气候变化领域集成服务门户(CCPortal): Irrigation and hydrometeorological extremes

CCPortal

DOI	10.1007/s00382-020-05337-9
	Irrigation and hydrometeorological extremes
	de Vrese P.; Stacke T.
发表日期	2020
ISSN	0930-7575
起始页码	1521
结束页码	1537
卷号	55
英文摘要	In the present study, the Max-Planck-Institute for Meteorology’s Earth System Model is used to investigate irrigation’s general effect on severe and extreme hydrometeorological regimes. Our idealized simulations show a large potential to modulate the magnitude and occurrence frequency of severe and extreme precipitation rates, indicating the possibility to mitigate some of the detrimental effects of future climate change, but also a substantial risk due to the declining water availability in drying regions. Irrigation almost exclusively reduces the magnitude and occurrence frequency of severely and extremely dry conditions and has the potential to counter the drying trends that result from the 21st century increase in greenhouse gas concentrations—according to the RCP4.5 scenario. At the same time, irrigation does not only have a mitigating effect, as it increases the occurrence frequency and intensity of severely wet conditions in many regions. The study aims at irrigation’s theoretical (maximum) impact and investigates a highly idealized trajectory in which global irrigation is being maximized within hydrologically sustainable limits. However, even for this scenario, we find large regions in which present-day water extractions are not sustainable as they often rely on exhaustible sources. Especially, a depletion of non-renewable ground water in South Asia would lead to a strong reduction in irrigation and, consequently, a substantial increase in the occurrence frequency of severely and extremely dry months throughout the region. © 2020, The Author(s).
英文关键词	Climate change; Hydrometeorological extremes; Irrigation
语种	英语
scopus关键词	climate change; climate modeling; computer simulation; extreme event; frequency analysis; future prospect; hydrometeorology; irrigation; numerical model; precipitation intensity; regional climate; weather forecasting; South Asia
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145347
作者单位	Max Planck Institute for Meteorology, Bundesstraße 53, Hamburg, 20146, Germany; Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, Geesthacht, 21502, Germany
推荐引用方式 GB/T 7714	de Vrese P.,Stacke T.. Irrigation and hydrometeorological extremes[J],2020,55.
APA	de Vrese P.,&Stacke T..(2020).Irrigation and hydrometeorological extremes.Climate Dynamics,55.
MLA	de Vrese P.,et al."Irrigation and hydrometeorological extremes".Climate Dynamics 55(2020).