Talk:Generating Wetness Indices for Watersheds in GRASS

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Revision as of 13:37, 15 December 2010 by Smitch (talk | contribs) (→‎Wetness Index: new section)
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The introduction could use some references.

In "Setting up your workplace" section - re: Importing DEM data

What format was the original data in? Do you have general tips for users for getting and importing this kind of data?

Re: coordinates used, e.g. when specifying an outlet location

  • remember, the coordinates could be in other systems - in your project you used UTM (MTM?), so northings and eastings are appropriate, but there are other possibilities - this is important since you are not using a dataset that is generally available, so it would be better to try and anticipate what differences users of this tutorial might find using their own data

Slope

When you generate slope maps, they can be in degrees or percent slope. Which did you use? Should point this out to the user.

Wetness Index

  • would be useful to explain a bit more what you are trying to do here (what the index is used for), and why there is a 2.718282 in the formula (natural logarithm)