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RISHow Physical Parameterizations Can Modulate Internal Variability in a Regional Climate Model
Publisher: American Meteorological Society
Abstract: he authors analyze to what extent the internal variability simulated by a regional climate model is sensitive to its physical parameterizations. The influence of two convection schemes is quantified over southern Africa, ...
The Southern Annular Mode Seen through Weather Regimes
Publisher: American Meteorological Society
Abstract: his article investigates the prominent features of the Southern Hemisphere (south of 20°S) atmospheric circulation when extracted using EOF analysis and a k-means clustering algorithm. The focus is on the southern annular ...
Observed Changes in the Lifetime and Amplitude of the Madden–Julian Oscillation Associated with Interannual ENSO Sea Surface Temperature Anomalies
Publisher: American Meteorological Society
Abstract: The Madden?Julian oscillation (MJO) is analyzed using the reanalysis zonal wind? and satellite outgoing longwave radiation?based indices of Wheeler and Hendon for the 1974?2005 period. The average lifetime of the MJO events ...
Characterization of Heat Waves in the Sahel and Associated Physical Mechanisms
Publisher: American Meteorological Society
Abstract: AbstractGreat effort is made to address heat waves (HWs) in developed countries because of their devastating impacts on society, economy, and environment. However, HWs are still understudied over developing countries. This ...
Implication of the Madden–Julian Oscillation in the 40-Day Variability of the West African Monsoon
Publisher: American Meteorological Society
Abstract: Madden?Julian oscillations (MJOs) are extracted over the Indo-Pacific basin using a local mode analysis. The convective perturbations are then projected over a larger domain to evaluate their remote consequences over the ...
How do Tropical Temperate Troughs Form and Develop over Southern Africa?
Publisher: American Meteorological Society
Abstract: his paper aims at separating the respective influences of tropical and midlatitude variability on the development and life cycle of tropical temperate troughs (TTTs) over southern Africa in austral summer (November?February). ...
CORRIGENDUM
Publisher: American Meteorological Society
Regionalizing Rainfall at Very High Resolution over La Réunion Island Using a Regional Climate Model
Publisher: American Meteorological Society
Abstract: egional climate models (RCMs) should be evaluated with respect to their ability to downscale large-scale climate information to the local scales, which are sometimes strongly modulated by surface conditions. This is the ...
Regionalizing Rainfall at Very High Resolution over La Réunion Island: A Case Study for Tropical Cyclone Ando
Publisher: American Meteorological Society
Abstract: nsemble simulations of Tropical Cyclone (TC) Ando (31 December 2000?9 January 2001) are performed over the southwest Indian Ocean using the nonhydrostatic WRF Model. Nested domains centered over the island of La Réunion ...
From Synoptic to Interdecadal Variability in Southern African Rainfall: Toward a Unified View across Time Scales
Publisher: American Meteorological Society
Abstract: AbstractDuring the austral summer season (November?February), southern African rainfall, south of 20°S, has been shown to vary over a range of time scales, from synoptic variability (3?7 days, mostly tropical temperate ...