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| DOI | 10.1016/j.atmosres.2017.12.007 |
| Detection of spatio-temporal variability of air temperature and precipitation based on long-term meteorological station observations over Tianshan Mountains, Central Asia | |
| Xu M.; Kang S.; Wu H.; Yuan X. | |
| 发表日期 | 2018 |
| ISSN | 01698095 |
| 卷号 | 203 |
| 英文摘要 | As abundant distribution of glaciers and snow, the Tianshan Mountains are highly vulnerable to changes in climate. Based on meteorological station records during 1960–2016, we detected the variations of air temperature and precipitation by using non-parametric method in the different sub-regions and different elevations of the Tianshan Mountains. The mutations of climate were investigated by Mann-Kendall abrupt change test in the sub-regions. The periodicity is examined by wavelet analysis employing a chi-square test and detecting significant time sections. The results show that the Tianshan Mountains experienced an overall rapid warming and wetting during study period, with average warming rate of 0.32 °C/10a and wet rate of 5.82 mm/10a, respectively. The annual and seasonal spatial variation of temperature showed different scales in different regions. The annual precipitation showed non-significant upward trend in 20 stations, and 6 stations showed a significant upward trend. The temperatures in the East Tianshan increased most rapidly at rates of 0.41 °C/10a. The increasing magnitudes of annual precipitation were highest in the Boertala Vally (8.07 mm/10a) and lowest in the East Tianshan (2.64 mm/10a). The greatest and weakest warming was below 500 m (0.42 °C/10a) and elevation of 1000–1500 m (0.23 °C/10a), respectively. The increasing magnitudes of annual precipitation were highest in the elevation of 1500 m–2000 m (9.22 mm/10a) and lowest in the elevation of below 500 m (3.45 mm/10a). The mutations of annual air temperature and precipitation occurred in 1995 and 1990, respectively. The large atmospheric circulation influenced on the mutations of climate. The significant periods of air temperature were 2.4–4.1 years, and annual precipitation was 2.5–7.4 years. Elevation dependency of temperature trend magnitude was not evidently in the Tianshan Mountains. The annual precipitation wetting trend was amplified with elevation in summer and autumn. The strong elevation dependence of precipitation increasing trend appeared in summer. © 2017 Elsevier B.V. |
| 英文关键词 | Air temperature and precipitation; Elevation dependency; Mann-Kendall test; Mutations; Periodicity; Tianshan Mountains |
| URL | https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85039169988&doi=10.1016%2fj.atmosres.2017.12.007&partnerID=40&md5=5dd2043875de7dab7d2f5dbf7034cde1 |
| 语种 | 英语 |
| scopus关键词 | Climate change; Landforms; Meteorology; Statistical tests; Wetting; Air temperature; Elevation dependency; Mann-Kendall test; Mutations; Periodicity; Tianshan; Atmospheric temperature; air temperature; atmospheric circulation; detection method; elevation; long-term change; precipitation (climatology); spatiotemporal analysis; weather station; Tien Shan |
| 来源期刊 | Atmospheric Research
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/77344 |
| 推荐引用方式 GB/T 7714 | Xu M.； Kang S.； Wu H.； Yuan X.. Detection of spatio-temporal variability of air temperature and precipitation based on long-term meteorological station observations over Tianshan Mountains, Central Asia[J]. 中国科学院西北生态环境资源研究院,2018,203. |
| APA | Xu M.； Kang S.； Wu H.； Yuan X..(2018).Detection of spatio-temporal variability of air temperature and precipitation based on long-term meteorological station observations over Tianshan Mountains, Central Asia.Atmospheric Research,203. |
| MLA | Xu M.； Kang S.； Wu H.； Yuan X.."Detection of spatio-temporal variability of air temperature and precipitation based on long-term meteorological station observations over Tianshan Mountains, Central Asia".Atmospheric Research 203(2018). |
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