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Anomalous satellite-measured chlorophyll concentrations in the northern California Current in 2001-2002 公开 Deposited

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https://ir.library.oregonstate.edu/concern/articles/qj72p8989

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Abstract
  • Five years (1997–2002) of northern California Current SeaWiFS ocean color data put cold, low salinity hydrographic anomalies observed in summer 2002 into a spatial/temporal context and present their biological ramifications. Monthly mean chlorophyll concentrations were >1.0 mg m–3 larger than the previous 3 year average over the entire shelf from British Columbia (BC) to northern California (CA) in 2001–2002, spatially most extensive over the BC and Washington (WA) shelves but strongest (>2.0 mg m–3) on the southern Oregon shelf. Positive anomalies develop in August 2001 off BC and October 2001 off WA. By October 2002, shelf anomalies are reduced. Offshore, spatially extensive anomalies develop off CA (36º–42ºN) in fall 2002, disappearing by December. Concurrent altimeter data show over 1000km of equatorward displacement. The positive chlorophyll anomalies, their spatial patterns and displacement are consistent with advection of subarctic, nutrient-enriched water into the California Current.
  • Keywords: Descriptive and regional oceanography, Eastern boundary currents, Climate and interannual variability
  • Keywords: Descriptive and regional oceanography, Eastern boundary currents, Climate and interannual variability
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Citation
  • Thomas, A. C., Strub, P. T. and Brickley, P., 2003, Anomalous satellite-measured chlorophyll concentrations in the northern California Current in 2001-2002: Geophys. Res. Lett., v. 30(15), 8022, doi:10.1029/2003GL017409.
Journal Title
Journal Volume
  • 30
Journal Issue/Number
  • 15
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Funding Statement (additional comments about funding)
  • This work was funded by NASA grants NAG5-6558 and 6604 and NASA-NSF grant 0000899 (U.S. GLOBEC program) to ACT and NASANSF 0000900 (U.S. GLOBEC program) and NASA JPL 1206714 to PTS. This is contribution number 383 of the U.S. GLOBEC program, jointly funded by NSF and NOAA.
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  • 0094-8276

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