VIIRS Ocean Color Science Quality Mission-long Reprocessed Environmental Data Records (EDR) Level-2 global products from January 2012 to the present minus 15 days

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This dataset contains Ocean Color (OC) Science Quality Environmental Data Records (EDR) Level-2 products from the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the Suomi-National Polar-orbiting Partnership (SNPP) satellite. The Level-2 OC EDR are produced by NESDIS Center for Satellite Applications and Research (STAR) OC team using the Multi-Sensor Level-1 to Level-2 (MSL12) ocean color data processing system. Science quality OC EDR are produced using the significantly improved VIIRS Sensor Data Records (SDR or Level-1B data), which are generated by the OC team (named OC-SDR) using both the solar and lunar approaches, and assimilated ancillary input data (as opposed to model predicted data used in near-real time data production). MSL12 and the OC-SDR calibration improvements were developed by the STAR OC team [Wang et al., 2013; Sun and Wang, 2015; Wang et al., 2016; Wang et al., 2017].

The Science Quality Level-2 VIIRS OC EDR are produced daily on a delayed mode (present day minus 15 days) with global spatial coverage at 750 m spatial resolution at nadir. In addition to this forward stream processing, a consistent, full-mission dataset was generated with the same processing covering the time period from the first post-launch useable data in January 2012 to present day minus 15 days, also with global spatial coverage. The Level-2 (swath or granule data) processing uses MSL12 version 1.2 and generates the following standard products at the nominal 750 m resolution in NetCDF format: normalized water-leaving radiances for 6 VIIRS visible bands (i.e., bands M1-M5 at 410 nm, 443 nm, 486 nm, 551 nm, and 671 nm, respectively, and band I1 at 638 nm), chlorophyll-a concentration (Chl-a), the diffuse attenuation coefficient at 490 nm wavelength (Kd(490)), the diffuse attenuation coefficient for photosynthetically available radiation (Kd(PAR)), and a quality score product (QA Score).

Note that the MSL12 is the NOAA enterprise processing system for all OC data (from multiple sensors and/or satellite missions) which has replaced the Integrated Data Processing Segment (IDPS) from the Joint Polar Satellite System (JPSS) program for VIIRS data.

These Level-2 records are a primary source of information for numerous regional and global marine resource stewardship efforts and are used in applications in support of the NOAA mission and other applications such as fish stock assessments, local habitat characterization, phytoplankton pigment concentration and whale distribution, weather predictions and forecasting, as well as basic physical and biological oceanographic studies of our changing ocean environments.

For additional information about OC data, other data formats and a variety of search tools, visit CoastWatch.NOAA.gov.
  • Cite as: NOAA STAR Ocean Color Science Team (2017). VIIRS Ocean Color Science Quality Mission-long Reprocessed Environmental Data Records (EDR) Level-2 global products from January 2012 to the present minus 15 days. NOAA National Centers for Environmental Information. Dataset. [access date]
gov.noaa.nodc:STAR-VIIRS-OCR-L2
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  • HTTP (download)
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  • FTP (download)
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  • THREDDS (download)
    These data are available through a variety of services via a THREDDS (Thematic Real-time Environmental Distributed Data Services) Data Server (TDS). Depending on the dataset, the TDS can provide WMS, WCS, DAP, HTTP, and other data access and metadata services as well. For more information on the TDS, see http://www.unidata.ucar.edu/software/thredds/current/tds/.
Distribution Formats
  • netCDF (Version: netCDF-4)
    • File Specification: NetCDF Climate and Forecast (CF) Metadata Convention
Ordering Instructions Data may be searched and downloaded using online services provided by NCEI using the online resource URLs in this record. Contact NCEI Information Services for custom orders. When requesting data from NCEI, the desired data set may be referred to by the unique package identification number listed in this metadata record.
Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact Information Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Time Period 2012-01 to Present
Spatial Bounding Box Coordinates
N: 90
S: -80
E: 180
W: -180
Spatial Coverage Map
General Documentation
  • Dataset Description
    Navigate directly to the URL for a descriptive web page with download links.
Associated Resources
  • NOAA CoastWatch / OceanWatch Ocean Color - Science Quality - VIIRS SNPP
Publication Dates
  • publication: 2017-08-07
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Ongoing - data is continually being updated
Data Update Frequency As needed
Purpose To provide high-quality global ocean color products in support of science research and operational applications.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: NOAA STAR Ocean Color Science Team (2017). VIIRS Ocean Color Science Quality Mission-long Reprocessed Environmental Data Records (EDR) Level-2 global products from January 2012 to the present minus 15 days. NOAA National Centers for Environmental Information. Dataset. [access date]
Cited Authors
  • NOAA STAR Ocean Color Science Team
Originators
Contributors
Resource Providers
Points of Contact
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science and Services Keywords
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
  • EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION
  • EARTH SCIENCE > OCEANS > OCEAN OPTICS > EXTINCTION COEFFICIENTS
  • EARTH SCIENCE > OCEANS > OCEAN OPTICS > OCEAN COLOR
  • EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION
  • EARTH SCIENCE > OCEANS > OCEAN OPTICS > TURBIDITY
  • EARTH SCIENCE > OCEANS > OCEAN OPTICS > WATER-LEAVING RADIANCE
NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table
  • diffuse_attenuation_coefficient_of_downwelling_photosynthetic_radiative_flux_in_sea_water
  • diffuse_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water
  • latitude
  • longitude
  • mass_concentration_of_chlorophyll_a_in_sea_water
  • normalized_surface_upwelling_radiance_in_air_emerging_from_sea_water
  • projection_x_coordinate
  • projection_y_coordinate
  • time
  • volume_absorption_coefficient_of_radiative_flux_in_sea_water
  • volume_backwards_scattering_coefficient_of_radiative_flux_in_sea_water
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/OSDPD > Office of Satellite Data Processing and Distribution, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/STAR > Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce
NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords
  • SUOMI-NPP > Suomi National Polar-orbiting Partnership
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
  • VIIRS > Visible-Infrared Imager-Radiometer Suite
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
  • GEOGRAPHIC REGION > GLOBAL OCEAN
Use Constraints
  • Cite as: NOAA STAR Ocean Color Science Team (2017). VIIRS Ocean Color Science Quality Mission-long Reprocessed Environmental Data Records (EDR) Level-2 global products from January 2012 to the present minus 15 days. NOAA National Centers for Environmental Information. Dataset. [access date]
Access Constraints
  • NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • Digital data may be downloaded from NCEI at no charge in most cases. For custom orders of digital data or to obtain a copy of analog materials, please contact NCEI Information Services for information about current fees.
Acquisition Information (collection)
Instrument
  • VIIRS
Platform
  • Suomi NPP
Last Modified: 2018-04-09T13:29:36
For questions about the information on this page, please email: NODC.DataOfficer@noaa.gov