@article{oai:tokyo-metro-u.repo.nii.ac.jp:00009443,
 author = {Iwasaki, Nobusuke and Hayashi, Kazunori and Tanaka, Toshihisa and Katori, Miyuki and Oguchi, Takashi},
 journal = {Geographical reports of Tokyo Metropolitan University},
 month = {},
 note = {Currently, various types of geospatial data are provided as open data and/or map tile data. This implies that geospatial data have become more barrier-free than older data with traditional licenses and formats. In this study, using open geospatial data, we developed a map algebra system usable with a web browser for evaluating areas suitable for vineyards. We selected Nagano Prefecture as the research area for testing the system where many farmers recently started viticulture. The data used in the system are geology, soil, slope gradient, slope aspect, annual mean temperature, and annual mean maximum and minimum temperatures. These data were converted to the Data Tile Map format, which was developed by The Geological Survey of Japan, AIST (National Institute of Advanced Industrial Science and Technology), Japan. FOSS4G (Free and Open Source Software for Geospatial) tools, such as QGIS, TileMill, and MBUtil were used to
prepare the data tiles. Map Algebra functions were implemented using the WebGL™ API (Application Programming Interface). The system was published in Github.},
 pages = {79--85},
 title = {Prototype of an assessment system for vineyard suitability},
 volume = {57},
 year = {2022}
}