CAJ | 학술논문

基于环境一号卫星（ HJ－1）遥感观测数据，采用改进的暗目标算法和深蓝算法分别对暗像元、亮像元地表的气溶胶光学厚度（ AOD）进行反演，并将其结果与MOD04产品对比。结果表明：二者反演的AOD空间变化特征较一致，相关系数达0．874，HJ－1星反演结果有更高的空间分辨率。当AOD值＜0．2时，HJ－1星反演结果可靠性较低；当AOD值在0．2～0．8之间时，HJ－1星CCD相机反演气溶胶的结果与MOD04产品最相近，二者相对误差＜10％；当AOD值在0．8～1．5之间时，HJ－1星反演结果相对MOD04产品显著偏高；当AOD值＞1．5时，HJ－1星反演结果相对MOD04产品偏低。
기우배경일호위성（ HJ－1）요감관측수거，채용개진적암목표산법화심람산법분별대암상원、량상원지표적기용효광학후도（ AOD）진행반연，병장기결과여MOD04산품대비。결과표명：이자반연적AOD공간변화특정교일치，상관계수체0．874，HJ－1성반연결과유경고적공간분변솔。당AOD치＜0．2시，HJ－1성반연결과가고성교저；당AOD치재0．2～0．8지간시，HJ－1성CCD상궤반연기용효적결과여MOD04산품최상근，이자상대오차＜10％；당AOD치재0．8～1．5지간시，HJ－1성반연결과상대MOD04산품현저편고；당AOD치＞1．5시，HJ－1성반연결과상대MOD04산품편저。
Based on the data of HJ-1 satellite,aerosol optical depth ( AOD) over dark pixel and light pixel land surfaces was inversed by dark dense vegetation (DDV)method and deep blue algorithm(DBA),and was compared against MOD04 .The results showed that the spatial variation of AOD from HJ-1 inversion and MOD04 was more consistent,the correlation coefficient reached 0.874,the results of HJ-1 inversion has higher spatial res-olution.When the AOD value was less than 0.2,the reliability of HJ-1 inversion was low.When the AOD value was between 0.2 and 0.8, HJ-1 CCD camera aerosol retrieval results showed the most similar to that with MOD04, the relative error of the two was less than 10%.While the AOD value was between 0.8 and 1.5,HJ-1 inversion results showed significantly higher than MOD04.When the AOD value was higher than 1.5,HJ-1 inver-sion results were lower than that of MOD04.