Search found 37 matches

by dingky
Thu Mar 18, 2021 12:01 pm
Forum: Support
Topic: MODIS atmospheric correction.
Replies: 3
Views: 3496

MODIS atmospheric correction.

Hello everyone, I have many problems when using polymer to process modis. :? :? I would like to know how to do atmospheric correction for modis by polymer-v4.13. How to deal with modis L0 data MODIS00.A2020317.0420_1.PDS? I don't know how to convert MODIS00.A2020317.0420_1.PDS into polymer input for...
by dingky
Thu Mar 18, 2021 3:57 am
Forum: Support
Topic: Problems encountered when processing MDOIS
Replies: 15
Views: 9514

Re: Problems encountered when processing MDOIS

Hello everyone, How do I run Modis in polymer-v4.13. Py. I didn't find Modis in the help file. How to use. Py (including input/output file format). ~/polyner-v4.13$ ./modis_L1c.py /hone/ding/data/nodisoo3/T2015137O005o0.L1A_LAC And I got the wrong message: bash: ./ modis_L1C.py: No such file or dire...
by dingky
Sat Mar 13, 2021 5:04 am
Forum: Support
Topic: Problems encountered when processing MDOIS
Replies: 15
Views: 9514

Re: Problems encountered when processing MDOIS

thank you so much for your suggestion, The modis_L1C.py I downloaded did not execute successfully. Could you please tell me how to run modis_L1C.py and how to get the data in .L1A format.I did not find the l2gen script.I did not find the l2gen script. I don’t know if the format of l2gen's input and ...
by dingky
Thu Dec 31, 2020 3:27 am
Forum: Support
Topic: Problems encountered when processing MDOIS
Replies: 15
Views: 9514

Problems encountered when processing MDOIS

Hello!

I encountered an error message when using polymer v4.13 to process MODIS T20171210000.L1A_LAC: the sensor could not be recognized.
How do I convert L1a to L1c?
Thank you very much if you can give some examples of code

Thank you very much for your answers!

Regards,

ding
by dingky
Fri Nov 20, 2020 7:00 am
Forum: Support
Topic: How to process landsat 7 data with POLYMER-v4.13?
Replies: 1
Views: 3450

How to process landsat 7 data with POLYMER-v4.13?

Hello fsteinmetz!

How to process landsat 7 data with POLYMER-v4.13?



Regards,
ding
by dingky
Wed Sep 23, 2020 4:09 am
Forum: Support
Topic: Problems encountered when processing landsat-8 data
Replies: 5
Views: 4482

Re: Problems encountered when processing landsat-8 data

Hi fsteinmetz,

Thank you for your reply!
I am in the process of processing landsat-8 data
Image
After data processing
Image
Is this result normal?


Kind regards,

ding
by dingky
Tue Sep 22, 2020 1:34 pm
Forum: Support
Topic: Why there are many NaN in processing sentinel-2 ?
Replies: 10
Views: 7273

Re: Why there are many NaN in processing sentinel-2 ?

Hello fsteinmetz , Thank you very much for your patience and help! There is no difference between the results I got when using GSW and not using GSW, neither of them has the reflectivity of land. Can polymer algorithm only perform atmospheric correction on water bodies? Can it perform atmospheric co...
by dingky
Mon Sep 21, 2020 1:18 pm
Forum: Support
Topic: Problems encountered in processing sentinel2 data using polymer4.13
Replies: 3
Views: 2887

Re: Problems encountered in processing sentinel2 data using polymer4.13

Hello,François I modified it with reference to your suggestion, and then I got the following error message after running Traceback (most recent call last): File "/home/ding/polymer-v4.13/Sentinel2_process.py", line 12, in <module> from polymer.level2_hdf import Level2_hdf ImportError: cannot import ...
by dingky
Mon Sep 21, 2020 1:10 pm
Forum: Support
Topic: Problems encountered when processing landsat-8 data
Replies: 5
Views: 4482

Re: Problems encountered when processing landsat-8 data

Hi fsteinmetz,


Thank you very much for your answers, can you talk more about it, I did not understand how to use

Code: Select all

the l8_angles LC08_..._ANG.txt BOTH 1 -b 1 code

Kind regards,

ding
by dingky
Sat Sep 19, 2020 2:53 am
Forum: Support
Topic: Problems encountered in processing sentinel2 data using polymer4.13
Replies: 3
Views: 2887

Problems encountered in processing sentinel2 data using polymer4.13

Hello everyone, When I run the following script from polymer.main import run_atm_corr from polymer.level1_msi import Level1_MSI from polymer.gsw import GSW import polymer.level2_hdf run_atm_corr( Level1_MSI('/home/ding/data/S2A_MSIL1C_20170402T024541_N0204_R132_T50RNV_20170402T025302/S2A_MSIL1C_2017...