The accuracy of acoustic vertical velocity measurements: instrument biases and the effect of Zooplankton migration

被引：14
|
作者：
Ott, MW [1 ]
机构：
[1] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA
来源：
CONTINENTAL SHELF RESEARCH | 2005年 / 25卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
current velocity; acoustic current meters; Zooplankton; vertical migrations; Canada; British Columbia; Juan de Fuca Strait;
D O I：
10.1016/j.csr.2004.09.007
中图分类号：
P7 [海洋学];
学科分类号：
0707 ;
摘要：
Doppler velocity and backscatter intensity records from an energetic estuarine flow in which backscatter reveal a significant diel migration of zooplankton are used to examine the reliability of the vertical velocity measurements. During periods when zooplankton were not migrating, the measured value is shown to be an accurate representation of the actual vertical velocity. At depths and times of active migration, with large increases in backscatter intensity, it is expected that vertical velocity measurements should be strongly affected by zooplankton motion. This does not appear to be the case, however, as the effect is much smaller than expected at sunset, and non-existent at sunrise. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：243 / 257
页数：15
相关论文
共 42 条
  • [21] Accuracy, reproducibility and sensitivity of acoustic Doppler technology for velocity and discharge measurements in medium-sized rivers
    Song, S.
    Schmalz, B.
    Hoermann, G.
    Fohrer, N.
    HYDROLOGICAL SCIENCES JOURNAL, 2012, 57 (08) : 1626 - 1641
  • [22] VHF RADAR INTERFEROMETRY MEASUREMENTS OF VERTICAL VELOCITY AND THE EFFECT OF TILTED REFRACTIVITY SURFACES ON STANDARD DOPPLER MEASUREMENTS
    PALMER, RD
    LARSEN, MF
    WOODMAN, RF
    FUKAO, S
    YAMAMOTO, M
    TSUDA, T
    KATO, S
    RADIO SCIENCE, 1991, 26 (02) : 417 - 427
  • [23] EFFECT OF RECEIVER ANTENNA ROTATION ON THE ACCURACY OF ACOUSTIC MEASUREMENTS OF SMALL VESSEL DISPLACEMENTS
    VOLOVOV, VI
    KLYUEV, MS
    ACOUSTICAL PHYSICS, 1994, 40 (04) : 505 - 508
  • [24] Zooplankton diel vertical migration in the Corsica Channel (north-western Mediterranean Sea) detected by a moored acoustic Doppler current profiler
    Guerra, Davide
    Schroeder, Katrin
    Borghini, Mireno
    Camatti, Elisa
    Pansera, Marco
    Schroeder, Anna
    Sparnocchia, Stefania
    Chiggiato, Jacopo
    OCEAN SCIENCE, 2019, 15 (03) : 631 - 649
  • [25] The effect of different zooplankton grazing patterns resulting from diel vertical migration on phytoplankton growth and composition: a laboratory experiment
    Elke S. Reichwaldt
    Isabelle D. Wolf
    Herwig Stibor
    Oecologia, 2004, 141 : 411 - 419
  • [26] The effect of different zooplankton grazing patterns resulting from diel vertical migration on phytoplankton growth and composition: a laboratory experiment
    Reichwaldt, ES
    Wolf, ID
    Stibor, H
    OECOLOGIA, 2004, 141 (03) : 411 - 419
  • [27] Effect of the vertical gradients of temperature and wind velocity in the stratosphere on phase fluctuations in radio occultation measurements
    Gurvich, AS
    Fedorova, OV
    Cornblue, L
    IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS, 2004, 40 (02) : 134 - 141
  • [28] Accuracy of Doppler catheter measurements: Effect of inhomogeneous beam power distribution on mean and peak velocity
    Denardo, SJ
    Talbot, L
    Hargrave, VK
    Selfridge, AR
    Ports, TA
    Yock, PG
    JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY, 1997, 29 (02) : 283 - 292
  • [29] The effect of heating on the microstructural evolution of La Peyratte granite deduced from acoustic velocity measurements
    Reuschlé, T
    Haore, SG
    Darot, M
    EARTH AND PLANETARY SCIENCE LETTERS, 2006, 243 (3-4) : 692 - 700
  • [30] Seasonal and ontogenetic variation in diel vertical migration of Chaoborus flavicans and its effect on depth-selection behavior of other zooplankton
    Lagergren, Ragnar
    Leberfinger, Karolina
    Stenson, Jan A. E.
    LIMNOLOGY AND OCEANOGRAPHY, 2008, 53 (03) : 1083 - 1092
12345