Mesh Generation and Delaunay Triangulation Explained | GIS & Hydrology Applications | QGIS
In this video, I explain the concept of mesh generation and its importance in geospatial analysis and modeling. Meshes divide space into smaller, connected elements (triangles, quadrilaterals, etc.), allowing us to represent complex surfaces such as rainfall, terrain, or hydrological data.
I also demonstrate how Delaunay triangulation creates well-shaped triangles that are widely used in:
Rainfall interpolation (using station data)
Terrain modeling (TINs)
Flood and hydrology simulations
Environmental impact assessments
By the end of the video, you will understand:
✅ What a mesh is
✅ Why Delaunay triangulation is important
✅ How meshes support smooth and reliable interpolation
✅ Applications in GIS, hydrology, and environmental studies
This tutorial is especially useful for students, researchers, and professionals working in GIS, remote sensing, water resources, and environmental modeling.
Please refer these videos also:
• XARRAY: Extract Rainfall Time Series from ...
• XARRAY:Daily Rainfall Analysis from netCDF...
• XARRAY: Monthly and Seasonal rainfall data...