globalchange  > 气候减缓与适应
DOI: 10.1175/JAMC-D-18-0188.1
WOS记录号: WOS:000459072600001
论文题名:
Evaluation of Reanalyses over British Columbia. Part II: Daily and Extreme Precipitation
作者: Odon, Pedro; West, Gregory; Stull, Roland
通讯作者: Odon, Pedro
刊名: JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
ISSN: 1558-8424
EISSN: 1558-8432
出版年: 2019
卷: 58, 期:2, 页码:291-315
语种: 英语
英文关键词: Extreme events ; Precipitation ; Reanalysis data ; Annual variations ; Seasonal cycle ; Trends
WOS关键词: GLOBAL PRECIPITATION ; CLIMATE-CHANGE ; TEMPERATURE ; WEATHER ; TRENDS ; NCEP ; PRODUCTS ; INDEXES ; CANADA ; MODEL
WOS学科分类: Meteorology & Atmospheric Sciences
WOS研究方向: Meteorology & Atmospheric Sciences
英文摘要:

This study evaluates how well reanalyses represent daily and multiday accumulated precipitation (hereinafter daily PCP) over British Columbia, Canada (Part I evaluated 2-m temperature). Reanalyses are compared with observations from 66 meteorological stations distributed over the complex terrain of British Columbia, separated into climate regions by k-means clustering. Systematic error, two-sample chi(2) statistic, and frequency of daily PCP occurrence are evaluated from the European Centre for Medium-Range Weather Forecasts (ECMWF) interim reanalysis (ERA-Interim), the Climate Forecast System Reanalysis (CFSR), the Japanese 55-year Reanalysis (JRA-55), and the latest Modern-Era Retrospective Analysis for Research and Applications (version 2; MERRA-2). The 2- and 30-yr return levels of daily PCP are estimated from a generalized extreme value (GEV) distribution fitted by the method of L moments, and their systematic errors are analyzed. JRA-55 and MERRA-2 generally outperform ERA-Interim and CFSR across all metrics. Biases are largely explained by poor reanalysis representation of terrain characteristics such as steepness, exposure, elevation, location of barriers, and wind speed and direction. Statistical stationarity of precipitation intensity and frequency over the 30-yr period is assessed by using confidence intervals and GEV distributions fitted with and without time-dependent parameters. It is determined that stationary distributions are sufficient to represent the climate of daily PCP for this region and time period.


Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/128392
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Univ British Columbia, Vancouver, BC, Canada

Recommended Citation:
Odon, Pedro,West, Gregory,Stull, Roland. Evaluation of Reanalyses over British Columbia. Part II: Daily and Extreme Precipitation[J]. JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY,2019-01-01,58(2):291-315
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Odon, Pedro]'s Articles
[West, Gregory]'s Articles
[Stull, Roland]'s Articles
百度学术
Similar articles in Baidu Scholar
[Odon, Pedro]'s Articles
[West, Gregory]'s Articles
[Stull, Roland]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Odon, Pedro]‘s Articles
[West, Gregory]‘s Articles
[Stull, Roland]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.