A program for ground temperature data generation based on the expanded amedas weather CD-ROMS

The Expanded AMeDAS Weather Data CD-ROMs would be available and may be utilized to conduct building simulations. However, the CD-ROMs do not include temperature data for thermally undisturbed ground. Considering that such data constitute important information for thermal design, a program having graphical user interface is developed for generatation of hourly ground temperatures based on the CD-ROMs’ data. This paper describes the numerical methods applied for the data generation, the scheme of the program, and the database of soil thermal properties that works with the program. The accuracy of the generated data is also discussed. The evaluation result tells that the daily mean ground temperatures can be generated with the accuracy of 2.5K at the maximum. The program is designed to be a useful thermal design tool by incorporating user friendly interfaces and accurate numerical methods, and is planned to be bundled with the release of the CD-ROMs.