نتایج جستجو برای: temporal anomalies in atmosphere circulation patterns thus

تعداد نتایج: 17081674  

2010
E. Di Lorenzo K. M. Cobb J. C. Furtado N. Schneider B. T. Anderson A. Bracco M. A. Alexander D. J. Vimont

Decadal fluctuations of the ocean and atmosphere over the North Pacific Ocean significantly affect the weather and climate of North America and Eurasia. They also cause transitions between different states of marine ecosystems across the Pacific Ocean1–3. An important fraction of North Pacific low-frequency variability is linked to the North Pacific Gyre Oscillation4, a climate pattern associat...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Lu Shen Loretta J Mickley

We develop a statistical model to predict June-July-August (JJA) daily maximum 8-h average (MDA8) ozone concentrations in the eastern United States based on large-scale climate patterns during the previous spring. We find that anomalously high JJA ozone in the East is correlated with these springtime patterns: warm tropical Atlantic and cold northeast Pacific sea surface temperatures (SSTs), as...

2001
François Lott Andrew W. Robertson Michael Ghil

Theoretical work and general circulation model (GCM) experiments suggest that themidlatitude jet stream’s interaction with large-scale topography can drive intraseasonal oscillations in large-scale atmospheric circulation patterns. In support of this theory, we present new observational evidence that mountain-induced torques play a key role in 15–30-day oscillations of the Northern Hemisphere c...

1998
WARREN B. WHITE SHYH-CHIN CHEN RAY G. PETERSON

The Antarctic circumpolar wave (ACW) is a nominal 4-yr climate signal in the ocean–atmosphere system in the Southern Ocean, propagating eastward at an average speed of 6–8 cm s21, composed of two waves taking approximately 8 years to circle the globe. The ACW is characterized by a persistent phase relationship between warm (cool) sea surface temperature (SST) anomalies and poleward (equatorward...

2009
EDWIN P. GERBER GEOFFREY K. VALLIS

The zonal structure and dynamics of the dipolar patterns of intraseasonal variability in the extratropical atmosphere—namely, the North Atlantic Oscillation (NAO) and the so-called annular modes of variability—are investigated in an idealized general circulation model. Particular attention is focused on the relationships linking the zonal structure of the stationary waves, synoptic variability ...

Journal: : 2023

The results of interpretation monitoring observations radon-220 (thoron) and radon-222 observations, carried out in 2002-2004 on the Northern Tien-Shan, are presented. Prognostic capabilities thoron as a short-term earthquakes precursor shown. It is noted that anomalies more contrast comparison with radon-222. Insufficient explained by methodological seismic radon stations. behavior during eart...

2016
Michael C. Veres Qi Hu

In this study, a series of experiments using idealized sea surface temperatures (SST), land and orography are performed to examine the interactions between the Atlantic Multidecadal Oscillation (AMO), continents and major orography. Three sets of experiments are done using an increasingly realistic surface boundary (aqua-planet, land without orography and land with orography) and run using perp...

1999
K. Petzoldt

Total ozone anomalies (deviation from the long-term mean) are created by anomalous circulation patterns. The dynamically produced ozone anomalies can be estimated from known circulation parameters in the layer between the tropopause and the middle stratosphere by means of statistics. Satellite observations of ozone anomalies can be compared with those expected from dynamics. Residual negative a...

2006
MICHELLE L. L’HEUREUX DAVID W. J. THOMPSON

There is increasing evidence indicating that the climate response to variations in the El Niño–Southern Oscillation (ENSO) includes not only thermally forced zonal wind anomalies in the subtropics but also eddy-driven zonal wind anomalies that extend into the mid–high latitudes of both hemispheres. In this study, new insights into the observed seasonally varying signature of ENSO in the extratr...

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