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RISOn the Structure of Variability of the Observed Tropospheric and Stratospheric Zonal-Mean Zonal Wind
Publisher: American Meteorological Society
Abstract: The latitude-height structure of variability of the monthly-mean zonally-averaged zonal wind (?) is objectively documented for the 9-year period (1980?88) during which both ECMWF and NMC global analyses are available. ...
The Annual Warm to Cold Phase Transition in the Eastern Equatorial Pacific: Diagnosis of the Role of Stratus Cloud-Top Cooling
Publisher: American Meteorological Society
Abstract: The forcing of the March to May southerly surface-wind tendency along the equatorial South American coast, which leads to the annual transition of the eastern tropical Pacific basin?s climate from its peak warm phase in ...
On the Adequacy of Meridional Resolution of Linear and Quasi-Linear Barotropic Models
Publisher: American Meteorological Society
Abstract: The minimum meridional resolution needed for an adequate numerical simulation of the linear and ?quasi-linear? baroscopic vorticity dynamics in the vicinity of a critical latitude is determined by using a semi-spectral ...
On the Dynamical Basis for the Asian Summer Monsoon Rainfall-El Niño Relationship
Publisher: American Meteorological Society
Abstract: The dynamical basis for the Asian summer monsoon rainfall-El Niño linkage is explored through diagnostic calculations with a linear steady-state multilayer primitive equation model. The contrasting monsoon circulation ...
Analysis of Atlantic SST Variability Factoring Interbasin Links and the Secular Trend: Clarified Structure of the Atlantic Multidecadal Oscillation
Publisher: American Meteorological Society
Abstract: Atlantic SST variability in the twentieth century is analyzed factoring the influence of natural SST variability in the Pacific basin and the secular change in global SSTs. The tropical and northern extratropical basins ...
A Subseasonal Teleconnection Analysis: PNA Development and Its Relationship to the NAO
Publisher: American Meteorological Society
Abstract: he Pacific?North American (PNA) teleconnection is a major mode of Northern Hemisphere wintertime climate variability, with well-known impacts on North American temperature and precipitation. To assess whether the PNA ...
Evolution Dynamics of Tropical Ocean-Atmosphere Annual Cycle Variability
Publisher: American Meteorological Society
Abstract: The structure of ocean-atmosphere annual cycle variability is extracted from the revised Comprehensive Ocean-Atmosphere Data Set SSTs, surface winds, and the latent heat (LH) and net shortwave (SW) surface fluxes using the ...
Asian Summer Monsoon—ENSO Feedback on the Cane–Zebiak Model ENSO
Publisher: American Meteorological Society
Abstract: The Asian summer monsoon heating anomalies are parameterized in terms of the concurrent ENSO SST anomalies and used as additional forcing in the Cane?Zebiak (CZ) Pacific ocean?atmosphere anomaly model. The Asian heating ...
ENSO Evolution and Teleconnections in IPCC’s Twentieth-Century Climate Simulations: Realistic Representation?
Publisher: American Meteorological Society
Abstract: This study focuses on the assessment of the spatiotemporal structure of ENSO variability and its winter climate teleconnections to North America in the Intergovernmental Panel on Climate Change?s (IPCC) Fourth Assessment ...
Modeling of Regional Hydroclimate Change over the Indian Subcontinent: Impact of the Expanding Thar Desert
Publisher: American Meteorological Society
Abstract: he Thar Desert between northwestern India and Pakistan is the most densely populated desert region in the world, and the vast surrounding areas are affected by rapid soil degradation and vegetation loss. The impact of an ...