Sea surface electric field observations off the coast from Goa (15°25'N, 73°47'E) to Madras (13°04'N, 80°15'E) around Sri Lanka, in a distance range 25-135 km from coast, during 9-2...Sea surface electric field observations off the coast from Goa (15°25'N, 73°47'E) to Madras (13°04'N, 80°15'E) around Sri Lanka, in a distance range 25-135 km from coast, during 9-20 May 1983 were taken. In this paper we have examined the diurnal variation of electric field in the Arabian Sea, Indian Ocean and Bay of Bengal regions covered during the cruise of the research ship ORV Gaveshani. An aspect of electric field dependence on coastal distance and Aitken Nuclei concentration has also been studied. An attempt to examine the latitude dependence of field was also made. Results obtained in the above studies are presented and compared with those obtained elsewhere.展开更多
研究了 1984—2000 年长江口海域水质溶解态重金属 Hg, Pb, Cd 和 Cu 的分布变化,并初步探讨了其分布机理。长时段多航次分析能使我们更好地了解重金属的总体分布及变化特征,通过历年监测资料的收集、整理和统计,取得了两个基本认识...研究了 1984—2000 年长江口海域水质溶解态重金属 Hg, Pb, Cd 和 Cu 的分布变化,并初步探讨了其分布机理。长时段多航次分析能使我们更好地了解重金属的总体分布及变化特征,通过历年监测资料的收集、整理和统计,取得了两个基本认识:重金属的分布演化具有波动性,沿中值水平线上下变化;高值区分布存在三种基本形式,其中离岸带高值区在长江口海域最具特色,各种分布形式可以相互转化。展开更多
文摘Sea surface electric field observations off the coast from Goa (15°25'N, 73°47'E) to Madras (13°04'N, 80°15'E) around Sri Lanka, in a distance range 25-135 km from coast, during 9-20 May 1983 were taken. In this paper we have examined the diurnal variation of electric field in the Arabian Sea, Indian Ocean and Bay of Bengal regions covered during the cruise of the research ship ORV Gaveshani. An aspect of electric field dependence on coastal distance and Aitken Nuclei concentration has also been studied. An attempt to examine the latitude dependence of field was also made. Results obtained in the above studies are presented and compared with those obtained elsewhere.
文摘研究了 1984—2000 年长江口海域水质溶解态重金属 Hg, Pb, Cd 和 Cu 的分布变化,并初步探讨了其分布机理。长时段多航次分析能使我们更好地了解重金属的总体分布及变化特征,通过历年监测资料的收集、整理和统计,取得了两个基本认识:重金属的分布演化具有波动性,沿中值水平线上下变化;高值区分布存在三种基本形式,其中离岸带高值区在长江口海域最具特色,各种分布形式可以相互转化。