期刊
GEOPHYSICAL RESEARCH LETTERS
卷 40, 期 3, 页码 541-546出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/grl.50100
关键词
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资金
- PRBO Conservation Science on the Farallon National Wildlife Refuge
- US Fish and Wildlife Service
- NOAA's Fisheries and the Environment (FATE) program
- NOAA's California Current Integrated Ecosystem Assessment
- National Science Foundation [0929017]
- Directorate For Geosciences
- Division Of Ocean Sciences [0929017, 1339251] Funding Source: National Science Foundation
Variations in large-scale atmospheric forcing influence upwelling dynamics and ecosystem productivity in the California Current System (CCS). In this paper, we characterize interannual variability of the North Pacific High over 40 years and investigate how variation in its amplitude and position affect upwelling and biology. We develop a winter upwelling pre-conditioning index and demonstrate its utility to understanding biological processes. Variation in the winter NPH can be well described by its areal extent and maximum pressure, which in turn is predictive of winter upwelling. Our winter pre-conditioning index explained 64% of the variation in biological responses (fish and seabirds). Understanding characteristics of the NPH in winter is therefore critical to predicting biological responses in the CCS. Citation: Schroeder, I. D., B. A. Black, W. J. Sydeman, S. J. Bograd, E. L. Hazen, J. A. Santora, and B. K. Wells (2013), The North Pacific High and wintertime pre-conditioning of California current productivity, Geophys. Res. Lett., 40, 541-546, doi:10.1002/grl.50100.
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