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Créer un jeu de données mosaïque à partir des données Sentinel 2 niveau 2A

ThomasSpehs

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Je dispose d'une énorme quantité de données Sentinel 2 niveau 2A téléchargées depuis le Copernicus hub. Les données incluent des images à des résolutions de 10, 20 et 60 m. Dans le bon vieux ArcMap (10.8), je peux accéder à toutes ces données en tant qu'images multispectrales en ouvrant le fichier XML Sentinel et en sélectionnant soit le paquet de 10, 20 ou 60 m. Dans Pro 2.5, je peux seulement accéder aux données de 10 m, qui ne comportent que 4 bandes. "Ajouter des données" affiche tous les paquets référencés dans le XML ("BOA Reflectance-20 m", etc.), mais - contrairement à ArcMap - ils ne peuvent pas être ajoutés.<\/P>

Ce n'est pas idéal, mais je peux vivre avec ça - j'ai ArcMap. Je me demande quand même pourquoi cela n'est pas implémenté dans l'environnement "moderne" Pro...<\/P>

Plus sérieux encore, ni avec ArcMap ni avec Pro, je ne peux intégrer les données dans un jeu de données mosaïque. Lors de la création du jeu de données mosaïque, j'utilise la définition de produit "Sentinel 2 MSI", mais plus tard, lorsque j'essaie d'ajouter les données Sentinel 2 niveau 2A, des rasters sont trouvés mais non ajoutés. Il semble que seuls les données Sentinel 2 niveau 1 soient supportées, ce qui est un inconvénient sérieux.<\/P>

Quelqu'un sait-il a) si c'est un manque général (niveau 2 non supporté), ou si c'est mon problème spécifique ?, b) s'il existe une solution pour ouvrir les données de 20m dans Pro (bien sûr, je peux ouvrir une bande individuelle de 20m comme couche jp2 en panchromatique, mais cela ne m'aide pas, j'ai besoin d'une couche multispectrale), c) comment puis-je intégrer toutes les bandes à toutes les résolutions dans un jeu de données mosaïque ?<\/P><\/BODY><\/HTML>

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Accepted answers

GuenterDoerffel

Thomas,

I am sure we get this sortet out with THIS answer
You have been using the "Add Data" dialog, and, agreed, just checked, there the drop-down to select the processing template to use is not exposed. Here the default method will be used. So the way for you to go is:

Add the folder with your Sentinel-data to your folder connections in the catalog pane:

I added a folder with some Sentinel 2a (unpacked version):

Every single one of them now shows this, when opened:

The little arrow pointing out it is extendable:

Up to this point is the solution for your problem No some additional information on this:

If you do the same thing in a "Add Rasters" context of the Mosaic dataset, it will look like this:

When selecting the Raster Type to be Sentinel-2, there will be the drop-down to specify the processing template to use:

(1) Select the one you want

(2) Or create your own!

(3) Import a (previous saved) one

(4) Edit the one you selected, and export if you want, for later reuse (thats what you would use if you automate with MDCS)

(4) For the one you selected, you can modify and export!

(5) find more relevant settings here, like setting a specific DEM of Orthorectification

We do have routines for 1c "live" from Amazon s3 (thats what we currently use for the Sentinel-Views Services, our Slovak colleagues have published methods on GitHub for 2a from Amazon ... what and how you do it is up to you.

Regards
Guenter

All comments

ThierryLegrain

Note that if the MTD.MSILxx.xml does not open as described in the solution it could be that the file path is too long.
Try storing the Sentinel data in root. see:
https://community.esri.com/t5/imagery-and-remote-sensing-questions/why-a-mtd-msil2a-xml-file-does-not-show-a-boa/m-p/1280859/highlight/true#M8190

WillAnderson

Guenter/Thomas - have either of you ever been able to access recent Sentinel-2 imagery (newer than 3-days-old) from Esri's Sentinel-2 Views or Sentinel-2 Level-2A imagery services? We've never been able to, even when removing filters/def queries. We are also forced to download tiles instead of leveraging the services when providing timely imagery products. Just wondered if either or you have ever been able to access recent imagery (same AWS-hosted data is available via Sinergise's EO Browser and Copernicus SciHub ~7 hours after acquisition).

ThomasSpehs

Dear Guenter,

thank you so much! All fine now. Little bit stupid that I did not figure out by myself. Anyway, thanks a lot for your support!

Thomas

GuenterDoerffel

Thomas,

Add the folder with your Sentinel-data to your folder connections in the catalog pane:

I added a folder with some Sentinel 2a (unpacked version):

Every single one of them now shows this, when opened:

The little arrow pointing out it is extendable:

Up to this point is the solution for your problem No some additional information on this:

If you do the same thing in a "Add Rasters" context of the Mosaic dataset, it will look like this:

When selecting the Raster Type to be Sentinel-2, there will be the drop-down to specify the processing template to use:

(1) Select the one you want

(2) Or create your own!

(3) Import a (previous saved) one

(4) Edit the one you selected, and export if you want, for later reuse (thats what you would use if you automate with MDCS)

(4) For the one you selected, you can modify and export!

(5) find more relevant settings here, like setting a specific DEM of Orthorectification

ThomasSpehs

Hi Guenter,

thanks for your feedback! Regarding your screenshot: this is taken from the 2.5 TOC, right? That is exactly what I would love to have! But I don't get it. Maybe I am doing something completely wrong (sorry for that), but what I am doing is:

1. Add a new map

2. Add data -> Data, navigate to the XML. Looks like this:

Now I have basically two options: click OK. Then I have the 10m BOA data in my TOC, nothing else:

Or I can double-click the XML, then I see this:

In this list, I can select whatever, and double-click, or click OK, the result is in both cases:

Please let me know how you did that miracle :-). As said, in the same machine with ArcMap 10.8, I can add the different packages:

Thus, it seems the data are ok.

Regarding the MDCS, thanks a lot, I didn't know it, will be the first thing to test tomorrow! And contact you if further questions.

GuenterDoerffel

Thomas,
because of your post I just tried:

All of those work just fine! Pro 2.5. And regarding the MosaicDatset: Are you aware of the tools we use for automating these workflows and providing more customized versions of Raster Types? The MDCS toolset? GitHub - Esri/mdcs-py: MDCS is an acronym for Mosaic Dataset Configuration Script and is the entry point to a collection… Might come in handy for this stuff. We also have versions for Amazon bucket access there. Contact me by mail if you like.

Guenter (gdoerffel-at-esri-dot-com)

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