Search
Now showing items 1-10 of 10
Effect of Ageostrophic Vorticity and Temperature Advection on Lower-Tropospheric Vertical Motions in a Strong Extratropical Cyclone
Publisher: American Meteorological Society
Abstract: The impact of ageostrophic vorticity and temperature advection on vertical motions in a strong extratropical cyclone is studied by comparing the contribution of the two advection terms in the generalized omega equation to ...
CO2-Induced Changes in Atmospheric Angular Momentum in CMIP2 Experiments
Publisher: American Meteorological Society
Abstract: The response of atmospheric angular momentum to a gradual doubling of CO2 is studied using 16 model experiments participating in the second phase of the Coupled Model Intercomparison Project (CMIP2). The relative angular ...
Factors Affecting Synoptic-Scale Vertical Motions: A Statistical Study Using a Generalized Omega Equation
Publisher: American Meteorological Society
Abstract: Processes affecting synoptic-scale vertical motions are investigated using as the main tool a generalized omega equation that assumes only hydrostatic balance. This equation and the adiabatic quasigeostrophic (QG) omega ...
Height Tendency Diagnostics Using a Generalized Omega Equation, the Vorticity Equation, and a Nonlinear Balance Equation
Publisher: American Meteorological Society
Abstract: Height tendency dynamics are studied with a system consisting of a generalized omega equation, the vorticity equation, and a nonlinear balance equation. By using the first two equations, vorticity tendency is first partitioned ...
CO2-Induced Changes in Interannual Temperature and Precipitation Variability in 19 CMIP2 Experiments
Publisher: American Meteorological Society
Abstract: CO2-induced changes in the interannual variability of monthly surface air temperature and precipitation are studied using 19 model experiments participating in the second phase of the Coupled Model Intercomparison Project ...
CO2-Induced Climate Change in CMIP2 Experiments: Quantification of Agreement and Role of Internal Variability
Publisher: American Meteorological Society
Abstract: CO2-induced changes in surface air temperature, precipitation, and sea level pressure are compared between model experiments participating in the second phase of the Coupled Model Intercomparison Project (CMIP2). A statistical ...
CO2- and Aerosol-Induced Changes in Vertically Integrated Zonal Momentum Budget in a GCM Experiment
Publisher: American Meteorological Society
Abstract: The German Climate Computing Center recently conducted a model experiment in which separate runs simulate the climatic response to increasing CO2 alone and to increasing CO2 together with direct radiative forcing by sulfate ...
A Probability and Decision-Model Analysis of a Multimodel Ensemble of Climate Change Simulations
Publisher: American Meteorological Society
Abstract: Because of the inherent uncertainties in the computational representation of climate and because of unforced chaotic climate variability, it is argued that climate change projections should be expressed in probabilistic ...
How Much Should Climate Model Output Be Smoothed in Space?
Publisher: American Meteorological Society
Abstract: The general decrease in the quality of climate model output with decreasing scale suggests a need for spatial smoothing to suppress the most unreliable small-scale features. However, even if correctly simulated, a large-scale ...
Statistical Learning Methods as a Basis for Skillful Seasonal Temperature Forecasts in Europe
Publisher: American Meteorological Society
Abstract: AbstractA statistical learning approach to produce seasonal temperature forecasts in western Europe and Scandinavia was implemented and tested. The leading principal components (PCs) of sea surface temperature (SST) and ...