Fluxes of 7Be and 210Pb were continuously monitored at two sites in northern Taiwan during 1996–2001. The time series of both nuclides show seasonality and dependence on precipitation, annual monsoon cycle and episodic events (typhoons and Asian dust storms). Besides, anomalously high 7Be and 210Pb fluxes occurred in 1998, which are most likely caused by enhanced atmospheric convection in the north Pacific resulting from significantly increased SST in the western Pacific warm pool.

TAO, Vol. 16, No. 2, June 2005 362 greatly enhanced at low BP : PP ratio driven by the proliferation of N2-fixing cyanobacterium.