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RISSensitivity of Simulated Summertime Precipitation over the Western United States to Different Physics Parameterizations
Publisher: American Meteorological Society
Abstract: This paper investigates the effect of different physics parameterizations on summertime precipitation as simulated by the Pennsylvania State University-National Center for Atmospheric Research (NCAR) Mesoscale Model (MM4). ...
An Approach for the Representation of Surface Heterogeneity in Land Surface Models. Part I: Theoretical Framework
Publisher: American Meteorological Society
Abstract: In this paper, a theoretical framework is described for the representation of surface heterogeneity within complex biophysical surface schemes for use in climate models. The methodology adopts aspects of the mosaic approach ...
An Approach for the Representation of Surface Heterogeneity in Land Surface Models. Part II: Validation and Sensitivity Experiments
Publisher: American Meteorological Society
Abstract: This paper discusses a series of sensitivity experiments aimed at testing the surface heterogeneity representation proposed in the companion paper by Giorgi. When driven by observed climatic forcings at three locations and ...
A Simple Equation for Regional Climate Change and Associated Uncertainty
Publisher: American Meteorological Society
Abstract: Simple equations are developed to express regional climate changes for the twenty-first century and associated uncertainty in terms of the global temperature change (GTC) without a dependence on the underlying emission ...
Simulation of Regional Climate Using a Limited Area Model Nested in a General Circulation Model
Publisher: American Meteorological Society
Abstract: A Limited Area Model (LAM) is nested in a General Circulation Model (GCM) to simulate the January climate over the western United States. In the nesting procedure, the GCM output is used to provide the initial and lateral ...
The Effects of Domain Choice on Summer Precipitation Simulation and Sensitivity in a Regional Climate Model
Publisher: American Meteorological Society
Abstract: Recent results show disagreement between global and limited-area models as to the role of soil moisture feedback during the summer of 1993 in the central United States. July precipitation totals increase by 50% in the ...
The Climatological Skill of a Regional Model over Complex Terrain
Publisher: American Meteorological Society
Abstract: As part of an ongoing study of the regional climate and hydrology of the southwestern United States, in this paper we investigate the systematic biases of two versions of the PSU/NCAR mesoscale model (MM4). These are a ...
A Investigation of the Sensitivity of Simulated Precipitation to Model Resolution and Its Implications for Climate Studies
Publisher: American Meteorological Society
Abstract: This paper examines the sensitivity of a regional atmospheric model to horizontal resolution and topographic forcing. The model is run for January and July month-long simulations over the European region at gridpoint ...
Calculation of Average, Uncertainty Range, and Reliability of Regional Climate Changes from AOGCM Simulations via the “Reliability Ensemble Averaging” (REA) Method
Publisher: American Meteorological Society
Abstract: The ?reliability ensemble averaging? (REA) method for calculating average, uncertainty range, and a measure of reliability of simulated climate changes at the subcontinental scale from ensembles of different atmosphere?ocean ...
Effects of a Subgrid-Scale Topography and Land Use Scheme on the Simulation of Surface Climate and Hydrology. Part I: Effects of Temperature and Water Vapor Disaggregation
Publisher: American Meteorological Society
Abstract: A mosaic-type parameterization of subgrid-scale topography and land use is implemented within the framework of a regional climate model, and its effects on a multiseasonal simulation over the European region are tested, ...