A new daily gridded precipitation dataset for the Chinese mainland based on gauge observations
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Abstract
Abstract. High-quality, freely accessible, long-term precipitation estimates with fine spatiotemporal resolution play essential roles in hydrologic, climatic, and numerical modeling applications. However, the existing daily gridded precipitation datasets over China are either constructed with insufficient gauge observations or neglect topographic effects and boundary effects on interpolation. Using daily observations from 2839 gauges located across China and nearby regions from 1961 to the present, this study compared eight different interpolation schemes that adjusted the climatology based on a monthly precipitation constraint and topographic characteristic correction, using an algorithm that combined the…
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6Topics & keywords
Topics
Keywords
- Interpolation (computer graphics)
- Precipitation
- Environmental science
- Climatology
- Standard deviation
- Multivariate interpolation
- Mean squared error
- Meteorology
UN Sustainable Development Goals
- Climate action
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