Drainage Area Calculator

This web app calculates the drainage for any valid clicked point on the map.

• Zoom into at least level 17 on your stream of interest. A blue streams layer will become visible. Streams are only delineated up to the 1 km² extent.
• Click on a stream pixel to calculate the drainage area. You must click on a blue pixel to get a result. Wait at least 30 seconds for the result to appear.
• This calculator is currently only functional for the Caroni River Basin.