Monthly Tap Water Triple Isotope Measurements Across China, 2014-2015
by Chao Tian / Chinese Academy of Sciences
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Description
652 monthly tap water samples were collected from 92 sites across China between December 2014 and November 2015. The dataset contains isotopic compositions (δ2H, δ18O, δ17O) and derived variables (d-excess, 17O-excess), analyzed using a Triple Water Vapor Isotope Analyzer. It was created by Chao Tian of the Chinese Academy of Sciences to provide a national-scale monthly record of tap water isotopes.
Use Cases
Probing water sources and management strategies based on isotopic variations in tap water.
Investigating local climate signals recorded in tap water isotopic compositions.
Studying hydrological process mechanisms using the 17O-excess tracer.
Analyzing geographic patterns of water isotopes across China's 92 collection sites.
Strengths
Contains 652 monthly samples, providing a substantial temporal record.
Covers 92 geographically diverse sites across China, including latitude, longitude, and elevation.
Includes the relatively novel 17O-excess isotopic variable alongside traditional δ2H and δ18O measurements.
Limitations
Row count and file format are unknown, which may limit suitability assessment.
Column-level documentation is absent; field semantics must be inferred after download.
Data is from a single year (2014-2015); temporal coverage is limited.
Provenance
Source
Chao Tian, Chinese Academy of Sciences
Collection Method
Samples were analyzed by a Triple Water Vapor Isotope Analyzer (T-WVIA) based on Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) technique.
Time Range
December 2014 to November 2015
Geography
92 sites across China
License is listed as 'Open Access (green)'; specific terms should be verified.