GHRSST NOAA/STAR Metop-A AVHRR FRAC ACSPO v2.80 1km L2P Dataset (GDS v2)
(AVHRRF_MA-STAR-L2P-v2.80)
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Publications citing GHRSST NOAA/STAR Metop-A AVHRR FRAC ACSPO v2.80 1km L2P Dataset (GDS v2)
Citation metrics available for years (2014-2022)
Year | Citation |
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2021 | STAR. GHRSST NOAA/STAR Metop-A AVHRR FRAC ACSPO v2.80 1 km L2P Dataset (GDS v2); Jet Propulsion Laboratory: Pasadena, CA, USA, 2021. Metop First Generation AVHRR FRAC SST Reanalysis Version 1, Journal ,10.3390/rs13204046 |
Version | 2.80 |
Processing Level | 2P |
Start/Stop Date | 2006-Dec-01 to 2021-Nov-14 |
Short Name | AVHRRF_MA-STAR-L2P-v2.80 |
Description | The MetOp First Generation (FG) is a European multi-satellite program jointly established by ESA and EUMETSAT, comprising three satellites, MetOp-A, -B and -C. The primary sensor onboard MetOp-FG, the Advanced Very High Resolution Radiometer/3 (AVHRR/3) contributed by NOAA, measures Earth emissions and reflectances in 5 out of 6 available bands (centered at 0.63, 0.83, 1.61, 3.7, 11 and 12 microns), in a swath of 2,600km from an 817km altitude. These data are collected in a Full Resolution Area Coverage (FRAC) mode, with pixel size of 1.1km at nadir. MetOp-A launched on 19 October 2006 is the first in the MetOp-FG series. The NOAA Advanced Clear-Sky Processor for Ocean (ACSPO) Level 2 Preprocessed (L2P) SST product is derived at the full AVHRR FRAC resolution and reported in 10 minute granules in NetCDF4 format, compliant with the GHRSST Data Specification version 2 (GDS2). Subskin SSTs are derived using the regression Nonlinear SST (NLSST) algorithm, which employs three bands (3.7, 11 and 12 microns) at night and two bands (11 and 12 microns) during the day. The ACSPO AVHRR FRAC L2P product is monitored and validated against quality controlled in situ data, provided by the NOAA in situ SST Quality Monitor system (iQuam; Xu and Ignatov, 2014, https://doi.org/10.1175/JTECH-D-13-00121.1 ), in another NOAA system, SST Quality Monitor (SQUAM; Dash et al, 2010, https://doi.org/10.1175/2010JTECHO756.1 ). SST imagery and clear-sky masking are continuously evaluated, and checked for consistency with other sensors and platforms, in the ACSPO Regional Monitor for SST (ARMS) system. MetOp-A orbital characteristics and AVHRR/3 sensor performance are tracked in the NOAA 3S system (He et al., 2016, https://doi.org/10.3390/rs8040346 ).The L2P Near Real Time (NRT) SST files are archived at PO.DAAC with 3-6 hours latency, and then replaced by the Re-ANalysis (RAN) SST after about 2 months later with identical file names. Two features can be used to identify them: different file name time stamps and netCDF global attribute metadata source=NOAA-NCEP-GFS for NRT and source=MERRA-2 for RAN. A reduced size (0.45GB/day), equal-angle gridded (0.02-deg resolution) ACSPO L3U product is available at https://doi.org/10.5067/GHMTA-3US28 |
DOI | 10.5067/GHMTA-2PS28 |
Measurement | OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE |
Swath Width | 2400 km |
Platform/Sensor | METOP-A / Platform Name: Meteorological Operational Satellite - A (METOP-A) Orbit Period: 101.3 minutes Inclination Angle: 98.7 degrees AVHRR SENSOR Name: Advanced Very High Resolution Radiometer (AVHRR) Swath Width: 2400.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. |
Project | Group for High Resolution Sea Surface Temperature (GHRSST) |
Data Provider | Publisher: PO.DAAC Creator: NOAA/STAR Release Place: Camp Springs, MD (USA) Release Date: 2021-Apr-05 Resource: https://podaac.jpl.nasa.gov/GHRSST |
Format | netCDF-4 |
Keyword(s) | GHRSST, sea surface temperature, AVHRR, SST, STAR, MetOp-A, v2.80 |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Spatial Resolution: 1100 Meters x 1100 Meters Temporal Resolution: Hourly - < Daily Coverage Region: GLOBAL North Bounding Coordinate: 90 degrees South Bounding Coordinate: -90 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 2006-Dec-01 to 2021-Nov-14 Granule Time Span: 2006-Dec-01 to 2021-Nov-14Swath Width: 2400 km Projection Projection Type: Satellite native swath Projection Detail: Geolocation information included for each pixel Ellipsoid: WGS 84 |
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us-west-2 | |
podaac-ops-cumulus-protected/AVHRRF_MA-STAR-L2P-v2.80/ | |
podaac-ops-cumulus-public/AVHRRF_MA-STAR-L2P-v2.80/ | |
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Name | Long Name | Unit |
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dt_analysis | deviation from SST reference | kelvin |
l2p_flags | L2P flags | |
lat | latitude | degrees_north |
lon | longitude | degrees_east |
quality_level | quality level of SST pixel | |
satellite_zenith_angle | satellite zenith angle | degrees |
sea_ice_fraction | sea ice fraction | 1 |
sea_surface_temperature | sea_surface_subskin_temperature | kelvin |
sses_bias | SSES bias estimate | kelvin |
sses_standard_deviation | SSES standard deviation | kelvin |
sst_dtime | time difference from reference time | seconds |
sst_front_position | Binary SST front position indicator | |
sst_gradient_magnitude | SST gradient magnitude value | kelvin/km |
time | reference time of sst file | seconds since 1981-01-01 00:00:00 |
wind_speed | wind speed | m s-1 |
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SCIENCE DATA PRODUCT VALIDATION | |
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USER'S GUIDE | |
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DATA CITATION POLICY | |
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Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
Citation | NOAA/STAR. 2021. GHRSST L2P Metop-A AVHRR FRAC ACSPO v2.80 1km Dataset. Ver. 2.80. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHMTA-2PS28
For more information see Data Citations and Acknowledgments.
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Journal Reference | Pryamitsyn, V.; Petrenko, B.; Ignatov, A.; Kihai, Y. 2021. Metop First Generation AVHRR FRAC SST Reanalysis Version 1, Remote Sensing, 13, 20. https://doi.org//10.3390/rs13204046 |