Skip to content

Commit

Permalink
Update README.md
Browse files Browse the repository at this point in the history
  • Loading branch information
Alexanderariza authored Nov 17, 2020
1 parent ea03a60 commit 2f65ca0
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion README.md
Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ Landslides are a geological hazard which can cause extreme damage to infrastruct

The outcomes are shown according to R:G:B composite image where the yellow color represents bare soils, while orange and brown colors are linked to surficial soils or debris slides, which have suffered a remotion or emplacement motion. Particularly, for an active landslide, both colors matching with vertical erosion towards the proximal area of the landslide (headwerd) or over talud deposits.

**Landslide detection for rapid Mapping layer exported from [EO Browser](https://apps.sentinel-hub.com/eo-browser/?zoom=16&lat=15.37631&lng=-90.53612&themeId=DEFAULT-THEME&datasetId=S2L2A&fromTime=2020-11-10T00%3A00%3A00.000Z&toTime=2020-11-10T23%3A59%3A59.999Z&visualizationUrl=https%3A%2F%2Fservices.sentinel-hub.com%2Fogc%2Fwms%2Fbd86bcc0-f318-402b-a145-015f85b9427e&evalscript=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%2BMC44KXx8KE5EVkk8MC4xNSkpewogIHJldHVyblsxLjUsMC43LC0xXQp9ICAKaWYgKE5EVkk%2BMC4yNSl7CiAgcmV0dXJuIFswICwgMC4yKk5EVkksIDBdCn0KZWxzZSB7CiByZXR1cm4gWzMuNSpic2ksIDAuMywgMF0KfQoKfQoK#custom-script) on a 3D model in Google Earth**
**Landslide detection for rapid mapping KML layer exported from [EO Browser](https://apps.sentinel-hub.com/eo-browser/?zoom=16&lat=15.37631&lng=-90.53612&themeId=DEFAULT-THEME&datasetId=S2L2A&fromTime=2020-11-10T00%3A00%3A00.000Z&toTime=2020-11-10T23%3A59%3A59.999Z&visualizationUrl=https%3A%2F%2Fservices.sentinel-hub.com%2Fogc%2Fwms%2Fbd86bcc0-f318-402b-a145-015f85b9427e&evalscript=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%2BMC44KXx8KE5EVkk8MC4xNSkpewogIHJldHVyblsxLjUsMC43LC0xXQp9ICAKaWYgKE5EVkk%2BMC4yNSl7CiAgcmV0dXJuIFswICwgMC4yKk5EVkksIDBdCn0KZWxzZSB7CiByZXR1cm4gWzMuNSpic2ksIDAuMywgMF0KfQoKfQoK#custom-script) on a 3D model in Google Earth**
<img src='./Img/gifland(1).gif' alt='Comparison of methodologies' style="display: block; margin-right: 5px auto 5px auto; width: 100%;"></img>

The different tests carried out showed that the uso of BSI, NDVI and NDWI in combination with the B11 reflectance are sufficient to identify the traces of the mass removal processes. In the case of the index, the BSI alone does not make it possible to characterize the features investigated that do not correspond solely to an absence of active vegetation, especially in zones with reactivation of the vegetation. Therefore, the temporal values (pre and post) of the BSI need to be taken into account.
Expand Down

0 comments on commit 2f65ca0

Please sign in to comment.