SARPROZ ©

No. You can do the reprojection yourself once you get the final output from Sarproz
best

it surely makes sense to consider the temporal coherence of a point
but not for estimating height and/or velocity
the temporal coherence is used e.g. to weight the spatial integration of the APS graph
best

hi

* Sarproz gives explicit messages about the options that are taken. if you read messages carefully, you should be able to understand whether interferograms are read, whether flattening is assumed and so on
* in any case, if you apply a standard processing, the phase is read from images and the flat terrain phase is removed afterward. you can…[Read more]

you are not fitting a single line. you are fitting a planar surface (height and velocity).
with 4 images you can look at 3 interferograms. or you can calculate the average if in your particular case it makes sense. or you can neglect height and atmosphere if you are in the proper situation and assume that the phase content is just movement.
in…[Read more]

hi

* if you want to cherry pick only a few pixels of interest, you can use this module: https://sarproz.com/manual/kml2mask.html to generate your own mask of pixels, eg by importing a simple list of geographic coordinates

* if you want display data (like amplitude or coherence) of cherry picked pixels, you can use this module (visualization…[Read more]

Hi Mahtab,
saving a selection of points does not mean saving the plot you are diplaying
when you save a selection of points, you save a 2d vector, where the 2 dimensions are sample and lines, independently from what you have on x and y axes in the scatter plot
the only choice you have is whether to save a color or not, as indicated here…[Read more]

Hi Janbu,
there can be a number of reasons for receiving that message, we need more infos to understand the case.
Generally speaking, even if for some reasons NaNs are in the data, that does not mean you cannot process and analyze successfully your data.
Please check the images one by one: do you observe black areas?
Did you generate the adaptive…[Read more]

please read well this document https://sarproz.com/manual/Sarproz_errors_management.html
and update your software
best

Hi,

did you do the steps suggested by the software?

generally speaking, keep always in mind this: https://sarproz.com/manual/Sarproz_errors_management.html
and report log files and error files, if any.
are you using the last version of the software?

best

Hi,
when you get problems/errors, it’s good practice to send also the logs and possible additional error files.
Anyway, in your case, please be aware that when Sarproz starts, it does not try to connect to a specific IP/server. It’s only checking internet connectivity through common webpages, like yahoo. Do you have internet access?
If you are…[Read more]

Hi Arslan,
your question would require to talk about many topics, it cannot be answered with a short post. There are 2 ways for you to solve this issue: 1. take a Sarproz course and learn deeper the technology; 2. get some processing assistance (someone who does the processing for you). Given your student status, I strongly suggest you to go with…[Read more]

We call it “command line” or “background” mode.
If you type it in the search line of the forum here https://www.sarproz.com/sarproz-forum/, you’ll get some discussions.
Here some updates short descriptions containing command line mode infos (there are more…[Read more]

Hi Paulina,
to answer your questions we usually take 5 days of classes: those the core topics of multi-temporal insar…
may I suggest you to take the online course? or alternatively we can organize a course in person in your country…
best

Sarproz only accepts SSC data: Single Look Slant Range Complex images. yours is MGD, Multi Look Ground Range Detected.
best

Hi Anti,
here some infos https://www.sarproz.com/groups/sarproz-group/forum/topic/sentinel-orbits-in-sarproz/
usually Sarproz tells you what orbit files are needed, however, I am afraid in this case (change of repository), the error prevents the message from being visualized.
You should manually check the orbits you need and place them in the…[Read more]

Hi Emre,
the model you are applying, linear deformation, does not apply to your case, since you had earthquakes.
the suggestion for you is to take an InSAR course (if you want, we do offer InSAR course based on sarproz).
all the best

Hi,
here the concept is the following: when you take an image as a reference, if the image is noisy, the noise is propagated to all other images (being the reference image set to zero, since it’s the difference with itself). This is what you see in that plot.
However, Sarproz takes into account this phenomena and applies some corrections. So,…[Read more]

Hi,
first of all, to be able to obtain accuracy, we would need the truth, which usually we don’t have. So, it would be better to talk about precision.
In any case, the standard deviation is calculated from the phase residuals (observed interferometric phase after removal of the model you choose for the processing). As a consequence, you can…[Read more]

1. you did not include all pictures (velocity is not visible). you have to compare all parameters in the same coordinate system (like in sar coordinates)
2. if height and velocity are correlated, something is wrong
3. the range of values to be estimated is too small (both for velocity and height). also, you have lots of images, it means no risk to…[Read more]