一种估算陆架上升流流速的新方法.pdfVIP

研究报告 R EPORTS OBSERVATIO NS O N AL UMINUM IN ATMOSPHERIC WET DEPOSITIO NS ALO NG THE COAST OF S HANDO NG PENINSULA XU Hui 1 ZHANGJing2 ,3 ( 1 De artment o A lied Chemistr , Yantai Universit , 264005) p f pp y y (2 Colle e o chemistr and Chemical En ineerin , Ocean Universit o Qin dao , 266003) g f y g g y f g (3 Institute o Estuarine Coastal , East China Normal Universit , Shan hai , 200062) f y g Received : Aug.,27 ,2001 Ke Words :Shandon Peninsula , Coast waters ,Aluminum , Wet de osition y g p Abstract Based on the observations over 4 ears at two landbase stations , aluminum in atmos heric wet de ositions alon y p p g shore Shandon Peninsula was examined. The results show a variabilit over one to two orders of ma nitude of aluminum g y g concentrations , de endin u on the source and athwa of airmass and aluminum. Seasonal variations can be summarized p g p p y as hi her concentrations of aluminum in winter and s rin and lower aluminum levels in summer and autumn. Examination g p g of the aluminum enrichment factor reveals that contribution of rec clin seasalts is ver limited. Elevated aluminum con y g y centrations are mainly from land sources emissions (e. g. , dust dissolution) , which may be delivered by both natural and ant