1.What does your image show? Please briefly describe it.

The image shows 3 pictures of the Aral Sea for dates 1973, 1987, and 2000.

2.What measurements did you get for each of the three areas highlighted in red?

The measurements are for the surface area of the Aral Sea showing the decrease of about 2,860 square km
1 5865500000 square meters
2 4385750000 sq m
3 3009937500 sq m


3.In what ways can you imagine incorporating ImageJ techniques and/or satellite data into your teaching?

Students could compare individual results and do error analysis.

4.What lingering questions (if any) do you have from today's workshop?

I tried to download ImageJ on my school computers today, it would not allow me to do this. I guess I need to ask the system administrator for permission.

Gwen:

I note that your triptych image is still in the false color that it started with. Perhaps you missed the section that you change the Image Type to 8-bit. The Thresholding procedure won't work unless the image is in grayscale (also called 8-bit). When you have a chance, please try this last step again so you're clear on how it works.

Let me know if you need assistance!
LuAnn (luann_dahlman@terc.edu)