DOI: 10.1002/joc.5495
论文题名: Deriving Lamb weather types suited to regional climate studies: A case study on the synoptic origins of precipitation over Ireland
作者: Fealy R. ; Mills G.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 8 起始页码: 3439
结束页码: 3448
语种: 英语
英文关键词: Ireland
; modified Lamb weather types
; rainfall
; storm tracks
; synoptic origins
Scopus关键词: Climatology
; Image segmentation
; Rain
; Sea level
; Categorization systems
; Daily sea-level pressures
; Ireland
; Lamb weather types
; Storm track
; Synoptic circulations
; Synoptic origins
; Temporal and spatial variation
; Numerical methods
; precipitation (climatology)
; rainfall
; regional climate
; spatiotemporal analysis
; storm track
; synoptic meteorology
; Ireland
英文摘要: The Lamb weather type (LWT) categorization system is one of the best known procedures for summarizing the synoptic circulations that regulate daily weather. Traditionally, it is applied to daily sea level pressure, centred on a domain over the British Isles (BI), which is classed into one of 27 types (or 7 main types). The available register of LWTBI extends to the mid-19th century and has provided a valuable context for understanding the reasons for temporal and spatial variations in recorded weather elements, especially precipitation. Much of what is known of the synoptic origins of precipitation in Ireland has been based on the LWTBI, although it lies in the western part of this domain. While the original classification was based on manual assessment of weather maps, numerical methods can now be employed to objectively classify a pressure field into a LWT. As a result, it is possible to redefine the region of interest. In this study we applied the objective method to a new domain centred on Ireland (LWTIR). The article compares the catalogue of LWT created for the new domain with that available for the original domain; while the overall synoptic climatology does not change, the sequence of LWT classes differs considerably. As a result, the interpretation of the synoptic origins of precipitation over Ireland is modified and this directs research to new areas of enquiry. This new LWT register that is focused on Ireland provides a more useful context for studying Irish climate and demonstrates the value of the objective method. © 2018 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116859
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geography, Maynooth University, Maynooth, Ireland; School of Geography, University College Dublin, Dublin, Ireland
Recommended Citation:
Fealy R.,Mills G.. Deriving Lamb weather types suited to regional climate studies: A case study on the synoptic origins of precipitation over Ireland[J]. International Journal of Climatology,2018-01-01,38(8)