Interdecadal Variations in Northern Hemisphere Winter Storm Track Intensity
نویسندگان
چکیده
منابع مشابه
Skewness modes in the Northern Hemisphere winter
The probability distribution of daily Northern Hemisphere streamfunction fluctuations at 500 hPa in winter is skewed at most locations. Large positive anomalies are more likely north of 50N with maximum values of the skewness in the North Pacific and North Atlantic region. In this study we develop two novel methodologies in order to diagnose the underlying circulation structures associated with...
متن کاملNorthern hemisphere winter storm tracks of the Eemian interglacial and the last glacial inception
Climate simulations of the Eemian interglacial and the last glacial inception have been performed by forcing a coupled ocean-atmosphere general circulation model with insolation patterns of these periods. The parameters of the Earth’s orbit have been set to conditions of 125 000 and 115 000 years before present (yr BP). Compared to today, these dates represent periods with enhanced and weakened...
متن کاملSolar forcing of winter climate variability in the Northern Hemisphere
An influence of solar irradiance variations on Earth’s surface climate has been repeatedly suggested, based on correlations between solar variability and meteorological variables1. Specifically, weaker westerly winds have been observed in winters with a less active sun, for example at the minimum phase of the 11-year sunspot cycle2–4. With some possible exceptions5,6, it has proved difficult fo...
متن کاملStorm Track Dynamics
This paper reviews the current state of observational, theoretical, and modeling knowledge of the midlatitude storm tracks of the Northern Hemisphere cool season. Observed storm track structures and variations form the first part of the review. The climatological storm track structure is described, and the seasonal, interannual, and interdecadal storm track variations are discussed. In particul...
متن کاملstorm track dynamics in anomalous winter 2007-2008 from energetic perspective
climatological study of the mid-latitude storm tracks was investigated using the daily global forecast system (gfs) and the national centers for environmental prediction (ncep) reanalysis data sets from 1948 to 2008 winter seasons. in anomalous winter 2007-2008, decreasing of eddy kinetic energy along with the reduction of eddy available potential energy upstream of atlantic storm track are rel...
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ژورنال
عنوان ژورنال: Journal of Climate
سال: 2002
ISSN: 0894-8755,1520-0442
DOI: 10.1175/1520-0442(2002)015<0642:ivinhw>2.0.co;2