منابع مشابه
North Pacific Decadal Climate Variability since 1661
Climate in the North Pacific and North American sectors has experienced interdecadal shifts during the twentieth century. A network of recently developed tree-ring chronologies for Southern and Baja California extends the instrumental record and reveals decadal-scale variability back to 1661. The Pacific decadal oscillation (PDO) is closely matched by the dominant mode of tree-ring variability ...
متن کاملMagellan II LFA
of paper presented at the Joint Statistical Meetings, Dallas, August 9-13,1998. Naomi S. Altman, Chair, Dept. of Biometrics, 434 Warren Hall, Cornell University, Ithaca, NY 4853-7801 ([email protected]); C. Clark, Director, ([email protected]); K. Fristrup, Asst. Director ([email protected]), and K. Dunsmore, Research Asst. Bioacoustics Research Program, Cornell University, Ithaca,...
متن کاملPacific Interdecadal Climate Variability: Linkages between the Tropics and the North Pacific during Boreal Winter since 1900
This study examines the tropical linkages to interdecadal climate fluctuations over the North Pacific during boreal winter through a comprehensive and physically based analysis of a wide variety of observational datasets spanning the twentieth century. Simple difference maps between epochs of high sea level pressure over the North Pacific (1900–24 and 1947–76) and epochs of low pressure (1925–4...
متن کاملTracking the extent of the South Pacific Convergence Zone since the early 1600s
[1] The South Pacific Convergence Zone (SPCZ) is the largest and most persistent spur of the Intertropical Convergence Zone. At the southeastern edge of the SPCZ near 170 W and 15 –20 S a surface ocean salinity frontal zone exists that separates fresher Western Pacific Warm Pool water from saltier and cooler waters in the east. This salinity front is known to shift east and west with the phase ...
متن کاملThe Giant Magellan Telescope Phasing System
The 25 m Giant Magellan Telescope consists of seven circular 8.4 m primary mirror segments with matching segmentation of the Gregorian secondary mirror. Achieving the diffraction limit in the adaptive optics observing modes will require equalizing the optical path between pairs of segments to a small fraction of the observing wavelength. This is complicated by the fact that primary mirror segme...
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ژورنال
عنوان ژورنال: Hispanic American Historical Review
سال: 1984
ISSN: 0018-2168,1527-1900
DOI: 10.1215/00182168-64.2.374