Impact of measurement uncertainties on determination of chlorophyll-specific absorption coefficient for marine phytoplankton

David McKee, Rüdiger Röttgers, Griet Neukermans, Violeta Sanjuan Calzado, Charles Trees, Marina Ampolo-Rella, Claire Neil, Alex Cunningham

Research output: Contribution to journalArticle

16 Citations (Scopus)
93 Downloads (Pure)

Abstract

Understanding variability in the chlorophyll-specific absorption of marine phytoplankton, aph*Chl (λ), is essential for primary production modelling, calculation of underwater light field characteristics, and development of algorithms for remote sensing of chlorophyll concentrations. Previous field and laboratory studies have demonstrated significant apparent variability in aph*Chl (λ) for natural samples and algal cultures. However, the potential impact of measurement uncertainties on derived values of aph*Chl (λ) has received insufficient study. This study presents an analysis of measurement uncertainties for a data set collected in the Ligurian Sea in Spring and assesses the impact on estimates of aph*Chl (λ). It is found that a large proportion of apparent variability in this set of aph*Chl (λ) can be attributed to measurement errors. Application of the same analysis to the global NOMAD data set suggests that a significant fraction of variability in aph*Chl (λ) may also be due to measurement errors.
Original languageEnglish
Number of pages13
JournalJournal of Geophysical Research: Oceans
Early online date30 Dec 2014
DOIs
Publication statusPublished - 2015

Keywords

  • chlorophyll-specific absorption
  • chlorophyll uncertainty
  • filter pad absorption
  • point source integrating

Fingerprint Dive into the research topics of 'Impact of measurement uncertainties on determination of chlorophyll-specific absorption coefficient for marine phytoplankton'. Together they form a unique fingerprint.

Cite this