Least Cost Path Analysis

[Edel Sheerin]

Hello!

I have been working on calculating least cost path analysis & I'm just looking to see if what I've done is correct.

 

My goal is to calculate least cost path for multiple sets of coordinates within the Southern Ocean (hence I am using the QGIS Quantarctica package).

 

I have a cost surface raster of the ocean and calculated the LCP for cases where I have x2 sets of coordinates.

However, my remaining dataset contains paths with 3-5 coordinates. For these, I have used the iterative function in LCP to generate multiple least cost paths. 

In the attributes table there is a cost for each segment of a given path - but no total cost for the path, so I've added these together to get the total cost of each path and then I assume the path with the lowest combined total is the most optimal path?

Thanks in advance,

Edel