Temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics

Abstract Earth’s climate history is traced through the long-term covariance between the isotopic (δ 18O) composition of archived meteoric waters (groundwater, ice cores) with air temperature (T) and amount of precipitation (P). To assess recent multi-decadal climatic changes, we analysed δ 18O, T an...

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Autores principales:	Y. Vystavna, I. Matiatos, L. I. Wassenaar
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/372990428b05408c91950fee0d86a6bb
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spelling	oai:doaj.org-article:372990428b05408c91950fee0d86a6bb2021-12-02T18:34:02ZTemperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics10.1038/s41598-021-98094-62045-2322https://doaj.org/article/372990428b05408c91950fee0d86a6bb2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98094-6https://doaj.org/toc/2045-2322Abstract Earth’s climate history is traced through the long-term covariance between the isotopic (δ 18O) composition of archived meteoric waters (groundwater, ice cores) with air temperature (T) and amount of precipitation (P). To assess recent multi-decadal climatic changes, we analysed δ 18O, T and P, and the relationships between these parameters at 20 stations having 60 years of continuous monthly isotopic records. Using nonparametric regressions and time series modelling we found significant linear and non-linear relationships for δ 18O with T and P and showed that the δ 18O dependency on these two parameters varied over decadal scales, thereby revealing complex relationships related to recycled moisture, large-scale convective processes and atmospheric-oceanic oscillations. Due to multiple factors controlling the δ 18O composition of precipitation including P and T effects, we found that time-varying relationships between δ 18O in precipitation P and T were better explained using the non-linear regressions. Our results affirmed that δ 18O distributions in global precipitation are integrative indicators of climate dynamics whose patterns can be applied to better understand region-specific climatic changes in the present, past, and future.Y. VystavnaI. MatiatosL. I. WassenaarNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Y. Vystavna I. Matiatos L. I. Wassenaar Temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics
description	Abstract Earth’s climate history is traced through the long-term covariance between the isotopic (δ 18O) composition of archived meteoric waters (groundwater, ice cores) with air temperature (T) and amount of precipitation (P). To assess recent multi-decadal climatic changes, we analysed δ 18O, T and P, and the relationships between these parameters at 20 stations having 60 years of continuous monthly isotopic records. Using nonparametric regressions and time series modelling we found significant linear and non-linear relationships for δ 18O with T and P and showed that the δ 18O dependency on these two parameters varied over decadal scales, thereby revealing complex relationships related to recycled moisture, large-scale convective processes and atmospheric-oceanic oscillations. Due to multiple factors controlling the δ 18O composition of precipitation including P and T effects, we found that time-varying relationships between δ 18O in precipitation P and T were better explained using the non-linear regressions. Our results affirmed that δ 18O distributions in global precipitation are integrative indicators of climate dynamics whose patterns can be applied to better understand region-specific climatic changes in the present, past, and future.
format	article
author	Y. Vystavna I. Matiatos L. I. Wassenaar
author_facet	Y. Vystavna I. Matiatos L. I. Wassenaar
author_sort	Y. Vystavna
title	Temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics
title_short	Temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics
title_full	Temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics
title_fullStr	Temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics
title_full_unstemmed	Temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics
title_sort	temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/372990428b05408c91950fee0d86a6bb
work_keys_str_mv	AT yvystavna temperatureandprecipitationeffectsontheisotopiccompositionofglobalprecipitationreveallongtermclimatedynamics AT imatiatos temperatureandprecipitationeffectsontheisotopiccompositionofglobalprecipitationreveallongtermclimatedynamics AT liwassenaar temperatureandprecipitationeffectsontheisotopiccompositionofglobalprecipitationreveallongtermclimatedynamics
_version_	1718377912577556480

Temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics

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