The role of wind in determining the timing of the spring bloom in the Strait of Georgia

被引:59
|
作者
Collins, A. Kathleen [1 ]
Allen, Susan E. [1 ]
Pawlowicz, Rich [1 ]
机构
[1] Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V6T 1Z4, Canada
关键词
JUAN-DE-FUCA; BRITISH-COLUMBIA; PLANKTON DYNAMICS; RIVER DISCHARGE; LIGHT-INTENSITY; NITRATE UPTAKE; CLIMATE-CHANGE; PHYTOPLANKTON; MODEL; SEA;
D O I
10.1139/F09-071
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
A coupled biophysical model of the Strait of Georgia (SoG), British Columbia, Canada, has been developed and successfully predicts the timing of the spring phytoplankton bloom. The physical model is a one-dimensional vertical mixing model, using a K-profile parametrization of the boundary layer, forced with high frequency meteorological data. The biological model includes one phytoplankton class (microphytoplankton) and one nutrient source (nitrate). The spring bloom in the SoG occurs when phytoplankton receive enough light that their growth rates exceed their loss rates. The amount of light that the phytoplankton receive is a function of solar radiation and the depth of mixing. The model was used to determine what physical factors are controlling the phytoplankton losses and the light received by the phytoplankton. Wind was found to control the spring bloom arrival time, with strong winds increasing the mixing-layer depth and delaying the bloom. The amount of incoming solar irradiance, through amount of cloud cover, had a secondary effect. The freshwater input (primarily Fraser River discharge) had an insignificant effect on the timing. Increased freshwater flux increases the buoyancy flux and thus decreases the mixing-layer depth but also increases the strength of the estuarine circulation, increasing the advective loss.
引用
收藏
页码:1597 / 1616
页数:20
相关论文
共 50 条
  • [1] Hindcast of the timing of the spring phytoplankton bloom in the Strait of Georgia, 1968-2010
    Allen, S. E.
    Wolfe, M. A.
    [J]. PROGRESS IN OCEANOGRAPHY, 2013, 115 : 6 - 13
  • [2] Factors controlling the timing of the spring bloom in the Strait of Georgia estuary, British Columbia, Canada
    Yin, KD
    Harrison, PJ
    Goldblatt, RH
    StJohn, MA
    Beamish, RJ
    [J]. CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES, 1997, 54 (09) : 1985 - 1995
  • [3] Slocum Glider Observations during the Spring Bloom in the Strait of Georgia
    Fox, R. D.
    Gower, J. F. R.
    Curran, T. A.
    [J]. OCEANS 2009, VOLS 1-3, 2009, : 2583 - 2591
  • [4] Satellite observations of seeding of the spring bloom in the Strait of Georgia, BC, Canada
    Gower, Jim
    King, Stephanie
    [J]. INTERNATIONAL JOURNAL OF REMOTE SENSING, 2018, 39 (13) : 4390 - 4401
  • [5] Spring bloom in the central Strait of Georgia: Interactions of river discharge, winds and grazing
    Yin, KD
    Harrison, PJ
    Goldblatt, RH
    Beamish, RJ
    [J]. MARINE ECOLOGY PROGRESS SERIES, 1996, 138 (1-3) : 255 - 263
  • [6] Wind Waves in the Strait of Georgia
    Gemmrich, J.
    Pawlowicz, R.
    [J]. ATMOSPHERE-OCEAN, 2020, 58 (02) : 79 - 97
  • [7] Glimpsing the 2020 spring bloom in the Strait of Georgia (Canada) with autonomous ferry-based sensors
    MacNeil, Liam
    Costa, Maycira
    LaRoche, Julie
    [J]. MARINE ECOLOGY PROGRESS SERIES, 2024, 736 : 181 - 187
  • [8] The Malaspina Dragon: A newly-discovered pattern of the early spring bloom in the Strait of Georgia, British Columbia, Canada
    Gower, J.
    King, S.
    Statham, S.
    Fox, R.
    Young, E.
    [J]. PROGRESS IN OCEANOGRAPHY, 2013, 115 : 181 - 188
  • [9] Factors linking Pacific herring (Clupea pallasi) productivity and the spring plankton bloom in the Strait of Georgia, British Columbia, Canada
    Schweigert, J. F.
    Thompson, M.
    Fort, C.
    Hay, D. E.
    Therriault, T. W.
    Brown, L. N.
    [J]. PROGRESS IN OCEANOGRAPHY, 2013, 115 : 103 - 110
  • [10] Impact of advection loss due to wind and estuarine circulation on the timing of the spring phytoplankton bloom in a fjord
    MeganWolfe, A.
    Allen, Susan E.
    Hodal, Michal
    Pawlowicz, Rich
    Hunt, Brian P. V.
    Tommasi, Desiree
    [J]. ICES JOURNAL OF MARINE SCIENCE, 2016, 73 (06) : 1589 - 1609