Real-world classification Lab

Hey guys, as you saw last week classifying features in satellite images is hard in some cases and easy in others.  Some things were easy to distinguish--say water and land--while others were more difficult, say urban areas versus wetlands.

This is where the science of remote sensing kicks in.  Different features absorb and reflect in different regions of the electromagnetic spectrum, ranging from microwaves all the way down to UV.  Today we are going to continue with landsat satellite images and do three things:

1. Download landsat images from the USGS or Brazilian Space Agency links:

http://edcsns17.cr.usgs.gov/EarthExplorer/

http://www.dgi.inpe.br/CDSR/

2. Look at different combinations of bands and what they tell us about features. 

3. Download time series of landsat data and classify them to answer real-world conservation/science questions.