Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales
For the first time, this article presents a large dataset of precipitation isotopic measurements (δ18Op and δ2Hp) sampled every day or 2 d 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 variabil...
| Autores: | , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/179290 |
| Acceso en línea: | https://hdl.handle.net/2445/179290 |
| Access Level: | acceso abierto |
| Palabra clave: | Paleoclimatologia Hidrologia Isòtops Pluja Meseta Nord (Península Ibèrica) Paleoclimatology Hydrology Isotopes Rain and rainfall Meseta Nord (Iberian Peninsula) |
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Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescalesMoreno, AnaIglesias, MiguelAzorin-Molina, CésarPérez-Mejías, CarlosBartolomé, MiguelSancho, CarlosStoll, HeatherCacho Lascorz, IsabelFrigola Ferrer, Jaime I.Osácar, CintaMuñoz, ArsenioDelgado Huertas, AntonioBladé, IleanaVimeux, FrançoisePaleoclimatologiaHidrologiaIsòtopsPlujaMeseta Nord (Península Ibèrica)PaleoclimatologyHydrologyIsotopesRain and rainfallMeseta Nord (Iberian Peninsula)For the first time, this article presents a large dataset of precipitation isotopic measurements (δ18Op and δ2Hp) sampled every day or 2 d 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.European Geosciences Union (EGU)2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/179290Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.5194/acp-21-10159-2021Atmospheric Chemistry and Physics, 2021, vol. 21, num. 13, p. 10159-10177https://doi.org/10.5194/acp-21-10159-2021cc-by (c) Moreno, A. et al., 2021https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1792902026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales |
| title |
Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales |
| spellingShingle |
Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales Moreno, Ana Paleoclimatologia Hidrologia Isòtops Pluja Meseta Nord (Península Ibèrica) Paleoclimatology Hydrology Isotopes Rain and rainfall Meseta Nord (Iberian Peninsula) |
| title_short |
Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales |
| title_full |
Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales |
| title_fullStr |
Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales |
| title_full_unstemmed |
Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales |
| title_sort |
Measurement report: Spatial variability of northern Iberian rainfall stable isotope values - investigating atmospheric controls on daily and monthly timescales |
| dc.creator.none.fl_str_mv |
Moreno, Ana Iglesias, Miguel Azorin-Molina, César Pérez-Mejías, Carlos Bartolomé, Miguel Sancho, Carlos Stoll, Heather Cacho Lascorz, Isabel Frigola Ferrer, Jaime I. Osácar, Cinta Muñoz, Arsenio Delgado Huertas, Antonio Bladé, Ileana Vimeux, Françoise |
| author |
Moreno, Ana |
| author_facet |
Moreno, Ana Iglesias, Miguel Azorin-Molina, César Pérez-Mejías, Carlos Bartolomé, Miguel Sancho, Carlos Stoll, Heather Cacho Lascorz, Isabel Frigola Ferrer, Jaime I. Osácar, Cinta Muñoz, Arsenio Delgado Huertas, Antonio Bladé, Ileana Vimeux, Françoise |
| author_role |
author |
| author2 |
Iglesias, Miguel Azorin-Molina, César Pérez-Mejías, Carlos Bartolomé, Miguel Sancho, Carlos Stoll, Heather Cacho Lascorz, Isabel Frigola Ferrer, Jaime I. Osácar, Cinta Muñoz, Arsenio Delgado Huertas, Antonio Bladé, Ileana Vimeux, Françoise |
| author2_role |
author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Paleoclimatologia Hidrologia Isòtops Pluja Meseta Nord (Península Ibèrica) Paleoclimatology Hydrology Isotopes Rain and rainfall Meseta Nord (Iberian Peninsula) |
| topic |
Paleoclimatologia Hidrologia Isòtops Pluja Meseta Nord (Península Ibèrica) Paleoclimatology Hydrology Isotopes Rain and rainfall Meseta Nord (Iberian Peninsula) |
| description |
For the first time, this article presents a large dataset of precipitation isotopic measurements (δ18Op and δ2Hp) sampled every day or 2 d 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. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/179290 |
| url |
https://hdl.handle.net/2445/179290 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció del document publicat a: https://doi.org/10.5194/acp-21-10159-2021 Atmospheric Chemistry and Physics, 2021, vol. 21, num. 13, p. 10159-10177 https://doi.org/10.5194/acp-21-10159-2021 |
| dc.rights.none.fl_str_mv |
cc-by (c) Moreno, A. et al., 2021 https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
cc-by (c) Moreno, A. et al., 2021 https://creativecommons.org/licenses/by/4.0/ |
| eu_rights_str_mv |
openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
European Geosciences Union (EGU) |
| publisher.none.fl_str_mv |
European Geosciences Union (EGU) |
| dc.source.none.fl_str_mv |
Articles publicats en revistes (Dinàmica de la Terra i l'Oceà) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
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Universidad de Barcelona |
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Dipòsit Digital de la UB |
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Dipòsit Digital de la UB |
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15,301603 |