Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 15, issue 4
Articles | Volume 15, issue 4
https://doi.org/10.5194/nhess-15-723-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/nhess-15-723-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 15, issue 4
Research article
 | 
02 Apr 2015
Research article |  | 02 Apr 2015

Amalgamation in landslide maps: effects and automatic detection

O. Marc and N. Hovius

Viewed

Total article views: 5,028 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
2,254 2,612 162 5,028 198 157 184
  • HTML: 2,254
  • PDF: 2,612
  • XML: 162
  • Total: 5,028
  • Supplement: 198
  • BibTeX: 157
  • EndNote: 184
Views and downloads (calculated since 16 Dec 2014)
Cumulative views and downloads (calculated since 16 Dec 2014)
Latest update: 17 Nov 2025
Download
Short summary
We present how amalgamation (i.e. the mapping of several adjacent landslides as a single polygon) can distort results derived from landslide mapping. Errors on the total landslide volume and power-law exponent of the area–frequency distribution, resulting from amalgamation, may be up to 200 and 50%, respectively. We present an algorithm based on image and DEM analysis, for automatic identification of amalgamated polygons, allowing one to check and correct landslide inventories faster.
Read more
Share
Altmetrics
Final-revised paper
Preprint