[chronomanz]

hi prof,

understood. tqvm

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[chronomanz]

hello prof,

i have almost similar question. i used Smart5 with Small Temporal Baseline image graph on 6 images (which is less than u suggested for its robustness; in message #3231) to detect subsidence

obtained results from 2 weeks baselines are:
weeks: 0 2 4 6 8 12
a) individual displacement for 6 dates are: 0mm, -1.4mm, -0.5mm, -8.9mm, -11.7mm, -12.0mm (which total is -34.5mm)
b) reference point displacement for 6 dates are: 0mm, -0.2mm, 1.7mm, -1.7mm, 0.5mm, -0.23mm (which total is 0.07mm)
c) while cumulative displacement is: -11.2mm (but diff[last-first] = -12-(-1.4) = -10.6mm)

1. based on small temp baseline graph – SB
* does each displacement measured in relative to consecutive image (date) since i used SB?
so, displacement of -0.5mm week 4 is in relative to week 2. so, total in week 4 is 0+[-1.4]+[-0.5]=-1.9. am i correct?
* or in relative to the Ref Point for between 2 dates?
but, how to explain?

2. how do i get explain the relationship between individual displacement (a) and cum. disp (c)?
* total of (a) differs from total of (c)

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[chronomanz]

hello,

why is my sparse points are not sparse but most likely are densed? im following the tutorial for InSAR Time-Series – Land Subsidence. TQ

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[chronomanz]

hello, how do i correct the dem shift? neither amp xcorr nor orbits only mode can get i right

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