Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL072202 |
Observational evidence against strongly stabilizing tropical cloud feedbacks | |
Williams, Ian N.1; Pierrehumbert, Raymond T.2 | |
2017-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
![]() |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | We present a method to attribute cloud radiative feedbacks to convective processes, using subcloud layer buoyancy as a diagnostic of stable and deep convective regimes. Applying this approach to tropical remote sensing measurements over years 2000-2016 shows that an inferred negative short-term cloud feedback from deep convection was nearly offset by a positive cloud feedback from stable regimes. The net cloud feedback was within statistical uncertainty of the National Center for Atmospheric Research Community Atmosphere Model (CAM5) with historical forcings, with discrepancies in the partitioning of the cloud feedback into convective regimes. Compensation between high-cloud responses to tropics-wide warming in stable and unstable regimes resulted in smaller net changes in high-cloud fraction with warming. In addition, deep convection and associated high clouds set in at warmer temperatures in response to warming, as a consequence of nearly invariant subcloud buoyancy. This invariance further constrained the magnitude of cloud radiative feedbacks and is consistent with climate model projections. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396115000037 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; CLIMATE SENSITIVITY ; WATER-VAPOR ; MODEL ; MODIS ; EARTH ; IRIS ; CIRCULATION ; THERMOSTAT ; MECHANISMS |
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/28006 |
专题 | 气候变化 |
作者单位 | 1.Lawrence Berkeley Natl Lab, Climate & Ecosyst Sci Div, Berkeley, CA 94720 USA; 2.Univ Oxford, Dept Phys, Oxford, England |
推荐引用方式 GB/T 7714 | Williams, Ian N.,Pierrehumbert, Raymond T.. Observational evidence against strongly stabilizing tropical cloud feedbacks[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(3). |
APA | Williams, Ian N.,&Pierrehumbert, Raymond T..(2017).Observational evidence against strongly stabilizing tropical cloud feedbacks.GEOPHYSICAL RESEARCH LETTERS,44(3). |
MLA | Williams, Ian N.,et al."Observational evidence against strongly stabilizing tropical cloud feedbacks".GEOPHYSICAL RESEARCH LETTERS 44.3(2017). |
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