Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-19-0046.1 |
Topographic Effects on the Luzon Diurnal Cycle during the BSISO | |
Dellaripa, Emily M. Riley; Maloney, Eric D.; Toms, Benjamin A.; Saleeby, Stephen M.; van den Heever, Susan C. | |
2020 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2020 |
卷号 | 77期号:1页码:3-30 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Cloud-resolving simulations are used to evaluate the importance of topography to the diurnal cycle (DC) of precipitation (DCP) over Luzon, Philippines, and surrounding ocean during the July-August 2016 boreal summer intraseasonal oscillation (BSISO) event. Composites of surface precipitation for each 30-min time increment during the day are made to determine the mean DCP. The mean DCP is computed separately for suppressed and active BSISO conditions and compared across three simulations with varying topography-flat, true, and doubled topographic height. The magnitude of the topographic height helps to dictate the timing, intensity, and location of diurnal precipitation over and near Luzon. For example, the mean DCP in the true topography run peaks 1.5 h later, is broader by 1 h, and has a 9% larger amplitude during active conditions relative to suppressed conditions. By contrast, the flat run mean DCP is earlier and narrower by 0.5 h with a 5% smaller amplitude during active conditions versus suppressed conditions. Within the suppressed or active BSISO conditions, the mean DCP peak and amplitude increase as the topographic height increases. The presence of elevated topography focuses precipitation over the coastal mountains during suppressed conditions, while dictating which side of the domain (i.e., east Luzon and the Philippine Sea vs west Luzon and the South China Sea) more precipitation occurs in during active conditions. These topographic-induced changes are discussed in terms of mechanical and thermodynamic forcing differences between the two large-scale BSISO regimes for the three runs. |
英文关键词 | Maritime Continent Topographic effects Oscillations Precipitation Cloud resolving models Diurnal effects |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000501208900001 |
WOS关键词 | PRECIPITATION ANALYSIS TMPA ; MADDEN-JULIAN OSCILLATION ; CLOUD MICROPHYSICS PARAMETERIZATION ; MARITIME CONTINENT ; GPM IMERG ; MODELING SYSTEM ; LIFE-CYCLE ; CONVECTION ; RAINFALL ; RAMS |
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/280249 |
专题 | 地球科学 |
作者单位 | Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | Dellaripa, Emily M. Riley,Maloney, Eric D.,Toms, Benjamin A.,et al. Topographic Effects on the Luzon Diurnal Cycle during the BSISO[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2020,77(1):3-30. |
APA | Dellaripa, Emily M. Riley,Maloney, Eric D.,Toms, Benjamin A.,Saleeby, Stephen M.,&van den Heever, Susan C..(2020).Topographic Effects on the Luzon Diurnal Cycle during the BSISO.JOURNAL OF THE ATMOSPHERIC SCIENCES,77(1),3-30. |
MLA | Dellaripa, Emily M. Riley,et al."Topographic Effects on the Luzon Diurnal Cycle during the BSISO".JOURNAL OF THE ATMOSPHERIC SCIENCES 77.1(2020):3-30. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论