QGISHydro Webinar 3: Spatial Analysis using Map Algebra
In this series of 7 free webinars during the Corona Crisis, Kurt Menke and Hans van der Kwast demonstrate the 7 chapters of the book QGIS for Hydrological Applications - Recipes for Catchment Hydrology and Water Management.
In this webinar we demonstrate how to perform spatial analysis with raster data in QGIS using map algebra.
Join us next Friday from 9 pm CEST / 7 pm UTC at http://loc8.cc/qgishydro
The book is available at http://locatepress.com/hyd
0:00 Start QGISHydro Webinar 3
9:39 Introduction to demo map algebra
12:27 Start demo map algebra
18:05 Calculate boolean layer with raster calculator
20:51 Using the proximity (raster distance) tool
27:40 Settings of the Processing Toolbox
28:30 Reclassify raster by table
35:22 Calculate depth to water table
40:18 Combine all criteria with AND
42:55 Convert pixels to point vector
45:27 The Point Sampling tool
49:40 Styling the points
Watch video QGISHydro Webinar 3: Spatial Analysis using Map Algebra online, duration hours minute second in high quality that is uploaded to the channel Hans van der Kwast 04 April 2020. Share the link to the video on social media so that your subscribers and friends will also watch this video. This video clip has been viewed 7,363 times and liked it 136 visitors.
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