Satellite-based detection and monitoring of phytoplankton blooms along the Oregon coast

S. M. McKibben, P. G. Strutton, D. G. Foley, Tawnya Peterson, A. E. White

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We have applied a normalized difference algorithm to 8 day composite chlorophyll-a (CHL) and fluorescence line height (FLH) imagery obtained from the Moderate Resolution Imaging Spectroradiometer aboard the Aqua spacecraft in order to detect and monitor phytoplankton blooms in the Oregon coastal region. The resulting bloom products, termed CHLrel and FLHrel, respectively, describe the onset and advection of algal blooms as a function of the percent relative change observed in standard 8 day CHL or FLH imagery over time. Bloom product performance was optimized to consider local time scales of biological variability (days) and cloud cover. Comparison of CHLrel and FLHrel retrievals to in situ mooring data collected off the central Oregon coast from summer 2009 through winter 2010 shows that the products are a robust means to detect bloom events during the summer upwelling season. Evaluation of winter performance was inconclusive due to persistent cloud cover and limited in situ chl-a records. Pairing the products with coincident in situ physical proxies provides a tool to elucidate the conditions that induce bloom onset and identify the physical mechanisms that affect bloom advection, persistence, and decay. These products offer an excellent foundation for remote bloom detection and monitoring in this region, and the methods developed herein are applicable to any region with sufficient CHL and FLH coverage.

Original languageEnglish (US)
Article numberC12002
JournalJournal of Geophysical Research: Atmospheres
Volume117
Issue number12
DOIs
StatePublished - 2012

Fingerprint

phytoplankton
Phytoplankton
coasts
algal blooms
Coastal zones
algal bloom
Fluorescence
Advection
Satellites
fluorescence
chlorophyll
chlorophylls
Monitoring
monitoring
coast
products
cloud cover
advection
winter
imagery

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Oceanography

Cite this

Satellite-based detection and monitoring of phytoplankton blooms along the Oregon coast. / McKibben, S. M.; Strutton, P. G.; Foley, D. G.; Peterson, Tawnya; White, A. E.

In: Journal of Geophysical Research: Atmospheres, Vol. 117, No. 12, C12002, 2012.

Research output: Contribution to journalArticle

@article{0928af9957b3497fa45443f851990f79,
title = "Satellite-based detection and monitoring of phytoplankton blooms along the Oregon coast",
abstract = "We have applied a normalized difference algorithm to 8 day composite chlorophyll-a (CHL) and fluorescence line height (FLH) imagery obtained from the Moderate Resolution Imaging Spectroradiometer aboard the Aqua spacecraft in order to detect and monitor phytoplankton blooms in the Oregon coastal region. The resulting bloom products, termed CHLrel and FLHrel, respectively, describe the onset and advection of algal blooms as a function of the percent relative change observed in standard 8 day CHL or FLH imagery over time. Bloom product performance was optimized to consider local time scales of biological variability (days) and cloud cover. Comparison of CHLrel and FLHrel retrievals to in situ mooring data collected off the central Oregon coast from summer 2009 through winter 2010 shows that the products are a robust means to detect bloom events during the summer upwelling season. Evaluation of winter performance was inconclusive due to persistent cloud cover and limited in situ chl-a records. Pairing the products with coincident in situ physical proxies provides a tool to elucidate the conditions that induce bloom onset and identify the physical mechanisms that affect bloom advection, persistence, and decay. These products offer an excellent foundation for remote bloom detection and monitoring in this region, and the methods developed herein are applicable to any region with sufficient CHL and FLH coverage.",
author = "McKibben, {S. M.} and Strutton, {P. G.} and Foley, {D. G.} and Tawnya Peterson and White, {A. E.}",
year = "2012",
doi = "10.1029/2012JC008114",
language = "English (US)",
volume = "117",
journal = "Journal of Geophysical Research",
issn = "0148-0227",
publisher = "American Geophysical Union",
number = "12",

}

TY - JOUR

T1 - Satellite-based detection and monitoring of phytoplankton blooms along the Oregon coast

AU - McKibben, S. M.

AU - Strutton, P. G.

AU - Foley, D. G.

AU - Peterson, Tawnya

AU - White, A. E.

PY - 2012

Y1 - 2012

N2 - We have applied a normalized difference algorithm to 8 day composite chlorophyll-a (CHL) and fluorescence line height (FLH) imagery obtained from the Moderate Resolution Imaging Spectroradiometer aboard the Aqua spacecraft in order to detect and monitor phytoplankton blooms in the Oregon coastal region. The resulting bloom products, termed CHLrel and FLHrel, respectively, describe the onset and advection of algal blooms as a function of the percent relative change observed in standard 8 day CHL or FLH imagery over time. Bloom product performance was optimized to consider local time scales of biological variability (days) and cloud cover. Comparison of CHLrel and FLHrel retrievals to in situ mooring data collected off the central Oregon coast from summer 2009 through winter 2010 shows that the products are a robust means to detect bloom events during the summer upwelling season. Evaluation of winter performance was inconclusive due to persistent cloud cover and limited in situ chl-a records. Pairing the products with coincident in situ physical proxies provides a tool to elucidate the conditions that induce bloom onset and identify the physical mechanisms that affect bloom advection, persistence, and decay. These products offer an excellent foundation for remote bloom detection and monitoring in this region, and the methods developed herein are applicable to any region with sufficient CHL and FLH coverage.

AB - We have applied a normalized difference algorithm to 8 day composite chlorophyll-a (CHL) and fluorescence line height (FLH) imagery obtained from the Moderate Resolution Imaging Spectroradiometer aboard the Aqua spacecraft in order to detect and monitor phytoplankton blooms in the Oregon coastal region. The resulting bloom products, termed CHLrel and FLHrel, respectively, describe the onset and advection of algal blooms as a function of the percent relative change observed in standard 8 day CHL or FLH imagery over time. Bloom product performance was optimized to consider local time scales of biological variability (days) and cloud cover. Comparison of CHLrel and FLHrel retrievals to in situ mooring data collected off the central Oregon coast from summer 2009 through winter 2010 shows that the products are a robust means to detect bloom events during the summer upwelling season. Evaluation of winter performance was inconclusive due to persistent cloud cover and limited in situ chl-a records. Pairing the products with coincident in situ physical proxies provides a tool to elucidate the conditions that induce bloom onset and identify the physical mechanisms that affect bloom advection, persistence, and decay. These products offer an excellent foundation for remote bloom detection and monitoring in this region, and the methods developed herein are applicable to any region with sufficient CHL and FLH coverage.

UR - http://www.scopus.com/inward/record.url?scp=84870873013&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870873013&partnerID=8YFLogxK

U2 - 10.1029/2012JC008114

DO - 10.1029/2012JC008114

M3 - Article

AN - SCOPUS:84870873013

VL - 117

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

SN - 0148-0227

IS - 12

M1 - C12002

ER -