which way can we identify wetlands by remote sensing, by which satellite and which method can we delineate them to create maps?
I think this article would answer your questions quite well, see:
Article A Review of Wetland Remote Sensing
Guo, M., Li, J., Sheng, C., Xu, J., & Wu, L. (2017). A Review of Wetland Remote Sensing. Sensors (Basel, Switzerland), 17(4), 777. doi:10.3390/s17040777
Thank you for your answer, but the problem is that there is many approachs used, some who are based on study of vegetation of wetland, then others study humidity index, which one can be used to have maps based on this classification:
swamp
marsh
ponds
Bog
Fen
I think you will have a difficult time to classify them based on remote sensing alone, since the distinguishing features between the classes are based on the flora/fauna present, method of how it was created, soil nutrition etc.
"Marshes are nutrient-rich wetlands that support a variety of reeds and grasses, while swamps are defined by their ability to support woody plants and trees. Bogs are characterized by their poor soil and high peat content, while fens have less peat and more plant life than a bog."
https://knowledgenuts.com/2013/12/02/difference-between-a-marsh-a-swamp-a-bog-and-a-fen/
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