Search found 6 matches

by fecgiannini
Tue Dec 22, 2020 1:10 pm
Forum: Support
Topic: SVC gains for Polymer 4.10 and 4.13
Replies: 3
Views: 3697

Re: SVC gains for Polymer 4.10 and 4.13

Thank you Francois,
So, the coefficients are different due to the algorithm update, but not an update in the SVC. Is that correct?
Thank you
by fecgiannini
Tue Nov 17, 2020 5:41 pm
Forum: Support
Topic: SVC gains for Polymer 4.10 and 4.13
Replies: 3
Views: 3697

SVC gains for Polymer 4.10 and 4.13

Hi,
I have a question regarding the SVC gains. Are the SVC gains applied in version 4.10 and 4.13 the same?
According to the "release notes" of v 4.12, the SVC would have been updated, but I wonder if they were only applied back, as in version 4.11 they were set to 'zero'.
Thank you a lot
by fecgiannini
Tue Jul 28, 2020 1:41 pm
Forum: Support
Topic: No-data values in Polymer Level2
Replies: 6
Views: 4239

Re: No-data values in Polymer Level2

Hi François, Sorry that you ended up replying the same thing twice - just saw the email. In a match-up work for British Columbia waters, I observed that this flag perfectly indicate pixels where the Chl-a retrievals failed. Removing those pixels, which are not that many, the statistical performance ...
by fecgiannini
Mon Jul 27, 2020 5:22 pm
Forum: Support
Topic: No-data values in Polymer Level2
Replies: 6
Views: 4239

Re: No-data values in Polymer Level2

Hi François Thank you for your reply. Yes, I thought of removing line 111 from Level2.py. I will give it a try. If you dont mind, I will try to explain in more details what I am doing, so maybe you have a clue. Usually in the mosaic script I set a couple of "conditions" to exclude pixels that I want...
by fecgiannini
Mon Jul 27, 2020 2:44 pm
Forum: Support
Topic: No-data values in Polymer Level2
Replies: 6
Views: 4239

Re: No-data values in Polymer Level2

Hi François No problem. Thank you I actually found a discussion in that forum and it seems the problem is the way that the original files to be mosaiced have their "no-data" set up. For example, instead of NaN, the netcdf files have No-data as a generic number 9.969E36. However, the GUI is able to c...
by fecgiannini
Fri Jul 24, 2020 8:52 pm
Forum: Support
Topic: No-data values in Polymer Level2
Replies: 6
Views: 4239

No-data values in Polymer Level2

Hi I am trying to use the gpt-snap tool to run a mosaic operator on polymer products. However I am having a problem to use the following expression: if bit_set(bitmask,10) then NaN else logchl It works perfectly in the SNAP GUI interface, but in the gpt-snap, the final netcdf turn 'NaN' into '0.0000...