A Preliminary Analysis of Summer Monsoon Precipitation Features in the Nothern Slopes of Tanggula Range, Tibetan Plateau

Based on the precipitation data recorded in Site D105 during the Intensive Observation Period of GAME Tibet (May～September, 1998), the features of the summer monsoon precipitation in the northern slopes of the Tanggula Range, Tibetan Plateau, has been analyzed The observation period was from June 7 to September 18, totally 104 days Among them, 81 days precipitation occurred The total precipitation was 279 2 mm in the period, equivalent to a daily mean precipitation of 3 45 mm It is believed that about June 7 was the onset day of summer monsoon in northern slopes of the Tanggula Range, 1998 The maximum monthly precipitation, 121 6 mm and accounting for 43 6% of the total precipitation, occurred in August In the summer monsoon period, the active phases and break phases of the monsoon precipitation existed significantly The main period was about 5 days The local convection cloud precipitation played an important role not only to the precipitation amount but also to the precipitation frequency at the Site D105