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辐射率
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[摄影测量]
从要素表面反射、从周围区域反射到光程中以及从像素区域上方的云反射的辐射。 每单位立体角和每单位辐射表面投影面积的辐射能通量密度的测量值,以每平方米和球面度的瓦数 (W·sr–1·m–2) 为单位进行测量,作为波长的函数。
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辐射
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