Genesis of the South Asian High and Its Impact on the Asian Summer Monsoon Onset

• Published in: Journal of climate Vol. 26; no. 9; pp. 2976 - 2991
• Main Authors: Liu, Boqi, Wu, Guoxiong, Mao, Jiangyu, He, Jinhai
• Format: Journal Article
• Language: English
• Published: Boston, MA American Meteorological Society 01.05.2013
• Subjects: Air-sea interaction; Anticyclones; Asian; Atmosphere; Atmospheric circulation; Atmospheric circulation changes; Atmospherics; Belt conveyors; Case studies; Climate; Climatology. Bioclimatology. Climate change; Convection; Datasets; Diabatic heating; Earth, ocean, space; Exact sciences and technology; External geophysics; Heavy rainfall; Lower troposphere; Marine; Meteorology; Meteors; Monsoon onset; Monsoons; Peninsulas; Potential vorticity; Precipitation; Pumping; Rain; Rainfall; Rainy seasons; Satellites; Sea surface; Seas; South Asian High; Streamlines; Subtropical anticyclones; Summer; Summer monsoon; Troposphere; Upper troposphere; Vorticity; Water vapor; Water vapour; Wind shear; Winter; Winter circulation; Indian Ocean; Asia; Bay of Bengal; South Asia; Tibetan Plateau; Arabian Sea; Anticyclone; Onset time; Reanalysis; Timing; Summer monsoon; Formation mechanism; Composite analysis

The formation of the South Asian high (SAH) in spring and its impacts on the Asian summer monsoon onset are studied using daily 40-yr ECMWF Re-Analysis (ERA-40) data together with a climate-mean composite technique and potential vorticity–diabatic heating (PV–Q) analysis. Results demonstrate that, a...