绿潮早期聚集期间天气过程分析  

Weather process analysis for the period during the early aggregation of green tide

作　　者：崔琳琳[1] 胡松[1] 杨红[1] 张建恒[2] 霍元子[2] 何培民[2] 

机构地区：[1]上海海洋大学海洋科学学院,海洋生态系统与环境实验室,上海201306 [2]上海海洋大学水产与生命学院,上海201306

出　　处：《海洋环境科学》2014年第6期941-946,共6页Marine Environmental Science

基　　金：国家海洋局公益性行业科研专项(201205010);国家海洋局公益性行业科研专项(201105023);科技部支撑项目(2012BAC07B03)

摘　　要：利用中尺度气象模式WRF对2009~2012年绿潮（浒苔）早期聚集之前两周的气象要素进行了模拟,分析了其两周平均、周平均和日平均变化规律。两周平均结果表明,绿潮聚集前期海面风速基本维持在（6~7）m/s,气温和海表温度（SST）均在12℃~15℃范围内,海温接近浒苔适宜生长温度;短波辐射能量在200 W/m2左右,光照条件有利于绿潮繁殖。除2009年外,其余3 a周平均结果表明绿潮聚集前期平均风速有减弱趋势,SST增温明显。日变化分析表明,除2009年外,2010、2011、2012年绿潮早期聚集前几天风速均较小,为4 m/s左右,风向基本为东南风;气温和SST均有快速上升趋势,2010、2011、2012年聚集之前SST超过15℃,SST和光照条件有利于浒苔大量增殖。The WRF（ weather research and forecasting model） was used to analyze biweekly,weekly and daily variations of meteorological conditions during two weeks before the early aggregation of greed tide（ Ulva prolifera） from2009 to 2012. The results of biweekly average show that sea surface wind speeds are about（ 6 ~ 7） m / s; air temperature and SST are both between 12 degree and 15 degree; and shortwave radiation is about 200 W / m2,which is optimal for U. prolifera growth. As for the weekly average,except for year 2009,wind speeds tend to decline and SST rises. Daily average shows that,except for year 2009,wind speeds before the early aggregation of green tide algae are basically southeast wind with magnitude as small as about 4 m / s; air temperature and SST tend to rise quickly,and SST reaches 15 ℃ during the early aggregation of the green tide algae. Shortwave radiations of daily average are about200 W / m2. Generally,SST and light condition are in favor of reproducing U. prolifera.

关 键 词：浒苔 气象条件 早期聚集 WRF 

分 类 号：X55[环境科学与工程—环境工程]