Seasonal Distribution of Observed Colored Dissolved Organic Matter(CDOM)in the Eastern Indian Ocean

作     者：CAI Xiaoqing MENG Jie YUAN Chao LIU Rongjie HOU Erhu BI Dayong LI Yaoru QIAN Chengcheng ZHONG Shan CAI Xiaoqing;MENG Jie;YUAN Chao;LIU Rongjie;HOU Erhu;BI Dayong;LI Yaoru;QIAN Chengcheng;ZHONG Shan

作者机构：Shandong Key Laboratory of Marine Ecological Environment and Disaster Prevention and MitigationQingdao 266061China North China Sea Marine Forecasting CenterMinistry of Natural ResourcesQingdao 266061China National Ocean Technology CenterMinistry of Natural ResourcesTianjin 300112China The First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China North China Sea Environmental Monitoring CenterMinistry of Natural ResourcesQingdao 266033China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2023年第22卷第4期

页      面：886-896页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 070702[理学-海洋化学] 07[理学] 0707[理学-海洋科学] 08[工学] 

基　　金：The study has received support from the National Natural Science Foundation of China(No.41906182) the National Program on Global Change and Air-Sea Interactions(No.GASI-01-WIND-STwin) the Program of Shandong Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation(Nos.202102,202209 and 201901) 

主　　题：colored dissolved organic matter tropical eastern Indian Ocean distribution characteristics influencing factors 

摘      要：Colored dissolved organic matter(CDOM)is a crucial constituent that affects the optical absorption properties of *** to the relatively limited measured data on the spatial distribution characteristics of CDOM in the tropical eastern Indian Ocean,this study analyzes the optical absorption characteristics of CDOM in the southeast Indian Ocean using the data collected during four seasons from 2013 to *** work also systematically describes the seasonal horizontal and vertical distribution characteristics of CDOM in this area and conducts a preliminary analysis of the relevant factors affecting CDOM absorption characteristics in this *** indicate that the CDOM ag(440)during summer was remarkably lower than that in the coastal waters of Europe and coastal waters of China but slightly higher than that in the western and southeast *** spatial distribution of surface CDOM shows remarkable seasonal differences,and the spatial distribution characteristics of CDOM in the 5°S,92°E region differ between spring/summer and autumn/*** values of ag(400)and ag(440)are weak/strong at a surface/subsurface level of 100 m,with differences found between summer and *** correlation of CDOM with temperature,salinity,and chlorophyll-a concentration is relatively low,indicating that CDOM is an independent driving mechanism influenced by phytoplankton degradation,photobleaching,and water mixing.