[UW-GIS-L] Please help me join layers

David Finlayson dfinlays at u.washington.edu
Fri Sep 5 19:23:29 PDT 2003


You also might try a spatial join in ArcMap.

Pull up the help in ArcMap and type in "spatial join" in the index. 
There are step-by-step directions on how to join the attributes of 
features by their location.

HTH

David


Erin Clancy wrote:
> Hi guys,
> 
> 	I just started using ArcInfo, so this is probably an easy
> question.
> 	I have two layers from two separate agencies; the layers cover
> roughly the same area.  One layer is divided according to soil; the
> attributes include soil depth and transmissivity.  The other layer is
> divided according to subbasins.  Each subbasin overlaps with several
> soil polygons, and vice versa.
> 	I need to join the two layers spatially to figure out average
> soil depth, etc., in each subbasin.  But when I try to join them, most
> of the attribute columns from the soils layer are just filled with null
> values.
> 	The soil attributes are stored as numeric data, and I am able to
> do a tabular join between the soil layer and a different (not the
> subbasins) .dbf.
> 
> 		Thanks,
> 			Erin Clancy
> 
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-- 
David Finlayson
School of Oceanography
Box 357940
University of Washington
Seattle, WA  98195-7940
USA

Office: Marine Sciences Building, Room 112
Phone: (206) 616-9407
Web: http://students.washington.edu/dfinlays



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