کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6441466 | 1639076 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Using robust correlation matching to estimate sand-wave migration in Monterey Submarine Canyon, California
ترجمه فارسی عنوان
با استفاده از تطبیق همبستگی قوی برای برآورد مهاجرت موج شن و ماسه در ناوگان دریایی مونتری، کالیفرنیا
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کلمات کلیدی
مهاجرت ساندویویج، تطبیق همبستگی قوی، دادههای خارج از محدوده، پیرایش سازگار،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
چکیده انگلیسی
Sandwave migration rate is of critical importance for the hydrodynamic research as well as the coastal engineering application. To acquire this information, the correlation matching algorithm is applied in this paper. By searching for similar seafloor areas between multi-temporal digital terrain models, the migration rate can be estimated. To account for the impact of the morphological distortion as well as outliers in the survey data, the correlation matching is adjusted based on the robust estimation theory. By executing the correlation matching based on the least median square criterion, a robust initial estimate is obtained. Afterwards, the potential outliers are detected based on the initial matching result, and the corresponding weights are adjusted to zero. Finally, correlation matching is executed with the updated weights. With the above procedure, the impact of outliers can be accounted for. The developed method is applied on the bathymetry time-series data collected in Monterey Canyon, California. Comparison shows that the presented algorithm significantly improves the credibility of the estimation. The generated migration vector field not only reveals the main tendency of the migration rate in the region, but also highlights the unique local migration patterns, which is helpful for understanding the mechanism of the sandwave migration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Geology - Volume 376, 1 June 2016, Pages 102-108
Journal: Marine Geology - Volume 376, 1 June 2016, Pages 102-108
نویسندگان
Kai Zhang, Fanlin Yang, Chunxia Zhao, Chengkai Feng,