An environmental management team in Nigeria is configuring a Geographic Information System (GIS) to analyze continuous geographical phenomena across a river basin, such as elevation gradients and soil moisture distribution. Which of the following GIS data models is most suitable for accurately representing these continuous spatial phenomena?
- The raster data model, because it represents continuous surface features through an array of grid cells, each storing a specific value.Cevap
- BThe vector data model, because doubling grid linear dimensions automatically quadruples areal detail for continuous surfaces.
- CThe attribute data table model, because spatial location is defined by inverting representative fractions into ground distance ratios.
- DThe topological network model, because continuous terrain features are defined primarily as clustered nucleated points.
Cevap
The raster data model is most suitable because it represents continuous surface features through an array of grid cells, each storing a specific attribute value.
The raster data model divides geographical space into a continuous grid of cells (pixels), where every cell stores a measurement representing phenomena that vary continuously across a surface, such as land elevation, temperature, or moisture levels.
Adım Adım Çözüm
Anahtar Kavram
Raster vs. Vector GIS Data Models for Continuous and Discrete Phenomena
Tahmini Süre:1m 0s