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RISThe Termination of the 1997–98 El Niño. Part II: Mechanisms of Atmospheric Change
Publisher: American Meteorological Society
Abstract: The mechanisms that drove zonal wind stress (τx) changes in the near-equatorial Pacific at the end of the extreme 1997?98 El Niño event are explored using a global atmospheric general circulation model. The analysis focuses ...
North Atlantic Power Dissipation Index (PDI) and Accumulated Cyclone Energy (ACE): Statistical Modeling and Sensitivity to Sea Surface Temperature Changes
Publisher: American Meteorological Society
Abstract: his study focuses on the statistical modeling of the power dissipation index (PDI) and accumulated cyclone energy (ACE) for the North Atlantic basin over the period 1949?2008, which are metrics routinely used to assess ...
Projected Increases in North Atlantic Tropical Cyclone Intensity from CMIP5 Models
Publisher: American Meteorological Society
Abstract: ropical cyclones?particularly intense ones?are a hazard to life and property, so an assessment of the changes in North Atlantic tropical cyclone intensity has important socioeconomic implications. In this study, the authors ...
Multiseason Lead Forecast of the North Atlantic Power Dissipation Index (PDI) and Accumulated Cyclone Energy (ACE)
Publisher: American Meteorological Society
Abstract: y considering the intensity, duration, and frequency of tropical cyclones, the power dissipation index (PDI) and accumulated cyclone energy (ACE) are concise metrics routinely used to assess tropical storm activity. This ...
Contribution of Tropical Cyclones to Rainfall at the Global Scale
Publisher: American Meteorological Society
Abstract: AbstractThis study quantifies the relative contribution of tropical cyclones (TCs) to annual, seasonal, and extreme rainfall and examines the connection between El Niño?Southern Oscillation (ENSO) and the occurrence of ...
On Estimates of Historical North Atlantic Tropical Cyclone Activity
Publisher: American Meteorological Society
Abstract: In this study, an estimate of the expected number of Atlantic tropical cyclones (TCs) that were missed by the observing system in the presatellite era (between 1878 and 1965) is developed. The significance of trends in ...
Submonthly Indian Ocean Cooling Events and Their Interaction with Large-Scale Conditions
Publisher: American Meteorological Society
Abstract: The Indian Ocean exhibits strong variability on a number of time scales, including prominent intraseasonal variations in both the atmosphere and ocean. Of particular interest is the south tropical Indian Ocean thermocline ...
Thermodynamic and Dynamic Mechanisms for Large-Scale Changes in the Hydrological Cycle in Response to Global Warming
Publisher: American Meteorological Society
Abstract: The mechanisms of changes in the large-scale hydrological cycle projected by 15 models participating in the Coupled Model Intercomparison Project phase 3 and used for the Intergovernmental Panel on Climate Change?s Fourth ...
The Influence of the Madden–Julian Oscillation on Precipitation in Oregon and Washington
Publisher: American Meteorological Society
Abstract: The Madden?Julian oscillation (MJO) is the primary mode of large-scale intraseasonal variability in the Tropics. Previous work has explored the influences of the MJO on atmospheric circulation anomalies over the North ...
Tropical Pacific Sea Surface Temperature Anomalies, El Niño, and Equatorial Westerly Wind Events
Publisher: American Meteorological Society
Abstract: The authors examine global statistical relationships between westerly wind events (WWEs) and sea surface temperature anomaly (SSTA) variability, using a compositing technique for the period 1986?98. The authors describe ...