Super-rotation independent of horizontal diffusion reproduced in a Venus GCM

التفاصيل البيبلوغرافية
العنوان:	Super-rotation independent of horizontal diffusion reproduced in a Venus GCM
المؤلفون:	Norihiko Sugimoto, Yukiko Fujisawa, Nobumasa Komori, Hiroki Kashimura, Masahiro Takagi, Yoshihisa Matsuda
المصدر:	Earth, Planets and Space, Vol 75, Iss 1, Pp 1-9 (2023)
بيانات النشر:	SpringerOpen, 2023.
سنة النشر:	2023
المجموعة:	LCC:Geography. Anthropology. Recreation LCC:Geodesy LCC:Geology
مصطلحات موضوعية:	Venus atmosphere, Super-rotation, GCM, Horizontal diffusion, Geography. Anthropology. Recreation, Geodesy, QB275-343, Geology, QE1-996.5
الوصف:	Abstract Horizontal diffusion and resolution are important factors to generate and maintain the super-rotation in the general circulation model (GCM) because waves which transport angular momentum are sensitive to them. Here, we investigated how the super-rotation depends on the magnitude of horizontal hyper diffusion using a Venus atmospheric GCM with medium and high resolutions. In both the runs, we found a parameter range where the structure of fully developed super-rotation is almost independent of the magnitude of horizontal diffusion. Spectral analysis shows that unrealistically strong super-rotation is developed when medium-scale disturbances are dissipated by stronger horizontal diffusion. On the other hand, artificially weak super-rotation is also realized because spurious small-scale disturbances are accumulated when the horizontal diffusion is too weak. Graphical Abstract
نوع الوثيقة:	article
وصف الملف:	electronic resource
اللغة:	English
تدمد:	1880-5981
Relation:	https://doaj.org/toc/1880-5981
DOI:	10.1186/s40623-023-01806-7
URL الوصول:	https://doaj.org/article/88970126cd23443bbab6e5595e8586ae
رقم الانضمام:	edsdoj.88970126cd23443bbab6e5595e8586ae
قاعدة البيانات:	Directory of Open Access Journals

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الوصف
تدمد:	18805981
DOI:	10.1186/s40623-023-01806-7