Characterization of Karenia brevis blooms on the West Florida Shelf using ocean color satellite imagery: implications for bloom maintenance and evolution

Inia M. Soto; Frank E. Muller-Karger; Chuanmin Hu; Jennifer Wolny

doi:10.1117/1.JRS.11.012002

21 December 2016 Characterization of Karenia brevis blooms on the West Florida Shelf using ocean color satellite imagery: implications for bloom maintenance and evolution

Inia M. Soto, Frank E. Muller-Karger, Chuanmin Hu, Jennifer Wolny

Author Affiliations +

Journal of Applied Remote Sensing, Vol. 11, Issue 1, 012002 (December 2016). https://doi.org/10.1117/1.JRS.11.012002

Abstract

Satellite ocean color remote sensing techniques, coupled with <italic<in situ</italic< data, were used to examine the spatial extent and evolution of four <italic<Karenia brevis</italic< blooms on the West Florida Shelf (WFS) in 2004, 2005, 2006, and 2011. Observations were obtained with the moderate resolution imaging spectroradiometer (MODIS-Aqua). These four blooms were delineated by combining remote-sensing reflectance at 555 nm and normalized fluorescence line height. In 2004 and 2005, the WFS was affected by several hurricanes, including the category 5 storm Hurricane Katrina. These hurricanes led to increased river discharge and vertical mixing which favored bloom intensification and dispersion. No hurricanes passed over the WSF in 2006; however, storms in south Florida may have aided bloom intensification via increased river discharge. In 2011, a bloom appeared off Venice, Florida, where several small creeks discharge. The bloom moved south toward Charlotte Harbor where it intensified and lingered for several months as it received nutrients from riverine discharge and upwelling events. While it is difficult to identify initiation stages of a <italic<K. brevis</italic< bloom (<inline-formula< <mml:math display="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML"< <mml:mrow< <mml:mo form="prefix"<<</mml:mo< <mml:mo<∼</mml:mo< <mml:mn<50,000</mml:mn< <mml:mtext< </mml:mtext< <mml:mtext<cells</mml:mtext< <mml:mtext< </mml:mtext< <mml:msup< <mml:mrow< <mml:mi mathvariant="normal"<L</mml:mi< </mml:mrow< <mml:mrow< <mml:mo<−</mml:mo< <mml:mn<1</mml:mn< </mml:mrow< </mml:msup< </mml:mrow< </mml:math< </inline-formula<) using satellite imagery, the techniques used here provide information about bloom evolution (size, duration, and advection) and insight into factors affecting bloom dynamics.

Citation Download Citation

Inia M. Soto, Frank E. Muller-Karger, Chuanmin Hu, and Jennifer Wolny "Characterization of Karenia brevis blooms on the West Florida Shelf using ocean color satellite imagery: implications for bloom maintenance and evolution," Journal of Applied Remote Sensing 11(1), 012002 (21 December 2016). https://doi.org/10.1117/1.JRS.11.012002

Received: 22 May 2016; Accepted: 14 October 2016; Published: 21 December 2016

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available