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A Precipitation Seesaw Mode between Northeast Asia and Siberia in Summer Caused by Rossby Waves over the Eurasian Continent
Publisher: American Meteorological Society
Abstract: There is a dominant seesaw pattern in summertime precipitation between northeast Asia and Siberia. Examined here is a mechanism of the seesaw mode, focusing on quasi-stationary Rossby waves propagating on two upper-tropospheric ...
Superrotation Maintained by Meridional Circulation and Waves in a Venus-Like AGCM
Publisher: American Meteorological Society
Abstract: Fully developed superrotation?60 times faster than the planetary rotation (243 days)?is simulated using a Venus-like atmospheric general circulation model (AGCM). The angular momentum of the superrotation is pumped up by ...
Dynamical Processes Related to the Appearance of Quasi-Stationary Waves on the Subtropical Jet in the Midsummer Northern Hemisphere
Publisher: American Meteorological Society
Abstract: Statistical features of quasi-stationary planetary waves were examined on the subtropical jet in the midsummer Northern Hemisphere by using objectively analyzed data and satellite data. As a result, a quasi-stationary wave ...
Dynamical Processes Related to the Appearance of the Okhotsk High during Early Midsummer
Publisher: American Meteorological Society
Abstract: The authors identified an upper-level pressure anomaly pattern corresponding to the interannual variability of the Okhotsk high in midsummer (late July and early August) as a predominant anomaly pattern in the Northern ...
The Fully Developed Superrotation Simulated by a General Circulation Model of a Venus-like Atmosphere
Publisher: American Meteorological Society
Abstract: Formation and maintenance of the fully developed superrotation in the Venus atmosphere are investigated by using a Center for Climate System Research/National Institute for Environmental Study (CCSR/NIES) Venus-like ...
The Mean Zonal Flow Response to Rossby Wave and Gravity Wave Forcing in the Equatorial Lower Stratosphere: Relationship to the QBO
Publisher: American Meteorological Society
Abstract: Observations show that the westerly acceleration of the equatorial quasi-biennial oscillation (QBO) can be accounted for by Kelvin waves, but that there is a deficiency in the easterly acceleration due to Rossby?gravity ...
Gravity Waves Appearing in a High-Resolution GCM Simulation
Publisher: American Meteorological Society
Abstract: Global characteristics of gravity waves in the lower stratosphere are examined using a GCM with high resolution in both the horizontal (T106, corresponding to about 120 km) and the vertical (?600 m). The bottom boundary ...
Roles of Intraseasonal Disturbances and Diabatic Heating in the East Asian Jet Stream Variabilities Associated with the East Asian Winter Monsoon
Publisher: American Meteorological Society
Abstract: AbstractThis study evaluates the relative importance of diabatic heating and intraseasonal disturbances with regard to the variabilities of the East Asian jet stream (EAJS) associated with the East Asian winter monsoon ...
Transport and Mixing in the Extratropical Tropopause Region in a High-Vertical-Resolution GCM. Part II: Relative Importance of Large-Scale and Small-Scale Dynamics
Publisher: American Meteorological Society
Abstract: The relative roles of atmospheric motions on various scales, from mesoscale to planetary scale, in transport and mixing in the extratropical tropopause region are investigated using a high-vertical-resolution general ...
The Roles of Equatorial Trapped Waves and Internal Inertia–Gravity Waves in Driving the Quasi-Biennial Oscillation. Part I: Zonal Mean Wave Forcing
Publisher: American Meteorological Society
Abstract: The roles of equatorial trapped waves (EQWs) and internal inertia?gravity waves in driving the quasi-biennial oscillation (QBO) are investigated using a high-resolution atmospheric general circulation model with T213L256 ...