Journal cover Journal topic
Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
Geosci. Model Dev., 5, 449-455, 2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Development and technical paper
03 Apr 2012
"Gtool5": a Fortran90 library of input/output interfaces for self-descriptive multi-dimensional numerical data
M. Ishiwatari1, E. Toyoda2, Y. Morikawa3, S. Takehiro4, Y. Sasaki5, S. Nishizawa6, M. Odaka1, N. Otobe7, Y. O. Takahashi6, K. Nakajima8, T. Horinouchi9, M. Shiotani10, Y.-Y. Hayashi6, and Gtool development group11 1Hokkaido University, Graduate school of Science, Sapporo, Japan
2Japan Meteorological Agency, Tokyo, Japan
3Parmy, Inc., Japan
4Kyoto University, Research Institute for Mathematical Sciences, Kyoto, Japan
5Kyoto University, Department of Mathematics, Kyoto, Japan
6Kobe University, Graduate school of Sciences, Kobe, Japan
7Fukuoka University, Faculty of Science, Fukuoka, Japan
8Kyushu University, Faculty of Science, Fukuoka, Japan
9Hokkaido University, Graduate school of Environmental Earth Science, Sapporo, Japan
10Kyoto University, Research Institute for Sustainable Humanosphere, Kyoto, Japan
11GFD Dennou Club, Japan
Abstract. A Fortran90 input/output library, "gtool5", is developed for use with numerical simulation models in the fields of Earth and planetary sciences. The use of this library will simplify implementation of input/output operations into program code in a consolidated form independent of the size and complexity of the software and data. The library also enables simple specification of the metadata needed for post-processing and visualization of the data. These aspects improve the readability of simulation code, which facilitates the simultaneous performance of multiple numerical experiments with different software and efficiency in examining and comparing the numerical results. The library is expected to provide a common software platform to reinforce research on, for instance, the atmosphere and ocean, where a close combination of multiple simulation models with a wide variety of complexity of physics implementations from massive climate models to simple geophysical fluid dynamics models is required.

Citation: Ishiwatari, M., Toyoda, E., Morikawa, Y., Takehiro, S., Sasaki, Y., Nishizawa, S., Odaka, M., Otobe, N., Takahashi, Y. O., Nakajima, K., Horinouchi, T., Shiotani, M., Hayashi, Y.-Y., and Gtool development group: "Gtool5": a Fortran90 library of input/output interfaces for self-descriptive multi-dimensional numerical data, Geosci. Model Dev., 5, 449-455,, 2012.
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