Title: On the Origin of Cumulus Parameterization for Numerical Prediction Models
Abstract: This chapter focuses on the early history of cumulus parametrization for numerical prediction models mainly in the 1960s through the early 1970s. The origin of cumulus parameterization is traced as a necessary means to perform stable time integrations of the primitive equation atmospheric models with moist physical processes. In the early days of numerical weather prediction during the 1950s, most of the prediction models were formulated using a quasi-geostrophic assumption. The chapter explains the three factors involved in the design of cumulus parameterization under the scenario of cooperative interaction between cumulus convection and its environment There are two independent roots in the early history of cumulus parameterization. One is the concept of conditional instability of the second kind (CISK) as a theory of cooperative interactions between cumulus convection and its environment for cyclone-scale development. The other root is the practice of convective adjustment to stably integrate the primitive equation models in a conditionally unstable moist environment, such as in the tropics.
Publication Year: 2000
Publication Date: 2000-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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Cited By Count: 11
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