Hydrological Network Design
Minimum Hydrological Stations Density as per WMO
|Type of Region
|Density for Minimum Network||Tolerable Density in Difficult Conditions|
|Flat regions of temperate Mediterranean and tropical zones.
|Mountainous regions of temperate, Mediterranean and tropical zones.
|Small mountainous islands with very irregular precipitations very dense hydrographic network.
|Arid and polar zones
The detailed Network Design criteria and guidelines are available in the Network Design Manual [Weblink