The third lab assignment for Remote Sensing/Photo Interpretation introduces ERDAS (Earth Resources Data Analysis System) Image. The first part of the lab provided a basic overview of the program, initially with some rudimentary tasks involving Advanced Very High Resolution Radiometer (AVHRR) imagery and a LANDSAT Thematic Mapper (TM) satellite image of forestland in Washington State.
Working with the data from the Olympic Peninsula in Washington, learned how to add an area column to the attributes table that calculates the area in hectares for each land classification. Focusing on a smaller area within the overall imagery, then used the Inquire option to extract a subset image for closer analysis. Next needed to recalculate the area for the subset image prior to outputting the file for ArcGIS Pro.
Within ArcGIS Pro, symbolized the subset image and then created a final layout showing the thematic classification with area size statistics: