著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) David G. Tarboton,A new method for the determination of flow directions and upslope areas in grid digital elevation models,Water Resources Research,0043-1397,American Geophysical Union (AGU),1997-02,33,2,309-319,https://cir.nii.ac.jp/crid/1362825894165196416,https://doi.org/10.1029/96wr03137