测绘与空间地理信息
測繪與空間地理信息
측회여공간지리신식
GEOMATICS & SPATIAL INFORMATION TECHNOLOGY
2014年
9期
122-125
,共4页
大气校正%ETM+%FLAASH模型%ATCOR2模型
大氣校正%ETM+%FLAASH模型%ATCOR2模型
대기교정%ETM+%FLAASH모형%ATCOR2모형
atmospheric correction%ETM+%FLAASH model%ATCOR2 model
利用FLAASH和ATCOR2模型对漓江流域的Landsat ETM+数据进行大气校正,以GLS( Global Land Sur-vey)获得的同步高质量地表反射率影像作为参考数据,从目视效果、典型地物光谱特征和波谱一致性三方面对两种模型的校正结果进行对比分析。研究表明,两种模型均可以对ETM+影像进行有效的大气校正,FLAASH模型的校正精度优于ATCOR2模型。
利用FLAASH和ATCOR2模型對巑江流域的Landsat ETM+數據進行大氣校正,以GLS( Global Land Sur-vey)穫得的同步高質量地錶反射率影像作為參攷數據,從目視效果、典型地物光譜特徵和波譜一緻性三方麵對兩種模型的校正結果進行對比分析。研究錶明,兩種模型均可以對ETM+影像進行有效的大氣校正,FLAASH模型的校正精度優于ATCOR2模型。
이용FLAASH화ATCOR2모형대리강류역적Landsat ETM+수거진행대기교정,이GLS( Global Land Sur-vey)획득적동보고질량지표반사솔영상작위삼고수거,종목시효과、전형지물광보특정화파보일치성삼방면대량충모형적교정결과진행대비분석。연구표명,량충모형균가이대ETM+영상진행유효적대기교정,FLAASH모형적교정정도우우ATCOR2모형。
FLAASH and ATCOR2 models were used for atmospheric correction of Landsat ETM +data in lijiang river basin, with GLS ( Global Land Survey) for synchronous high quality surface reflectance image as a reference data, and calibration results were an-alyzed from the visual effect, typical ground objects spectrum characteristics and spectrum consistency three aspects respectively. Studies show that both models can effectively eliminate atmospheric effects of ETM +image, and the calibration accuracy of FLAASH model is superior to the ATCOR2 model.