The WaterwayMap is a visually lovely interactive map that makes use of OpenStreetMap information to visualise the construction and stream of rivers world wide.
At its core, WaterwayMap makes use of the directional information of waterways recorded in OpenStreetMap (OSM). In OSM, waterways are represented as methods – ordered lists of nodes that point out the sequence and course of stream. WWM makes use of this directional info and calculates extra hydrological particulars to offer a complete visualization of water techniques.
Due to a current replace by Amanda McCann, the map’s creator, the widths of rivers now characterize cumulative stream lengths. Because of this the width of a river phase on the map displays the entire cumulative size of all upstream waterways feeding into that phase. Thicker traces characterize rivers with bigger upstream networks, equivalent to main rivers fed by in depth tributary techniques.
The colours of the rivers point out grouped waterways and are randomly assigned. These colours assist customers visually separate completely different river techniques or watersheds on the map. Every colour corresponds to a linked community of waterways, sometimes a river and its tributaries. This enables customers to simply determine which rivers and streams belong to the identical system.
It’s also possible to discover watersheds on the World Watersheds interactive map. By clicking anyplace on the map, you may view a visualization of the upstream watersheds calculated out of your chosen location. The map allows you to rapidly see the origin and vacation spot of water at any level on Earth.
The screenshot above reveals the huge 1 million km² watershed flowing from the Andes into the Solimões River in Brazil. To discover the world’s largest watersheds, you may click on downstream within the Amazon Basin (the world’s largest watershed) or within the Mississippi River Watershed in america.
In case you’re thinking about tracing the stream of a watercourse, you may choose the ‘downstream’ possibility on the map. This may show the stream path of the chosen river out of your chosen location to the ocean. Different choices mean you can obtain watershed information in geoJSON, shapefile, or KML codecs.
Additionally See:
River Runner and River Runner World – makes use of elevation and hydrology information to calculate and animate the possible final journey of a drop of water from any location to the ocean.
