Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Spatial variability of oceanic phycoerythrin spectral types derived from airborne laser-induced fluorescence emissions

Not Accessible

Your library or personal account may give you access

Abstract

We report spatial variability of oceanic phycoerythrin spectral types detected by means of a blue spectral shift in airborne laser-induced fluorescence emission. The blue shift of the phycoerythrobilin fluorescence is known from laboratory studies to be induced by phycourobilin chromophore substitution at phycoerythrobilin chromophore sites in some strains of phycoerythrin-containing marine cyanobacteria. The airborne 532-nm laser-induced phycoerythrin fluorescence of the upper oceanic volume showed distinct segregation of cyanobacterial chromophore types in a flight transect from coastal water to the Sargasso Sea in the western North Atlantic. High phycourobilin levels were restricted to the oceanic (oligotrophic) end of the flight transect, in agreement with historical ship findings. These remotely observed phycoerythrin spectral fluorescence shifts have the potential to permit rapid, wide-area studies of the spatial variability of spectrally distinct cyanobacteria, especially across interfacial regions of coastal and oceanic water masses. Airborne laser-induced phytoplankton spectral fluorescence observations also further the development of satellite algorithms for passive detection of phytoplankton pigments. Optical modifications to the NASA Airborne Oceanographic Lidar are briefly described that permitted observation of the fluorescence spectral shifts.

© 1998 Optical Society of America

Full Article  |  PDF Article
More Like This
Satellite retrieval of the absorption coefficient of phytoplankton phycoerythrin pigment: theory and feasibility status

Frank E. Hoge, C. Wayne Wright, Paul E. Lyon, Robert N. Swift, and James K. Yungel
Appl. Opt. 38(36) 7431-7441 (1999)

Airborne laser-induced oceanic chlorophyll fluorescence: solar-induced quenching corrections by use of concurrent downwelling irradiance measurements

Frank E. Hoge, C. Wayne Wright, Robert N. Swift, and James K. Yungel
Appl. Opt. 37(15) 3222-3226 (1998)

Satellite retrieval of inherent optical properties by inversion of an oceanic radiance model: a preliminary algorithm

Frank E. Hoge, C. Wayne Wright, Paul E. Lyon, Robert N. Swift, and James K. Yungel
Appl. Opt. 38(3) 495-504 (1999)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved