Search found 306 matches

by fsteinmetz
Thu Feb 06, 2020 10:37 am
Forum: Support
Topic: Use this for Sentinel 3
Replies: 3
Views: 7423

Re: Use this for Sentinel 3

Dear Kim,
Please use the command make all for the compilation. More information can be found in the README.
Kind regards,
François
by fsteinmetz
Mon Feb 03, 2020 8:55 pm
Forum: Support
Topic: Processing data block size and offset
Replies: 3
Views: 6395

Re: Processing data block size and offset

Dear Karthick, The blocks size and offset are related to how Polymer processes the input product block by block. I guess you'd rather want to process a subset of the image, is that correct? If so, you can pass the options sline, eline, scol and ecol to process a subset of the image. Example: Level1_...
by fsteinmetz
Mon Dec 30, 2019 10:22 pm
Forum: Support
Topic: Polymer running on Sentinel-2 images
Replies: 10
Views: 11379

Re: Polymer running on Sentinel-2 images

Good news !
No, this is just a warning, you can safely ignore it.
Cheers,
François
by fsteinmetz
Fri Dec 20, 2019 8:14 pm
Forum: Support
Topic: Polymer running on Sentinel-2 images
Replies: 10
Views: 11379

Re: Polymer running on Sentinel-2 images

Dear Dalia, It seems that you may be using different versions of python for the compilation and the execution. Please make sure you are using python3 for both and use the following commands : python --version (to verify that you are using python 3) make rebuild python polymer_cli.py (Just in case ./...
by fsteinmetz
Wed Dec 11, 2019 1:07 pm
Forum: Support
Topic: NVIDIA Quadro P2000 and SMARTG
Replies: 3
Views: 24564

Re: NVIDIA Quadro P2000 and SMARTG

Hi Javier, Good to know that Smart-G works on Quadro P-2000, thanks for the feedback. Indeed, we discourage using a card both for graphics display and for CUDA computation, as this creates lags on the display. Internally we use GeForce 1070 graphics cards ; the GeForce 2xxx series may be interesting...
by fsteinmetz
Tue Dec 03, 2019 1:12 pm
Forum: Support
Topic: Some OLCI results show strange invalid patterns
Replies: 3
Views: 6332

Re: Some OLCI results show strange invalid patterns

Hi Martin, Thanks for your feedback. This kind of patterns is typically due to un unstability of the algorithm. Polymer uses the result of previous pixel to initialize the minimization of current pixel, which can lead to successive (vertically) bad pixels within a processing block (which is a horizo...
by fsteinmetz
Mon Oct 14, 2019 10:03 am
Forum: Support
Topic: polymer 4.12 throws ValueError "masked arrays not supported"
Replies: 3
Views: 6894

Re: polymer 4.12 throws ValueError "masked arrays not supported"

Hi Martin, Thanks for the detailed report ! Indeed there is a bug, external ancillary data can not be applied to OLCI due to the NetCDF library returning masked arrays. This can be fixed with the following patch : diff --git a/polymer/level1_olci.py b/polymer/level1_olci.py index 10a4a63..55787d6 10...
by fsteinmetz
Fri Oct 04, 2019 11:26 am
Forum: Support
Topic: Sentinel 2 - missing 4 bands
Replies: 2
Views: 6594

Re: Sentinel 2 - missing 4 bands

Dear Federica, Indeed these bands are not included by default. To include band 842, pass the following argument to run_atm_corr : run_atm_corr(..., bands_rw=[443,490,560,665,705,740,783,842,865, 1610, ]) I will make it default in the next polymer release. You could do the same for the other bands, b...
by fsteinmetz
Thu Sep 12, 2019 10:18 am
Forum: Releases
Topic: Polymer v4.12
Replies: 0
Views: 56025

Polymer v4.12

By downloading Polymer you agree to the licence terms and conditions . In this version : OLCI SVC coefficients have been updated Support for ERA5 ancillary data has been added Support for VIIRS/JPSS1 has been added Fixed bugs in landsat8 and HICO readers See more details in the changelog . Don't hes...
by fsteinmetz
Mon Sep 09, 2019 9:24 am
Forum: Support
Topic: Processing data for particular lat long
Replies: 3
Views: 6075

Re: Processing data for particular lat long

Dear Karthick,

Indeed, all Level1 readers support the following keywords: sline, eline, scol and ecol.

Example:

Code: Select all

run_atm_corr(
    Level1_OLCI(product_name, sline=1000, eline=1100, scol=300, ecol=400),
    Level2_NETCDF()
)
Cheers,
François