2012
DOI: 10.5194/gmd-5-1517-2012
| View full text |Cite
|
Sign up to set email alerts
|

Abstract: Abstract. The accurate modeling of cascades to unresolved scales is an important part of the tracer transport component of dynamical cores of weather and climate models. This paper aims to investigate the ability of the advection schemes in the National Center for Atmospheric Research's Community Atmosphere Model version 5 (CAM5) to model this cascade. In order to quantify the effects of the different advection schemes in CAM5, four two-dimensional tracer transport test cases are presented. Three of the tests … Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1

Citation Types

0
9
0

Year Published

2013
2013
2017
2017

Publication Types

Select...
7

Relationship

2
5

Authors

Journals

citations
Cited by 10 publications
(9 citation statements)
references
References 43 publications
(45 reference statements)
0
9
0
Order By: Relevance
“…This requires a prescribed velocity component and preferably a known solution. Although there are many two-dimensional horizontal tracer test cases on the sphere, including simple solid-body rotation tests (Williamson et al, 1992), static and moving vortices (Nair and Machenhauer, 2002;Nair and Jablonowski, 2008) and deformational flows (Nair and Lauritzen, 2010;Kent et al, 2012b), very few fully three-dimensional tracer-transport tests have been offered. Examples include solid-body rotation with a sinusoidal vertical velocity (Hubbard, 2002) and the three-dimensional advection tests of Zubov et al (1999).…”
Section: Introductionmentioning
confidence: 99%
“…This requires a prescribed velocity component and preferably a known solution. Although there are many two-dimensional horizontal tracer test cases on the sphere, including simple solid-body rotation tests (Williamson et al, 1992), static and moving vortices (Nair and Machenhauer, 2002;Nair and Jablonowski, 2008) and deformational flows (Nair and Lauritzen, 2010;Kent et al, 2012b), very few fully three-dimensional tracer-transport tests have been offered. Examples include solid-body rotation with a sinusoidal vertical velocity (Hubbard, 2002) and the three-dimensional advection tests of Zubov et al (1999).…”
Section: Introductionmentioning
confidence: 99%
“…9i,j). Kent et al (2012) suggested that the semi-Lagrangian transport scheme (Williamson and Rasch 1989;Williamson and Rasch 1994) in the EUL core is overall more diffusive than the flux-form semi-Lagrangian scheme (Lin et al 1994;Lin and Rood 1996) used in the FV core. This defect of the EUL core may limit its ability to simulate some sharp gradients in the real simulation.…”
Section: Sensitivity Of Ec Stratus Clouds To Dynamical Coresmentioning
confidence: 99%
“…Several studies have compared the performances between these two cores from particular aspects (e.g., Williamson 2008;Kent et al 2012). Since this study does not target evaluating the simulations but only investigating the sources of model errors, detailed comparisons are not made and only key differences are shown for our scientific concerns.…”
Section: Sensitivity Of Ec Stratus Clouds To Dynamical Coresmentioning
confidence: 99%
“…More challenging global idealized tests have been developed since the efforts of Williamson et al (1992) such as the highly deformational (moving) vortices on the sphere (Nair and Machenhauer, 2002;Nair and Jablonowski, 2008) and the "boomerang" flows of Nair and Lauritzen (2010). Despite the high degree of deformation in the (moving) vortex test problem, in particular when simulated beyond the original specification of simulation length (Kent et al, 2012;Pudykiewicz, 2011), it has an analytical solution. The "boomerang" flows, on the other hand, do not have easily accessible analytical solutions until the end of the specified simulation time.…”
mentioning
confidence: 99%
“…Similarly, LSPT2012 did not ask modelers to report on more specialized test cases that may be useful to study certain, perhaps more specialized, aspects of accuracy. For example, by running well-known deformational test cases out further in time (Pudykiewicz, 2011), one can study the downscale cascade from near grid scale to the sub-grid scale (Kent et al, 2012). Similar tests, such as many solid-body revolutions of a large constant plateau spanning many cells, can be used for "tuning" shape-preserving filters so that the peak tracer abundance does not decay linearly (if applicable) despite the initial plateau and analytic solution being very well resolved (Appendix A16).…”
mentioning
confidence: 99%