DocumentCode :
3356571
Title :
Detection of coral distribution change in recent decades with satellite remote sensing
Author :
Yang, D.T. ; Liu, S.M. ; Shan, X.J.
Author_Institution :
State Key Lab. of Oceanogr. in the Tropics, South China Sea Inst. of Oceanol., Guangzhou, China
Volume :
2
fYear :
2013
fDate :
16-18 Dec. 2013
Firstpage :
830
Lastpage :
834
Abstract :
Coral reef is a very important ecosystem in Sanya Bay and it has been studied for years only with in situ observations. However, these in situ observations generally have point information and lack the spatial resolution. Recently in order to make clear coral reef spatial distribution and variation in Sanya Bay, Hainan, satellite data of Landsat, QuickBird, CBERS (China-Brazil Earth Resources Satellite program) and historical in situ observation data are used to retrieve and validate the information of coral reef. Based on the retrieved information, coral reef coverage and variation were studied in the paper. Satellite remote sensing results showed that area of coral reef distribution along coast of Dongmao (east) Islands and Ximao (west) islands in Sanya Bay reduced greatly in recent years, which coincides with variation trends of in situ observation data in the whole Sanya Bay. While analyzing the reason for coral reduction it was found that coral distribution in Sanya Bay conversely correlated with anthropic activities, such as digging coral reef for making lime and land use change. These activities change the water quality and sediment type which lead to the change in coral distribution.
Keywords :
geophysical image processing; image retrieval; remote sensing; CBERS; China-Brazil earth resources satellite program; Hainan; Landsat; QuickBird; Sanya Bay; coral distribution; coral distribution change detection; coral reduction; coral reef coverage; information retrieval; satellite data; satellite remote sensing; situ observations; spatial resolution; Accuracy; Earth; Ecosystems; Remote sensing; Satellites; Spatial resolution; Typhoons; Coral reef distribution; Sanya Bay; satellite remote sensing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image and Signal Processing (CISP), 2013 6th International Congress on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4799-2763-0
Type :
conf
DOI :
10.1109/CISP.2013.6745280
Filename :
6745280
Link To Document :
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