Quantity, distribution, and impacts of coastal driftwood triggered by a typhoon

► More than three million trees fell and washed into the sea during a typhoon. 83.2% of Taiwanese coastline and 52 harbors were influenced by coastal driftwood. ► The accumulated coastal driftwood demonstrated log-profile declines with increasing distance to the river mouth. ► Quantity of coastal driftwood is related to the distance of the landslide location to river mouth as well as the landslide area, not the rainfall. ► Nearshore current is a critical factor for the deposition of coastal driftwood, not the ocean current.