27 Oct 2023
 | 27 Oct 2023
Status: this preprint is currently under review for the journal ESSD.

Dataset of Stable Isotopes of Precipitation in the Eurasian Continent

Longhu Chen, Qinqin Wang, Guofeng Zhu, Xinrui Lin, Dongdong Qiu, Yinying Jiao, Siyu Lu, Rui Li, Gaojia Meng, and Yuhao Wang

Abstract. Stable isotopes in precipitation can effectively reveal the process of atmospheric water circulation, serving as an effective tool for hydrological and water resources research, climate change, and ecosystem studies. The scarcity of stable isotope data in precipitation has hindered comprehension of regional hydrology, climate, and ecology due to discontinuities on a temporal scale and unevenness on a spatial scale. To this end, we collated stable hydrogen and oxygen isotope data in precipitation from 1930 stations in Eurasia from 1961 to 2022, totalling 51,752 data records. Stable isotopes in precipitation across various regions of Eurasia, as a whole, decrease with increasing latitude and distance from the coast. In the summer, stable isotopes in precipitation are relatively enriched, while in winter, they are relatively depleted. In recent decades, the stable isotope values of Eurasian precipitation show an overall trend of increasing variation with the advancement of years, which is associated with global warming. Geographical location, underlying surface conditions, seasons, and atmospheric circulation are all factors that determine the characteristics of stable isotopes in precipitation. The dataset of stable isotopes in Eurasian precipitation provides a powerful tool for understanding changes in regional atmospheric water circulation and assists in conducting hydrological, meteorological, and ecological studies in related regions.

Longhu Chen et al.

Status: open (until 27 Dec 2023)

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  • RC1: 'Comment on essd-2023-384', Aadil Bhat, 24 Nov 2023 reply

Longhu Chen et al.

Longhu Chen et al.


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Short summary
We have compiled data regarding stable precipitation isotopes from 1930 sampling points throughout the Eurasian continent since 1961, accumulating a total of 51,753 data records. This collected data has undergone preprocessing and statistical analysis. Moreover, we analyzed the spatiotemporal distribution of stable precipitation isotopes across the Eurasian continent and their interrelationships with meteorological elements.