DOI: 10.3354/cr01489
Scopus记录号: 2-s2.0-85044431759
论文题名: Spatial distribution of secular trends in annual and seasonal precipitation over Pakistan
作者: Ahmed K. ; Shahid S. ; Chung E.-S. ; Ismail T. ; Wang X.-J.
刊名: Climate Research
ISSN: 0936577X
出版年: 2017
卷: 74, 期: 2 起始页码: 95
结束页码: 107
语种: 英语
英文关键词: GPCC data
; Long-term persistence
; Modified Mann-Kendall
; Pakistan
; Precipitation trend analysis
Scopus关键词: data set
; monsoon
; persistence
; precipitation (climatology)
; spatial distribution
; trend analysis
; winter
; Himalayas
; Pakistan
英文摘要: The presence of autocorrelation and long-term persistence (LTP) can lead to considerable change in the significance of trends in hydro-climatic time series. This therefore casts doubt on past findings of climatic trend studies that did not consider LTP. We assessed the trends in spatio temporal patterns of annual and seasonal precipitation of Pakistan in recent years (1961-2010) using precipitation data from the Global Precipitation Climatology Centre (GPCC) using (1) the ordinary Mann-Kendall (MK) test and (2) the modified Mann-Kendall (MMK) test, which can discriminate LTP from unidirectional trends. The results indicate that significance in trends obtained using the MK test is reduced when LTP is taken into consideration. The annual precipitation in Pakistan is increasing in the northern highlands and a few places in the sub- Himalayan ranges in northeast Pakistan, where monsoon precipitation is also increasing. There is no indication of significant change in winter precipitation. Post-monsoon precipitation is in - creasing at a few locations in the monsoon-dominated southeast region and decreasing in the southwestern arid region. © Inter-Research 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116293
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
Recommended Citation:
Ahmed K.,Shahid S.,Chung E.-S.,et al. Spatial distribution of secular trends in annual and seasonal precipitation over Pakistan[J]. Climate Research,2017-01-01,74(2)