Evaluating Parameterizations in General Circulation Models: Climate Simulation Meets Weather Prediction
نویسندگان
چکیده
منابع مشابه
Optimizing Computations in Weather and Climate Prediction Models
To meet the challenge of developing a comprehensive weather and climate prediction model which can give realistic scenarios for many time scales, more computer power than is currently available will be needed. One possibility for alleviating this shortcoming is to increase the integration timestep. We propose and test several methods which may prove useful. One procedure is an expansion of the ...
متن کاملTransient Climate Response in Coupled Atmospheric–Ocean General Circulation Models
The equilibrium climate sensitivity (ECS) has a large uncertainty range among models participating in the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) and has recently been presented as ‘‘inherently unpredictable.’’ One way to circumvent this problem is to consider the transient climate response (TCR). However, the TCR among AR4 models also differs by more tha...
متن کاملA NEW PARADIGM fOR PARAMETERIZATIONS IN NUMERICAL WEATHER PREDICTION AND OTHER ATMOSPHERIC MODELS
The use of look-up-tables (LUTs) to represent parameterizations within numerical weather prediction and other atmospheric models is presented. We discuss several approaches as to how the use of LUTs can be optimized in order to retain the physical representation of the parameterization, yet be much more computationally efficient than the parent parameterization from which they are derived. tras...
متن کاملSimulation of Climate by a Global General Circulation Model
The primitive equations of motion in spherical coordinates are integrated with respect to time on global grids with mean horizontal resolutions of ,500 and 250 km. There are nine levels in the models from 80 m to 28 km above the ground. The models have realistic continents with smoothed topography and an ocean surface with February water temperatures prescribed. The insolation is for a Northern...
متن کاملthe simulation of climate change in semnan province with scenarios of atmospheric general circulation model (hadcm3)
1. introduction climatic change is one of the most important challenges human beings have confronted with in recent centuries due to its severe effects on water resources, agriculture, energy, tourism and even human bioclimatic. developing strategies, making decisions with awareness about water consumption in different parts in the future, and available water resources management require climat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of the American Meteorological Society
سال: 2004
ISSN: 0003-0007,1520-0477
DOI: 10.1175/bams-85-12-1903