Stable-isotope variability in daily precipitation: insights from a low-cost collector in SE England

Holmes, Jonathan ORCID: https://orcid.org/0000-0001-8426-8861; Jourdan, Anne-Lise ORCID: https://orcid.org/0000-0001-6173-193X; Darling, W. George ORCID: https://orcid.org/0000-0001-9602-9147. 2024 Stable-isotope variability in daily precipitation: insights from a low-cost collector in SE England. Isotopes in Environmental and Health Studies. 1-19. 10.1080/10256016.2024.2402730

Before downloading, please read NORA policies.

Preview

Text (Open Access Paper)
Stable-isotope variability in daily precipitation insights from a low-cost collector in SE England.pdf - Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0.
Download (2MB) | Preview

Official URL: https://doi.org/10.1080/10256016.2024.2402730

Abstract/Summary

Precipitation stable-isotope data are often used in hydroclimatic, hydrological and hydrogeological investigations, with measurements typically undertaken on integrated monthly samples. However, daily sampling reveals overlooked aspects of controls on precipitation isotope values, including synoptic meteorological conditions. We present a one-year record of stable isotopes in daily precipitation during 2021, from a site in SE England close to Greater London. We find marked daily variability over the course of the year (–15.62 to +0.92 ‰ for δ18O, –108.7 to +2.9 ‰ for δ2H and –6.5 to +23.1 ‰ for deuterium excess). Correlations with individual meteorological variables including precipitation amount, temperature and weather type are moderate to weak suggesting complex controls on the daily rainfall isotope values. The daily data are compared with three other daily datasets from England and, by conversion to monthly values, directly with data from three long-term collection stations across Britain and Ireland. The scale of variability in the daily data from our site is consistent with that seen in other English records despite them all coming from different time periods. The monthly data show broad consistency, although there are differences that also highlight geographical variability in precipitation values across the British Isles.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1080/10256016.2024.2402730
ISSN:	1025-6016
Date made live:	03 Dec 2024 14:21 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/538496

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1080/10256016.2024.2402730

ISSN:

1025-6016

Date made live:

03 Dec 2024 14:21 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/538496