I have a number of datasets that I’ve created long ago by cropping an original one.

I would like to get the footprint of these datasets, similar to the MasterArea.kml file that is created when master and slaves images are extratcted (in SLC data import).

Is there anyway to get it? Or Is there any file (log file maybe?) from where I can…[Read more]

I’m interested in getting this information too. I exported the Synthetic Amplitude via the Time Series Module and would like know whether its values are the normalized ones you mention to Ivana.

I enclose the created CSV file. As you see the values for the first date are always 0. Why? Is it the Synthetic Amplitude the correct…[Read more]

Yes, you are right! I confused the terms. I know that what I’m seeing are amplitude values,

Thanks for the description and the info,
S

I need some help with the interpretation of the Amplitude Stability Graph.

The file I attach corresponds to a plot created from the results of Small Area Processing,in the geocoding section. Which are the points which actually show the Amplitude Index? The small red dots? What do the other points mean?

Thank you.

Santiago

I ask you again about the YYYYMMDD fields but this time in the .csv file created from the Small Area processing.

According to what I see it seems that they contain the single displacement for each date instead of the cumulative one (in the field corresponding to the master image eveything is 0, that’s why I think this is the…[Read more]

I’ve got a number of GPS measurement for a set of Corner Reflectors which are identified as PS within SarProz.

When looking at the GPS measurements, projected into LOS, the displacement velocity ranges in general from 0 to -500 mm/yr, except for 1 point where that reaches almost -1000 mm/yr.

The question is, is it ok to input this -1000…[Read more]

Thanks,

Santiago

Thanks,

Santiago

” wrong saturation values!” Must be NaN < Min < Max < NaN”

I reselected the DEM, I manually re-wrote the GCP and projected again the DEM amplitude in SAR coordinates. Still seeing all zeros in SAR coordinates.

What should I do?

Thanks,
Santiago

I’ve checked it with the DEM Visualization tool (screenshot attached), finding no NaNs, but according to the manual this displays the DEM in Geo coordinates, which file corresponds to the DEM in SAR coordinates?

Santiago

I remember that when you warned me about NaN values in my DEMI checked it and I converted them to zero.
When I made that correction I restarted the process again from the external DEM selection to make sure it was updated.

Santiago

Then it is desirable to ckeck it even if estimating displacement only (from what you say I interpret that it is used to remove the topographic phase reding it from my DEM, which in this case is a high-resolution one).

I have tried to re-process my dataset again with this option checked, and apart from taking too long (~8 hrs) I can’t…[Read more]

According to Timo’s notes, I interpret that the Ext. DEM option is for Height Estimation only.

However some times I have accidentally ckeched the Ext Dem option, when estimating displacement only(height neglected), and I’ve seen the Connections Processing takes much longer. My question then is, does the Ext. Dem option have something to…[Read more]

I’ve made a subset of my images, but then I have realized that the extracted area exceeds my DEM coverage. However, my AOI (around the yellow placemark in the screenshot) is fully covered.

Will that bring problems in the further processing or I can I proceed without inconvenience?

Thanks

PS: In enclose a screenshot, in blue the DEM…[Read more]

Here the names of two of the images:

S1A_IW_SLC__1SDV_20160104T052642_20160104T052709_009340_00D80F_1E18
S1A_IW_SLC__1SDV_20151223T052642_20151223T052709_009165_00D311_E59E

I know this is not the propper place to ask this, but have you experienced recently problems to download Sentinel-1 data?

Thanks,
Santiago

These images have VV and VH polarizations. However, when getting the contents in SLC Data Import, only the VV one is available to choose.

Has this happened to anyone here? Has this issue already been discussed in another thread?

Thanks ,
Santiago

I give you a concrete example:

20120803 (First Acquisition): 0.00
20120819: 0.43
.
.
.
20150112 (Last Acquisition): -14.53 —-> This is the displacement of 20151212 respect to 20120803??
CUMULDISP: -15.54

I have a doubt regarding the fields YYYYMMDD (created with the time series option) which seem to be showing displacement values. These values refer to a cumulative displacement (i.e. the cumulative displacement at date 20010721) or to the single displacement registered for that acquisition (in that case, respec to to whom or when?…[Read more]

I’ve tried to generate Cumulative Displacement files covering different periods of time, entering different dates in the Cumulative Displacement tool. However, when exporting to KML/KMZ I think I’m always getting the same file,as the initially generated for the complete temporal length. covered by mi images. Looking at the logfile…[Read more]

Thanks you, now it is clear for me

Cheers,
S

I have saved the Parameters and the Coherence in the Sparse Points Processing section, and then I’ve tried to map the Coer. First and Coer. Second in View…[Read more]

Normally I’ve created the mask with the ‘Local Maxima from Reflexivity’ option. Could you explain how the other options work for te Mask creation?

-local maxima extraction with range lobes suppression
-local maxima extraction with range and azimuth lobes suppression
-regular grid, spaced dS by dL

thanks

When exporting a parameter in geotiff format, what I have been able to create is a file containing a color ramp (from 0 to 255) with the corresponding reference scale, but I would like to have the actual parametervalues in order to compare with outputs from another software. Is this possible?

Thanks,
Santiago

I’ve been carrying out tests of PS-processing with a stack of 9 CSK images, selecting always the Sparse Points according to their amplitude Stability Index.

What I would like to know is whether with this approach the obtained results are reliable (the coherence I get both before and after APS removal is high), or if I should increase the…[Read more]

After having a look at timo’s notes, and the manual, I was able to get very good results for displacement in my study area. I’m really very happy with the sw.

However I still need to clear out some points of the APS processing, since I need to write a report explaining the processing I’ve carried out:
– In the processing…[Read more]

The file is on a net disk, so I think this should not cause major problems. Windows has more than 500 available gb, and the usage of RAM memory is about 50% when running this command. The parameter from which I’m trying to select the points is the Amplitude Stability Index (Amp. Stab. Index 1-Sigma/Mu). I enclose a screen shot, since in my…[Read more]

I’m working with an area where I find it difficult to identify a clear and reliable GCP (it’s a totally uninhabited zone) and there is not no topographic feature which could discriminate easily from its surroundings. It is more or less a flat scene at a very high altitude (more than 4000 meters) , with only one hill or peak. In…[Read more]

I’m sorry, the mask zipped file exceeds the maximum allowed limit

I am having a problem with Sparse Point Selection (both in the APS Processing and/or the Sparse Points Selection section which is in blue) . The process of selection seems to get stucked at the Mask Loading step. In previous opportunities I made tests with smaller datasets, of only 3 images, but now I’am working with a dataset of 9…[Read more]

After downloading the last version, I have verified that only the selected image is processed for extraction and co-registration (Set Orbits is performed for all the images identified as new, but it does not take long time), so the issue is solved.

Thank you/Grazie mille!

Santiago

I have created a SLC data set and now I want to add a new image. According to the manual, this is possible:

-If a dataset was previously created, you can import new images with the “Update” option. All new SLC data placed in the SLC folder will be imported
-You can also choose to import a single new image by selecting it from the…[Read more]

I would like to know whether it is possible to export some of the estimated parameters (cumulative displacement, velocity and residual height) to geotiff and/or shapefile format. I had a look at the manual, at the software options and also at the other forum threads but I did not find anything.

Thanks in advance!
Santiago

Could you offer me some guidance as for the Sparse Points Selection criteria in the APS tool?

I’m not very sure what each option means,
Thank you,

Santiago