Tropical Cyclone

Tropical Cyclone• Structure and CharacteristicsFigure 1 shows a schematic cross-section of a mature tropical cyclone.The right hand side shows the convective increasing towards the centerbecoming most marked at what is termed the ‘eye wall’. The left handside depicts the common occurrence where convective is also concentratedin a weather band some distance from the wall with an interruption ofactivity between the two, often called the ‘annular zone’. The ‘inflowlayer’ comprises the bottom 3km of the storm, most of the inflowoccurring below one km. Outflow occurs at the top of the storm withsubsidence at the outer limit and in the annular zone. The ‘outflow layer’15