Description/background information about Salmon River exmaple

[YifanCheng]

A little background information about the example we list in RBM documentation website would be helpful.

This is the comment I get from Darri:
Some slight information about the example case (e.g. map of Salmon river). Doesn‘t have to be much, just to give some physical info on the example

[jyearsley]

The Salmon River example (Figure 1) in the tutorial is taken from the research reported in Yearsley(2012). Yearsley(2012) simulates water temperatures in the Salmon River basin for a network gridded at 1/16th degrees let/long. In the example problem, the Salmon River basin is gridded at 1/2 deg lat long for purposes of simplicity.

Yearsley J. 2012. A grid-based approach for simulating stream temperature. Water Resources Research 48. DOI: 10.1029/2011WR011515.

[YifanCheng]

Thanks John!