3 0 0 0 IR 同志社大学文化情報学部蔵『百人一首かるた』(歌意絵入り)四種 : 影印・翻字と考察(3)
- 著者
- 福田 智子 大久保 孝晃 伍 昆 胡 淑雲 Tomoko Fukuda Takaaki Okubo Kun Wu Shuyun Hu
- 出版者
- 同志社大学文化情報学会
- 雑誌
- 文化情報学 = Journal of culture and information science (ISSN:18808603)
- 巻号頁・発行日
- vol.15, no.2, pp.118-102, 2020-03
本稿は、同志社大学文化情報学部が所蔵する江戸時代に制作された『百人一首かるた』のうち、歌意絵入りかるた四種について、札の影印を掲載するとともに、翻字と、古注釈を参看した歌意絵の図柄に関する比較考察を行うものである。今回は、『百人一首』一二番から一六番までの札を取り上げる。資料紹介
3 0 0 0 OA Comparisons of δ-Two-Stream and δ-Four-Stream Radiative Transfer Schemes in RRTMG for Solar Spectra
- 著者
- Han Lin Feng Zhang Kun Wu Jing Xu
- 出版者
- Meteorological Society of Japan
- 雑誌
- SOLA (ISSN:13496476)
- 巻号頁・発行日
- vol.15, pp.87-93, 2019 (Released:2019-05-14)
- 参考文献数
- 35
- 被引用文献数
- 5
Five δ-two-stream and δ-four-stream schemes are compared in solar spectra using the Rapid Radiative Transfer Model for General Circulation Models Applications (RRTMG). By calculating the flux and heating rate in various atmosphere, it is found that, in accuracy, the δ-four-stream schemes overwhelmingly outperform the δ-two-stream schemes. The precision of adding algorithm of the δ-four-stream spherical harmonic expansion (δ-4SDA) is comparable to that of adding algorithm of the δ-four-stream discrete ordinates method (δ-4DDA). Furthermore, the accuracy of the adding algorithm of δ-Eddington approximation (δ-2SDA) is close to that of δ-two-stream approximation with Practical Improved Flux Method (δ-PIFM), while adding algorithm of δ-two-stream discrete ordinates method (δ-2DDA) produces the poorest results among the five approximate schemes. For the RRTMG model with radiative transfer calculation, the computational time of δ-4SDA is about 1.5 times that of δ-two-stream schemes, and the computational time of δ-4SDA is about 88% that of δ-4DDA.