downwind distance

基本解釋

EIAA overestimates the concentrations at further downwind distance by more than a factor of 2.
對于下風向遠距離處的濃度，EIAA的預測值高了一半以上。
As a result of chemical conversion and decay, the primary pollutant decreases with the downwind distance more rapidly, especially as the mesoscale distance further than 10 km.
由于化學轉(zhuǎn)換和衰減的作用，初生污染物隨著下風距離而較快地減少，特別是在10公里以后的中距離上更加明顯；
It is found that the maximum concentration often occurs near source through intensive vertical diffusion, and the values of concentration decrease with the distance downwind rather rapidly.
發(fā)現(xiàn)由于垂直擴散較強，最大濃度常于近源處發(fā)生，且向下風方濃度衰減較快。
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