Efficient use of an improved radiative transfer code to simulate near-global distributions of satellite-measured radiances

Takashi Y. Nakajima, Hiroshi Murakami, Masahiro Hori, Teruyuki Nakajima, Teruo Aoki, Tomohiko Oishi, Akihiko Tanaka

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

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 processseparation 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 2% error for absorbing channels by use of this method.

Original languageEnglish
Pages (from-to)3460-3471
Number of pages12
JournalApplied Optics
Volume42
Issue number18
DOIs
Publication statusPublished - Jan 1 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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