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DOI | 10.1002/joc.5124 |
Homogenization and trend analysis of monthly mean and maximum wind speed time series in Finland, 1959-2015 | |
Laapas, Mikko; Venalainen, Ari | |
2017-11-30 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:14 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland |
英文摘要 | Observed near-surface monthly mean and maximum wind speed time series were homogenized in this study. Observations from 144 weather stations were used in the homogenization process, of which 33 covered the entire study period of 1959-2015. Homogenized time series were used to assess the linear trends in wind speed time series for various periods of interest, including the period of 1979-2008 for comparison with other studies. Trends were analysed on annual and seasonal levels. Based on statistical homogenization, by applying the HOMER homogenization tool and use of station history metadata, 95% of the analysed time series were found to be at least to some degree inhomogeneous. Almost half of the detected inhomogeneities were verified by metadata, most of which were due to changes in station location and height of the anemometer. Adjustment of detected inhomogeneities resulted in both temporally and spatially more consistent time series, therefore improving the quality of observational wind speed time series of Finland. Trends in homogenized wind speed time series, in both mean and maximum, were found to be generally negative around the whole study area. The mean linear trend of the annual mean and maximum wind speed of 33 weather stations for the period of 1959-2015 were estimated to be -0.09 and -0.32ms(-1) decade(-1), respectively. Negative trends were consistently found, regardless of data period and season. A majority of these trends were statistically significant (p<0.05). |
英文关键词 | wind speed time series homogenization HOMER trend analysis stilling Finland |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414322800005 |
WOS关键词 | TEMPERATURE ; PORTUGAL ; HOMER ; HOMOGENEITY ; FINNISH ; PERIOD |
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/37017 |
专题 | 气候变化 |
作者单位 | Finnish Meteorol Inst, Climate Serv Ctr, Erik Palmenin Aukio 1, Helsinki 00560, Finland |
推荐引用方式 GB/T 7714 | Laapas, Mikko,Venalainen, Ari. Homogenization and trend analysis of monthly mean and maximum wind speed time series in Finland, 1959-2015[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(14). |
APA | Laapas, Mikko,&Venalainen, Ari.(2017).Homogenization and trend analysis of monthly mean and maximum wind speed time series in Finland, 1959-2015.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(14). |
MLA | Laapas, Mikko,et al."Homogenization and trend analysis of monthly mean and maximum wind speed time series in Finland, 1959-2015".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.14(2017). |
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