I am trying to make LULC of an area to access temporal changes using Landsat imageries of TM and OLI sensors. The problem is that the bare area, sand in river body, and built-up area appear same. So, are there any specific indices or speciality of any band that can be used to differentiate these LULC classes?
40 seconds ago
Try arcMap it have many indicators to separate land us, you need someone have expereince in this programme..
Regards@
Hi Padam Bahadur Budha
In my opinion, if you are using only one satellite image (that too if it belong to dry season) even soil bareness index, or normalized built-up index, or any other or combination of above may not be effective to solve the misclassifications errors.
The miscassification problem you are facing can be minimized to taking advantage of multi-temopral data sets (one belongs to wet and other data belong dry). Assume you have two satellite images belong to dry and wet.
1) fix to Bare soil and Builtup issue: The baresoil probably may covered by green grass (Subject to the study area) and built-up will stay same, thus you can use this info to separate bare soil form built-up
2) fix to sand and Builtup issue: you may notice in wet season image the sand portions will be covered by water, so you can use this info effectively.
I described this approach in one of my publication Article Multi-temporal land use classification using hybrid approach
Regards
- Badges
- Science topic
- Similar topics
- Methodology
- Sensors