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David Timothy
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Email: David.Timothy@dfo-mpo.gc.ca
Phone: (250) 363-8813
Fax: (250) 363-6746
Region: Pacific
Office: Institute of Ocean Sciences

Field(s) of Research:
  • Physical Oceanography
Research Description:
I am currently working on the Canadian SOLAS project with C.S. Wong to describe new production and CO2 flux at the air-sea interface from satellite imagery of the North Pacific Ocean. I am also involved in data analysis of a recent iron enrichment experiment (SERIES) near Station Papa in the sub-arctic North Pacific gyre, and am helping with the ongoing sediment-trap time series occurring at Station Papa. Prior to arriving at IOS, my research focused on rates and mechanisms of remineralization of organic matter and biogenic silica; nutrient cycling; relationships between plankton ecology and material export from surface waters; use of stable isotopes of carbon and nitrogen to interpret present and past oceanic conditions; anoxic basins; and coastal oceanography.

Publications:
  1. Carbon flux, distribution and budget with special reference to the fugacity of carbon dioxide (fCO2) in the SERIES iron fertilization experiment
  2. The effects of patch expansion on budgets of C, N and Si for the Subarctic Ecological Response to Iron Enrichment Study (SERIES)
  3. Organic matter remineralisation and biogenic silica dissolution in a deep fjord in British Columbia, Canada: a regression analysis of upper ocean sediment-trap flux
  4. Southern Ocean iron enrichment experiment: carbon cycling in high- and low-Si waters
  5. Research challenges at the land/water interface
  6. Settling fluxes in Saanich and Jervis Inlets, British Columbia, Canada: sources and seasonal patterns
  7. Bottom water renewal in the Santa Barbara Basin
  8. Primary production and deep-water oxygen content of two British Columbian fjords
  9. Excess sedimentation along the Equator in the Western Pacific
  10. Seasonal and interannual variability in particle fluxes of carbon, nitrogen and silicon from time series of sediment traps at Ocean Station P, 1982-1993: relationship to changes in subarctic primary productivity
  11. Systematics of variations in excess Al and Al/Ti in sediments from the central equatorial Pacific
  12. Describing additional fluxes to deep sediment traps and water-column decay in a coastal environment
  13. A technical report on phytoplankton growth in Kyuquot Sound