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Rex, C.L. et al

Stable oxygen and hydrogen isotope composition of precipitation, river water and lake water in the Five Lakes of Mikata catchment, 2011-2012 and 2020-2022

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This dataset is available under the terms of the Open Government Licence

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https://doi.org/10.5285/6c8b8134-a877-41ee-aede-f480c7aaa80d
This dataset contains information about the stable oxygen and hydrogen isotope composition (δ18O, δ2H and d-excess) of waters within the Five Lakes of Mikata catchment. Datapoints span March 2011 – January 2012 and July 2020 – July 2022. Samples include precipitation on an event-basis, weekly river water and weekly lake water. To accompany the precipitation isotope composition data, total precipitation and average temperature during each subsampling period is provided. Water temperature and salinity variations with depth within Lake Suigetsu on six dates across the 2020 – 2022 sampling interval are also given. This data was collected to determine if catchment water composition reflects East Asian Monsoon variability.

This work was supported by an Australian Research Council Discovery Project (DP200101768), a JSPS KAKENHI Grant (19K20442) and the NERC IAPETUS2 Doctoral Training Partnership.
Publication date: 2024-05-26
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More information

View numbers valid from 26 May 2024 Download numbers valid from 20 June 2024 (information prior to this was not collected)

Format

Comma-separated values (CSV)

Spatial information

Study area
Spatial representation type
Tabular (text)
Spatial reference system
WGS 84 / Pseudo-Mercator

Temporal information

Temporal extent
2011-01-01    to    2022-07-31

Provenance & quality

River and lake water samples were taken using a collection vessel for surface samples or a sealable van Dorn water sampler for deep samples. Precipitation samples were taken using a purpose-built funnel and glass bottle holder. Water samples were then transported to the British Geological Survey, UK, for analysis on an Isoprime 100 mass spectrometer with an Aquaprep dual-inlet system (to yield δ18O values (‰)) and continuous flow, high temperature conversion elemental analyser - IRMS (EuropyrOH-Isoprime) with liquid autosampler (to yield δ2H values (‰)). D-excess values (in ‰) were calculated from these quantities. Water temperature (°C) and salinity data (%) were collected using a Hydrolab DS5 water quality meter and TOA-DKK WQC-24 meter. Total precipitation (mm) and average temperature (°C) were monitored using a Netatmo weather station.

Licensing and constraints

This dataset is available under the terms of the Open Government Licence

Cite this dataset as:
Rex, C.L.; Tyler, J.J.; Nagaya, K.; Staff, R.A.; Leng, M.J.; Yamada, K.; Kitaba, I.; Kitagawa, J.; Kojima, H.; Nakagawa, T. (2024). Stable oxygen and hydrogen isotope composition of precipitation, river water and lake water in the Five Lakes of Mikata catchment, 2011-2012 and 2020-2022. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/6c8b8134-a877-41ee-aede-f480c7aaa80d

Correspondence/contact details

Rex, C.
University of Glasgow
 c.rex.1@research.gla.ac.uk

Authors

Rex, C.L.
University of Glasgow
Tyler, J.J.
University of Adelaide
Nagaya, K.
Varve Museum
Staff, R.A.
University of Glasgow
Leng, M.J.
British Geological Survey
Yamada, K.
Ritsumeikan University
Kitaba, I.
Ritsumeikan University
Kitagawa, J.
Varve Museum
Kojima, H.
Wakasa Mikata Jomon Museum
Nakagawa, T.
Ritsumeikan University

Other contacts

Rights holder
Rex, C.L.
Custodian
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Publisher
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk

Additional metadata

Topic categories
inlandWaters
Keywords
D-excess , East Asia Monsoon , Freshwater isotope , Hydrogen isotope , lake , Lake profilling , Monitoring , Monsoon , Oxygen isotope , river , Stable isotope
Funding
Natural Environment Research Council
Australian Research Council Discovery Project Award: DP200101768
JSPS KAKENHI Award: 19K20442
Last updated
21 March 2025 13:35