Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-18-0372.1 |
How Does Latent Cooling Affect Baroclinic Development in an Idealized Framework? | |
Haualand, Kristine F.1; Spengler, Thomas | |
2019-09-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2019 |
卷号 | 76期号:9页码:2701-2714 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway |
英文摘要 | Latent cooling by evaporating or melting hydrometeors has recently been shown to contribute to the positive low-level potential vorticity (PV) anomaly below the layer of latent heating in midlatitude cyclones. While the low-level PV anomaly might be intensified by latent cooling, the influence on the overall baroclinic development remains unclear. Including both latent heating and cooling in the Eady model, this study finds that latent cooling reduces baroclinic growth. While the PV anomaly between the layers of latent cooling and heating increases for realistic heating intensities, the PV anomaly at the top of the heating layer decreases, as latent heating is weakened because of reduced vertical motion within the cyclone. Consequently, the relative contribution from diabatic heating to the generation of eddy available potential energy decreases when latent cooling is included. Thus, despite the recently emphasized role of evaporation for the low-level PV anomaly in developing cyclones, the overall effect of latent cooling is detrimental to baroclinic growth. |
英文关键词 | Atmosphere Extratropical cyclones Potential vorticity Evaporation Latent heating cooling Quasigeostrophic models |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000481818200001 |
WOS关键词 | AVAILABLE POTENTIAL-ENERGY ; WARM CONVEYOR BELT ; MICROPHYSICAL PROCESSES ; DIABATIC PROCESSES ; VORTICITY ; MODEL ; CYCLONE ; INSTABILITY ; EVAPORATION ; ENERGETICS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/186794 |
专题 | 地球科学 |
作者单位 | 1.Univ Bergen, Geophys Inst, Bergen, Norway; 2.Bjerknes Ctr Climate Res, Bergen, Norway |
推荐引用方式 GB/T 7714 | Haualand, Kristine F.,Spengler, Thomas. How Does Latent Cooling Affect Baroclinic Development in an Idealized Framework?[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2019,76(9):2701-2714. |
APA | Haualand, Kristine F.,&Spengler, Thomas.(2019).How Does Latent Cooling Affect Baroclinic Development in an Idealized Framework?.JOURNAL OF THE ATMOSPHERIC SCIENCES,76(9),2701-2714. |
MLA | Haualand, Kristine F.,et al."How Does Latent Cooling Affect Baroclinic Development in an Idealized Framework?".JOURNAL OF THE ATMOSPHERIC SCIENCES 76.9(2019):2701-2714. |
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