Catchment Basins
Definition
Catchment Basins are larger drainage areas comprising multiple interconnected catchments that collectively funnel water into a major water body such as a river system, lake, or ocean. These are hierarchical spatial units crucial for regional hydrological analysis and environmental governance.
Application
Used in water resource management, pollution control, and integrated basin management plans. Catchment basin mapping helps coordinate upstream and downstream stakeholders, manage aquatic ecosystems, and mitigate flood and drought risks.
FAQ
1. What is a catchment basin in GIS?
It is a spatial unit representing the total area from which water flows into a major outlet point, often comprising multiple smaller catchments.
2. What is a catchment basin in GIS?
They help model water flow, analyze risk zones, and design mitigation strategies like dams, levees, or retention ponds.
3. What is a catchment basin in GIS?
From local sub-basins to international river basins like the Amazon or Nile, classified based on size and drainage networks.
4. What is a catchment basin in GIS?
It enables data-driven decisions on land use, water allocation, ecosystem protection, and cross-border water agreements.
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