Processes Affecting Variability of Fluorescence Signals from Benthic Targets in Shallow Waters
Abstract
LONG-TERM GOALS. The long term goals of this research program are to develop the biophysical tools and models that predict the sources of variability of chlorophyll fluorescence from benthic targets in shallow waters. OBJECTIVES. The scientific objectives of the project are to relate the fluorescence lifetimes of photosynthetic targets to the amplitude-based fluorescence measurements. In so doing, laser-based fluorescence retrievals from line-scanners or other in situ instruments can be deconvoluted in the lifetime domain to reconstruct biophysical and physiological information about the photosynthetic activity of target organisms. APPROACH. The basic approach taken is to compare high-precision, laser-induced fluorescence lifetimes of model organisms with amplitude based measurements using fast-repetition rate fluorescence techniques. The research is conducted in collaboration with Drs. Maxim Gorbunov, Zbigniew Kolber and Edward Castner. Dr. Castner is a physical chemist specializing in photochemical processes in the Department of Chemistry at Brookhaven National Laboratory. The model organisms used are primarily cultured zooxanthellae obtained from a variety of symbiotic marine invertebrates.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1997
- Accession Number
- ADA635921
Entities
People
- Paul Falkowski
Organizations
- Brookhaven National Laboratory