Next Generation of Advanced Laser Fluorescence Technology for Characterization of Natural Aquatic Environments

Abstract

The project research addresses our long-term goal to develop the Advanced Laser Fluorescence (ALF) methods and instruments to improve our capacity for characterization of aquatic environments. The ALF technique (Chekalyuk and Hafez 2008, 2013a) uniquely combines spectral and temporal measurements of laser-stimulated emission (LSE) to provide assessments of key variables, including chlorophyll a (Chl), chromophoric dissolved organic matter (CDOM), and phycobiliprotein-containing phytoplankton and cyanobacteria. The measurements of variable fluorescence, Fv/Fm, yield assessments of phytoplankton photophysiological status. ALF measurements in diverse water types have demonstrated its utility for aquatic research and observations. The ALF has been integrated into the major oceanographic programs, including the California Current Ecosystem Long Term Ecological Research (CCE LTER, NSF) and California Cooperative Oceanic Fisheries Investigations (CalCOFI, NOAA).

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2013
Accession Number
ADA624779

Entities

People

  • Alexander Chekalyuk
  • Andrew Barnard
  • Mati Kahru

Organizations

  • Columbia University

Tags

Communities of Interest

  • Autonomy
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Birds
  • Cyanobacteria
  • Demographic Cohorts
  • Environment
  • Environmental Monitoring
  • Fluorescence
  • High Resolution
  • Measurement
  • Observation
  • Oceanography
  • Oceans
  • Patent Applications
  • Phytoplankton
  • Regression Analysis
  • Remote Sensing

Fields of Study

  • Environmental science

Readers

  • Marine Ecotoxicology

Technology Areas

  • Directed Energy