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I'm a complete novice.
I am using QGIS but am open to trying anything else.

I am trying to make a map like the example at http://www.hydrosheds.org/.

HydroSHEDS provides void filled elevation, hydrologically conditioned elevation, drainage direction, flow accumulation, and a vector of rivers.

With this data I know I should be able to 'easily' output a map like the example.

As a complete beginner I am overwhelmed with the many different ways it seems like you can do this.

What is the most simple way to create an image like the example with this data?

Should I be using a different GIS software?

Should I be using a different data set?

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I use routinely the grass-qgis extension and its ''hydrological modelling tool'' to create, accumulation and direction raster and river vectors . have a look here: https://www.youtube.com/watch?v=pKn_CMhDMK0

cheers

  • Thanks for the link. I've figured out how to output the rivers using r.watersheds... but I cannot figure out how to account for stream order/size. Do you just output at different levels, change to vector, adjust the size on each one? – JVD Feb 12 '17 at 21:46

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