Managing surface models (Bathymetry Solution)

The Compose Surface tool allows you to manage multiple surface models in the Compose Surface window. Your surface models can have several purposes. For example, you can extract depth values from the model and apply them to a navigational product like a paper chart or ENC or calculate slope across a surface to support pipeline planning. These products require that you are able to trace back to where the source data came from in cases of emergency. Therefore, a surface model is never permanently deleted from the BIS geodatabase in case it is required that a surface model be retrieved for official review.

Steps:

1. Start ArcMap.
2. On the main menu, click Customize > Toolbars > Bathymetry.
3. Click the Compose Surface button on the Bathymetry toolbar.

   The Compose Surface window appears.

4. Click the Manage Surface Models button at the top of the Compose Surface window.

   The Manage Surface Model dialog box appears. A list of your saved surface models, along with basic metadata, is displayed.
5. Choose the model in the list that you want to manage.
6. Optionally click Remove All Overviews.

   The overviews from a composite surface within a surface model are removed.

7. Optionally click Remove Old Overviews.

   You will want to remove old overviews if you added new bathymetry datasets to your surface model and new overviews were generated. The old overviews are irrelevant and will take up space on your local drive or network location if not removed.

   The overviews created for older versions of a composite surface within a surface model are deleted. Overviews created for the latest version of the surface are not affected.

8. Optionally click Delete.

   The surface model is removed from the list of models in the Manage Surface Model dialog box. The surface model is not deleted from the BIS; it remains in its geodatabase for tracking purposes.

9. Optionally check the Show deleted models check box.

   All surface models, active and deleted, display in the list of models. Only active surface models display when this box is unchecked.

10. Optionally click OK to save changes.
11. Optionally click Cancel to discard changes.