Seminarium fizyki atmosfery

Tropospheric winds over Sumatra – the diurnal evolution and its variability in response to large-scale phenomena

mgr Wojciech Szkółka

Instytut Geofizyki PAN


3 czerwca 2022 13:15, ul. Pasteura 5, B0.14 and online via ZOOM

Sumatra - the westernmost island of the Maritime Continent (MC) - is strongly affected by propagating tropical phenomena. Previous research identified numerous interactions between weather modes - both local and large-scale – that affect local environment in the MC area. However, still, the mechanisms of these interactions are not fully understood.
In this talk, the primary mode of variability in tropospheric winds – the diurnal cycle – will be discussed based on data from Equatorial Atmospheric Radar (EAR), which provides powerful information about tropospheric dynamics over a wide range of altitudes, with high temporal frequency and over a long period. The effects of interannual and subseasonal modes on tropospheric winds will be analyzed. These variations and interactions will be combined with diurnal evolution of clouds and precipitation over Sumatra.


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