Abstract
This paper describes a new submersible instrument which makes simultaneous measurements of chlorophyll fluorescence, beam attenuation and wide-angle scattering using a single xenon flashlamp as the light source. Cross-calibration against single-parameter commercial instruments shows satisfactory linear correlations, comparable resolution and enhanced dynamic range. The instrument package includes microprocessor control of data acquisition and a rechargeable battery pack. It is capable of acquiring high-resolution vertical profiles when deployed from a ship, or bio-optical time series from moorings. Results are presented here from initial deployments in inshore waters and in a deck tank at sea.
| Original language | English |
|---|---|
| Pages (from-to) | 35-39 |
| Number of pages | 5 |
| Journal | Optics and Laser Technology |
| Volume | 29 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 1997 |
Funding
John Redgatea nd Keith Andrew in the Biophysics Group at StrathclydeU niversity helpedw ith the technicald evelopmenot f this instrumentp ackage.J ohn Leftley at DunstaffnageM arine Laboratory gavea dvice and assistancew ith calibrationp roceduresD. ave Bowers (UCNW, Bangor) provided an opportunity for initial trials at sea.T his work was funded by NERC (UK) as part of the SIDAL specialt opic.
Keywords
- marine monitoring
- ocean optics
- submersible instrumentation
- simultaneous measurements
- chlorophyll fluorescence
- beam attenuation
- wide-angle scattering