
    • coordinates: nj ni
    • long_name: time difference from reference time
    • scale_factor: 0.250000000
    • units: seconds
    • valid_max: 32767
    • valid_min: -32767
    • grid_mapping: geostationary
time[ time= 0 ..0] (Type is Int32)
  • attributes
    • axis: T
    • calendar: Gregorian
    • comment: Seconds since 1981-01-01 00:00:00
    • long_name: reference time of sst file
    • standard_name: time
    • units: seconds since 1981-01-01 00:00:00
satellite_zenith_angle[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -128
    • add_offset: 0.00000000
    • comment: satellite zenith angle
    • coordinates: nj ni
    • long_name: satellite zenith angle
    • scale_factor: 1.00000000
    • units: degrees
    • valid_max: 90
    • valid_min: -90
    • grid_mapping: geostationary
sea_surface_temperature[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -32768
    • add_offset: 273.149994
    • comment: SST obtained by collation algorithm
    • coordinates: nj ni
    • long_name: sea surface sub-skin temperature
    • scale_factor: 0.00999999978
    • source: NOAA
    • standard_name: sea surface sub-skin temperature
    • units: kelvin
    • valid_max: 32767
    • valid_min: -32767
    • grid_mapping: geostationary
brightness_temperature_08um6[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -32768
    • add_offset: 273.149994
    • comment: non L2P core field; brightness temperature for 8.6 um channel ABI Ch. 11
    • coordinates: nj ni
    • long_name: brightness temperature for 8.6 um channel
    • scale_factor: 0.00999999978
    • source: ABI channel 11
    • units: kelvin
    • valid_max: 32767
    • valid_min: -32767
    • grid_mapping: geostationary
brightness_temperature_10um4[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -32768
    • add_offset: 273.149994
    • comment: non L2P core field; brightness temperature for 10.4 um channel ABI Ch. 13
    • coordinates: nj ni
    • long_name: brightness temperature for 10.4 um channel
    • scale_factor: 0.00999999978
    • source: ABI channel 13
    • units: kelvin
    • valid_max: 32767
    • valid_min: -32767
    • grid_mapping: geostationary
brightness_temperature_11um2[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -32768
    • add_offset: 273.149994
    • comment: non L2P core field; brightness temperature for 11.2 um channel ABI Ch. 14
    • coordinates: nj ni
    • long_name: brightness temperature for 11.2 um channel
    • scale_factor: 0.00999999978
    • source: ABI channel 14
    • units: kelvin
    • valid_max: 32767
    • valid_min: -32767
    • grid_mapping: geostationary
brightness_temperature_12um3[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -32768
    • add_offset: 273.149994
    • comment: non L2P core field; brightness temperature for 12.3 um channel ABI Ch. 15
    • coordinates: nj ni
    • long_name: brightness temperature for 12.3 um channel
    • scale_factor: 0.00999999978
    • source: ABI channel 15
    • units: kelvin
    • valid_max: 32767
    • valid_min: -32767
    • grid_mapping: geostationary
sses_bias[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -128
    • add_offset: 0.00000000
    • comment: Bias is derived against Piecewise Regression SST produced by local regressions with buoys. Subtracting sses_bias from sea_surface_temperature producess more accurate SST at the depth of buoys Further information at (Petrenko et al., JTECH, 2016; doi:10.1175/JTECH-D-15-0166.1)
    • coordinates: nj ni
    • long_name: SSES bias estimate
    • scale_factor: 0.0160000008
    • units: kelvin
    • valid_max: 127
    • valid_min: -127
    • grid_mapping: geostationary
sses_standard_deviation[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -128
    • add_offset: 1.00000000
    • comment: Standard deviation of sea_surface_temperature from SST measured by drifting buoys. Further information at (Petrenko et al., JTECH, 2016; doi:10.1175/JTECH-D-15-0166.1)
    • coordinates: nj ni
    • long_name: SSES standard deviation
    • scale_factor: 0.00999999978
