Publications

Ye, Haibin; Chen, Chuqun; Tang, Shilin; Tian, Liqiao; Sun, Zhaohua; Yang, Chaoyu; Liu, Fenfen (2014). Remote sensing assessment of sediment variation in the Pearl River Estuary induced by Typhoon Vicente. AQUATIC ECOSYSTEM HEALTH & MANAGEMENT, 17(3), 271-279.

Abstract
A MODIS-based algorithm was developed to investigate the impact of Typhoon Vicente on the total suspended solid concentration in the Pearl River Estuary. This algorithm used two high resolution bands at 645 nm and 555 nm to map the concentrations. Regression between the remote sensing reflectance and in situ total suspended solid concentration showed good correlation (R-2 = 0.91), indicating that the algorithm was valid for the high turbid waters in the Pearl River Estuary. MODIS-derived maps showed different total suspended solid concentration anomalies in different sub-regions of the estuary during the passage of Typhoon Vicente. In western inlets, the increase of total suspended solids (maximum values of 22.20 g m(-3) before and 55.71 g m(-3) after the typhoon) was possibly related to the larger rainfall discharge from the Pearl River. In Lingdingyang, the increase of total suspended solids (maximum values of 19.60 g m(-3) before and 44.59 g m(-3) after the typhoon) might be the result of typhoon-induced resuspension. In the southeastern portion of the Estuary, due to the typhoon-induced current, a significant decrease of total suspended solid area (decreased by 10 g m(-3)) was observed. Different changes were observed in different sub-regions under the influence of the typhoon, implying the complicated hydrological environment is an important feature in the Pearl River Estuary.

DOI:
10.1080/14634988.2014.944475

ISSN:
1463-4988