Impact of channel delineation on LSUs and searching an alternative for hru2.shp
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Fereshteh Kordrostami
Jan 30, 2026, 1:14:33 PM (8 days ago) Jan 30
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Hello everyone,
I have two questions:
1. Channel delineation thresholds:
If lower drainage-area thresholds are used during watershed delineation to create a denser stream/channel network, does this directly lead to an increase in the number of landscape units (LSUs), or are LSUs largely independent of channel network density?
2. Alternatives for hru2.shp
When using the dominant HRU option (1 HRU per LSU, stored in hru2.shp), is it conceptually and technically acceptable to use LSU.shp as a spatial alternative to hru2.shp? I need hru2.shp to overlay with other maps in ArcGIS Pro, but due to holes in hru2.shp, it's not possible to do that. That's why I am looking for an alternative for that.
I would appreciate any answers or insights on these points.
Best regards,
Fereshteh
I have two questions:
1. Channel delineation thresholds:
If lower drainage-area thresholds are used during watershed delineation to create a denser stream/channel network, does this directly lead to an increase in the number of landscape units (LSUs), or are LSUs largely independent of channel network density?
2. Alternatives for hru2.shp
When using the dominant HRU option (1 HRU per LSU, stored in hru2.shp), is it conceptually and technically acceptable to use LSU.shp as a spatial alternative to hru2.shp? I need hru2.shp to overlay with other maps in ArcGIS Pro, but due to holes in hru2.shp, it's not possible to do that. That's why I am looking for an alternative for that.
I would appreciate any answers or insights on these points.
Best regards,
Fereshteh
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