Development of gas absorption tables and an atmospheric radiative transfer package for applications using the advanced himawari imager

Miho Sekiguchi, Hironobu Iwabuchi, Takashi M. Nagao, Teruyuki Nakajima

Research output: Contribution to journalArticle

Abstract

We developed an atmospheric gas absorption table for the Advanced Himawari Imager (AHI) based on the correlated k-distribution (CKD) method with an optimization method, which was used to determine quadrature weights and abscissas. We incorporated the table and band information of the AHI into a multi-purpose atmospheric radiative transfer package, RSTAR. We updated the package so that users could easily specify the satellite and band number. Use of this update made it possible to carry out calculations rapidly and accurately using the optimized CKD method. RSTAR is easy for beginners to use and facilitates comparison of results. Cloud retrieval tests using different numbers of quadrature points showed that cloud retrievals could be significantly affected by the CKD model’s accuracy.

Original languageEnglish
Number of pages1
JournalJournal of the Meteorological Society of Japan
Volume96B
DOIs
Publication statusPublished - 2018 Jan 1

Keywords

  • Atmospheric gas absorption
  • Radiative transfer
  • Satellite data analysis

ASJC Scopus subject areas

  • Atmospheric Science

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