This page features troubleshooting questions students have asked for Remote Sensing Foundations Module 8: Final Project and Presentation Preparation.
Length of Presentations, Final Presentations
Question: I made a video of my presentation, and unfortunately it’s 13 minutes. To cover everything asked for and answer all the questions, it will be hard to cut it back. So before I start to slash and burn through this presentation — how strict is the 6-8 minute time limit?
Answer: We prefer you to stick to the 6-8 minute time limit. It should be possible given what should be included per the assignment. It’s okay to cut back on details and keep it to higher level information. Pretend you are explaining the project to some friends at a dinner party. I usually use the one slide per minute rule (if you are using slides).
Threshold gone wrong?, Q & A, Final Presentations
Question: Hi everyone! I was looking for insight about a threshold I’m doing. I’m trying to run a threshold as well as a subsequent mask based on my image’s slope calculation. However, the threshold I’m running is only working for elevation! I can’t figure out how to specify slope any better than what I have… Here’s my code:
var DEMslope = ee.Image(‘slope’);
var DEMslope = DEM.clip(geometry);
var threshold = DEMslope.gte(10).and(DEMslope.lte(21));
Map.addLayer(threshold, {palette:[‘white’,’red’]},’Potential Esker Slope’);
var mask = threshold.updateMask(threshold);
Map.addLayer(mask,{palette:[‘purple’]},’Potential Esker Slope Masked’)Any additional insight would be appreciated
Answer: Is this your full code? If not, can you share the code link (here or on email)? Sometimes it’s better to see the whole thing for some context. For thresholds, as long as the integers you are using are within the bounds of the range, it should work okay. From what you’ve posted it seems that you are using the slope threshold to create a mask? Are you trying to mask out values beyond the range of your threshold??