Does Nudging Squelch the Extremes in Regional Climate Modeling
Does Nudging Squelch the Extremes in Regional Climate Modeling
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DOI：
10.1175/jcli-d-12-00048.1
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发表时间：
2012-05
影响因子：
4.9
通讯作者：
T. Otte;C. Nolte;M. Otte;J. Bowden
中科院分区：
文献类型：
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作者：
T. Otte;C. Nolte;M. Otte;J. Bowden
AbstractAn important question in regional climate downscaling is whether to constrain (nudge) the interior of the limited-area domain toward the larger-scale driving fields. Prior research has demonstrated that interior nudging can increase the skill of regional climate predictions originating from historical data. However, there is concern that nudging may also inhibit the regional model’s ability to properly develop and simulate mesoscale features, which may reduce the value added from downscaling by altering the representation of local climate extremes. Extreme climate events can result in large economic losses and human casualties, and regional climate downscaling is one method for projecting how climate change scenarios will affect extreme events locally. In this study, the effects of interior nudging are explored on the downscaled simulation of temperature and precipitation extremes. Multidecadal, continuous Weather Research and Forecasting model simulations of the contiguous United States are perfo...
