TephraDB_Prototype_ver1.3

This is the updated tephra fall distribution map dataset for assessing tephra fall hazards (thickness in mm) in Japan. This database was created using the database of Suto et al. (2007) (https://www.jstage.jst.go.jp/article/bullgsj/58/9-10/58_261/_article/-char/ja/) with ArcGIS. This version is a revised version of 1.2. Some more errors in calculations of thicknesses were found in Hokkai_Koma_1996, Usu_2000_3_31, Usu_2000_4_1_2, Usu_2000_4_2, Usu_2000_4_4 in ver1.1 and ver1.2. Please use this version instead of ver1.1 and 1.2. We have confirmed that this error does not affect the discussion in Uesawa et al. (2022). The exact method is available in Uesawa et al. (2022) appliedvolc.biomedcentral.com/articles/10.1186/s13617-022-00126-x. Please find the scripts to create the hazard curve at https://github.com/s-uesawa/Prototype-TephraDB-Japan. The coordinate ranges handled in this database are as follows:<br> 125E/150E/25N/47N (JGD2000) Acknowledgments: Comments from Dr. K. Komura@CRIEPI were helpful.