All Questions
Tagged with arcgis-10.5 dem
11
questions
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342
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Assigning z values to polygon feature vertices in ArcMap
I am trying to assign z values to vertices of rectangular polygon features in ArcGIS 10.5 by using a DEM raster. I do not want to assign min, max, or mean z values to the polygons themselves, but I am ...
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43
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Losing raster quality when using raster calculator (ArcGIS Desktop 10.5.1)
I'm currently working with DEM rasters that I hillshaded. The data I received contain nodata borders, probably the footprint of the originial mosaic dataset. As I received them separately, I can't ...
- 33
1
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0
answers
45
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White grid appears when reprojecting DEM in ArcGIS Desktop?
I am using ArcGIS Desktop 10.5.
I have a DEM .tif archive, in WGS 84. The specifics are:
Then, I try to reproject it to WGS 84 UTM 19S.
Project and transformations -> Raster-> Project Raster
I use ...
1
vote
1
answer
420
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Changing DEM resolution when creating a slope raster? [duplicate]
I want to create a slope map using a LiDAR DEM. I think that I should use the slope tool; but I need a slope map with a 2m resolution and I'm not sure how to do that.
How can I have a slope map with ...
- 119
1
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0
answers
223
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Creating a polygon that shows the specific elevation above a river using a DEM
My goal is to determine the possible area covered by interpreted Tertiary drainages. To keep my example simple, I have a DEM and a River polyline. I would like to see the area a polygon (or raster) ...
- 11
1
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0
answers
590
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Two different cell sizes represented in a raster
I am currently working with a DEM with a cell size of 10 meters. I only needed a certain area of this DEM and wanted it at a 1 m cell size so I extracted by mask. I set the appropriate environmental ...
- 109
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88
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Patch DEM data gap with raster calculator
I have DEM data with some gaps that I want to patch with lower resolution DEM. Using raster calculator on ArcMap 10.5, I used this syntax:
Con(IsNull("original.tif"),"lowres.tif","original.tif")
But ...
- 313
1
vote
1
answer
715
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Determining percentage of points visible within viewshed using ArcGIS Spatial Analyst?
I have done a viewshed (ArcGIS Spatial Analyst 10.5) on a DEM raster layer, where a limited amount of observer points (5) are aiming to capture as many points as possible on this DEM surface.
The ...
1
vote
1
answer
50
views
Inputting DEM min value into ModelBuilder?
I am building a model in ArcGIS 10.5 and I need to input the min value of a DEM as one of the variables.
How can I do this?
- 31
0
votes
1
answer
41
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Identifying the format of my raster layer ArcMap 10.5
I have rarely worked with raster layers in ArcMap and need to follow a procedure written by a colleague who is now gone and did this 8-10 years ago and I need to know exactly what I'm working with.
...
- 684
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1
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983
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Changing DEM with 10 meter cell size into 30 meter cell size in ArcMap?
I have a 10 meter cell size Oregon DEM that I would like to match my Northern California DEM thats at a 30 meter cell size.
How would I go about changing the Oregon DEM cell size from a 10 meters ...
