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esrivas17 / gacos_correction_for_GMTSAR

Atmospheric GACOS correction adapted for GMTSAR
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GACOS ERROR #8

Open Yaoshangheng opened 1 year ago

Yaoshangheng commented 1 year ago

Hi,Professeor 1 Here is my ref_point,and dem.grd... While I run GACOS_correction.csh,its trun out to be wrong， 2

here is my GACOS data 3 What should I do？

Best wishes！

esrivas17 commented 1 year ago

I see your Gacos grid is slightly bigger in one of the boundaries (xmax). I recommend you to either make your DEM bigger enough with respect to GACOS or make the GACOS grids smaller. make sure to have a prudent difference in each of the boundaries maybe 0.3 ?? Just to make sure that the algorithm doesn't fail when you oroject them to radar coordinates with proj_ll2ra,csh Cheers

Yaoshangheng commented 1 year ago

Yes，I am working on it. Thanks any way.

Yaoshangheng commented 1 year ago

I see your Gacos grid is slightly bigger in one of the boundaries (xmax). I recommend you to either make your DEM bigger enough with respect to GACOS or make the GACOS grids smaller. make sure to have a prudent difference in each of the boundaries maybe 0.3 ?? Just to make sure that the algorithm doesn't fail when you oroject them to radar coordinates with proj_ll2ra,csh Cheers

Hi~new situation I have changed GACOS grids smaller，only do in F1/intf_all Here is my list_interferograms,

1 1 2 Here is baseline_table.dat 1 3 After I runed GACOS_correction.csh，It seemed something is wrong？ 1 1 1 4

esrivas17 commented 1 year ago

oh ok, sorry. Probably this is due to the changes I made in my last commit. you can comment out in operation.csh from line 61 to 68. I will fix this bug later :) (hopefully it's that)

Yaoshangheng commented 1 year ago

Yes！It works. but I still can't got right phasefilt_GACOS_corrected.grd file，looks like “grd files not same size”，size problem. 1 1 1 2

Anyway I will check my grd and try. Here is another question My AOI is cover both IW1(F1) and IW2 (F2),Which of the step should I take,（1） Run GACOS_correction.csh script separately and then do the merge process under the GMTSAR SBAS workflow? （2）or do GACOS_correction.csh after merge? if so how to prepare my master.PRM and ".LED" file? Where can I find them? 1 3 1 5

Yaoshangheng commented 1 year ago

I checked both phasefilt_ref.grd and szpddm_phase_LOS.grd，grd file do not same size. Did I made a mistake of selecting on the dem.grd or GACOS range or something？ 1 1

Yaoshangheng commented 1 year ago

I set the same coordinate LAT、LON number both GACOS and dem.grd. "not same size"problem solved. Sorry for bothering.

While my AOI is cover both IW1(F1) and IW2 (F2),Which of the step should I take,（1） Run GACOS_correction.csh script separately and then do the merge process under the GMTSAR SBAS workflow? （2）or do GACOS_correction.csh after merge? if so how to prepare my master.PRM and ".LED" file? Where can I find them?

esrivas17 commented 1 year ago

Hi. Yes that's a tricky problem. I dont know if you already solved it. I believe that first you would have to merge them before launching the gacos scripts. about the master.PRM and LED files is a good question. maybe you can compare both to see if they are the same and just use one of them. I was supposed to implement some scripts for the case of two or more subswaths. At the moment, the script only works for one

Yaoshangheng commented 1 year ago

Hi. Yes that's a tricky problem. I dont know if you already solved it. I believe that first you would have to merge them before launching the gacos scripts. about the master.PRM and LED files is a good question. maybe you can compare both to see if they are the same and just use one of them. I was supposed to implement some scripts for the case of two or more subswaths. At the moment, the script only works for one

Yes，I have solved the problem. Thanks for your work and your reply.

Have a good day!