Spatiotemporal temperature trends over homogenous climatic regions of Pakistan during 1961-2017
文献类型：期刊论文
| 作者 | Hussain, Azfar6; Hussain, Ishtiaq7; Ali, Shaukat9; Ullah, Waheed8; Khan, Firdos5; Ullah, Safi1,4; Abbas, Haider3; Manzoom, Asima10; Cao, Jianhua6; Zhou, Jinxing2 |
| 刊名 | THEORETICAL AND APPLIED CLIMATOLOGY
 |
| 出版日期 | 2023-05-17 |
| 页码 | 19 |
| ISSN号 | 0177-798X |
| DOI | 10.1007/s00704-023-04484-3 |
| 通讯作者 | Cao, Jianhua(jhcaogl@karst.ac.cn) ; Zhou, Jinxing(zjx001@bjfu.edu.cn) |
| 英文摘要 | Rising temperature has increased the frequency, severity, length, and timing of temperature extremes around the globe. The current study examined the spatiotemporal variation of Tmin, Tmax, Tmean, and diurnal temperature range (DTR) over homogeneous climatic zones of Pakistan, using observed monthly datasets from fifty stations for the period 1961-2017. The nonparametric modified Mann-Kendall (MMK), Sen's slope estimator (SSE), and sequential Mann-Kendall (SQMK) tests were utilized to investigate the spatiotemporal trends. Cluster analysis and the L-moment approach were used to identify the homogenous climatic regions. In general, seasonal and annual Tmin, Tmax, Tmean, and DTR increased significantly in most sub-regions and the whole country, whereas JJA observed significant decreasing trends in Tmin, Tmax, and Tmean in most sub-regions during 1961-2017. Furthermore, decreasing trends prevailed in seasonal and annual Tmin in most sub-regions and the whole country during 1961-1989, whereas increasing trends were evident during 1990-2017. Tmean exhibited increasing trends on the seasonal and annual time scale in both periods except significant decrease in JJA at -0.16 and -0.20 degrees C/decade in the first and second periods, respectively. Tmax, Tmean, and DTR inferred decreasing trends in JJA at -0.42, -0.20, and -0.46 degrees C/decade, respectively, while Tmax and DTR had significant decrease in SON at -0.30 and -46 degrees C/decade, respectively, in the whole country during 1990-2017. The SQMK results indicate that Tmin, Tmax, Tmean, and DTR observed an increasing trend in DJF and MAM from 1985 onwards, and most of the regions observed significant trends from mid-2000. A negative correlation was observed between annual Tmin and Tmean with elevation, whereas a positive correlation was observed between annual Tmax and DTR with elevation. Pakistan has experienced numerous extreme events like heatwaves and droughts recently. Therefore, future research should investigate changes in air fluxes caused by zonal circulation and anticyclone conditions to explain the temperature variability. |
| WOS关键词 | SURFACE AIR-TEMPERATURE ; MINIMUM TEMPERATURES ; ECONOMIC CORRIDOR ; SOUTH-ASIA ; PRECIPITATION ; PROJECTIONS ; CHINA ; VARIABILITY ; EXTREMES ; IMPACTS |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000989907000001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/197399]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Cao, Jianhua; Zhou, Jinxing |
| 作者单位 | 1.Fudan Univ, Inst Atmospher Sci, Shanghai 200433, Peoples R China 2.Beijing Forestry Univ, Sch Soil & Water Conservat, Jianshui Res Stn, 35 Tsinghua East Rd, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Synth Res Ctr Chinese Ecosyst Res Network, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China 4.Fudan Univ, Dept Atmospher & Ocean Sci, Shanghai 200433, Peoples R China 5.Natl Univ Sci & Technol, Sch Nat Sci, H-12 Campus, Islamabad 44000, Pakistan 6.Chinese Acad Geol Sci, Inst Karst Geol, Int Res Ctr Karst Ausp UNESCO, 50,Qixinglu, Guilin 541004, Peoples R China 7.Chung Yuan Christian Univ, Dept Appl Math, Taoyuan City 32023, Taiwan 8.Rabdan Acad, Def & Secur, Abu Dhabi 114646, U Arab Emirates 9.Minist Climate Change, Global Change Impact Study Ctr, Islamabad, Pakistan 10.Fatima Jinnah Women Univ, Dept Sociol, Rawalpindi 44000, Pakistan |
| 推荐引用方式 GB/T 7714 | Hussain, Azfar,Hussain, Ishtiaq,Ali, Shaukat,et al. Spatiotemporal temperature trends over homogenous climatic regions of Pakistan during 1961-2017[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2023:19. |
| APA | Hussain, Azfar.,Hussain, Ishtiaq.,Ali, Shaukat.,Ullah, Waheed.,Khan, Firdos.,...&Zhou, Jinxing.(2023).Spatiotemporal temperature trends over homogenous climatic regions of Pakistan during 1961-2017.THEORETICAL AND APPLIED CLIMATOLOGY,19. |
| MLA | Hussain, Azfar,et al."Spatiotemporal temperature trends over homogenous climatic regions of Pakistan during 1961-2017".THEORETICAL AND APPLIED CLIMATOLOGY (2023):19. |
入库方式： OAI收割
来源：地理科学与资源研究所
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