气候变化领域集成服务门户(CCPortal): Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - Investigating atmospheric controls on daily and monthly timescales

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DOI	10.5194/acp-21-10159-2021
	Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - Investigating atmospheric controls on daily and monthly timescales
	Moreno A.; Iglesias M.; Azorin-Molina C.; Pérez-Mejiás C.; Bartolomé M.; Stoll H.; Cacho I.; Frigola J.; Osácar C.; Muñoz A.; Delgado-Huertas A.; Bladé I.; Vimeux F.
发表日期	2021
ISSN	1680-7316
起始页码	10159
结束页码	10177
卷号	21 期号:13
英文摘要	For the first time, this article presents a large dataset of precipitation isotopic measurements (δ18Op and δ2Hp) sampled every day or 2d from seven sites on a west-to-east transect across northern Spain for 2010-2017. The main aim of this study is to (1) characterize the rainfall isotopic variability in northern Spain at daily and monthly timescales and (2) assess the principal factors influencing rainfall isotopic variability. The relative role of air temperature and rainfall in determining the stable isotope composition of precipitation changes along the west-to-east transect, with air temperature being highly correlated with δ18Op at daily and monthly timescales, while a few sites along the transect show a significant negative correlation with precipitation. The highest air temperature-δ18Op dependency is found for a station located in the Pyrenees. Frontal systems associated with North Atlantic cyclones are the dominant mechanism inducing precipitation in this region, particularly in winter. This study allows an exploration of the role of air mass source and trajectory in determining the isotopic composition of rainfall in northern Iberia by characterizing the moisture uptake for three of the seven stations. The importance of continental versus marine moisture sources is evident, with clear seasonal and spatial variations. In addition, the type of precipitation (convective versus frontal rainfall) plays a key role, with convective rainfall associated with higher δ18Op values. This comprehensive spatiotemporal approach to analyzing the rainfall isotopic composition represents another step forward towards developing a more detailed, mechanistic framework for interpreting stable isotopes in rainfall as a paleoclimate and hydrological tracer. © 2021 Ana Moreno et al.
语种	英语
scopus关键词	air temperature; atmospheric chemistry; isotopic composition; rainfall; spatial variation; stable isotope; timescale; Iberian Peninsula
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246755
作者单位	Department of Geoenvironmental Processes and Global Change, Pyrenean Institute of Ecology - CSIC, Avda. Montañana 1005, Zaragoza, 50059, Spain; Department of Geology, University of Oviedo, C/Arias de Velasco, s/no, Oviedo, 33005, Spain; Centro de Investigaciones Sobre Desertificación, Consejo Superior de Investigaciones Científicas (CIDE-CSIC), Valencia, Moncada, 46113, Spain; Institute of Global Environmental Change, Xi'An Jiaotong University, Xi'an, 710049, China; Earth Sciences Department, University of Zaragoza, C/Pedro Cerbuna 12, Zaragoza, 50009, Spain; Departamento de Geologiá. Museo Nacional de Ciencias Naturales - CSIC, C/José Gutiérrez Abascal 2, Madrid, 28006, Spain; Geological Institute, NO G59, Department of Earth Sciences, ETH, Sonneggstrasse 5, Zurich, 8092, Switzerland; CRG Marine Geosciences, Department de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, C/Martí i Franquès, s/no, Barcelona, 08028, Spain; Stable Isotope Biogeochemistry Laborator...
推荐引用方式 GB/T 7714	Moreno A.,Iglesias M.,Azorin-Molina C.,et al. Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - Investigating atmospheric controls on daily and monthly timescales[J],2021,21(13).
APA	Moreno A..,Iglesias M..,Azorin-Molina C..,Pérez-Mejiás C..,Bartolomé M..,...&Vimeux F..(2021).Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - Investigating atmospheric controls on daily and monthly timescales.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(13).
MLA	Moreno A.,et al."Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - Investigating atmospheric controls on daily and monthly timescales".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.13(2021).