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Atmospheric Hydrological Cycle in the Tropics in Twentieth Century Coupled Climate Simulations by Hailan Wang; K. M. Lau is a Environmental Science article available to read on EtoBox.

What is Atmospheric Hydrological Cycle in the Tropics in Twentieth Century Coupled Climate Simulations about?

The objective of this study is to identify and understand the long-term change of the tropical hydrological cycle in twentieth-century climate simulations provided by 16 Coupled General Circulation Models (CGCMs) participating in the Intergovernmental Panel on Climate Change (IPCC), Fourth Assessment Report (AR4). This work is focused on trends of precipitation and clouds over the tropical ocean and land. We find that the CGCMs are reasonably consistent in depicting aspects of long-term changes in twentieth century climate and the tropical hydrological cycle, including (1) a relatively good simulation of trends in surface warming over both the tropical ocean and land, in agreement with observations; (2) increasing precipitation over the tropical ocean and decreasing precipitation over tropical land; (3) an increasing trend in heavy and light rain, but a decreasing trend in moderate rain, over the tropical ocean; and (4) a reduction in total cloud cover in the tropics. These successful simulations are encouraging and enhance our confidence in the future climate projections provided by these models. On the other hand, the current generation of CGCMs still has a number of deficiencies

Who reads Atmospheric Hydrological Cycle in the Tropics in Twentieth Century Coupled Climate Simulations?

Author

Hailan Wang; K. M. Lau

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0899-8418)

Published

2006

Language

EN

Field

Environmental Science (Physical Sciences)