Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-19-0328.1 |
Direct and Indirect Effects of Surface Fluxes on Moist Baroclinic Development in an Idealized Framework | |
Haualand, Kristine F.; Spengler, Thomas | |
2020-09-01 | |
发表期刊 | Journal of the Atmospheric Sciences |
出版年 | 2020 |
英文摘要 | The convoluted role of surface sensible and latent heat fluxes on moist baroclinic development demands a better understanding to disentangle their local and remote effects. Including diabatic effects in the Eady model, the direct effects of surface fluxes on the diabatic generation of eddy available potential energy as well as their indirect effects through modifications of the circulation and latent heating are investigated. It is shown that surface sensible heat fluxes have a minor impact, irrespective of their position and parameterization, while latent heating in the region equivalent to the warm conveyor belt is the dominant diabatic source for development. Downward surface sensible heat fluxes in proximity of the warm conveyor belt results in structural modifications that increase the conversion from basic-state available potential energy to eddy available potential energy, while concomitantly weakening the ascent and hence latent heating. The detrimental effects are easily compensated through provision of additional moisture into the warm conveyor belt. Upward surface heat fluxes in the cold sector, on the other hand, are detrimental to growth. When downward (upward) surface sensible heat fluxes are located below the equivalent of the warm conveyor belt, the diabatically induced PV anomaly at the bottom of the latent heating layer becomes dominant (less dominant). Shifting the downward surface sensible heat fluxes away from the warm conveyor belt results in substantial changes in the growth rate, latent heat release, low-level structure, and energetics, where the effect of surface sensible heat fluxes might even be beneficial. |
领域 | 地球科学 ; 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/293966 |
专题 | 地球科学 气候变化 |
推荐引用方式 GB/T 7714 | Haualand, Kristine F.,Spengler, Thomas. Direct and Indirect Effects of Surface Fluxes on Moist Baroclinic Development in an Idealized Framework[J]. Journal of the Atmospheric Sciences,2020. |
APA | Haualand, Kristine F.,&Spengler, Thomas.(2020).Direct and Indirect Effects of Surface Fluxes on Moist Baroclinic Development in an Idealized Framework.Journal of the Atmospheric Sciences. |
MLA | Haualand, Kristine F.,et al."Direct and Indirect Effects of Surface Fluxes on Moist Baroclinic Development in an Idealized Framework".Journal of the Atmospheric Sciences (2020). |
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