Geomorphic Change Detection Software

Explore Change Detection Folder

Accessing Change Detection Folder From ArcMap

Every time a change detection is performed between two DEM a folder is created in the project folder structure to house the results; tables, figures, and DoD rasters. To access the folder for a specific change detection right click a specific change detection and select Explore Change Detection Folder by selecting it from the pop-up menu as is shown below:

AccessingAnalysisFromTOC_ExploreChangeDetectionFolder

This will bring up a windows explorer where the results for the selected change detection can be explored.

Overview of Change Detection Folder Structure

All change detection results are stored in the following folder:

The results for an individual change detection are placed in a sub folder of this structure called GCD appended by the sequential number of change detections performed for that project. For example the first change detection ran in a project will be placed in a folder called GCD0001, the fifth change detection would be placed in a folder called GCD0005. The first change detection for a project will be placed in the following folder:

[ProjectName]\Analyses\CD\GCD0001

Within this folder are the following files and folders that contain the results of the GCD:

  • dodraw.tif

    • The spatial results of the change detection in raster format without applying any thresholding techniques. Simply DEMnew - DEMold.
  • dodThresh.tif

    • The spatial results of the change detection in raster format with the error with the thresholding techniques applied.
  • raw.csv

    • numerical results of the change detection in comma separated values format without applying any thresholding techniques.
    • It contains the following fields Lower Elevation Range, Upper Elevation Range, Total Area, Total Volume, Number of Cells
    • This is the areal and volumetric changes placed into preset bins.
  • Summary.xml

    • summary of numerical results of the change detection in tabular/.xml format.
    • contains results without applying any thresholding techniques and with applying thresholding techniques.
    • Same table accessed within ArcMap from the Change Detection Results Panel. That is accessed by right clicking an existing Change Detection and clicking the View Change Detection Results img button.
  • thresholded.csv

    • numerical results of the change detection in comma separated values format with the thresholding techniques applied. Simply DEMnew - DEMold.
    • It contains the following fields Lower Elevation Range, Upper Elevation Range, Total Area, Total Volume, Number of Cells
    • This is the areal and volumetric changes placed into preset bins.
  • Figs

    • folder of figures

    • houses the following figures which are all in .png format:

      • ChangeBars_AreaAbsolute

        • Bar chart of the actual area of change for erosion and deposition.
        • Red is erosion and is represented by negative values.
        • Blue is deposition and is represented by positive values.
      • ChangeBars_AreaRelative

        • Bar chart of the relative area of change for erosion and deposition, absolute values are used to allow for easier comparisons.
        • Both erosion and deposition are represented by positive values.
      • ChangeBars_DepthAbsolute

        • Bar chart of the actual average depth of change for erosion and deposition.
        • Red is erosion and is represented by negative values.
        • Blue is deposition and is represented by positive values.
      • ChangeBars_DepthRelative

        • Bar chart of the absolute average depth of change for erosion and deposition, absolute values are used to allow for easier comparisons.
        • Both erosion and deposition are represented by positive values.
      • ChangeBars_VolumeAbsolute

        • Bar chart of the actual volume of change for erosion and deposition.
        • Red is erosion and is represented by negative values.
        • Blue is deposition and is represented by positive values.
      • ChangeBars_VolumeRelative

        • Bar chart of the relative volume of change for erosion and deposition, absolute values are used to allow for easier comparisons.
        • Both erosion and deposition are represented by positive values.
      • Histogram_Area

        • Histogram of the area of change.
        • Red is erosion.
        • Blue is deposition.
      • Histogram_Volume

        • Histogram of the volume of change.
        • Red is erosion.
        • Blue is deposition.

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