Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2003.11a
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- Pages.346-348
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- 2003
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- 1226-9743(pISSN)
Estimation of Discharge for the Amazon River Branches with Wavelet Analysis
- Katabira, Kyoichiro (Faculty of Geo-Environment Science, Rissho University) ;
- Ogawa, Susumu (Faculty of Geo-Environment Science, Rissho University) ;
- Sakurai, Takako (Department of Applied Electronics, Science University of Tokyo) ;
- Takagi, Mikio (Graduate School of Engineering, Sibaura Institute of Technology)
- Published : 2003.11.03
Abstract
In this study, we attempted to estimate the discharge of the Amazon River branches from JERS-1/SAR images, which are independent of the weather. We visualized some traces of the Amazon River branches, transformed river shapes into a one-dimensional signal, and calculated the characteristics of the river shapes such as the meandering wavelength and the amplitude with Fourier and wavelet analysis. Then, we related the characteristics of the river shapes with the existing discharge data and derived some regression equations. Finally, we estimated the discharge of the Amazon River branches from the SAR images.