Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD026068 |
Precipitation From a Multiyear Database of Convection-Allowing WRF Simulations | |
Goines, D. C.1; Kennedy, A. D.2 | |
2018-03-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:5页码:2424-2453 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Convection-allowing models (CAMs) have become frequently used for operational forecasting and, more recently, have been utilized for general circulation model downscaling. CAM forecasts have typically been analyzed for a few case studies or over short time periods, but this limits the ability to judge the overall skill of deterministic simulations. Analysis over long time periods can yield a better understanding of systematic model error. Four years of warm season (April-August, 2010-2013)-simulated precipitation has been accumulated from two Weather Research and Forecasting (WRF) models with 4km grid spacing. The simulations were provided by the National Center for Environmental Prediction (NCEP) and the National Severe Storms Laboratory (NSSL), each with different dynamic cores and parameterization schemes. These simulations are evaluated against the NCEP Stage-IV precipitation data set with similar 4km grid spacing. The spatial distribution and diurnal cycle of precipitation in the central United States are analyzed using Hovmoller diagrams, grid point correlations, and traditional verification skill scoring (i.e., ETS; Equitable Threat Score). Although NCEP-WRF had a high positive error in total precipitation, spatial characteristics were similar to observations. For example, the spatial distribution of NCEP-WRF precipitation correlated better than NSSL-WRF for the Northern Plains. Hovmoller results exposed a delay in initiation and decay of diurnal precipitation by NCEP-WRF while both models had difficulty in reproducing the timing and location of propagating precipitation. ETS was highest for NSSL-WRF in all domains at all times. ETS was also higher in areas of propagating precipitation compared to areas of unorganized diurnal scattered precipitation. Monthly analysis identified unique differences between the two models in their abilities to correctly simulate the spatial distribution and zonal motion of precipitation through the warm season. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428437100004 |
WOS关键词 | NUMERICAL WEATHER PREDICTION ; WARM-SEASON PRECIPITATION ; INTERNATIONAL H2O PROJECT ; OBJECT-BASED VERIFICATION ; SOUTHWEST UNITED-STATES ; PART II ; MICROPHYSICAL EVOLUTION ; OBSERVATIONAL ANALYSIS ; NOCTURNAL CONVECTION ; FLORIDA CUMULONIMBUS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32447 |
专题 | 气候变化 |
作者单位 | 1.Valparaiso Univ, Geog & Meteorol Dept, Valparaiso, IN 46383 USA; 2.Univ North Dakota, Dept Atmospher Sci, Grand Forks, ND USA |
推荐引用方式 GB/T 7714 | Goines, D. C.,Kennedy, A. D.. Precipitation From a Multiyear Database of Convection-Allowing WRF Simulations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(5):2424-2453. |
APA | Goines, D. C.,&Kennedy, A. D..(2018).Precipitation From a Multiyear Database of Convection-Allowing WRF Simulations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(5),2424-2453. |
MLA | Goines, D. C.,et al."Precipitation From a Multiyear Database of Convection-Allowing WRF Simulations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.5(2018):2424-2453. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论