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

4.30 (22 reviews)
Udemy
platform
English
language
Science
category
140
students
7 hours
content
Mar 2022
last update
$84.99
regular price

What you will learn

Automatically Generate training and testing data using Grid or Slope units for entire study area with DEM (Digital elevation model ) only

Easily able to create your own modeler tool in QGIS environment

Automatically generate free-landslide areas for Grid units and slope units

Automatically generate training data using Grid unit and slope units

Understand and apply the different mapping units in susceptibility mapping

Learn how to easily choose the wright and appropriate pixel dimension for your map

Hydrological analysis to produce slope units out of streams network intersections

Description

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:


  • To introduce into powerful function of processing tool boxes of QGIS

  • Install free processing tools inside QGIS

  • To understand the procedure of extraction of Grid units (GU) and morphological Slope units (SU)

  • 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

  • To easily run procedure with Less than 5 steps for each type of mapping techniques (GU and SU).


***** February 2022 UPDATE !!  *******

We have updated the "Model tools" named LaGriSU (Landslide-Grid-and-Slope-Units-QGIS_ToolPack), the current version :

  1. Better performance and less time in processing

  2. it works on QGIS versions  3.10, 3.12, 3.14 (64 bit & 32 bit) tested on both Windows and Linux

  3. More robust hypothesis regarding to define landslide-free area (zones): I added 2 techniques | 1) Buffer zones, and 2) Slope value threshold

  4. Both inventory of point and polygon features can be used

  5. Comprehensive plots: Box plot to show the summary of different values statistics within landslides locations

  6. Comprehensive summary reports: Summary of values statistics within landslides locations


     "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.

Keywords: QGIS, GIS, automatic, tools, modeler, mapping, susceptibility

Screenshots

How to Extract Landslide Slope and Grid Unit Using QGIS only - Screenshot_01How to Extract Landslide Slope and Grid Unit Using QGIS only - Screenshot_02How to Extract Landslide Slope and Grid Unit Using QGIS only - Screenshot_03How to Extract Landslide Slope and Grid Unit Using QGIS only - Screenshot_04

Content

Introduction and theoretical background

Introduction to mapping units theory and practice
Grid and Terrain based mapping units
Aspect and Slope mapping units; cons and pros
Slope mapping units: Methodology processing

Modeler tools download and Software technical settings

Settings: specifications and technical issues
Attachments: Load the Models script and Data into QGIS

working with QGIS environment

QGIS: Data entry, spatial reference setting and models editing
Graphical modeler in QGIS: Build, edit and run a modeler tool

Grid based unit tools

Grid units(STEP1) : Run modeler to create free (safe area) landslides data
Grid units (STEP 2) : Run modeler to integrate thematic maps with samples data
Grid units (STEP 3): Transfer landslides thematic integration results into Excel

Slope based mapping unit modeler tools

Slope units (1): Run modeler generate Slope units for entire study area
Slope units (2): Run modeler to create free (safe area)landslide data
Slope units (3): Run modeler to integrate thematic maps with train/test data
Slope units (4): Transfer integrated thematic maps with train/test data to Excel
Slope units (5): Transfer integrated thematic maps with train/test data to Excel

Summary: Add and run the model with your own data

Modeler tool editing: How to edit, rename and add your own thematic maps
Course summary and to start now the application using your own data

Reviews

Indra
March 9, 2022
Instead of developing models individual feature extraction methods should have have been explained. ArcGIS methods are more simple they should have been also compared.
Ishika
February 26, 2021
Perfectly cleared my understanding of models and the step-by-step guide was definitely beneficial. Highly recommended!
Paulo
January 10, 2021
This course met my expectations and fulfilled what was proposed. In addition, Omar Althuwaynee gives you the ways to create your own models giving you autonomy for other procedures that interest you. I recommend it!
Badal
October 11, 2018
I am glad to learn this course and complete it. For me, this is one of the best courses ever. As an Engineering Geologist, I learned a lot technically and logically which also helps me to extend my research skills. Thank you so much Omar Sir. Keep inspiring us. Regards, Badal

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1839274
udemy ID
8/5/2018
course created date
3/22/2020
course indexed date
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