DOI: 10.1002/2016JD026165
论文题名: Multiscale evaluation of NCEP and CRUNCEP data sets at 90 large U.S. cities
作者: Tang D. ; Ma C. ; Wang Y. ; Xu X.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2017
卷: 122, 期: 14 起始页码: 7433
结束页码: 7444
语种: 英语
英文关键词: climate data
; CRUNCEP
; evaluation
; NCEP
; United States
英文摘要: The data sets of National Centers for Environmental Prediction (NCEP I and II) and Climatic Research Unit - NCEP (CRUNCEP) were evaluated by comparing against observational data from the National Oceanic and Atmospheric Administration at monthly and annual scales, site, and regional scales. The evaluations were conducted for air temperature (maximum, mean, and minimum) and precipitation at the 90 largest cities across the United States. At annual scale, NCEP I, NCEP II, and CRUNCEP were slightly yet significantly underestimated for mean temperature (1%) and maximum temperatures (1%). The NCEP I was significantly underestimated for minimum temperature (1%) while overestimated for total precipitation (16%); the NCEP II was significantly underestimated for minimum temperature (2%) and total precipitation (2%); the CRUNCEP was significantly overestimated for minimum temperature (2%) and total precipitation (6%). At monthly scale, three data sets were underestimated for a majority of months in terms of monthly mean temperature, monthly maximum temperature, monthly minimum temperature, and monthly total precipitation except an overestimation of CRUNCEP on minimum temperature (48%) and monthly total precipitation (43%). At the seasonal scale, three data sets had smaller biases in summer season and larger biases in winter season for temperature, while larger biases in summer season and smaller biases in winter seasons for precipitation. Overall, the CRUNCEP data set had a slightly better performance than NCEP I and NCEP II data sets. This multiscale evaluation of the three most widely used regional climate data sets provides insightful information for atmospheric science studies, particularly urban heat impact investigation. ©2017. American Geophysical Union. All Rights Reserved. 资助项目: ACI-1053575
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62635
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: College of Chemistry, Beijing Normal University, Beijing, China; Biological Department, University of Texas at El Paso, El Paso, TX, United States; Department of Biological Sciences, San Diego State University, San Diego, CA, United States
Recommended Citation:
Tang D.,Ma C.,Wang Y.,et al. Multiscale evaluation of NCEP and CRUNCEP data sets at 90 large U.S. cities[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(14)