지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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This study discussed the applicability of satellite SAR (Synthetic Aperture Radar) imagery with regard to reservoir monitoring, and tried the extraction of reservoir storage from multi-temporal C-band RADARSAT-1 SAR backscattering images of Yedang and Goongpyeong agricultural reservoirs, acquired from May to October 2005. SAR technology has been advanced as a complementary and alternative approach to optical remote sensing and in-situ measurement. Water bodies in SAR imagery represent low brightness induced by low backscattering, and reservoir storage can be derived from the backscatter contrast with the level-area-volume relationship of each reservoir. The threshold segmentation over the routine preprocessing of SAR images such as speckle reduction and low-pass filtering concluded a significant correlation between the SAR-derived reservoir storage and the observation record in spite of the considerable disagreement. The result showed up critical limitations for adopting SAR data to reservoir monitoring as follows: the inappropriate specifications of SAR data, the unreliable rating curve of reservoir, the lack of climatic information such as wind and precipitation, the interruption of inside and neighboring land cover, and so on. Furthermore, better accuracy of SAR-based reservoir monitoring could be expected through different alternatives such as multi-sensor image fusion, water level measurement with altimeters or interferometry, etc
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참고문헌 (19)
참고문헌 신청
Abhyankar, A. A / 2007 / Identification of threshold to classify water in RADARSAT-1 SAR using IRS 1D LISS Ⅲ data and spatial correlation coefficient / Proc. of Asian Conference o
Annor, F. O / 2009 / Delineation of small reservoirs using radar imagery in a semi-arid environment: A case study in the upper east region of Ghana / Physics and Chemistry of
Derrow, R. W / 1998 / Acoustically measuring suspended sediment concentration and size distribution / Proc. Federal Interagency Workshop, Sediment Technology for the 21'st Century
Freeman, T / / What is Imaging Radar
Fu, L. L / 2009 / The SWOT (Surface Water and Ocean Topography) Mission: Spaceborn Radar Interferometry for Oceanographic and Hydrological Applications / OCEANOBS'09 Conference
Annor, F. O / 2009 / Delineation of small reservoirs using radar imagery in a semi-arid environment: A case study in the upper east region of Ghana / Physics and Chemistry of
Derrow, R. W / 1998 / Acoustically measuring suspended sediment concentration and size distribution / Proc. Federal Interagency Workshop, Sediment Technology for the 21'st Century
Freeman, T / / What is Imaging Radar
Fu, L. L / 2009 / The SWOT (Surface Water and Ocean Topography) Mission: Spaceborn Radar Interferometry for Oceanographic and Hydrological Applications / OCEANOBS'09 Conference
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