The NEON Daily Isotopic Composition of Environmental Exchanges Dataset.
Sci Data 2022;
9:353. [PMID:
35729164 PMCID:
PMC9213549 DOI:
10.1038/s41597-022-01412-4]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 05/20/2022] [Indexed: 11/21/2022] Open
Abstract
The National Ecological Observatory Network (NEON) provides open-access measurements of stable isotope ratios in atmospheric water vapor (δ2H, δ18O) and carbon dioxide (δ13C) at different tower heights, as well as aggregated biweekly precipitation samples (δ2H, δ18O) across the United States. These measurements were used to create the NEON Daily Isotopic Composition of Environmental Exchanges (NEON-DICEE) dataset estimating precipitation (P; δ2H, δ18O), evapotranspiration (ET; δ2H, δ18O), and net ecosystem exchange (NEE; δ13C) isotope ratios. Statistically downscaled precipitation datasets were generated to be consistent with the estimated covariance between isotope ratios and precipitation amounts at daily time scales. Isotope ratios in ET and NEE fluxes were estimated using a mixing-model approach with calibrated NEON tower measurements. NEON-DICEE is publicly available on HydroShare and can be reproduced or modified to fit user specific applications or include additional NEON data records as they become available. The NEON-DICEE dataset can facilitate understanding of terrestrial ecosystem processes through their incorporation into environmental investigations that require daily δ2H, δ18O, and δ13C flux data.
Measurement(s) | stable isotope ratios in carbon dioxide • stable isotope ratios in atmospheric water vapor • stable isotope ratios in precipitation |
Technology Type(s) | eddy covariance towers • wet deposition collector |
Factor Type(s) | location |
Sample Characteristic - Environment | climate system |
Sample Characteristic - Location | United States of America |
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