Hello!
I am new using POLYMER. And I want to use POLYMER-v4.11 to processlandsat 8 data. But I don't know how to start.
Because in the README.txt file and example.py I can't find any instructions on how to process landsat8 data. Does the README.txt file not updated? Can someone tell me?
Many thanks!
southocean
Does anybody know how to process landsat 8 data with POLYMER-v4.11?
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- fsteinmetz
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Re: Does anybody know how to process landsat 8 data with POLYMER-v4.11?
Hello,
Landsat8 processing is quite new and experimental and the documentation is not ideal, but all sensors are processed in the same way.
For Landsat8, you can write a python script in polymer's root directory, which looks like :
But please note that Level1_OLI, unlike the other sensors, requires the angles to be pre-calculated using a program (l8_angles, using the following command:
Kind regards,
François
Landsat8 processing is quite new and experimental and the documentation is not ideal, but all sensors are processed in the same way.
For Landsat8, you can write a python script in polymer's root directory, which looks like :
Code: Select all
from polymer.main import run_atm_corr
from polymer.level1_landsat8 import Level1_OLI
from polymer.level2_nc import Level2_NETCDF
run_atm_corr(
Level1_OLI(<landsat8_dirname>),
Level2_NETCDF()
)
l8_angles LC08_..._ANG.txt BOTH 1 -b 1
) that is not distributed with Polymer, and which is available at https://github.com/DHI-GRAS/l8-anglesKind regards,
François
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Re: Does anybody know how to process landsat 8 data with POLYMER-v4.11?
Hello François,
Thank you for your reply.But it took me a long time to try to install l8angles and I failed. I browse the website you provide(https://github.com/DHI-GRAS/l8-angles) ,and I found that the two installation methods provided in the readme file are based on the windows platform.
The l8angles installation package of anaconda is based on the windows platform(https://anaconda.org/search?q=l8angles), while I use the Linux platform to run this command
it showed that the package could not be found.
Do you have any good suggestions for me?
Many thanks!
southocean
Thank you for your reply.But it took me a long time to try to install l8angles and I failed. I browse the website you provide(https://github.com/DHI-GRAS/l8-angles) ,and I found that the two installation methods provided in the readme file are based on the windows platform.
The l8angles installation package of anaconda is based on the windows platform(https://anaconda.org/search?q=l8angles), while I use the Linux platform to run this command
Code: Select all
conda config --add channels DHI-GRAS
conda install py-l8angles
Do you have any good suggestions for me?
Many thanks!
southocean
- fsteinmetz
- Site Admin
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Re: Does anybody know how to process landsat 8 data with POLYMER-v4.11?
Hi
Apologies, I was not pointing you to the proper code repository. Please find the landsat angles generation code and documentation at the following address :
https://www.usgs.gov/land-resources/nli ... ient-files
You can download the source code at the bottom of this page, see section Tools and Documentation, Landsat 8 Operational Land Imager (OLI)/Thermal Infrared Sensor (TIRS) (.tgz) - note that this is a command line tool that needs to be run prior to Polymer execution, not a Python module.
With kind regards,
François
Apologies, I was not pointing you to the proper code repository. Please find the landsat angles generation code and documentation at the following address :
https://www.usgs.gov/land-resources/nli ... ient-files
You can download the source code at the bottom of this page, see section Tools and Documentation, Landsat 8 Operational Land Imager (OLI)/Thermal Infrared Sensor (TIRS) (.tgz) - note that this is a command line tool that needs to be run prior to Polymer execution, not a Python module.
With kind regards,
François