UNC-Chapel Hill GEOG 370 - Questions (3 pages)

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University of North Carolina at Chapel Hill
Course:
Geog 370 - INTRO TO GEOG INFO Lecture 3
INTRO TO GEOG INFO Lecture 3 Documents

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Question 1 List the buttons in the Data Frame Properties Coordinate System window Give a short description of the function of each button Clear removes coordinate system from layer that the data frame is currently using to display your data sets the current coordinate system to be no projection Transformations reviews or defines transformations that are available by geographic coordinate system used by this data frame and the geographic coordinate systems of data added to it Modify let s you specify coordinate system for this data frame by importing a coordinate system for an existing data source Import let s you define a new coordinate system for this data frame New allows you to add a new geographic coordinate system or projected coordinate system Add to favorites adds selected coordinate system in list on the left to Favorites folder Question 2 Has the shape and appearance of the United States changed If so how Yes the shape of the United States did change It appears to be less warped and is also smaller than it was in the previous projection Question 3 List the names and values of the parameters that appear in the Coordinate System tab in Data Frame Properties window for this coordinate system USA Contiguous Albers Equal Area Conic Projection Albers False Easting 0 000000 False Northing 0 000000 Central Meridian 96 000000 Standard Parallel 1 29 500000 Standard Parallel 2 45 500000 Latitude Of Origin 37 500000 Linear Unit Meter Question 4 Given the appearance of the data now do you feel that the Albers Equal Area Projection is appropriate for viewing the entire world Attach and describe the current view The Albers Equal Area Projection is not appropriate for viewing the entire world The projection gives the appearance of looking at a globe in that you can only see certain sections at one time because the earth is round Scale and shape seem hard to preserve but distortion between parallels is minimal Question 5 Describe and attach the current ArcMap window The



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