NIH-DHAARA - Catchment Details

Catchment Characteristics

Enter the physical characteristics of the catchment. These parameters are used to derive the Synthetic Unit Hydrograph from the CWC sub-zonal regression equations.

Physical Parameters

Catchment Area ($A$) *

km²

Area must be a positive number.

Main Stream Length ($L$) *

Length must be a positive number.

Length to Centroid ($L_c$) *

Centroid length must be positive.

Equivalent Stream Slope ($S$) *

m/km

Slope must be positive.

CWC Sub-Zone Selection

CWC Sub-Zone *

Please select a CWC Sub-Zone.

OR Detect Zone from Coordinates

The Synthetic Unit Hydrograph is derived from these inputs alone. You will configure the design storm on the next step.

CWC Homogeneous Sub-Zones Map

Hydrometeorological homogeneous subzones as per CWC. Click on the map thumbnail below to open the interactive viewer where you can zoom in/out and drag to pan.

Click to Zoom & Pan

Source: MANUAL ON ESTIMATION OF DESIGN FLOOD, March 2001, by Hydrology Studies Organisation, Central Water Commision.

Design Flood Hydrograph

Catchment Characteristics

Physical Parameters

CWC Sub-Zone Selection

CWC Homogeneous Sub-Zones Map