Topo Recompute
GTB.TopoRecompute History
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November 05, 2009, at 12:12 PM
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Threshold Parameter - The value will be used to identify pixels from the flowaccumulation grid which are supposed to be streams. Default value is 100. If stream network and subsequent derived terrain parameters need to be adjusted please used topowshd.
November 05, 2009, at 12:11 PM
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Allows for the re-computation of the stream-based terrain parameters of the topo script. Usually, the topo script is computed once, however on closer observation we find that the choosen stream flow threshold did not delineate the watersheds appropiate. Therefore, to recompute the TP parameters based on this threshold, use this routine.
November 02, 2009, at 05:37 PM
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%apply=img width="450" height="360" align="top"%elevres/elevation.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/elevres/elevation.jpg
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%apply=img width="450" height="360" align="top"%topo_recompute/command.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo_recompute/command_toporecompute.jpg
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%apply=img width="450" height="360" align="top"%topo/strnet.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo/strnet.jpg
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%apply=img width="450" height="360" align="top"%topo/strlnk.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo/strlnk.jpg
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%apply=img width="450" height="360" align="top"%topo/strord.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo/strord.jpg
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%apply=img width="450" height="360" align="top"%topo/wszm.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo/wszm.jpg
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%apply=img width="450" height="360" align="top"%topo/wshd.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo/wshd.jpg
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%apply=img width="450" height="360" align="top"%topo/wshda.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo/wshda.jpg
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%apply=img width="450" height="360" align="top"%topo/wszmax.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo/wszmax.jpg
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%apply=img width="450" height="360" align="top"%topo/wszmin.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo/wszmin.jpg
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%apply=img width="450" height="360" align="top"%topo/pctg1.jpg%%
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%width=80pct% http://www.ai-relief.org//functions/terrain/topo/pctg1.jpg
November 01, 2009, at 09:50 PM
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(:div input:)
'''INPUT '''
Input Data - Elevation
%apply=img width="450" height="360" align="top"%elevres/elevation.jpg%%
(:divend:)
(:div commandwindow:)
'''COMMAND '''
Command Call window with with stream threshold set to 25 cells
%apply=img width="450" height="360" align="top"%topo_recompute/command.jpg%%
(:divend:)
(:div results:)
'''RESULTS '''
Stream network
%apply=img width="450" height="360" align="top"%topo/strnet.jpg%%
Stream link network
%apply=img width="450" height="360" align="top"%topo/strlnk.jpg%%
Stream order
%apply=img width="450" height="360" align="top"%topo/strord.jpg%%
<
Stream Max Elevation
%apply=img width="450" height="360" align="top"%topo/wszm.jpg%%
Unique Watershed Id
%apply=img width="450" height="360" align="top"%topo/wshd.jpg%%
Watershed area
%apply=img width="450" height="360" align="top"%topo/wshda.jpg%%
Watershed Maximum Elevation
%apply=img width="450" height="360" align="top"%topo/wszmax.jpg%%
Watershed Minimum Elevation
%apply=img width="450" height="360" align="top"%topo/wszmin.jpg%%
Percentile as percentage of elevation range within Watershed
%apply=img width="450" height="360" align="top"%topo/pctg1.jpg%%
(:divend:)