A distinction between summer rainy season and summer monsoon season over the Central Highlands of Vietnam

  • Huong Ngo-Thanh
  • Thanh Ngo-Duc
  • Hanh Nguyen-Hong
  • Peter Baker
  • Tan Phan-Van
Original Paper

Abstract

The daily rainfall data at 13 stations over the Central Highlands (CH) Vietnam were collected for the period 1981–2014. Two different sets of criteria using daily observed rainfall and 850 hPa daily reanalysis wind data were applied to determine the onset (retreat) dates of the summer rainy season (RS) and summer monsoon (SM) season, respectively. Over the study period, the mean RS and SM onset dates were April 20 and May 13 with standard deviations of 17.4 and 17.8 days, respectively. The mean RS and SM retreat dates were November 1 and September 30 with standard deviations of 17.9 and 10.2 days, respectively. The year-to-year variations of the onset dates and the rainfall amount within the RS and SM season were closely linked with the preceding winter and spring sea surface temperature in the central-eastern and western Pacific. It was also found that the onset dates were significantly correlated with the RS and SM rainfall amount.

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Copyright information

© Springer-Verlag Wien 2017

Authors and Affiliations

  • Huong Ngo-Thanh
    • 1
  • Thanh Ngo-Duc
    • 1
    • 2
  • Hanh Nguyen-Hong
    • 1
  • Peter Baker
    • 3
  • Tan Phan-Van
    • 1
  1. 1.Department of Meteorology and Climate ChangeVNU University of ScienceHanoiVietnam
  2. 2.REMOSAT LaboratoryUniversity of Science and Technology of Hanoi (USTH), Vietnam Academy of Science and Technology (VAST)HanoiVietnam
  3. 3.CAB InternationalWallingfordUK

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