Implementation of Noah land surface model advances in the National Centers for Environmental Prediction operational mesoscale Eta model
Implementation of Noah land surface model advances in the National Centers for Environmental Prediction operational mesoscale Eta model
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DOI：
10.1029/2002jd003296
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发表时间：
2003-11-29
影响因子：
4.4
通讯作者：
Tarpley, JD
中科院分区：
文献类型：
--
作者：
Ek, MB;Mitchell, KE;Tarpley, JD
[ 1]我们介绍了在国家环境预测中心（NCEP）中尺度Eta模型中使用的陆面模型最近业务升级之前的影响测试，其业务领域包括北美。这些改进包括对“诺亚”陆面模式（LSM）物理学的改变，最显着的是在冷季过程领域。结果表明，在预报低层温度和湿度方面的性能有所改善，提高了（或不影响）埃塔模式定量降水评分和高空验证统计的整体性能。直接影响Eta模式中Noah LSM性能的剩余问题包括辐射和云的物理参数化，这会影响表面可用能量的数量，以及稳定的边界层和表面层过程，这会影响表面湍流热通量并最终影响表面能量收支。
[ 1] We present the impact tests that preceded the most recent operational upgrades to the land surface model used in the National Centers for Environmental Prediction ( NCEP) mesoscale Eta model, whose operational domain includes North America. These improvements consist of changes to the " Noah'' land surface model ( LSM) physics, most notable in the area of cold season processes. Results indicate improved performance in forecasting low- level temperature and humidity, with improvements to ( or without affecting) the overall performance of the Eta model quantitative precipitation scores and upper air verification statistics. Remaining issues that directly affect the Noah LSM performance in the Eta model include physical parameterizations of radiation and clouds, which affect the amount of available energy at the surface, and stable boundary layer and surface layer processes, which affect surface turbulent heat fluxes and ultimately the surface energy budget.