Hi,
I have a project to map 'Current' Desertification in Tunisia. I need to produce a 1:800,000 map.
My Initial Idea is to measure desertification through an NDVI to classify desertification using LandSat 8 images as a data source.
Questions:
Is LandSat 8's spatial resolution suitable to map a 1:800,000 scale map?
Should I use one year of images i.e monthly 2014 images or a longer time frame such as 10 years of monthly images or be even more specific i.e daily? to get a mean NDVI score, or should I not use a mean score?
Would all the images I have to use need to be corrected for atmospheric variation even though I have used the same satellite?
Thanks in advance!
أكثر...
I have a project to map 'Current' Desertification in Tunisia. I need to produce a 1:800,000 map.
My Initial Idea is to measure desertification through an NDVI to classify desertification using LandSat 8 images as a data source.
Questions:
Is LandSat 8's spatial resolution suitable to map a 1:800,000 scale map?
Should I use one year of images i.e monthly 2014 images or a longer time frame such as 10 years of monthly images or be even more specific i.e daily? to get a mean NDVI score, or should I not use a mean score?
Would all the images I have to use need to be corrected for atmospheric variation even though I have used the same satellite?
Thanks in advance!
أكثر...