Simulations of Karenia Brevis on the West Florida Shelf
Abstract
The ecological model, HABSIM, was developed and tested to examine the initiation and maintenance of red tides of the toxic dinoflagellate Karenia brevis on the West Florida shelf (WFS). Phytoplankton competition among K. brevis, nitrogen fixing cyanophytes (Trichodesmium spp.), large siliceous phytoplankton (diatoms), and small non-siliceous phytoplankton (microflagellates) thus explores the sequence of events required to support the observed bloom from August to December 2001. The ecological model contains twenty two state variables within four submodels: atmospheric (iron deposition), biological (phytoplankton, bacteria, zooplankton, and fish), chemical (multiple species of carbon, nitrogen, phosphorus, silica, and iron), and benthic (nutrient regeneration). Here, we present results for the 2001 1-d hindcast simulations, with and without data assimilation of the Karenia state variable, as well as preliminary 3-d results.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2010
- Bibcode:
- 2010AGUFMOS51C1331L
- Keywords:
-
- 4255 OCEANOGRAPHY: GENERAL / Numerical modeling;
- 4260 OCEANOGRAPHY: GENERAL / Ocean data assimilation and reanalysis;
- 4815 OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL / Ecosystems;
- structure;
- dynamics;
- and modeling;
- 4855 OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL / Phytoplankton