Journal ArticleDOI
Empirical evidence for North Pacific regime shifts in 1977 and 1989
Steven R. Hare,Nathan J. Mantua +1 more
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In this paper, the authors used 100 environmental time series, 31 climatic and 69 biological, to determine if there is evidence for common regime signals in the 1965-1997 period of record.About:
This article is published in Progress in Oceanography.The article was published on 2000-10-01. It has received 1500 citations till now. The article focuses on the topics: Regime shift & Marine ecosystem.read more
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Spatial-temporal scales of synchrony in marine zooplankton biomass and abundance patterns: A world-wide comparison
TL;DR: In this paper, the authors examined the spatial scales of coherent temporal synchrony in the Humboldt Current, California Current and Kuroshio ecosystems of the Pacific and found that the scales of synchrony of annual zooplankton biomass anomalies in these ecosystems are much too small to be directly causal of the basin-scale (7000-15,000 km) synchrony exhibited by sardine and/or anchovy populations.
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Seasonal, interannual and event scale variation in North Pacific ecosystems
TL;DR: In this paper, the authors synthesize information on changes in ecosystems of the North Pacific at seasonal, interannual, and event time scales, and compare time series of zooplankton at selected spatial sites at which sampling resolution is sufficient to describe seasonal biomass/abundance patterns, and where multiple years of data exist to examine inter-annual variability.
Journal ArticleDOI
Adaptive classification of marine ecosystems: Identifying biologically meaningful regions in the marine environment
Edward J. Gregr,Karin M. Bodtker +1 more
TL;DR: In this article, the authors quantitatively bounded biologically meaningful marine regions in the North Pacific Ocean based on physical oceanography and identified the regions by applying image classification algorithms to a comprehensive description of the ocean's surface, derived from an oceanographic circulation model.
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Improvement of Juvenile Pacific Salmon Production in a Regional Ecosystem after the 1998 Climatic Regime Shift
TL;DR: The change to a more productive regime for juvenile Pacific salmon was a lagged response to an abrupt change in climate in 1998, as shown by regional, basin-scale, and planetary indices.
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Resilience and stability of a pelagic marine ecosystem.
Martin Lindegren,Martin Lindegren,David M. Checkley,Mark D. Ohman,J. Anthony Koslow,Ralf Goericke +5 more
TL;DR: It is argued that functional complementarity is the primary mechanism reducing community variability and promoting resilience and stability in the SCCS.
References
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A Pacific interdecadal climate oscillation with impacts on salmon production
TL;DR: In this article, the authors identify a robust, recurring pattern of ocean-atmosphere climate variability centered over the midlatitude North Pacific basin over the past century, the amplitude of this climate pattern has varied irregularly at interannual-to-interdecadal timescales.
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The Arctic oscillation signature in the wintertime geopotential height and temperature fields
TL;DR: The Arctic Oscillation (AO) as mentioned in this paper is the signature of modulations in the strength of the polar vortex aloft, and it resembles the NAO in many respects; but its primary center of action covers more of the Arctic, giving it a more zonally symmetric appearance.
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Teleconnections in the Geopotential Height Field during the Northern Hemisphere Winter
John M. Wallace,David S. Gutzler +1 more
TL;DR: In this paper, a review of existing literature on the subject reveals the existence of at least four such patterns: the North Atlantic and North Pacific Oscillations identified by Walker and Bliss (1932), a zonally symmetric seesaw between sea level pressures in polar and temperature latitudes, first noted by Lorenz (1951), and what we will refer to as the Pacific/North American pattern, which has been known to operational long-range forecasters in this country since the 1950's.
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Statistical Analysis in Climate Research
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Classification, seasonality and persistence of low-frequency atmospheric circulation patterns
TL;DR: In this article, Orthogonally rotated principle component analysis (RPCA) was used to identify and describe the seasonality and persistence of the major modes of interannual variability.