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DOI | 10.1029/2020GL091950 |
Characterizing uncertainties in ground “truth” of precipitation over complex terrain through high‐resolution numerical modeling | |
Lin Ouyang; Hui Lu; Kun Yang; L. Ruby Leung; Yan Wang; Long Zhao; Xu Zhou; LaZhu; Yingying Chen; Yaozhi Jiang; Xiangnan Yao | |
2021-05-04 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Ground observation of precipitation over complex terrain is subject to large uncertainties due to inadequate sampling. This study explores a method that combines limited gauge data and a high‐resolution numerical simulation to quantify the precipitation uncertainties in central Himalaya. Specifically, the Coefficient of spatial Variability (CV) of precipitation and the minimum Number of Required Stations (NRS) to obtain areal‐mean precipitation ground truth values within a 0.25‐degree area are investigated using fine‐scale meteorological simulation at 1.5 km grid spacing. Evaluation over a densely‐gauged area demonstrates comparable CV and NRS values between station observations and simulations. The simulated CV and NRS values in a larger area show a strong and positive dependence on each other and an expected positive (negative) correlation with topographic complexity (temporal scale). The proposed method sheds lights on evaluating precipitation products and holds promise for informing the layout of rain gauge networks in complex terrain. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/325835 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Lin Ouyang,Hui Lu,Kun Yang,等. Characterizing uncertainties in ground “truth” of precipitation over complex terrain through high‐resolution numerical modeling[J]. Geophysical Research Letters,2021. |
APA | Lin Ouyang.,Hui Lu.,Kun Yang.,L. Ruby Leung.,Yan Wang.,...&Xiangnan Yao.(2021).Characterizing uncertainties in ground “truth” of precipitation over complex terrain through high‐resolution numerical modeling.Geophysical Research Letters. |
MLA | Lin Ouyang,et al."Characterizing uncertainties in ground “truth” of precipitation over complex terrain through high‐resolution numerical modeling".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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