渤海湾海域春季水污染的遥感分析

Preliminary Analysis on Remote Sensing of Spring Marine Pollution in Bohai Bay

利用NOAA极轨气象卫星1998—2007年资料,通过对水色通道的提取处理、影像分析,对渤海湾海域10年来春季的水色状况进行了初步分析。研究结果表明:渤海湾水域从1999年开始出现大范围污染,其中,2002年最为严重,2003、2004年有所好转,2005、2006年污染范围较广,2007年污染状况有较大改观。然而,2000年以来黄河口水域的水色混浊状况依旧未得到明显改善。

By using NOAA/AVHRR data of the polar orbit meteorological satellite from 1998 to 2007,the water pollution information was collected from remote sensing image translation,the water color conditions in the Bohai Bay in spring during these ten years reveal the water pollution situation evolution.The results show that the Bohai Bay waters began to display the large-scale pollution in 1999,of which the most serious was in 2002,it was improved in 2003 and 2004,but between 2005 and 2006,the pollution area was extended,only in the recent two years the pollution has had a major improvement.However,since 2000 the turbid water color situation of the Yellow River mouth still has not been significantly improved.The major reasons for pollution situation in the Bohai Bay are analyzed in this paper,which would provide the objective basis effectively on reasonably controlling and high effectively treating water pollution for governmental departments concerned.