Assessing the NOAA-20 and S-NPP VIIRS radiometric consistency
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates

to

Document Data
Library
People
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page

The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.
i

Assessing the NOAA-20 and S-NPP VIIRS radiometric consistency

Filetype[PDF-570.96 KB]


Details You May Also Like

Details:

  • Journal Title:
    Earth Observing Missions and Sensors: Development, Implementation, and Characterization V
  • Personal Author:
  • NOAA Program & Office:
    NESDIS (National Environmental Satellite, Data, and Information Service)
  • Description:
    The Visible Infrared Imaging Radiometer Suite (VIIRS) onboard S-NPP provides global coverage once per day for the reflective solar bands. With the successful launch of NOAA-20, the global coverage of VIIRS has now been doubled. In order to use NOAA-20 VIIRS data for environmental related studies, the radiometric performance of VIIRS needs to be independently validated. In addition, for long term studies that use data from multiple satellites instruments, it is imperative to have radiometrically accurate and consistent data products from all the instruments. This study uses SNO (Simultaneous Nadir Overpass) and extended SNO over Saharan desert to assess the radiometric performance of NOAA-20 VIIRS relative to S-NPP VIIRS. Since direct SNO doesn’t exist between NOAA-20 and S-NPP, the study uses MODIS as a transfer radiometer. Both NOAA-20 and S-NPP have SNOs with MODIS. Double differencing technique is used to estimate the radiometric bias between the two VIIRS instruments. The study suggests that NOAA-20 VIIRS reflective solar bands are consistently lower in reflectance than that from S-NPP VIIRS by about 2%. Larger bias is observed for bands M5 (0.67 μm) and M7 (0.86 μm) bands mainly because S-NPP VIIRS absolute calibration for these bands is biased high by about 2%. The impact on bias due to spectral differences between the two VIIRS instruments is quantified using hyperspectral measurements from Sciamachy.
  • Source:
    Earth Observing Missions and Sensors: Development, Implementation, and Characterization V, 11, 32
  • DOI:
  • Format:
    pdf
  • Publisher:
    SPIE
  • Document Type:
    Journal Article
  • Rights Information:
    Other
  • Compliance:
    Library
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at repository.library.noaa.gov

Version 3.27.1