Lecture 8 Flashcards
1
Q
4 ways of remote sensing
A
- cameras that use visisble light /radiation
- orbital platforms
- satellite detectors
- satellite images
2
Q
how to deal with large raster data files in data display
A
pyramiding - aggregation into coarser resolution dataset
3
Q
rasterization
A
the process of converting from vector to raster
4
Q
vectorization
A
raster -> vector
5
Q
4 types of raster data analysis
A
- local
- focal
- zonal
- global
6
Q
3 types of raster spatial data analysis
A
- multicriteria evaluation (MCE)
- neighbourhood analysis
- 3D surfaces
7
Q
MCE (3)
A
- combines data based on importance
- importance is weighted
- data layers and weights combined by mathematical problems
8
Q
neighbourhood/focal analysis (3)
A
- local vs global
- buffer
- first law of geography
9
Q
3D surfaces
A
digitam elevation model (DEM) - raster model
