DOI: 10.1002/2016GL070711
论文题名: Assessing the level of spatial homogeneity of the agronomic Indian monsoon onset
作者: Fitzpatrick R.G.J. ; Parker D.J. ; Willetts P.D.
刊名: Geophysical Research Letters
ISSN: 0094-8376
EISSN: 1944-8107
出版年: 2016
卷: 43, 期: 22 起始页码: 11867
结束页码: 11874
语种: 英语
英文关键词: agronomic onsets
; India
; interannual variability
; monsoon
; seasonal forecasting
Scopus关键词: Agronomy
; Atmospheric temperature
; Coastal zones
; Financial data processing
; Oceanography
; Stochastic systems
; Surface waters
; Agronomic onsets
; India
; Interannual variability
; Monsoon
; Seasonal forecasting
; Atmospheric thermodynamics
英文摘要: Over monsoon regions, such as the Indian subcontinent, the local onset of persistent rainfall is a crucial event in the annual climate for agricultural planning. Recent work suggested that local onset dates are spatially coherent to a practical level over West Africa; a similar assessment is undertaken here for the Indian subcontinent. Areas of coherent onset, defined as local onset regions or LORs, exist over the studied region. These LORs are significant up to the 95% confidence interval and are primarily clustered around the Arabian Sea (adjacent to and extending over the Western Ghats), the Monsoon Trough (north central India), and the Bay of Bengal. These LORs capture regions where synoptic scale controls of onset may be present and identifiable. In other regions, the absence of LORs is indicative of regions where local and stochastic factors may dominate onset. A potential link between sea surface temperature anomalies and LOR variability is presented. Finally, Kerala, which is often used as a representative onset location, is not contained within an LOR suggesting that variability here may not be representative of wider onset variability. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85004093072&doi=10.1002%2f2016GL070711&partnerID=40&md5=1e3858ee7aa1f471ad3f74bcb60e092e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9339
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: ICAS, University of Leeds, Leeds, United Kingdom
Recommended Citation:
Fitzpatrick R.G.J.,Parker D.J.,Willetts P.D.. Assessing the level of spatial homogeneity of the agronomic Indian monsoon onset[J]. Geophysical Research Letters,2016-01-01,43(22).