Retrieval of phycocyanin concentration in the eutrophic Taihu Lake

  • Jing Wang
  • , Runhe Shi*
  • , Wei Gao
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Phycocyanin (PC) in the blue-green algae is usually used to detect the quantity of the blue-green algae, and it has a special absorption at 620nm waveband. Taihu Lake has become severely turbid and eutrophic in recent years. However, the accuracy of empirical models varies highly. Therefore, it is very useful to find a model which can retrieve PC concentration in a good accuracy. In this work, four models (i.e. single band model, the radio model, the first-derivative model, the three-band model and empirical ratio model) were developed based on remote sending reflectance and measured PC concentration in Taihu Lake in May, 2010 to retrieve PC concentration and then to find out which one is the best. The results show that the 2nd order polynomial models generally had a better performance than the line models. The three-band model was the most optimal model because it had the highest values of R2 and the lowest values of RMSE.

Original languageEnglish
Title of host publicationRemote Sensing and Modeling of Ecosystems for Sustainability XI
EditorsJinnian Wang, Ni-Bin Chang, Wei Gao
PublisherSPIE
ISBN (Electronic)9781628412482
DOIs
StatePublished - 2014
EventRemote Sensing and Modeling of Ecosystems for Sustainability XI - San Diego, United States
Duration: 18 Aug 201420 Aug 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9221
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceRemote Sensing and Modeling of Ecosystems for Sustainability XI
Country/TerritoryUnited States
CitySan Diego
Period18/08/1420/08/14

Keywords

  • Eutrophication
  • Phycocyanin
  • Remote sensing
  • Retrieval model
  • Taihu lake

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