Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL086817 |
Investigating the Role of Cloud-Radiation Interactions in Subseasonal Tropical Disturbances | |
Benedict, James J.1,2; Medeiros, Brian2; Clement, Amy C.1; Olson, Jerry G.2 | |
2020-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Cloud locking, a method that prescribes cloud properties for radiative tendency calculations, is traditionally used to explore climate feedbacks, but here is applied novelly to investigate cloud-radiation interaction (CRI) impacts on subseasonal tropical variability. The approach minimizes mean state differences between control (CRI active) and experimental simulations (CRI disabled) of the Community Earth System Model. Disabling CRI weakens amplitudes of the Madden-Julian oscillation (MJO) by 10-35% and equatorial Rossby waves by 10-30% yet strengthens Kelvin waves by 10-40%. MJO weakening results from suppressed radiation-convection positive feedbacks and increased gross moist stability. Kelvin waves strengthen from reduced convective inhibition and reduced radiative damping on temperature variance. The results are compared to a recently proposed theory that describes a continuum of tropical disturbances. MJO survival, when its primary maintenance mechanism (CRI) is eliminated, stresses the importance of advection and surface flux processes. |
英文关键词 | radiative-convective feedback tropical intraseasonal variability cloud locking CESM MJO Kelvin waves |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000536639500018 |
WOS关键词 | STATIC ENERGY BUDGET ; MADDEN-JULIAN OSCILLATION ; COUPLED EQUATORIAL WAVES ; LARGE-SCALE MODES ; MOISTURE MODES ; INTRASEASONAL VARIABILITY ; WATER-VAPOR ; EL-NINO ; TEMPERATURE ; CIRCULATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/279917 |
专题 | 气候变化 |
作者单位 | 1.Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Coral Gables, FL 33124 USA; 2.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Benedict, James J.,Medeiros, Brian,Clement, Amy C.,et al. Investigating the Role of Cloud-Radiation Interactions in Subseasonal Tropical Disturbances[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(9). |
APA | Benedict, James J.,Medeiros, Brian,Clement, Amy C.,&Olson, Jerry G..(2020).Investigating the Role of Cloud-Radiation Interactions in Subseasonal Tropical Disturbances.GEOPHYSICAL RESEARCH LETTERS,47(9). |
MLA | Benedict, James J.,et al."Investigating the Role of Cloud-Radiation Interactions in Subseasonal Tropical Disturbances".GEOPHYSICAL RESEARCH LETTERS 47.9(2020). |
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