Georeferencing Lesson: Easy and Challenging

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Georeferencing_Lesson_Easy_and_Challenging Download
File Size:
12.6 MB
File Type:
ZIP
GIS Level:
  • Intermediate
Geographic Scale:
  • State
Target Audience:
  • Higher Ed
Location:
Minnesota and South Dakota
Topics:
Description:

In this activity, you will georeference two different images at two different scales. The first image will be fairly easy to georeference, and the second will be more challenging. The first one is Minnesota image; the second one is a Landsat image of a wildfire on the Rosebud Sioux reservation in South Dakota. You may have a layer from time to time that has no georeferencing information on it. If it is a vector dataset, you might be able to define a projection for that layer using Define Projection in ArcToolbox. However, if it is an ungeoreferenced image, such as from a paper map or aerial photograph that you have scanned on a scanner, you will need to georeference it to a georeferenced layer that covers at least some of the same area as your ungeoreferenced layer. Fortunately, this is not a difficult process, provided that you have discernible features on your georeferenced layer that are also visible on your ungeoreferenced layer. You will georeference these layers using the Georeferencing tool in ArcMap.

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Difficulties
Ross Johnson

Not a real review. I wanted to try out this lesson. Only got halfway down the first page. This is a criticism that applies to most of these lessons. It is assumed that users have the skills to understand too many concepts used in these lessons. I have gone to many of these lessons to try and get assistance but end up up falling down before I get started!