%0 Journal Article
%T Impacts of errors in meteorological simulations on estimation of isoprene emission<br>气象模拟误差对异戊二烯排放估算的影响
%A SITU Shuping
%A WANG Xuemei
%A Alex GUENTHER
%A Fei CHEN
%A CHAI Ziwei
%A WU Zhiyong
%A LI Zhiqin
%A <br>司徒淑娉
%A 王雪梅
%A Alex GUENTHER
%A Fei CHEN
%A 柴子为
%A 吴志勇
%A 李志琴
%J 环境科学学报
%D 2010
%I 
%X The MEGAN model was used to quantify isoprene emission in the Pearl River Delta (PRD) region for 2006. Two sensitive experiments were conducted in order to investigate the impacts of uncertainties in simulated, meteorological, near-surface weather elements on modeled isoprene emission. The results showed that the annual isoprene emission was 95.56×106 kg C in the PRD in 2006. Due to variations of meteorological conditions, the isoprene emission displayed a remarkable seasonal and diurnal variation. The highest seasonal emission flux was in summer with a value of 0.920 t·km-2. Considering diurnal patterns, the highest emission rate was at 13:00 local time. The results of sensitive experiments revealed that errors in MM5-simulated meteorological elements significantly impacted isoprene emission while overestimated (underestimated) solar radiation could increase (decrease) the emission rate by 36.20%~50.70% (30.73%~41.88%), which was larger than changes caused by temperature. However, changes in meteorological inputs did not affect the diurnal pattern of isoprene emission, just the emission rate. The emission rate of isoprene changed mostly at 8:00 in the morning or at 17:00 in the afternoon.
%K isoprene emission
%K Pear River Delta region
%K meteorological simulation errors<br>异戊二烯
%K 珠三角地区
%K 气象模拟误差
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=AED7F8B5B17E8F5537096AEC41DD16EC&yid=140ECF96957D60B2&vid=340AC2BF8E7AB4FD&iid=59906B3B2830C2C5&sid=76CE0C8B87EE0D79&eid=45DD1A078A51A2E3&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=2&reference_num=0