黄色物质吸收系数a_g(440)与斜率S_g相关关系  

Correlation between absorption coefficient a_g(440) and the slope S_g of CDOM

作　　者：王林[1] 赵冬至[2] 傅云娜[2] 杨建洪[2] 邢小罡[2] 

机构地区：[1]大连海事大学环境科学与工程学院,辽宁大连116026 [2]国家海洋环境监测中心遥感室,辽宁大连116023

出　　处：《大连海事大学学报》2007年第S2期179-182,共4页Journal of Dalian Maritime University

基　　金：908计划项目资助(908-02-03-01)

摘　　要：利用2007年大连湾、长海县及舟山群岛附近海域黄色物质数据,对a_g(440)与S_g的相关关系进行研究发现:大连湾a_g(440)与S_g存在较为显著的负相关关系,长海县附近海域次之,而舟山群岛附近海域基本不存在相关性.根据Carder的研究成果,对a_g(440)与S_g相关关系的不确定性问题分别就近岸、大洋两类水体进行了分析,结果表明,无论是近岸水体还是大洋水体,存在负相关关系的几率较大,而出现正相关的几率很小.This paper discussed the correlation between a_g(440) and the slope S_g on the basis of analyzing absorption coefficients of chromophoric dissolved organic matter(CDOM)and its re- gressed slope S_g collected in Dalian Bay,Changhai County and Zhoushan Islands.The results show that there is a strong nega- tive correlativity in Dalian Bay,a weak negative correlativity in Changhai County,while non-correlativity in Zhoushan Islands. Through a careful discussion on the relationship between a_g (440)and S_g respectively in coastal waters and open sea,the results both show that the occurrence probability of negative cot- relativity is likely much higher than positive correlativity.

关 键 词：黄色物质 吸收系数 光谱斜率 相关关系 

分 类 号：P734.4[天文地球—海洋化学]