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Tuesday, June 28, 2011

Homeland Security 3: Protect



Process Summary:
Section 2.1: Prepare Protect Scenario Map 1
Created new ArcMap document using Military portrait template.
Added COUA_MEDS_Boundaries, Orthoimagery, and Geographic Names (GNIS) layers created in previous lab.
Zoomed to extent of orthoimagery layer.
Started editing, and created point for NORAD.  Opened attribute table and named point. Saved edits, and stopped editing.
Selected newly created NORAD point. Created 3 mile buffer around point.
Saved map document as ED_Colorado_2S1.mxd.

Section 2.2: Locate Critical Infrastructure
Selected features from COUA_GNIS file that were completely within the buffer created in section 2.1 (49 features.)
Summarized selected features by Feature_Cl.  Output table: ED_GNIS_Buffer_Features.dbf. added to map document.

Section 2.3: Protect Critical Infrastructure
Selected the one airport from the selected features in section 2.2.
Created 500 foot buffer around airport. Changed transparency of buffer layer to 50%. Labeled features by Feature_Na field.
Added Transportation layer created in previous lab. Turned on primary, secondary and local roads layers. Labeled roads by name.
Selected roads that intersect with the Airport buffer.  Using intersect tool, generated points where Local roads intersected with buffer boundary.
Saved map document as ED_Colorado_2S3a.mxd.
Turned on 3D Analyst extension. Added Elevation layer to map document.
Used Hillshade (3D Analyst) tool to generate ED_HS613074PM raster from elevation layer. Azimuth: 270, Altitude: 39.
Moved orthoimagery layer above hillshade layer in table of contents, and set transparency to 60%.
Saved file as ED_Colorado_2S3b.mxd.
Created new shapefile ED_surveil_pts in results folder. Edited coordinate system to match elevation layer, and added to map. Symbolized as 12 point red triangle.
Started editing, and added 15 points to ED_surveil_pts layer over NORAD layer.  Saved edits, stopped editing, and saved map as ED_Colorado_1S3c.mxd.
Turned off orthoimagery layer.
Using Viewshed (3D Analyst) tool, selected elevation layer as input surface, and ED_surveil_pts as observer points. Saved output as ED_viewshed0, added to map, with transparency 50%.
Added OFFSETA  short integer field to ED_surveil_pts attribute table, and gave each field a value of 10.
Repeated Viewshed analysis, and saved output raster as ED_viewshed10, with 50% transparency.
Saved map document as ED_Colorado_1S3d.mxd.
From the 3D Analyst toolbar, selected Create Line of Sight tool. Observer offset: 10, Target Height: 1. Created line of sight lines with this tool.
Selected one of the lines of sight created. Created Profile Graph from 3D Analyst toolbar button. Saved graph as ED_NORAD_LOS.
Launched ArcScene. Added Elevation layer, selected properties, and checked “Floating on a Custom Surface” button under Base Heights tab.
Added Orthoimagery layer, selected properties, and checked “Floating on a Custom Surface” button on Base Heights tab. Set transparency of layer to 60%. Copied and pasted line of sight lines from ArcMap to ArcScene. (Only one line would paste.)
Saved ArcScene document as ED_Colorado_2S3.sxd. Saved ArcMap document as ED_Colorado_2s3f.mxd.

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