Atmospheric precipitable water (APW) plays an important role in precipitation formation. There are great differences
in space for precipitation. Based on monthly NCEP/NCAR reanalysis data and observation data in 52 meteorological stations
during 2001- 2010, the spatial distribution of precipitation conversion was analyzed. Then the spatial distributions of APW and
precipitation conversion efficiency (PCE) in Xinjiang were investigated by APW method. Lastly, their spatial characteristics were
analyzed. The result indicates that the APW in Xinjiang decreases gradually from basins to mountains, which is opposite to
PCE. The high values of PCE mainly appear in the middle- western Tianshan Mountains and western Korum Mountain. The low
values mainly appear in Junggar Basin and Tarim Basin. There is significant seasonal variation during the year. The maximum
of PCE appears in summer, and the second one is in autumn, the followings are in spring and winter. Results of this research
could provide reference for the impact of topographical mechanism on precipitation in Xinjiang.
FAN Xuewei, LIU Hailong , ZHAO Wenyu, LI Jianmei.
Analysis of precipitation conver sion in Xinjiang based on NCEP data. Journal of Shihezi University. 2016, 34(3): 372-378 https://doi.org/10.13880/j.cnki.65- 1174/n.2016.03.019
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