Using Satellite Remote Sensing to Study the Effect of Sand Excavation on the Suspended Sediment in the Hong Kong-Zhuhai-Macau Bridge Region
| العنوان: | Using Satellite Remote Sensing to Study the Effect of Sand Excavation on the Suspended Sediment in the Hong Kong-Zhuhai-Macau Bridge Region |
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| المؤلفون: | Tonghui Zhang, Shilin Tang, Fenfen Liu, Haibin Ye |
| المصدر: | Water, Vol 13, Iss 435, p 435 (2021) Water Volume 13 Issue 4 |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | lcsh:Hydraulic engineering, 010504 meteorology & atmospheric sciences, Geography, Planning and Development, Remote sensing reflectance, 0211 other engineering and technologies, 02 engineering and technology, Aquatic Science, 01 natural sciences, Biochemistry, suspended sediment concentration, lcsh:Water supply for domestic and industrial purposes, lcsh:TC1-978, sand excavation, 021101 geological & geomatics engineering, 0105 earth and related environmental sciences, Water Science and Technology, Hydrology, geography, lcsh:TD201-500, geography.geographical_feature_category, Sediment, Excavation, Estuary, Satellite remote sensing, Environmental science, symbolic regression, Landsat |
| الوصف: | The Hong Kong-Zhuhai-Macau Bridge crosses the Pearl River Estuary and is the largest bridge and tunnel project in the world. During the construction period of this project, the excessive suspended sediment was found in the construction region. The suspended sediment generated by sand excavation in the upstream was assumed to have a significant impact on the suspended sediment in the tunnel region. In this study, we assessed the impact of upstream sand excavation on the suspended sediment in the Hong Kong-Zhuhai-Macau Bridge construction area using Landsat OLI, ETM+, and TM data. Regional suspended sediment algorithms were developed for Landsat using a symbolic regression method based on data from in situ measurements in the study area from 2003 to 2014. A band shift was conducted on the remote sensing reflectance data from Landsat ETM+ and OLI to produce a time series of the suspended sediment concentrations that was internally consistent with that of the Landsat TM data. The suspended sediment distribution was extracted and used to compare under two different conditions, with and without sand excavation. The correlations of the time series of the suspended sediment concentrations in different regions in the surrounding waters, including the correlations between the construction regions and the sand excavation regions, were calculated. Our results indicated that the sand excavation north of the Pearl River Estuary had a limited impact on the surface suspended sediment concentrations in the Hong Kong-Zhuhai-Macau Bridge tunnel area. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2073-4441 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb8ca4c23a5ee80aa6e9d7db36cbebf4Test https://www.mdpi.com/2073-4441/13/4/435Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....fb8ca4c23a5ee80aa6e9d7db36cbebf4 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20734441 |
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