文献类型：会议论文

英文题名：The impact of hurricane Nari on the marine environment in the East China Sea

作者：Fu, Dongyang[1,2,3,4]; Li, Ning[3]; Ding, Youzhuan[3]; Pan, Delu[3]

机构：[1] South China Sea Institute of Oceanology [SCSIO], Chinese Academy of Sciences[CAS], Guangzhou 510301, China; [2] College of Information, Guangdong Ocean University, Zhanjiang 524088, China; [3] State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China; [4] Graduate School of the Chinese Academy of Sciences, Beijing [100049], China

会议论文集：MIPPR 2009 - Remote Sensing and GIS Data Processing and Other Applications

会议日期：October 30, 2009 - November 1, 2009

会议地点：Yichang, China

语种：英文

外文关键词：Chlorophyll - Submarine geophysics - Atmospheric temperature - Remote sensing - Surface waters - Hurricanes - Oceanography - Data handling

外文摘要：Sea surface temperature (SST) and chlorophyll-a concentration (Chl-a) are two typical variables of the ocean environment. This study focus on the area(120-130E,22-34N). The SST and Chl-a are monitored using MODIS data. the temperature and salinity are observed in situ from Argo. the change of these variables are simulated by COHERENS. In addition, the Ekman Pumping Velocity(EPV) are calculated. The results are as follows: Firstly, the SST in the study area before NARI was 27.23C, from 13th to 18th on Sep in 2007 was 25.65C with the minimum SST of 24.91C on 14th during NARI. Secondly, the Chl-a before and after NARI was 0.86mg/m3 and 1.23 mg/m3 respectively. On 5th day after hurricane, Chl-a reached to 1.95 mg/m 3. These observations of SST and Chl-a basically kept in consistence with the numerical simulation based on COHERENS in trend. Thirdly, the EPV before NARI was 210-5m/s, on the 15th up-to 3.510-4 m/s. Finally, the two groups of temperature and salinity data from Argo are on 4th and 14th. The observations showed that SST dropped from 29.95C to 28.82C. The average water temperature of 760 meters depth was 19.06C and 17.85C on 4th and 14th, respectively. The thermoclines were significantly weakened both in the surface and subsurface layer, the maximum salinity was 34.9psu on 4th near 100 meters and 34.86psu on 14th near the 130 meters depth. The salinity of the halocline decreased because of vertical mixing between the two layers with low-salt. ? 2009 Copyright SPIE - The International Society for Optical Engineering.