GHRSST Level 2P Global Skin Sea Surface Temperature from the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite created by the NOAA Advanced Clear-Sky Processor for Ocean (ACSPO)

GHRSST Level 2P Global Skin Sea Surface Temperature from the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite created by the NOAA Advanced Clear-Sky Processor for Ocean (ACSPO)
SHARE THIS PAGE
Please contact us if there are any discrepancies or inaccuracies found below.
1 Publication Cited this Dataset >>
Citation metrics available for years (2016-2017)
DOI10.5067/GHVRS-2PO02
Short NameVIIRS_NPP-OSPO-L2P-v2.3
DescriptionJoint Polar Satellite System (JPSS), starting with S-NPP launched on 28 October 2011, is the new generation of the US Polar Operational Environmental Satellites (POES). As during the POES era, NOAA is responsible for all JPSS products, including Level 2 Visible Infrared Imaging Radiometer Suite (VIIRS) SST derived using NOAA heritage Advanced Clear-Sky Processor for Ocean (ACSPO) system at the native sensor resolution. VIIRS is a whiskbroom scanning radiometer which takes measurements in the cross-track direction within a field of regard of 112.56 degrees, using 16 detectors and double-side mirror assembly. At a nominal altitude of 829 km, the swath width is 3060 km, providing full daily coverage both in the day and night side of the Earth. VIIRS has 22 spectral bands covering the spectrum from 0.4-12 micrometers, including 16 moderate resolution bands (M-bands). In addition to pixel-level earth locations, Sun-Sensor geometry, and ancillary data from NCEP global weather forecast, ACSPO inputs are 3 brightness temperatures (BTs) in M12 (3.7microns), M15 (11microns), and M16 (12microns), and 2 reflectances in M5 (0.67microns) and M7 (0.87microns) bands, used for cloud identification. ACSPO output files are in netcdf4 format compliant with the GHRSST Data Specification version 2 (GDS2). Each output file (granule) contains 10 minutes of data.In each valid water pixel (defined as ocean, sea, lake or river, up to 5 km inland; fill values are reported in invalid pixels, at >5 km inland), the following layers are reported, among others: BTs in M12, 15, and 16 (original radiances are included for those users interested in direct radiance assimilation, e.g., NOAA NCEP, NASA GMAO); SSTs derived from BTs using multi-channel SST (MCSST; night) and Non-Linear SST (NLSST; day) algorithms (Petrenko et al., 2014); and ACSPO clear-sky mask (ACSM; provided in each pixel as part of l2p_flags) (Petrenko et al., 2010). We only recommend using the ACSM confidently clear pixels (equivalent to GDS2 quality level=5, also reported for each pixel). The ACSM also provides day/night, land, ice, twilight, and glint flags. Note that users of ACSPO data have the flexibility to ignore the ACSM, derive their own clear-sky mask, and use BTs and SSTs in those pixels. They may also ignore ACSPO SST, and derive their own SST from the original BTs. ACSPO VIIRS products are monitored and validated against in situ data (Xu and Ignatov, 2014) in SQUAM (Dash et al, 2010) and MICROS (Liang and Ignatov, 2011).
Version2.3
Dataset TypeOPEN
MeasurementOceans > Ocean Temperature > Sea Surface Temperature > Skin Sea Surface Temperature
Processing Level2P
CoverageRegion: Global
Northernmost Latitude: 90 degrees
Southernmost Latitude: -90 degrees
Westernmost Longitude: -180 degrees
Easternmost Longitude: 180 degrees
Time Span: 2014-May-19 to 2015-May-19
ResolutionSpatial Resolution: 0.75 km (Along) x 0.75 km (Across)
ProjectionType: Satellite native swath
Detail: Geolocation information included for each pixel
Ellipsoid: WGS 84
Latency6 hours
Swath Width3 m
Sample Frequency1.786
Temporal Repeat (Nominal)12 Hour
Temporal Repeat (Min)3 Hour
Temporal Repeat (Max)2 Day
Platform/Sensor
SUOMI-NPP
Platform
Name: Suomi National Polar-orbiting Partnership (SUOMI-NPP)
Orbit Period: 101 minutes
Inclination Angle: 97.1 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
VIIRS
SENSOR
Name: Visible Infrared Imaging Radiometer Suite (VIIRS)
Swath Width: 3040 km
Description: VIIRS is a 22-band radiometer to collect infrared and visible light for earth system monitoring

ProjectGroup for High Resolution Sea Surface Temperature (GHRSST)
Data ProviderCreator: NOAA Office of Satellite and Product Operations (OSPO)
Release Place: Suitland, MD, USA
Release Date: 2014-Nov-17
Resource: http://www.star.nesdis.noaa.gov
Keyword(s)NOAA, JPSS, VIIRS, ACSPO, sea surface temperature, SST, L2P, S-NPP, GHRSST, GDS2, ospo
Persistent IDPODAAC-GHVRS-2PO02
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
User's Guide
GDS2 User Manualhttps://podaac-tools.jpl.nasa.gov/drive/files/OceanTemperature/ghrsst/docs/GDS20r5.pdf
Documentation on the GDS version 2 format specification
Project Materials
-ftp://www.star.nesdis.noaa.gov/pub/sod/osb/aignatov/ACSPO/
Samples, Interface Control Document describing file contents, background ppt and other info
Journal References
-http://onlinelibrary.wiley.com/doi/10.1002/2013JD020637/abstract
Petrenko, B., A. Ignatov, Y. Kihai, J. Stroup, P. Dash, 2014: Evaluation and Selection of SST Regression Algorithms for JPSS VIIRS. JGR, 119, 4580-4599, doi: 10.1002/2013JD020637
-http://www.star.nesdis.noaa.gov/sod/sst/iquam/
Xu, F.
-http://www.star.nesdis.noaa.gov/sod/sst/micros/
Liang, X.
-http://journals.ametsoc.org/doi/abs/10.1175/2010JTECHA1413.1
Petrenko, B., A. Ignatov, Y. Kihai, and A. Heidinger, 2010: Clear-Sky Mask for ACSPO. JTech, 27, 1609-1623
-http://www.star.nesdis.noaa.gov/sod/sst/squam/
Dash, P., A. Ignatov, Y. Kihai
Citation NOAA Office of Satellite and Product Operations (OSPO). 2014. GHRSST Level 2P Global Skin Sea Surface Temperature from the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite created by the NOAA Advanced Clear-Sky Processor for Ocean (ACSPO). Ver. 2.3. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHVRS-2PO02.

Download Citation
RIS XML JSON-LD

For more information see Data Citations and Acknowledgments.

Journal Reference