contours of bathymetry required

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helga55
Posts: 8
Joined: Tue Mar 08, 2005 9:36 am America/New_York

Re: contours of bathymetry required

by helga55 » Wed May 18, 2022 9:24 am America/New_York

Thanks a lot xuanyang02! Yes after reinstalling Seadas, I was able to make a bathymetry mask as well as contours!
I would have liked the contours to have been overlaid on the ocean color image (without the bathymetry mask) but that wont be possible guess?

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OB SeaDAS - xuanyang02
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Answers: 1

Re: contours of bathymetry required

by OB SeaDAS - xuanyang02 » Wed May 18, 2022 10:03 am America/New_York

OB SeaDAS - knowles wrote: Thu May 12, 2022 6:57 pm America/New_York You can add contours in SeaDAS as described in the previous post. Note that you can only make contours on the selected band. So since you want contours of Bathymetry overlaid on chlor_a, you will need to:

1. Load VIIRS file.
2. Create bathymetry (which creates a band called "bathymetry"
3. Click on the "bathymetry" band which opens an image view and selects it as the current active product
4. Click on the Contours tool.
5. Set "levels" = 2 in Contours tool.
6. Click "Preview/Edit" in the Contours tool.
7. Set your desired contour values and click "Save", then click "Create Contour Lines".
8. Click on "chlor_a" band which opens its image view.
9. In the Layer Manager tab click on the checkboxes for the 2 contour line layers which you just created.

You can then right click in the chlor_a image view window and export the image "Export View as Image"
Step 1 -7 creates bathymetry and contour lines.
Step 8 -9 overlays the contour lines on the chlor_a image.

helga55
Posts: 8
Joined: Tue Mar 08, 2005 9:36 am America/New_York

Re: contours of bathymetry required

by helga55 » Wed May 18, 2022 10:14 am America/New_York

Yes it worked!! - thanks a lot and my apologies for being so rusty!

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