Retrieval of colored dissolved organic matter and dissolved organic carbon in the singapore strait

Elizabeth Wing-See Wong, Joel Wong*, Nivedita Sanwlani, Patrick Martin, Soo Chin Liew

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Monitoring the transport of dissolved organic carbon (DOC) from land to ocean is vital in studying the carbon cycles of terrestrial and aquatic ecosystems. It has been estimated that tropical peatlands in coastal Southeast Asia contribute about 10% of the global land-ocean DOC flux. The use of remote sensing techniques in monitoring DOC would aid in better understanding of biogeochemical processes in this region. We present a quasi-analytical algorithm (QAA) adapted to the Singapore Strait to retrieve colored dissolved organic matter (CDOM) and DOC concentration from the Ocean Land Color Instrument onboard the Sentinel 3A satellite. Our adaptation of the QAA significantly improved retrievals of the water absorption and backscattering coefficients from remote sensing reflectance. Using CDOM absorption as a proxy, the DOC concentration was estimated with a mean absolute percentage error of 5.5%.

Original languageEnglish
Title of host publicationACRS 2020 - 41st Asian Conference on Remote Sensing
PublisherAsian Association on Remote Sensing
ISBN (Electronic)9781713829089
Publication statusPublished - 2020
Externally publishedYes
Event41st Asian Conference on Remote Sensing, ACRS 2020 - Deqing City, Virtual, China
Duration: Nov 9 2020Nov 11 2020

Publication series

NameACRS 2020 - 41st Asian Conference on Remote Sensing

Conference

Conference41st Asian Conference on Remote Sensing, ACRS 2020
Country/TerritoryChina
CityDeqing City, Virtual
Period11/9/2011/11/20

Bibliographical note

Publisher Copyright:
© 2020 ACRS 2020 - 41st Asian Conference on Remote Sensing. All rights reserved.

ASJC Scopus Subject Areas

  • Computer Networks and Communications

Keywords

  • Quasi-analytical algorithm
  • Sentinel 3
  • Southeast Asia
  • Tropical peatlands
  • Water quality

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