    • units: kelvin
    • valid_max: 127
    • valid_min: -127
    • grid_mapping: geostationary
dt_analysis[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -128
    • add_offset: 0.00000000
    • comment: Deviation from reference SST, i.e., dt_analysis = SST - reference SST
    • coordinates: nj ni
    • long_name: deviation from SST reference
    • scale_factor: 0.100000001
    • source: CMC0.1deg-CMC-L4-GLOB-v2.0
    • units: kelvin
    • valid_max: 127
    • valid_min: -127
    • grid_mapping: geostationary
wind_speed[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -128
    • add_offset: 0.00000000
    • comment: Typically represents surface winds (10 meters above the sea surface)
    • coordinates: nj ni
    • height: 10 m
    • long_name: wind speed
    • scale_factor: 0.150000006
    • source: Wind speed from NCEP GFS data
    • standard_name: wind_speed
    • units: m s-1
    • valid_max: 127
    • valid_min: -127
    • grid_mapping: geostationary
sea_ice_fraction[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -128
    • add_offset: 0.00000000
    • comment: Fractional sea ice cover from reference SST
    • coordinates: nj ni
    • long_name: sea ice fraction
    • scale_factor: 0.00999999978
    • source: CMC0.1deg-CMC-L4-GLOB-v2.0
    • standard_name: sea_ice_area_fraction
    • units: 1
    • valid_max: 100
    • valid_min: 0
    • grid_mapping: geostationary
l2p_flags[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • comment: L2P common flags in bits 1-6 and data provider flags (from ACSPO mask) in bits 9-16: bit01 (0=IR: 1=microwave); bit02 (0=ocean; 1=land); bit03 (0=no ice; 1=ice); bits04-07 (reserved,set to 0); bit08 (0=anti-solar; 1=solar); bit09 (0=radiance valid; 1=invalid); bit10 (0=night; 1=day); bit11 (0=ocean; 1=land); bit12 (0=good quality data; 1=degraded quality data due to \"twilight\" region); bit13 (0=no glint; 1=glint); bit14 (0=no snow/ice; 1=snow/ice); bits15-16 (00=clear; 01=probably clear; 10=cloudy; 11=clear-sky mask undefined)
    • coordinates: nj ni
    • flag_masks: 1, 2, 4, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, -32768, -16384
    • flag_meanings: microwave land ice solar invalid day land twilight glint ice probably_clear cloudy mask_undefined
    • long_name: L2P flags
    • valid_max: 32767
    • valid_min: -32768
    • grid_mapping: geostationary
quality_level[ time= 0 ..0] [ nj= 0 ..5499] [ ni= 0 ..5499] (Grid of Int16 values)
  • attributes
    • _FillValue: -128
    • comment: SST quality levels: 5 corresponds to \"clear-sky\" pixels and is recommended for operational applications and validation.
    • coordinates: nj ni
    • flag_meanings: no_data bad_data not_used not_used not_used best_quality
    • flag_values: 0, 1, 2, 3, 4, 5
    • long_name: quality level of SST pixel
    • valid_max: 5
    • valid_min: 0
    • grid_mapping: geostationary
geostationary(Type is Int32)
  • attributes
    • grid_mapping_name: geostationary
    • semi_major_axis: 6378137.000000000
    • semi_minor_axis: 6356752.314245000
    • inverse_flattening: 298.2572235630000
    • latitude_of_projection_origin: 0.000000000000000
    • longitude_of_projection_origin: 140.7000000000000
    • false_easting: 0.000000000000000
    • false_northing: 0.000000000000000
    • horizontal_datum_name: WGS_1984
    • reference_ellipsoid_name: WGS 84
    • prime_meridian_name: Greenwich
    • geographic_crs_name: WGS 84
    • sweep_angle_axis: y
    • perspective_point_height: 35785863.00000000
nj[ nj= 0 ..5499] (Type is Float32)
  • attributes
    • axis: Y
    • units: radians
    • long_name: y coordinate of projection
    • standard_name: projection_y_coordinate
    • valid_min: -0.153664023
    • valid_max: 0.153664023
ni[ ni= 0 ..5499] (Type is Float32)
  • attributes
    • axis: X
    • units: radians
    • long_name: x coordinate of projection
    • standard_name: projection_x_coordinate
    • valid_min: -0.153664023
    • valid_max: 0.153664023

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