Title :
A procedure for estimating and monitoring red soil spread on coral reefs of Okinawa using multitemporal Landsat TM data
Author :
Watanabe, F. ; Nakamura, K. ; Samarakoon, L. ; Mabuchi, Y. ; Ishibashi, A.
Author_Institution :
River Manage. Div., Okinawa General Bureau, Japan
Abstract :
Soil deposition over coral reefs in Okinawa Island, japan is a major environmental problem as the accumulation of soil sediments could damage the reefs. Multitemporal Landsat Thematic Mapper (TM) data was used to estimate the aerial distribution of deposits since 1985. Spectral response patterns of TM bands were investigated and response patterns of deposited red soil and other coverages were established using reference samples. Procedure to establish these patterns, and estimation of aerial sedimentation of soil in time scale is presented
Keywords :
geophysical techniques; oceanographic regions; oceanographic techniques; remote sensing; sedimentation; water pollution; water pollution detection and control; AD 1985 to 1992; Japan; North Pacific; Okinawa; coast; coral reef; marine pollution; measurement technique; monitoring red soil spread; multitemporal Landsat TM; ocean; optical remote sensing; sediment deposition; sedimentation; smothering; soil; visible method; water pollution; Environmental factors; Environmental management; Remote monitoring; Remote sensing; Rivers; Satellites; Sea surface; Soil; Tides; Water;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International
Conference_Location :
Tokyo
Print_ISBN :
0-7803-1240-6
DOI :
10.1109/IGARSS.1993.322239
