国家自然科学基金40971193,41206169,41206168;海洋公益性行业科研专项200905012,201005030;杭州师范大学遥感与地球科学研究院开放基金PDKF2010YG06;National Natural Science Foundation of China40971193,41206169,41206168;The Marine Public Welfare Industries Earmarked Fund200905012,201005030;Open Projects Fund Financed by Hangzhou Normal UniversityPDKF2010YG06