GIS4035 Module 4

 This weeks lab focused on Spatial Enhancement, Multispectral Data, and Band Indices

We downloaded and imported satellite images and performed spatial enhancements in both ERDAS and ArcGIS Pro. We explored the Histograms, utilized various tools like Convolution, Focal Statistics, created spectral band indices and utilized various filters. 

In the last portion of the lab we were tasked with using all the previous skills/methods outlined in the prior exercises to find 3 features in the provided image and create a map layout for each one. Below are the results:

Searched the image for a feature that produced a spike between pixel values of 12 to 18 in Layer_4. The feature was water make and for the best visibility I chose Short Wave Infrared Color Composite band combination where dark blue is water, green is vegetation and pink is bare soil.

For the second map we looked for a feature that represents a small spike in layers 1-4 around pixel value 200 and a large spike between pixel values 9 and 11 in layer 5 and layer 6. This feature was snow and True Color band was chosen. 

Last, we searched the provided image for areas of water where layers1-3 become much brighter than normal, layer 4 becomes somewhat brighter than normal and layers 5-6 remain unchanged. The above water transition area was located and Near Infrared was chosen to best highlight the feature