Stamps export problem

walidbedrane · January 14, 2021, 7:13pm

hello dear,
the stamps export operation in snap 6.0 has not been completed for 4 hours, it is still at 1%
for your information, for just12 ifg

snap

ABraun · January 14, 2021, 7:52pm

we already have a topic on this issue: Problem in the latest part of snap to stamps
Please continue there. I also suggest to update to SNAP 8.

walidbedrane · February 1, 2021, 7:41pm

hello dear,
I had this error when i did stamps export, I redid the processing from the start but the same error in the psi export phase !

thanks for your help

walidbedrane · February 2, 2021, 3:39pm

@ABraun hello sir !
I did the second post because I don’t have access to the replies

walidbedrane · February 1, 2021, 7:41pm

hello dear,
I had this error when i did stamps export, I redid the processing from the start but the same error in the psi export phase !

thanks for your help

ABraun · February 2, 2021, 3:50pm

I merged all of your topics in here to keep the forum clean.

walidbedrane · February 5, 2021, 8:54am

@ABraun
Sir, i have same error when i update snap to 8.0 in the stamps export.

ABraun · February 5, 2021, 9:01am

have you seen this? Error: [NodeId: StampsExport] The Product ‘_20171006_IW2’ already contains a band with the name ‘i_20171006.rslc’

walidbedrane · February 5, 2021, 9:22am

i dont find " i_mst,q_mst and Intensity_mst " in the stack_deb

ABraun · February 5, 2021, 10:05am

so 04Aug2020 is only contained once?

walidbedrane · February 5, 2021, 1:41pm

yes, but i don’t find Intensity_mst

walidbedrane · February 6, 2021, 11:50am

i’m sure that i use just VV polarisation and i don’t have any duplicate data, but always the same error

ABraun · February 6, 2021, 11:52am

please check in the interferogram folder as well, as the error message is refering to this directory
You can share a screenshot of the contents of the ifg stack folder

walidbedrane · February 6, 2021, 11:59am

here they are

ABraun · February 6, 2021, 12:19pm

here we have the source of the error - somehow the data 2020909 is cintained twice. Please check how this was caused.

grafik

walidbedrane · February 6, 2021, 1:50pm

I find this, in the back-geocoding phase,

I think, the problem came from the split phase, I will redo the beginning to confirm

ABraun · February 6, 2021, 2:51pm

very good, somehow it was placed twice in the stack of interefrograms which caused the error during the export.

Herimitsinjo · February 8, 2021, 7:13pm

Hello all,
I am trying to do the snaphu export.
I got a problem and tried to solve it and another error showed.
In the screenshot is the error.
Can anyone help me, please?
Thank you!!

$ snaphu -f snaphu.conf Phase_ifg_VV_17Jul2020_25Jan2021.snaphu.img 3180

snaphu v1.4.2
26 parameters input from file snaphu.conf (84 lines total)
only one tile–disregarding multiprocessor option
Reading wrapped phase from file Phase_ifg_VV_17Jul2020_25Jan2021.snaphu.img
No weight file specified. Assuming uniform weights
Reading correlation data from file coh_IW2_VV_17Jul2020_25Jan2021.snaphu.img
NaN or infinity found in correlation data
Abort

ABraun · February 8, 2021, 7:39pm

looks like the coherence was not exported during the snaphu export, which causes the script to stop.
Is it part of the product before the export?

Herimitsinjo · February 9, 2021, 9:26am

Hello. two processes were involved: 1) write and 2) snaphu-export. After that, I started unwrapping the phase using the above command and I got this issue.

The product was after the snaphu export. These 4 files were present in the folder.

The coherence product was not present and I copied it from the write folder to the snaphu folder. Then, I run the command and I got the above error.