Difference between revisions of "Talk:Generating Wetness Indices for Watersheds in GRASS"
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| + | Suggestions for further refinements of this tutorial: |
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| − | The introduction could use some references. |
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== In "Setting up your workplace" section - re: Importing DEM data == |
== In "Setting up your workplace" section - re: Importing DEM data == |
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What format was the original data in? Do you have general tips for users for getting and importing this kind of data? |
What format was the original data in? Do you have general tips for users for getting and importing this kind of data? |
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| + | == Re: coordinates used, e.g. when specifying an outlet location == |
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| + | * 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 - could make instructions more general |
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| + | == Slope == |
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| + | When you generate slope maps, they can be in degrees or percent slope. Point this out to the user? |
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| + | == Wetness Index == |
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| + | * 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) |
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Latest revision as of 09:28, 5 March 2012
Suggestions for further refinements of this tutorial:
Contents
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 - could make instructions more general
Slope
When you generate slope maps, they can be in degrees or percent slope. 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)
