Variations of Water Vapor Transports in Three Rivers’ Headstream during 1971-2010

Abstract:

Trend of water vapor transports in the Three Rivers’ Headstream region (China) during 1971-2010 was analyzed based on the applicability analysis of the NCEP/NCAR I reanalysis data in contrast to two kind of data: the daily wind and specific humidity of the R1 data, and the radiosonde data in and around the region. The results show that the meridional water vapor fluxes in the region decreased significantly, causing the net water vapor budget decreasing. The decadal variations of water vapor fluxes in the 1970s and 1980s are relatively smaller than those in the 1990s and 2000s. During 1971-2010, the water vapor budget showed an obvious decreasing trend in spring, summer and autumn, while no significant trend in winter. Overall, the water vapor transport into the region decreased significantly, especially in July and September, which had adverse impacts on precipitation formation.

• Periodical: Advanced Materials Research (Volumes 1073-1076)
• Pages: 1760-1763
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1073-1076.1760
• Online since: December 2014
• Authors: Bi Tao Fu, Xiao Fan Zeng*
• Keywords: Three Rivers’ Headstream Region, Water Vapor Budget, Water Vapor Transport

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