Morphological changes of Dachan Bay in Pearl River Estuary based on RS and DEM

DOI

10.2991/rsete.2013.81How to use a DOI?

Keywords

Morphological change; harbor construction; tidal flat reclamation; remote sensing; Digital elevation model

Abstract

The surrounding area of the Dachan Bay in the Pearl River Estuary has one of the highest economic development rates of China. Rapid industrialization and urbanization has resulted in extensive changes in land use, including the tidal flat reclamation and harbor construction. For the analysis of the morphological changes of the Dachan Bay, multi-temporal Landsat images have been digitized by using the integrated RS and GIS technique, and the digital elevation modes in different years were set up in combination with topographical and nautical data. From the change analysis, it can be concluded that the sea area of the Dachan Bay decreases to 6.0 km2, by 87.6% between 1907a and 2011a due to the large-scale tidal flat reclamation, and the maximum downcutting depth of the seabed in the entrance area is over 10m mainly caused by extensive harbor construction. Based on the research of the morphological change in recent decades, it is suggested that the human activities have become one of the major factors affecting the morphological processes of the Dachan Bay.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ji Rongyao
AU  - Lu Yongjun
AU  - Wang Zhili
AU  - Mo Siping
PY  - 2013/08
DA  - 2013/08
TI  - Morphological changes of Dachan Bay in Pearl River Estuary based on RS and DEM
BT  - Proceedings of the 2013 the International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE 2013)
PB  - Atlantis Press
SP  - 332
EP  - 335
SN  - 1951-6851
UR  - https://doi.org/10.2991/rsete.2013.81
DO  - 10.2991/rsete.2013.81
ID  - Rongyao2013/08
ER  -