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Updated: Sep 23, 2026
Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
Efficient use of an improved radiative transfer code to simulate near-global distributions of satellite-measured
Takashi Y Nakajima1, Hiroshi Murakami, Masahiro Hori
1Earth Observation Research Center, National Space Development Agency of Japan, Harumi Island Triton Square, Tokyo, Japan. nakajima@eorc.nasda.go.jp
Abstract:
Two new extension modules that give the water-leaving radiance from the ocean and the snow bidirectional reflectance distribution function were implemented in the latest radiative transfer code. In addition, to simulate the near-global distributions of satellite-measured radiances by using the improved radiative transfer code, we tested and applied the look-up table method together with the process-separation technique of the radiative transfer calculation. The computing time was reduced from 1 year to 20 s to simulate one channel, one scene of the Global Imager image by use of an Alpha 21164A-2 (600-MHz) machine. The error analyses showed that the radiances were simulated with less than 1% error for the nonabsorbing visible channels and approximately 2% error for absorbing channels by use of this method.
