How to Extract Landslide Slope and Grid Unit Using QGIS only
LaGriSU: QGIS Tools of Grid Units and Geo-Morphological Slope Units Extraction for Landslides events Inventory
- Description
- Curriculum
- FAQ
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Welcome to my recent developed tools, that will help you to learn how to build apply sophisticated steeps using easy built in tools.
Along this course, I (Omar F. Althuwaynee, PhD in GIS and Geomatics engineering) will help you to:
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To introduce into powerful function of processing tool boxes of QGIS
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Install free processing tools inside QGIS
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To understand the procedure of extraction of Grid units (GU) and morphological Slope units (SU)
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To produce training and testing data AUTOMATICALLY, to be used later as input for data mining models like logistic regression or ANN and more. in easy steps
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To easily run procedure with Less than 5 steps for each type of mapping techniques (GU and SU).
“QGIS as open source has very simple interface and FREE of charge available, therefore it is the great and powerful tool especially in third world based universities and not funded students.”
At the the end of this course, you will be easily and efficiently able to use automatic process to build training and testing data for preparing landslide susceptibility mapping, using modeler of QGIS open source FREE software analysis capability.
***** February 2022 UPDATE !! *******
We have updated the “Model tools” named LaGriSU (Landslide-Grid-and-Slope-Units-QGIS_ToolPack), the current version :
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Better performance and less time in processing
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it works on QGIS versions 3.10, 3.12, 3.14 (64 bit & 32 bit) tested on both Windows and Linux
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More robust hypothesis regarding to define landslide-free area (zones): I added 2 techniques | 1) Buffer zones, and 2) Slope value threshold
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Both inventory of point and polygon features can be used
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Comprehensive plots: Box plot to show the summary of different values statistics within landslides locations
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Comprehensive summary reports: Summary of values statistics within landslides locations
***** March 2023 UPDATE !! ******* on GitHub
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Stability issues when using large areas
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Errors in geometries and dissolve
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Slope units: binary sampling (1,0) count of training and testing is more closer in term of 1:1 ratio
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Slope units: small polygons (pixel shapes) were removed
Using Github link
(search for /Althuwaynee/LaGriSU_Landslide-Grid-and-Slope-Units-QGIS_ToolPack)
Keywords: QGIS, GIS, automatic, tools, modeler, mapping, susceptibility
Modeler tools download and Software technical settings
working with QGIS environment
Grid based unit tools
Slope based mapping unit modeler tools
Summary: Add and run the model with your own data
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12
Slope units (1): Run modeler generate Slope units for entire study area -
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Slope units (2): Run modeler to create free (safe area)landslide data
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14
Slope units (3): Run modeler to integrate thematic maps with train/test data
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15
Slope units (4): Transfer integrated thematic maps with train/test data to Excel
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16
Slope units (5): Transfer integrated thematic maps with train/test data to Excel
How long do I have access to the course materials?
You can view and review the lecture materials indefinitely, like an on-demand channel.
Can I take my courses with me wherever I go?
Definitely! If you have an internet connection, courses on Udemy are available on any device at any time. If you don't have an internet connection, some instructors also let their students download course lectures. That's up to the instructor though, so make sure you get on their good side!
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Course details
Video
7 hours
Certificate of Completion
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