A data processing method for MAPR hydrothermal plume turbidity data and its application in the Precious Stone Mountain hydrothermal field  

作　　者：CHEN Sheng TAO Chunhui LI Huaiming CHEN Yongshun ZHOU Jianping WU Tao 

机构地区：[1]College of GeoExploration Sicence and Technology,Jilin University [2]The Second Institute of Oceanography,State Oceanic Administration [3]Institute of Theoretical and Applied Geophysics,School of Earth and Space Sciences,Peking University

出　　处：《Acta Oceanologica Sinica》2014年第8期34-43,共10页海洋学报（英文版）

基　　金：The National Basic Research Program of China(973 Program)under contract No.2012CB417305;China Ocean Mineral Resources R&D Association"Twelfth Five-Year"Major Program under contract Nos DY125-11-R-01 and DY125-11-R-05;the Natural Science Foundation of Zhejiang Province under contract No.LY12D06006;the scientific research fund of the Second Institute of Oceanography under contract No.JG1203

摘　　要：Hydrothermal plume is an important constituent of seabed hydrothermal circulation and is also one of the characteristics of active hydrothermal vents. Portable Miniature Autonomous Plume Recorders （MAPR） attached to a towed deep-sea instrument was used to search for hydrothermal plumes and hydrothermal vents. We introduced the basic principle of MAPR based on deep towing technology to detect plumes, then analyzed the factors affecting the quality of the MAPR data and presented a data correction method for MAPR, including instrument location correction, noise reduction processing, system error elimination and seawater background reduction. Finally we applied the method to analyze MAPR data obtained during the Chinese DY115-21 cruise on R/VDayang Iin the “Precious Stone Mountain” hydrothermal field on the Gala-pagos Microplate. The results provided a better understanding of the distribution of the hydrothermal activ-ity in this field, indicating the presence of a new hydrothermal vent.Hydrothermal plume is an important constituent of seabed hydrothermal circulation and is also one of the characteristics of active hydrothermal vents. Portable Miniature Autonomous Plume Recorders （MAPR） attached to a towed deep-sea instrument was used to search for hydrothermal plumes and hydrothermal vents. We introduced the basic principle of MAPR based on deep towing technology to detect plumes, then analyzed the factors affecting the quality of the MAPR data and presented a data correction method for MAPR, including instrument location correction, noise reduction processing, system error elimination and seawater background reduction. Finally we applied the method to analyze MAPR data obtained during the Chinese DY115-21 cruise on R/VDayang Iin the “Precious Stone Mountain” hydrothermal field on the Gala-pagos Microplate. The results provided a better understanding of the distribution of the hydrothermal activ-ity in this field, indicating the presence of a new hydrothermal vent.

关 键 词：hydrothermal plume MAPR deep-sea tow technology Precious Stone Mountain hydrothermal field Galapagos Microplate 

分 类 号：P744[天文地球—海洋科学]