Abstract
In a pilot intercomparison study, C. N. Flagg and S. L. Smith (1989) showed for the first time that under optimal conditions acoustic Doppler current profilers could produce zooplankton biomass estimates with considerable accuracy and resolution. Optimal meant that the profiler was bottom mounted and thus operated in a low-noise environment, that the 307-kHz operating frequency was relatively high and thus more sensitive to small scatterers, and that there was little chance for variations in size class distributions over the short deployment interval. In the present work, the authors extended the investigation by increasing the database for intercomparison with a long-term deployment during which there will be significant size class changes and by an extension of the techniques to 150-kHz shipboard systems. Preliminary results confirm the pilot study for the bottom mounted units. The 150-kHz shipboard units have also been shown to produce good results, although they appear to be less sensitive than the 307-kHz units.
| Original language | English |
|---|---|
| Title of host publication | Unknown Host Publication Title |
| Place of Publication | Piscataway, NJ, United States |
| Publisher | Publ by IEEE |
| Pages | 1318-1323 |
| Number of pages | 6 |
| State | Published - Dec 1 1989 |
| Externally published | Yes |
| Event | Oceans '89. Part 3: Navigation; Remote Sensing; Underwater Vehicles/ Exploration - Seattle, WA, USA Duration: Sep 18 1989 → Sep 21 1989 |
Other
| Other | Oceans '89. Part 3: Navigation; Remote Sensing; Underwater Vehicles/ Exploration |
|---|---|
| City | Seattle, WA, USA |
| Period | 9/18/89 → 9/21/89 |
Fingerprint
ASJC Scopus subject areas
- Engineering(all)
Cite this
Zooplankton abundance measurements from acoustic Doppler current profilers. / Flagg, Charles N.; Smith, Sharon L.
Unknown Host Publication Title. Piscataway, NJ, United States : Publ by IEEE, 1989. p. 1318-1323.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Zooplankton abundance measurements from acoustic Doppler current profilers
AU - Flagg, Charles N.
AU - Smith, Sharon L
PY - 1989/12/1
Y1 - 1989/12/1
N2 - In a pilot intercomparison study, C. N. Flagg and S. L. Smith (1989) showed for the first time that under optimal conditions acoustic Doppler current profilers could produce zooplankton biomass estimates with considerable accuracy and resolution. Optimal meant that the profiler was bottom mounted and thus operated in a low-noise environment, that the 307-kHz operating frequency was relatively high and thus more sensitive to small scatterers, and that there was little chance for variations in size class distributions over the short deployment interval. In the present work, the authors extended the investigation by increasing the database for intercomparison with a long-term deployment during which there will be significant size class changes and by an extension of the techniques to 150-kHz shipboard systems. Preliminary results confirm the pilot study for the bottom mounted units. The 150-kHz shipboard units have also been shown to produce good results, although they appear to be less sensitive than the 307-kHz units.
AB - In a pilot intercomparison study, C. N. Flagg and S. L. Smith (1989) showed for the first time that under optimal conditions acoustic Doppler current profilers could produce zooplankton biomass estimates with considerable accuracy and resolution. Optimal meant that the profiler was bottom mounted and thus operated in a low-noise environment, that the 307-kHz operating frequency was relatively high and thus more sensitive to small scatterers, and that there was little chance for variations in size class distributions over the short deployment interval. In the present work, the authors extended the investigation by increasing the database for intercomparison with a long-term deployment during which there will be significant size class changes and by an extension of the techniques to 150-kHz shipboard systems. Preliminary results confirm the pilot study for the bottom mounted units. The 150-kHz shipboard units have also been shown to produce good results, although they appear to be less sensitive than the 307-kHz units.
UR - http://www.scopus.com/inward/record.url?scp=0024905678&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024905678&partnerID=8YFLogxK
M3 - Conference contribution
SP - 1318
EP - 1323
BT - Unknown Host Publication Title
PB - Publ by IEEE
CY - Piscataway, NJ, United States
ER -