Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5199 |
A new precipitation and drought climatology based on weather patterns | |
Richardson, Douglas1; Fowler, Hayley J.1; Kilsby, Christopher G.1; Neal, Robert2 | |
2018-02-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2018 |
卷号 | 38期号:2页码:630-648 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | Weather-pattern, or weather-type, classifications are a valuable tool in many applications as they characterize the broad-scale atmospheric circulation over a given region. This study analyses the aspects of regional UK precipitation and meteorological drought climatology with respect to a new set of objectively defined weather patterns. These new patterns are currently being used by the Met Office in several probabilistic forecasting applications driven by ensemble forecasting systems. Weather pattern definitions and daily occurrences are mapped to Lamb weather types (LWTs), and parallels between the two classifications are drawn. Daily precipitation distributions are associated with each weather pattern and LWT. Standardized precipitation index (SPI) and drought severity index (DSI) series are calculated for a range of aggregation periods and seasons. Monthly weather-pattern frequency anomalies are calculated for SPI wet and dry periods and for the 5% most intense DSI-based drought months. The new weather-pattern definitions and daily occurrences largely agree with their respective LWTs, allowing comparison between the two classifications. There is also broad agreement between weather pattern and LWT changes in frequencies. The new data set is shown to be adequate for precipitation-based analyses in the UK, although a smaller set of clustered weather patterns is not. Furthermore, intra-pattern precipitation variability is lower in the new classification compared to the LWTs, which is an advantage in this context. Six of the new weather patterns are associated with drought over the entire UK, with several other patterns linked to regional drought. It is demonstrated that the new data set of weather patterns offers a new opportunity for classification-based analyses in the UK. |
英文关键词 | meteorological drought precipitation climatology weather patterns Lamb weather types UK standardized precipitation index drought severity index |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423816900009 |
WOS关键词 | ATMOSPHERIC CIRCULATION PATTERNS ; OBJECTIVE CLASSIFICATION ; CLIMATIC VARIABILITY ; EXTREME RAINFALL ; UK ; FREQUENCY ; ENGLAND ; EVENTS ; EUROPE ; MODELS |
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/37268 |
专题 | 气候变化 |
作者单位 | 1.Newcastle Univ, Sch Civil Engn & Geosci, Cassie Bldg, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England; 2.Met Off, Dept Weather Sci, Exeter, Devon, England |
推荐引用方式 GB/T 7714 | Richardson, Douglas,Fowler, Hayley J.,Kilsby, Christopher G.,et al. A new precipitation and drought climatology based on weather patterns[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(2):630-648. |
APA | Richardson, Douglas,Fowler, Hayley J.,Kilsby, Christopher G.,&Neal, Robert.(2018).A new precipitation and drought climatology based on weather patterns.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(2),630-648. |
MLA | Richardson, Douglas,et al."A new precipitation and drought climatology based on weather patterns".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.2(2018):630-648. |
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