ABSTRACT:

This ressource contains the dataset associated with the publication:
Controls on the grain size distribution of landslides in Taiwan: the influence of drop height, scar depth and bedrock strength.
https://doi.org/10.5194/esurf-2021-19

Please cite the paper when using this dataset.

The CSV files contains 28 grain size distribution, measured on 17 landslide deposits in Taiwan.

The KMZ file indicate the locations of these landslide deposits and the mapped polygon showing the geometry of the slides visible in satellite imagery of Google Earth.

Note that 4 landslides (LS-4, 9new, 13, 14) could not be accurately detected through satellite imagery, due to their small size and/or steep geometry, and existing polygons are for location only, but not representative of the geometry. A more accurate geometry estimated in the field can be found in the Table of the publication.

ABSTRACT:

This resource contains shapefiles which were the central dataset of Marc et al., 2015.

These shapefiles represent all new landslides in the epicentral areas of the 1999 Mw 7.6 Chi-Chi (Taiwan) earthquake.
The polygons are single landslide (avoiding amalgamation as much as possible) which appeared or extended substantially by comparing pairs of images.
The naming convention is containing the YEAR and Julian day of the acquisition of the first image then the Julian day of acquisition of the second image of the pair. This second date is lower than the first one when the pair is spanning from Year to Year +1. Period corresponding to typhoons with major landsliding are also named (Herb, Toraji, and Morakot).

Detailed description of the mapping procedure can be found in Marc et al., 2015 (Geology) which MUST be cited when using this resources.
Additional contextualization and discussion of these data can also be found in Marc et al., 2021 (BSSA).

Marc, O., Hovius, N., Meunier, P., Uchida, T., & Hayashi, S. (2015). Transient changes of landslide rates after earthquakes. Geology, 43, 883–886. https://doi.org/10.1130/G36961.1

Marc, O., Sens-Schonfelder, C., Illien, L., Meunier, P., Hobiger, M., Sawazaki, K., Rault, C. & Hovius, N. (2021). Towards using seismic interferometry to quantify landscape mechanical variations after earthquakes. Bulletin of Seismological Society of America, nd, 1–18, doi: 10.1785/0120200264