Opening landsat 8 image

[mattcooper]

HI, me again!
I am now trying, and failing to open Landsat 8 images.
I have downloaded a product from the USGS explorer:

and unpacked the .tar file as i can’t open that folder (it gives a ‘No appropriate product reader found’ error)
I also tried created a .zip folder from the unpacked .tar, but this will not open either, whereas a downloaded Sentinel.zip folder will open.
When trying to open the products in the unpacked folder i am offered the following files:

but dont have an option to open the RGB image?
I would like to process this data to give me either an NDVI or LAI dataset for the image, but don’t see band 8 (for NDVI band maths?

edit: I have also tried and failed to open any of the MTL files, and using >import>optical>Landsat>** doesn’t seem to work either!
Thanks

[marpet]

This is from Collection2, right?
Unfortunately, the Collection 2 is not yet supported.

[mattcooper]

Well that would explain it!
I take it collection 1 is supported?

[marpet]

Yes, they are readable, but some features are not yet supported.

[SIITBX-310] Improve reading of Landsat data from collection one - JIRA

[mattcooper]

That’s a bugger, I was hoping to be able to use Landsat and sentinel together to produce a better time series of LAI or NDVI variations in my ROI

[marpet]

You can calculate LAI and NDVI on Landsat data from Collection 1.

[mattcooper]

As long as there is a decent image with no cloud!

[mattcooper]

May have made a booboo there, do you mean landsat8 collection 1?

[marpet]

yes, I mean Landsat8 Collection 1

[mattcooper]

I’m still haviung trouble opening the Landsat images. the only way i can do it is to open each band individually. Is there a step I am missing?

[ABraun]

actually it should work with File > Import > Optical Sensors > Landsat > Landsat 8 30m > Select MTL file

This opens all tiffs as a stack including correct metadata

[mattcooper]

For some reason it doesn’t!

as you caqn see, the files are there, but SNAP doesn’t seem to see them.
I did manage to open the product by using >open product and opening the .xml file, which gave me all the bands, so i could then process and subset
I have been talking to @oana_hogoiu, there were some issues with updates, I did a clean install and found that SNAP was performing better

[ABraun]

Where is your data from? In your screenshot I am missing the annotated text files, especially MTL.txt

The import worked in my case with data downloaded from the USGS Earth Explorer which is provided like this

[mattcooper]

Thats what’s confusing me too! In the screenshot i have my windows file manager and the SNAP import product window open to the same folder.
the data is downloaded from the USGS Earth explorer, Landsat collection 1 and as you can see, I have the files there.
when i use >open product it shows the files:

but as in my previous screenshot when i use >import…>landsat8 30m theey’re not!

[mattcooper]

@ABraun I’ve tried downloading again from the USGS earth explorer, but I never get the MTL.txt file.
Am I selecting the right collection?
I check the box labelled Landsat 8 OLI/TIRS C1 Level2

[abruescas]

I downloaded last week a couple of Landsat 8 L2 without any problems. They can be read in SNAP (collection 1). Maybe you should check in the USGS help or Forum.

[mattcooper]

@abruescas did you get 11 or 14 files when you unpacked it?

[abruescas]

There are 11 files. TIR data are nor included in L2, only reflectances.

[mattcooper]

Do you have the MTL.txt file?

[abruescas]