Homeland Security: Protect

This lab was a second part to a lab we started last week. Last week we gathered the data and prepare our information.

This week the objectives were to be able to:

- Create a hillshade surface in ArcMap

- Edit attribute features in ArcMap

- Create new point data

- Create a new shapefile within ArcCatalog

- Create a line of sight

- View 3D data in ArcScene

This is a map of the Helioport at Cheyenne Mountain with a 500 foot buffer around the Helioport and a 3 mile buffer around NORAD and the Helioport.  I included 2 small maps of the area for reference.

This map is of the Ingress and Egress Routes, particularly where the local roads intersect with the 500 foot buffer zone around the Helioport.  I, again, included map insets for reference.

PART III: Process Summary Details 

III. Site surveillance Locations around Critical Infrastructure

I have to say that this was not as fun an exercise as I thought it would be when I read over the notes.  It seemed very awkward and was hard for me to determine if I was doing it correctly…most likely because so much of the projects have given me issues that I just don’t trust it is coming out right.

i.       Generate Hillshade

1.       Used the 3D Analyst  for the Elevation group layer to create the “Hillshade” relief area.  Used 270 for azimuth, 39 for altitude and Model Shadows for the template.

2.       Created a new shapefile in ArcCatalog called “CMB_surveil_pts”

3.       Added surveillance points to the hillside using the Edit tool.

ii.       Generate Viewshed

1.      Used the 3D Analyst tool for Elevation group layer to create the “Viewshed” area to check visible coverage from surveillance sites..

2.      Set the parameters for default for the first one.

3.      Added a field to the Surveillance Points attribute table and set new field to 10  to account for setting the surveillance points on a 30ft tower.

4.      Ran the Viewshed analysis again to see new visibility.

 

iii.      Create line of sight

1.      Used the 3DAnalyst tool for Elevation group layer with the ‘Create Line of Sight’ tool. 

2.      Used 10 as the observer offset and 1 as the target offset to compensate for the 30ft NORAD entrance height and viewing objects low to the ground.

3.      Worked with this tool a bit to see the surveillance areas.

4.      Created ‘Line of Sight Profile Graph’ using the ‘Create Profile Graph’ on the 3D analyst tool.

5.      Exported graph and added  to Deliverable 3.

 

v.      

View 3D line of sight

1.      Opened ArcScene from the 3D Analyst toolbar.

2.      Added the Elevation layer (by typing in Elevation, it would not come up in a drop down box)

3.      I was told the solution to figuring out how to get my TOC to show so was then able to keep working on the lab.

4.      Using the Base Heights tab in Properties, selected ‘Floating on a Custom Surface’ and made sure the Elevation layer selected.

5.      Repeated with the NORAD layer.

6.      Neither image looked very good.  The Elevation layer did not change too much from 2D to 3D and the NORAD layer was really jagged looking.

7.      Used the Navigate tool to rotate the layer to show the road and tunnel, this took quite a bit of time and it never did look right.

8.      Copied and pasted the line of sight polylines. 

9.      I had to zoom in quite a bit to see this and the polylines did not match up with the NORAD layer. 

10.  As I tried to export the 3D image into a jpg, the jpg option never showed.  According to other students, only the 2D image allowed exporting to a jpg, so I did this. Saved and exported  as CMB_HS_Colorado_LineOSight.jpg.