Search found 306 matches

by fsteinmetz
Mon Mar 08, 2021 10:26 pm
Forum: Support
Topic: SRTM data - USGS DDS 2.0
Replies: 2
Views: 2859

Re: SRTM data - USGS DDS 2.0

Hi Blake, Thanks for the information, this will indeed require some fix in the future to restore the access to SRTM data. Meanwhile, a workaround may be to download the files somehow and store them in a directory, as .hgt.zip files. The SRTM3 instance should point to this directory (SRTM3('path')). ...
by fsteinmetz
Tue Feb 09, 2021 7:43 pm
Forum: Support
Topic: NetCDF: HDF error when processing MODIST and VIIRSN
Replies: 4
Views: 3585

Re: NetCDF: HDF error when processing MODIST and VIIRSN

Hi Guillaume,
Good to know that you could identify the issue ! Thanks for the notification.
Cheers,
François
by fsteinmetz
Thu Feb 04, 2021 10:10 pm
Forum: Support
Topic: processing large data
Replies: 1
Views: 2531

Re: processing large data

Hi Brenner, Indeed processing is slower with hyperspectral data. The number of wavelengths provided as output can make a difference (bands_rw). The bands used for atmospheric correction (bands_corr and bands_oc) will also make the most significant difference, but changing these bands will affect the...
by fsteinmetz
Fri Jan 22, 2021 5:54 pm
Forum: Support
Topic: Ancillary ERA-INTERIM data
Replies: 2
Views: 2874

Re: Ancillary ERA-INTERIM data

Hi Blake,

I never experienced this. What error message do you get ?
Just in case, you may also want to try Ancillary_ERA5 which use a diffent API.
Kind regards,
François
by fsteinmetz
Fri Jan 22, 2021 5:44 pm
Forum: Support
Topic: What is Bitmask 2112
Replies: 10
Views: 7677

Re: What is Bitmask 2112

Hi Vishnu,

Yes you can pass the following option to run_atm_corr :

bands_rw=[400,412,443,490,510,560,620,665,674,681,709,754,779,865,1020],

which is equivalent to setting it in params.py:defaults_olci

Indeed, this band should be probably included by default !

Kind regards,

François
by fsteinmetz
Mon Jan 18, 2021 11:29 am
Forum: Support
Topic: How to use Polymer to process GOCI data?
Replies: 1
Views: 2523

Re: How to use Polymer to process GOCI data?

Hello,

Polymer has indeed been applied to GOCI data in the past, as mentioned on the homepage, but the algorithm has been entirely rewritten and currently, GOCI data are not supported. The GOCI reader would have to be rewritten as well.

Kind regards,
François
by fsteinmetz
Mon Jan 18, 2021 10:53 am
Forum: Support
Topic: how to get the rhow for the MODIS land bands
Replies: 1
Views: 3275

Re: how to get the rhow for the MODIS land bands

Hi Zheegang, I understand that you would like to get the water reflectance at MODIS bands that don't saturate. However I don't think you will be able to do it properly. Let me explain. It is indeed possible to adjust the bands provided by Polymer. This is done via the argument bands_rw to the functi...
by fsteinmetz
Tue Jan 12, 2021 1:28 pm
Forum: Support
Topic: make auxdata_all crashing
Replies: 10
Views: 7316

Re: make auxdata_all crashing

Indeed, the issue is not fully solved yet unfortunately.
I have just uploaded the required files to the forum, so that you can download them until the issue is fully solved: see topic viewtopic.php?f=5&t=93
Cheers,
François
by fsteinmetz
Tue Jan 12, 2021 1:24 pm
Forum: Releases
Topic: Auxiliary data
Replies: 0
Views: 47426

Auxiliary data

Polymer's auxiliary data should usually be available with the command "make auxdata_all", but in case it does not work, the auxiliary data can be downloaded here and uncompressed in Polymer's folder.
by fsteinmetz
Fri Jan 08, 2021 9:08 am
Forum: Support
Topic: make auxdata_all crashing
Replies: 10
Views: 7316

Re: make auxdata_all crashing

For your information, the files are now available again.
Cheers,
François