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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Implications of Allee effects for fisheries management in a changing climate: evidence from Atlantic cod.
TL;DR: It is found that in presence of the Allee effect, a fishing moratorium is only sufficient for recovery when sea surface temperature rise remains within 2 °C and fishing is restricted within 15 years, and even immediate banning of fishing is not sufficient anymore to guarantee recovery.
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Ecological changes with minor effect initiate evolution to delayed regime shifts.
TL;DR: It is shown that, even though changing ecological conditions are not enough to induce an immediate regime shift in the system, selection-induced evolutionary responses acting on a phenotypic trait may eventually cause a regime shift by pushing the system beyond a tipping point after a substantial delay.
Interannual and interdecadal variations of tropical cyclone activity in the South China Sea
TL;DR: In this article, the authors identify the factors affecting annual tropical cyclone activity in the South China Sea (SCSCC) using data during the period 1965-2005, and find that the total number of TCs and number of TCLs entering the SCS from the Western North Pacific are below normal in El Nino events but above normal during La Nina events.
Journal ArticleDOI
Long-term changes in kelp forests in an inner basin of the Salish Sea
Helen Berry,Tom Mumford,Bart Christiaen,Pete Dowty,Max Calloway,Lisa Ferrier,Eric E. Grossman,Nathan R. vanArendonk +7 more
TL;DR: In this paper, the authors examined distribution of the bull kelp Nereocystis luetkeana over 145 years in South Puget Sound (SPS), a semi-protected inner basin in a fjord estuary complex in the northeast Pacific Ocean.
Influence of Climate Shifts on Decadal Variations of Surface Solar Radiation in Alaska
TL;DR: In this article, the authors examined the variations in surface solar radiation before and after 1976 during the period 1961-2005 and found that the greatest changes occurred in the southeast region in winter with a significant rise of 1.67% yr−1 during 1961-1975 before the shift and a nonsignificant decline of −1.07% yr −1 during 1977-1991 after the shift.
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.