Enhanced Spectral Diversity ESD. should be applied to tackle the misregistration which appears as jumps between bursts, Please take a look at the following posts,
Coherence is the :
In general coherence value (0 - 1), the highest values are the evidence of the objects stability between the passes,
Basically the urban stable area should has higher coherence values than unstable vegetated area, and in consequently should be more coherent, but in this case the difference is mentioned, leads to ask about the types of Vegetation putting in mind that we have ‘C’ Band,
The height and dense of the vegetation related to the orbit Asc., or Desc. could be an effect as well, in this case “12” days tempor. base line might be not enough to get any change in the vegetation cover,