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RISIntraseasonal Oscillations in the Global Atmosphere. Part II: Southern Hemisphere
Publisher: American Meteorological Society
Abstract: In Part II of this two-part article, we complete the systematic examination of oscillatory modes in the global atmosphere by studying 12 years of 500 mb geopotential heights in the Southern Hemisphere. As in Part I, for ...
Intraseasonal Oscillations in the Global Atmosphere. Part I: Northern Hemisphere and Tropics
Publisher: American Meteorological Society
Abstract: We have examined systematically oscillatory modes in the Northern Hemisphere and in the tropics. The 700 mb heights were used to analyze extratropical oscillations, and the outgoing longwave radiation to study tropical ...
Interdecadal Modulation of the Impact of ENSO on Precipitation and Temperature over the United States
Publisher: American Meteorological Society
Abstract: Data from observations and the Intergovernmental Panel on Climate Change (IPCC) twentieth-century climate change model [phase 3 of the Coupled Model Intercomparison Project (CMIP3)] simulations were analyzed to examine the ...
Alternating Wet and Dry Episodes over California and Intraseasonal Oscillations
Publisher: American Meteorological Society
Abstract: The NCEP?NCAR reanalysis together with the outgoing longwave radiation anomalies (OLRAs) and a gridded daily precipitation over the United States were used to analyze precipitation over California on intraseasonal timescales. ...
Intraseasonal Modulation of Summer Precipitation over North America
Publisher: American Meteorological Society
Abstract: The intraseasonal rainfall variability over North America is examined using singular spectrum analysis (SSA) and composites of outgoing longwave radiation anomalies (OLRAs), 200-hPa divergence and a gridded rainfall dataset ...
Adaptive Filtering and Prediction of Intraseasonal Oscillations
Publisher: American Meteorological Society
Abstract: A statistical model based on the combination of singular spectrum analysis (SSA) and the maximum entropy method (MEM) is applied to monitor and forecast outgoing longwave radiation anomalies (OLRAs) in the intraseasonal ...
The Association between Intraseasonal Oscillations and Tropical Storms in the Atlantic Basin
Publisher: American Meteorological Society
Abstract: Tropical intraseasonal variations in the Pacific are related to the tropical storm activity in the Atlantic basin using outgoing longwave radiation anomalies (OLRAs) and circulation anomalies from the NCEP?NCAR reanalysis. ...
Model-Based Drought Indices over the United States
Publisher: American Meteorological Society
Abstract: Drought indices derived from the North American Land Data Assimilation System (NLDAS) Variable Infiltration Capacity (VIC) and Noah models from 1950 to 2000 are intercompared and evaluated for their ability to classify ...
Ensemble Canonical Correlation Prediction of Surface Temperature over the United States
Publisher: American Meteorological Society
Abstract: The ensemble canonical correlation (ECC) prediction method is used to predict summer (July?September) and winter (January?March) seasonal mean surface temperature (Tsurf) over the United States. The predictors are the ...
Quasi-Stationary States in the Southern Hemisphere
Publisher: American Meteorological Society
Abstract: Pattern correlations between daily anomalies have been used to study the persistence of the Southern Hemisphere circulations. The dataset consists of daily Australian analyses of 500 mb heights and sea level pressure for ...