CAJ | 학술논문

利用张掖市大野口马莲滩草地站测得的2009年5月6—7日（8：15～18：45）2天不同时次的地表总辐射数据，对运用2种辐射传输模型SBDART和6S分别模拟计算获得的地表总辐射结果进行比较，验证评价其模拟精度，用大气理论分析工具对影响模拟结果的大气参数进行敏感度分析．结果表明，在天气良好状况下， SBDART模型和6S模型都是可靠的大气校正模型，但SBDART模型模拟的精度（绝对误差为0.02％～4.97％）比6S模型模拟的精度（绝对误差为－0.05％～12.66％）更高，可以更精确地反演地表真实反射率；在有云条件下，SBDART模型模拟总辐射曲线与实测总辐射曲线走势相近．通过敏感度分析得到各种大气参数对地表总辐射的具体影响程度，包括大气模式、云参数、气溶胶等．
이용장액시대야구마련탄초지참측득적2009년5월6—7일（8：15～18：45）2천불동시차적지표총복사수거，대운용2충복사전수모형SBDART화6S분별모의계산획득적지표총복사결과진행비교，험증평개기모의정도，용대기이론분석공구대영향모의결과적대기삼수진행민감도분석．결과표명，재천기량호상황하， SBDART모형화6S모형도시가고적대기교정모형，단SBDART모형모의적정도（절대오차위0.02％～4.97％）비6S모형모의적정도（절대오차위－0.05％～12.66％）경고，가이경정학지반연지표진실반사솔；재유운조건하，SBDART모형모의총복사곡선여실측총복사곡선주세상근．통과민감도분석득도각충대기삼수대지표총복사적구체영향정도，포괄대기모식、운삼수、기용효등．
This paper compared the meteorological data observed in the Grassland station of Dayekou Malian tan in May 6 th—7 th 2009 (8∶15 ~ 18∶45) , with surface solar total radiation data which is simulated respectively by 6S and SBDART models , then verified and assessed the calculation accuracy of solar total radiation . Then SBDART model is used to conduct sensitivity analysis for analyzing the impacts of various atmospheric parameters on the simulation results . The resuts showed that :in the condition of good weather and lacking of specific atmospheric parameters for every time ,both 6S and SBDART models are reliable for atmospheric correction of TM image . However , the accuracy of SBDART is higher than 6S model . The absolute error of SBDART is 0.02% ~4.97% ,and its value of 6S is -0.05% ~12.66% , respectively Thus ,SBDART model is superior to 6S model for the quantitative analysis and inversion ;the specific influence level of every atmospheric parameter to radiation , such as atmospheric model , cloud , and aerosol et al is obtained by sensitivity analysis . This study provides a further scientific basis for higher precision of atmospheric correction utilizing SBDART model in TM remote sensing image over the study area .