Enhancing moderate-resolution ocean color products over coastal/inland waters (Conference Presentation)

Nima Pahlevan; John R. Schott; Giuseppe Zibordi

doi:10.1117/12.2240713

14 December 2016 Enhancing moderate-resolution ocean color products over coastal/inland waters (Conference Presentation)

Nima Pahlevan, John R. Schott, Giuseppe Zibordi

Author Affiliations +

Proceedings Volume 9999, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2016; 99990J (2016) https://doi.org/10.1117/12.2240713
Event: SPIE Remote Sensing, 2016, Edinburgh, United Kingdom

Abstract

With the successful launch of Landsat-8 in 2013 followed by a very recent launch of Sentinel-2A, we are entering a new area where frequent moderate resolution water quality products over coastal/inland waters will be available to scientists and operational agencies. Although designed for land observations, the Operational Land Imager (OLI) has proven to provide high-fidelity products in these aquatic systems where coarse-resolution ocean color imagers fail to provide valid observations. High-quality, multi-scale ocean color products can give insights into the biogeochemical/physical processes from the upstream in watersheds, into near-shore regions, and further out in ocean basins. In this research, we describe a robust cross-calibration approach, which facilitates seamless ocean color products at multi scales. The top-of-atmosphere (TOA) OLI imagery is cross-calibrated against near-simultaneous MODIS and VIIRS ocean color observations in high-latitude regions. This allows for not only examining the overall relative performance of OLI but also for characterizing non-uniformity (i.e., banding) across its swath. The uncertainty of this approach is, on average, found to be less than 0.5% in the blue channels. The adjustments made for OLI TOA reflectance products are then validated against in-situ measurements of remote sensing reflectance collected in research cruises or at the AERONET-OC.

Conference Presentation

Citation Download Citation

Nima Pahlevan, John R. Schott, and Giuseppe Zibordi "Enhancing moderate-resolution ocean color products over coastal/inland waters (Conference Presentation)", Proc. SPIE 9999, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2016, 99990J (14 December 2016); https://doi.org/10.1117/12.2240713

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KEYWORDS

Imaging systems

Reflectivity

Remote sensing

Earth observing sensors

Landsat

MODIS

Current controlled current source

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