Global S&T Development Trend Analysis Platform of Resources and Environment
项目编号 | 1535439 |
Collaborative Research: Understanding Congo Rainfall Variability and Trends | |
Sharon Nicholson | |
主持机构 | Florida State University |
项目开始年 | 2015 |
2015-09-01 | |
项目结束日期 | 2018-08-31 |
资助机构 | US-NSF |
项目类别 | Standard Grant |
项目经费 | 259553(USD) |
国家 | 美国 |
语种 | 英语 |
英文摘要 | Central African forests, the driest and second largest on Earth, have experienced a long-term drying trend. A recent study detected a widespread decline in forest photosynthetic capacity over the Congo Basin and attributed this large-scale decline, at least partially, to this drying trend. Persistent drought in the region could alter the Congolese forest composition and structure in a manner that might favor the spread of drought tolerant species and thus impact biodiversity, carbon storage, and the global water cycle. Understanding the nature and cause of this drought and assessing its impacts on the forests are of significant societal, environmental, and economic importance. Understanding of climatic variability in the Congo basin is greatly hindered by a lack of observations and resources due to political, economic and historical factors. Under this project, a combination of observational and modeling studies will be undertaken to investigate the nature and cause of the Congo rainfall variability in the 20th century. The role of global sea surface temperatures will be examined. For the observational component, observations and reanalysis data will be utilized to identify major patterns and drivers of the variability. For the modeling component, the Coupled Model Intercomparison Project (CMIP5) simulations and idealized climate model simulations will be examined to investigate the physical mechanisms for the Congo drought. The relative contribution of anthropogenic versus natural forcing on the observed rainfall decadal variability over the Congo Basin will be investigated. |
来源学科分类 | Geosciences - Atmospheric and Geospace Sciences |
文献类型 | 项目 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/68666 |
专题 | 环境与发展全球科技态势 |
推荐引用方式 GB/T 7714 | Sharon Nicholson.Collaborative Research: Understanding Congo Rainfall Variability and Trends.2015. |
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