search

yannforget / conda-recipes

Conda recipes for remote sensing
8 stars 3 forks source link

LaSRC Usage #2

Closed AhmedShamli closed 7 years ago

AhmedShamli commented 7 years ago

Hi, Thank you for putting this together. I have install it correctly using the provided installation instructions and was able to run "convert_lpgs_to_espa" to convert the downloaded L1 product to ESPA format. My understanding is that I need to update the auxiliary data before running LaSRC, and the USGS repository refers to the updatelads.py script for doing so. Is the updatelads.py included in this package or I need to download it!!

Thanks,

yannforget commented 7 years ago

Hi, Yes, to use LaSRC you need some data derived from MODIS products. I didn't include the python2 scripts from USGS, but you can download it and run it manually:

python2 updatelads.py --help

You will need an username and a password to access the ladssci.nascom.nasa.gov server, as described here (just say that you need an access in order to use the LaSRC software).

Personally, I do not like the way this script works. I use another homemade script for auxiliary data acquisition that only downloads the data needed for a specific date. I will make it public soon

AhmedShamli commented 7 years ago

Thank you. that was really helpful.

yannforget commented 7 years ago

Hi Ahmed,

Just an update on this topic: USGS just released a new version of the script that doesn't need any username/password and uses only publicly accessible servers:

https://github.com/USGS-EROS/espa-surface-reflectance/blob/laads_hotrelease/lasrc/landsat_aux/scripts/updatelads.py

So if you are still facing this issue, just use this script :)

Yann.

AhmedShamli commented 7 years ago

Hi Yann,

Awesome, I will give it a try. Thank you.

Ahmed