南京大学学报（自然科学版）Issue(5)：944-954,11.DOI:10.13232/j.cnki.jnju.2015.05.005
山区复杂地形条件下 GF-1卫星遥感雪面反射率计算
Calculation of snow reflectance from GF-1 satellite image in rugged mountain areas
摘要
Abstract
Aiming at the difficulty in calculating snow reflectance from high spatial resolution image in mountain areas,a method combined with anisotropy correction and topographic correction was proposed to covert the snow re-flectance in different slope to the nadir direction on the flat surface.In the process of anisotropy correction and topo-graphic correction,BRDF model and mountain radiation transmission model were applied to eliminate topographic effects respectively.The GF-1 WFV image of Manasi River Basin,Xinjiang Province was chosen as research data and snow spectral data achieved by synchronous observation was employed to evaluate the this method.The results show that this method could generally eliminate the influence caused by rugged terrain and atmosphere,and the snow re-flectance calculated by this method was in agreement with field observations in both non-shadow area and shadow area.This method can support the research on optical remote sensing of snow in mountain areas.关键词
雪面反射率/各向异性校正/地形校正/GF-1/玛纳斯河流域Key words
snow reflectance/anisotropy correction/topographic correction/GF-1/Manasi River Basin分类
信息技术与安全科学引用本文复制引用
蒋璐媛,肖鹏峰,冯学智,耶楠,贺广均,张学良..山区复杂地形条件下 GF-1卫星遥感雪面反射率计算[J].南京大学学报（自然科学版）,2015,(5):944-954,11.基金项目
高分辨率对地观测系统国家科技重大专项(95 Y40B02900113/1504),国家自然科学基金(41271353) （95 Y40B02900113/1504）
