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RISOn the Determination of Age of Air Trends from Atmospheric Trace Species
Publisher: American Meteorological Society
Abstract: Trace chemical species have been used in numerical models to calculate the age of air (AOA), which is a measure of the strength of the mean meridional circulation. The trend in the AOA has also been computed and found to ...
Modification of the Gravity Wave Parameterization in the Whole Atmosphere Community Climate Model: Motivation and Results
Publisher: American Meteorological Society
Abstract: he current standard version of the Whole Atmosphere Community Climate Model (WACCM) simulates Southern Hemisphere winter and spring temperatures that are too cold compared with observations. This ?cold-pole bias? leads to ...
On the Southern Hemisphere stratospheric response to ENSO and its impacts on tropospheric circulation
Publisher: American Meteorological Society
Sensitivity of Sudden Stratospheric Warmings to Previous Stratospheric Conditions
Publisher: American Meteorological Society
Abstract: AbstractThe Whole Atmosphere Community Climate Model, version 4 (WACCM4), is used to investigate the influence of stratospheric conditions on the development of sudden stratospheric warmings (SSWs). To this end, targeted ...
Climate Change from 1850 to 2005 Simulated in CESM1(WACCM)
Publisher: American Meteorological Society
Abstract: he NCAR Community Earth System Model (CESM) now includes an atmospheric component that extends in altitude to the lower thermosphere. This atmospheric model, known as the Whole Atmosphere Community Climate Model (WACCM), ...
Evaluating the Relationship between Interannual Variations in the Antarctic Ozone Hole and Southern Hemisphere Surface Climate in Chemistry–Climate Models
Publisher: American Meteorological Society
Abstract: AbstractStudies have recently reported statistically significant relationships between observed year-to-year spring Antarctic ozone variability and the Southern Hemisphere annular mode and surface temperatures in spring?summer. ...