Lab 8 - Thermal and Multispectral Analysis

GIS - 4035

 

 

In this weeks lab I was given the opportunity to interpret radiant energy, and utilize both ArcMap and ERDAS to interpret thermal infrared data from a multispectral image.  The map above highlights the merger of two rivers in Ecuador, the Daule River and the Babahayo river.  I approached the area with two questions:  Is there a lot of Vegetation at the Daule River delta?  Which river is warmer, the Daule River or the Babahayo River?

 

Utilizing a NIR band combination (R-4, G-3, B-2) I was able to show that there is little to no vegetation at the river delta, as this area is mostly urban.  I was then able to utilize the Thermal Band (band 6) and show that the Daule River (darker blue) is in fact warmer than the Babahayo River (lighter blue). 

 

Overall I found it quite interesting all the data you can gather and show utilizing the multispectral images.  I feel that the information that a person can gather from these images can be put to many uses and offer the viewer an opportunity to see information that isn't visible to the naked eye.