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3
votes
1answer
446 views

Recommendations for creating contour map from depth points

I am trying to put together a safe routes map for a local lake. I have an old paper map that has a grid of various depths as points. I would like to draw contour lines through these points and create ...
2
votes
0answers
98 views

Applying depth to Shapefile

Apologies if this question has been answered before. I'm digitizing a historic coastline and would like to add a single depth figure to it in order to merge it with a current contour model. Is there ...
1
vote
0answers
124 views

Trying to make a depth map of a lake but can't get the contours to show up right

I am trying to make a depth map of a lake. I am using the contour plugin to generate contour lines. The problem I am having is that when I use the plugin the contours come out right except on the ...
0
votes
0answers
20 views

Bathymetry data for Lac Lecointre or estimate data from satellite imagery?

I would like to get any sort of depth data of Lac (lake) Lecointre in Quebec. I've searched all over and can't seem to find any downloadable data. If there is no bathymetry data for this lake is it ...
0
votes
0answers
37 views

Calculating where the Z values of two rasters intersect

I have several raster layers which are depth horizons, one of these horizons cross cuts the others and I would like to calculate the line along which this occurs. i.e. the line along which the Z value ...