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RISInfluences of ENSO SST Anomalies and Winter Storm Tracks on the Interannual Variability of Upper-Troposphere Water Vapor over the Northern Hemisphere Extratropics
Publisher: American Meteorological Society
Abstract: This study examines the interannual variability of winter upper-troposphere water vapor over the Northern Hemisphere using the National Aeronautics and Space Administration Water Vapor Project, the International Satellite ...
Winter Monthly Mean Atmospheric Anomalies over the North Pacific and North America Associated with El Niño SSTs
Publisher: American Meteorological Society
Abstract: The characteristics of winter monthly mean extratropical circulation associated with El Niño, including precipitation and surface temperature over the United States, are examined for nine El Niño events during 1950?94. ...
Transition of the Large-Scale Atmospheric and Land Surface Conditions from the Dry to the Wet Season over Amazonia as Diagnosed by the ECMWF Re-Analysis
Publisher: American Meteorological Society
Abstract: Using 15-yr instantaneous European Centre for Medium-Range Weather Forecasts Re-Analysis (ERA) data, the authors have examined the large-scale atmospheric conditions and the local surface fluxes through the transition ...
Influence of Cross-Andes Flow on the South American Low-Level Jet
Publisher: American Meteorological Society
Abstract: By analyzing the 15-yr (1979?93) reanalysis data of the European Centre for Medium-Range Weather Forecasts (ECMWF), it has been found that the seasonal and synoptic time-scale variations of the South American low-level ...
Influence of Cold Air Intrusions on the Wet Season Onset over Amazonia
Publisher: American Meteorological Society
Abstract: Using 15-yr data from the European Centre for Medium-Range Weather Forecasts Re-Analysis (ERA-15), the authors found that rapid southeastward expansion of the rainy area from the western Amazon to southeastern Brazil is a ...
Cross-Equatorial Flow and Seasonal Cycle of Precipitation over South America
Publisher: American Meteorological Society
Abstract: The relationship between South American precipitation and cross-equatorial flow over the western Amazon is examined using the 15-yr (1979?93) European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis dataset. ...
The Influence of Amazon Rainfall on the Atlantic ITCZ through Convectively Coupled Kelvin Waves
Publisher: American Meteorological Society
Abstract: Using outgoing longwave radiation (OLR) and Tropical Rainfall Measuring Mission (TRMM) daily rain-rate data, systematic changes in intensity and location of the Atlantic intertropical convergence zone (ITCZ) were detected ...
A Satellite Analysis of Deep Convection, Upper-Tropospheric Humidity, and the Greenhouse Effect
Publisher: American Meteorological Society
Abstract: This paper combines satellite measurements of the upwelling 6.7-?m radiance from TOVS with cloud-property information from ISCCP and outgoing longwave radiative fluxes from ERBE to analyze the climatological interactions ...
How Do Atmosphere and Land Surface Influence Seasonal Changes of Convection in the Tropical Amazon?
Publisher: American Meteorological Society
Abstract: Although the wet season in the tropical Amazon (10°N?20°S) at any one place and in any one year is initiated rapidly by synoptic systems, large-scale thermodynamic conditions modulate the frequency and intensity of these ...
Moisture and energy budget perspectives on summer drought in North China
Publisher: American Meteorological Society
Abstract: We investigate the physical processes behind summer drought in North China by evaluating moisture and energy budget diagnostics and linking them to anomalous large-scale circulation patterns. Moisture budget analysis reveals ...