Скачать или смотреть Flow Direction and Flow Accumulation in ArcGIS Pro using DEM

Learn how to calculate flow direction and flow accumulation from a Digital Elevation Model (DEM) in ArcGIS Pro. This step-by-step guide covers hydrological modeling, stream extraction, and watershed analysis using spatial analyst tools.

Flow Direction and Flow Accumulation using ArcGIS Pro
Flow Direction refers to the direction water will naturally flow over a surface, typically derived from a Digital Elevation Model (DEM). It's a foundational step in hydrological modeling, especially for identifying watersheds, stream networks, and drainage patterns.

Flow Accumulation calculates how much water (or flow) passes through each cell in a DEM, assuming water flows downhill according to a flow direction raster (like the one generated with D8).