Quality control and homogenization of daily meteorological data in the trans-boundary region of the Jhelum River basin
文献类型：SCI/SSCI论文
| 作者 | Mahmood R.; Jia, S. F. |
| 发表日期 | 2016 |
| 关键词 | quality control homogenization daily meteorological data Jhelum River basin Pakistan precipitation series multiple imputation climate data time-series homogeneity temperature pakistan models |
| 英文摘要 | Many studies such as climate variability, climate change, trend analysis, hydrological designs, agriculture decision-making etc. require long-term homogeneous datasets. Since homogeneous climate data is not available for climate analysis in Pakistan and India, the present study emphases on an extensive quality control and homogenization of daily maximum temperature, minimum temperature and precipitation data in the Jhelum River basin, Pakistan and India. A combination of different quality control methods and relative homogeneity tests were applied to achieve the objective of the study. To check the improvement after homogenization, correlation coefficients between the test and reference series calculated before and after the homogenization process were compared with each other. It was found that about 0.59%, 0.78% and 0.023% of the total data values are detected as outliers in maximum temperature, minimum temperature and precipitation data, respectively. About 32% of maximum temperature, 50% of minimum temperature and 7% of precipitation time series were inhomogeneous, in the Jhelum River basin. After the quality control and homogenization, 1% to 11% improvement was observed in the infected climate variables. This study concludes that precipitation daily time series are fairly homogeneous, except two stations (Naran and Gulmarg), and of a good quality. However, maximum and minimum temperature datasets require an extensive quality control and homogeneity check before using them into climate analysis in the Jhelum River basin. |
| 出处 | Journal of Geographical Sciences |
| 卷 | 26 |
| 期 | 12 |
| 页 | 1661-1674 |
| 语种 | 英语 |
| ISSN号 | 1009-637X |
| DOI标识 | 10.1007/s11442-016-1351-7 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/43143]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Mahmood R.,Jia, S. F.. Quality control and homogenization of daily meteorological data in the trans-boundary region of the Jhelum River basin. 2016. |
入库方式： OAI收割
来源：地理科学与资源研究所
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