期刊
GEOPHYSICAL RESEARCH LETTERS
卷 44, 期 2, 页码 1068-1078出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2016GL071339
关键词
large-scale tropospheric transport; idealized tracers; specified meteorology simulations
资金
- NASA's Advanced Supercomputing (NAS) Division
- NASA Center for Climate Simulation (NCCS)
- NSF [AGS-1403676]
- NASA [NNX14AP58G]
- U.S. National Science Foundation
- National Science Foundation (NSF)
- Office of Science of the U.S. Department of Energy
- NSF
- NASA [NNX14AP58G, 675055] Funding Source: Federal RePORTER
The transport of chemicals is a major uncertainty in the modeling of tropospheric composition. A common approach is to transport gases using the winds from meteorological analyses, either using them directly in a chemical transport model or by constraining the flow in a general circulation model. Here we compare the transport of idealized tracers in several different models that use the same meteorological fields taken from Modern-Era Retrospective analysis for Research and Applications (MERRA). We show that, even though the models use the same meteorological fields, there are substantial differences in their global-scale tropospheric transport related to large differences in parameterized convection between the simulations. Furthermore, we find that the transport differences between simulations constrained with the same-large scale flow are larger than differences between free-running simulations, which have differing large-scale flow but much more similar convective mass fluxes. Our results indicate that more attention needs to be paid to convective parameterizations in order to understand large-scale tropospheric transport in models, particularly in simulations constrained with analyzed winds.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据