Impact of spectral resolution of in situ ocean color radiometric data in satellite matchups analyses

Giuseppe Zibordi, Marco Talone, Kenneth Voss, B. Carol Johnson

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The spectral resolution requirements for in situ remote sensing reflectance RRS measurements aiming at supporting satellite ocean color validation and System Vicarious Calibration (SVC) were investigated. The study, conducted using sample hyperspectral RRS from different water types, focused on the visible spectral bands of the Ocean Land Color Imager (OLCI) and of the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) satellite sensors. Allowing for a ±0.5% maximum difference between in situ and satellite derived RRS solely due to the spectral band characteristics of the in situ radiometer, a spectral resolution of 1 nm for SVC of PACE is needed in oligotrophic waters. Requirements decrease to 3 nm for SVC of OLCI. In the case of validation activities, which exhibit less stringent uncertainty requirements with respect to SVC, a maximum difference of ±1% between in situ and satellite derived data indicates the need for a spectral resolution of 3 nm for both OLCI and PACE in oligotrophic waters. Conversely, spectral resolutions of 6 nm for PACE and 9 nm for OLCI appear to satisfy validation activities in optically complex waters.

Original languageEnglish (US)
Pages (from-to)A798-A812
JournalOptics Express
Volume25
Issue number16
DOIs
StatePublished - Aug 7 2017

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spectral resolution
oceans
plankton
color
ecosystems
aerosols
spectral bands
requirements
water
extraterrestrial oceans
radiometers
remote sensing
reflectance
sensors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Impact of spectral resolution of in situ ocean color radiometric data in satellite matchups analyses. / Zibordi, Giuseppe; Talone, Marco; Voss, Kenneth; Johnson, B. Carol.

In: Optics Express, Vol. 25, No. 16, 07.08.2017, p. A798-A812.

Research output: Contribution to journalArticle

Zibordi, Giuseppe ; Talone, Marco ; Voss, Kenneth ; Johnson, B. Carol. / Impact of spectral resolution of in situ ocean color radiometric data in satellite matchups analyses. In: Optics Express. 2017 ; Vol. 25, No. 16. pp. A798-A812.
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