Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD025993 |
Seasonal variation of shallow-to-deep convection transition and its link to the environmental conditions over the Central Amazon | |
Zhuang, Yizhou1,2; Fu, Rong2,3; Marengo, Jose A.4; Wang, Hongqing1 | |
2017-03-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Brazil |
英文摘要 | This study aims to characterize the seasonal variation of the shallow-to-deep convection transition and understand how environmental conditions impact the behavior of this transition using data collected from the Observations and Modeling of the Green Ocean Amazon (GOAmazon) field campaign in the Central Amazon (Manaus). The diurnal cycle of the rain/cloud fraction shows that the wet season has more extensive shallow convection before the transition to deep convection with larger fractional coverage and rainfall; deep convection in the transition season is more intense and has higher vertical extension and a stronger updraft. Surface meteorology, atmospheric moisture, instability, and wind shear are contrasted for the shallow/congestus convection (SC) cases and the locally formed shallow-to-deep convection transition (LD) cases. The comparisons suggest that occurrence of the LD is generally promoted under the conditions of high atmospheric moisture and instability but has a weaker dependence on wind shear. The relative importance of these environmental controls also varies in different seasons: The dry and transition seasons require a deeper moist layer from the boundary layer to midtroposphere than the wet season; convective available potential energy (CAPE) is higher during the transition season, but it is a less important factor for shallow-to-deep convection transition than in other seasons; LD only has significantly larger wind shears than SC during the dry season. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398064200008 |
WOS关键词 | RADIATION MEASUREMENT PROGRAM ; TROPICAL SOUTH-AMERICA ; CROSS-EQUATORIAL FLOW ; DIURNAL CYCLE ; ATMOSPHERIC RADIATION ; WATER-VAPOR ; CUMULUS CONVECTION ; WARM POOL ; PRECIPITATION ; CLOUD |
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/34388 |
专题 | 气候变化 |
作者单位 | 1.Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing, Peoples R China; 2.Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX 78712 USA; 3.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA; 4.Ctr Nacl Monitoramento & Alertas Desastres Nat CE, Sao Paulo, Brazil |
推荐引用方式 GB/T 7714 | Zhuang, Yizhou,Fu, Rong,Marengo, Jose A.,et al. Seasonal variation of shallow-to-deep convection transition and its link to the environmental conditions over the Central Amazon[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(5). |
APA | Zhuang, Yizhou,Fu, Rong,Marengo, Jose A.,&Wang, Hongqing.(2017).Seasonal variation of shallow-to-deep convection transition and its link to the environmental conditions over the Central Amazon.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(5). |
MLA | Zhuang, Yizhou,et al."Seasonal variation of shallow-to-deep convection transition and its link to the environmental conditions over the Central Amazon".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.5(2017). |
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