Q1. Buttons on all pages do not respond.

. Activate JavaScript and cookies in your browser if the buttons to not respond or an error occurs when the button is clicked.

Q2.When viewing the KML file in Google Earth, there are areas where the grids are missing.

. This phenomenon takes place when the grids are hidden under the forest or building in the 3D photo model delivered by Google Earth. Please uncheck the "3D Buildings" in the layer window.

Q3.When I open the downloaded data in Excel, the characters are garbled.

. Since the character code of the file is UTF-8, the characters will be garbled. Please open it with UTF-8 compatible one such as Notepad instead of Excel.

Q4. How do I send questions and opinions?

. Please send an e-mail to the following e-mail address.