Browsed by
Tag: raster analysis

Change in Built-up Area in the City of Johannesburg Metropolitan Municipality (2014-2018)

Change in Built-up Area in the City of Johannesburg Metropolitan Municipality (2014-2018)

This map was begun by following a tutorial, then extended. The tutorial was to use a change assessment dataset to identify urban growth patterns in the city of Johannesburg from 2014 to 2018. Once done, I added OSM features including major highways and rails. I calculated the raster area for the 3 classes and added a pie chart. Finally, I designed the print layout.

Advanced Raster Analysis (QGIS3) — QGIS Tutorials and Tips

NVDI Analysis and Grid-based Visualization

NVDI Analysis and Grid-based Visualization

Description: This map shows the distribution of surface vegetation in Thai Nguyen, Vietnam. An NVDI analysis was done using Landsat 8 images. The resulting raster was then made into a vector grid by overlaying a grid and using the zonal statistics tool. Finally, the primary roads and motorways are OSM data.

Tools: QGIS

Data: Landsat 8, OSM