Dataset of Stable Isotopes of Precipitation in the Eurasian Continent
Description
Dataset of stable isotope data for precipitation in the Eurasian continent from 1961 to 2022. It includes a total of 1,930 stations with a total of 51,752 data records.
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Steps to reproduce
This dataset includes measured data, website data, and data collected from reference literature. Data Collection: The data collected includes a variety of issues such as missing values, outliers, and duplicates, as well as gaps in dates and missing or incorrect latitude and longitude information. Therefore, the collected raw data underwent preprocessing and data cleaning. Missing data was interpolated, entries that could not be completed were removed, and duplicate data was eliminated. Measured Data: Standard rain gauges were used to collect precipitation samples. After each precipitation event, the collected samples were immediately transferred into 100ml high-density sample bottles. To prevent data errors caused by evaporation, the collected water samples were stored in a refrigerator at a temperature of approximately 4°C. Prior to analysis, the precipitation samples were naturally thawed at room temperature. Impurities were filtered out using a 0.45μm filter membrane, and the samples were transferred to 2ml sample bottles. Isotope values were measured using a liquid water isotope analyzer (DLT-100, Los Gatos Research, USA). For any abnormal or values that did not pass the LWIA post-analysis software check, parallel samples were selected for re-measurement to ensure data accuracy .