Quantifying Uncertainties in OC-SMART Ocean Color Retrievals: A Bayesian Inversion Algorithm

Elliot Pachniak, Yongzhen Fan, Wei Li, Knut Stamnes

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The Ocean Color—Simultaneous Marine and Aerosol Retrieval Tool (OC-SMART) is a robust data processing platform utilizing scientific machine learning (SciML) in conjunction with comprehensive radiative transfer computations to provide accurate remote sensing reflectances ((Formula presented.) estimates), aerosol optical depths, and inherent optical properties. This paper expands the capability of OC-SMART by quantifying uncertainties in ocean color retrievals. Bayesian inversion is used to relate measured top of atmosphere radiances and a priori data to estimate posterior probability density functions and associated uncertainties. A framework of the methodology and implementation strategy is presented and uncertainty estimates for (Formula presented.) retrievals are provided to demonstrate the approach by applying it to MODIS, OLCI Sentinel-3, and VIIRS sensor data.

Original languageEnglish
Article number301
JournalAlgorithms
Volume16
Issue number6
DOIs
StatePublished - Jun 2023

Keywords

  • Bayesian inversion
  • neural networks
  • remote sensing
  • uncertainty

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