Question

In the context of hydrological modeling within GIS, a Digital Elevation Model (DEM) is crucial for:

• A. Determining soil texture and permeability.
• B. Estimating evapotranspiration rates.
• C. Delineating watersheds and analyzing flow direction.
• D. Measuring rainfall intensity directly.

Hint:

Use DEMs to analyze terrain-driven hydrological features like watersheds and stream networks.

Answer 1

The Correct Option is C

Digital Elevation Models (DEMs) represent terrain surfaces and are vital in hydrological GIS models. They help identify watershed boundaries and compute the flow direction and accumulation of water based on elevation data.