CPL Meteorology · Practice

You are based in Townsville (YBTL) and observe that during August–September, dust haze frequently reduces visibility to 3,000–5,000 m in afternoon southeasterlies. This is MOST likely due to:

• A.Industrial pollution from coastal shipping, fuel refineries
• B.Saharan dust transported across the Pacific Ocean in the subtropical jet stream regularly reaches Queensland coastal areas during winter and creates widespread IFR visibility conditions
• C.Smoke from prescribed burns and savanna fires in the dry season
• D.Red soil dust from coastal sand dunes picked up by onshore sea breezes and redistributed inland