The analysis of erosion and accretion in the Baishamen beach of the Qiongzhou Channel by remote sensing

doi:10.3969/j.issn.1001-909X.2016.03.007

Abstract

Abstract: The Baishamen beach of the Qiongzhou Channel is an important resource for the Haikou city's tourism, but the previous researches presented that it has been in erosion from 1960. The waterlines in 19 Landsat sensing images from 1994 to 2015 were extracted, which were used to calculate the beach slope and analyze the beach erosion and accretion. The results show that the beach was mainly in erosion from 1994 to 2008, the waterline moved 104.71 m to the shore near the high tidal level and 95.49 m to the shore near the low tidal level, but the artificial sand filling in the time around 2000 compensated the erosion. While the beach was mainly in accretion from 2008 to 2015, the waterline moved 34.17 m to the sea near the high tidal level and 25.93 m to the sea near the low tidal level, which may be induced by the Xinbu Island enclose engineering.

Key words: Baishamen beach, waterline, erosion and accretion, remote sensing

CLC Number:

TP75
P737.1

HUANG Ji-wen, ZHU Shou-xian, ZHU Wan-li, ZHANG Wen-jing, ZHANG Gui. The analysis of erosion and accretion in the Baishamen beach of the Qiongzhou Channel by remote sensing[J]. Journal of Marine Sciences, 2016, 34(3): 43-50.

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