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Spectal Characteristics of Dry-Vegetation Cover Types Observed by Hyperspectral Data
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  • Spectal Characteristics of Dry-Vegetation Cover Types Observed by Hyperspectral Data
  • Spectal Characteristics of Dry-Vegetation Cover Types Observed by Hyperspectral Data
저자명
Lee. Kyu-Sung,Kim. Sun-Hwa,Ma. Jeong-Rim,Kook. Min-Jung,Shin. Jung-Il,Eo. Yang-Dam,Lee. Yong-Woong
간행물명
大韓遠隔探査學會誌
권/호정보
2006년|22권 3호|pp.175-182 (8 pages)
발행정보
대한원격탐사학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

Because of the phenological variation of vegetation growth in temperate region, it is often difficult to accurately assess the surface conditions of agricultural croplands, grasslands, and disturbed forests by multi-spectral remote sensor data. In particular, the spectral similarity between soil and dry vegetation has been a primary problem to correctly appraise the surface conditions during the non-growing seasons in temperature region. This study analyzes the spectral characteristics of the mixture of dry vegetation and soil. The reflectance spectra were obtained from laboratory spectroradiometer measurement (GER-2600) and from EO-1 Hyperion image data. The reflectance spectra of several samples having different level of dry vegetation fractions show similar pattern from both lab measurement and hyperspectral image. Red-edge near 700nm and shortwave IR near 2,200nm are more sensitive to the fraction of dry vegetation. The use of hyperspectral data would allow us for better separation between bare soils and other surfaces covered by dry vegetation during the leaf-off season.