Display grid of granules

s2tbx
#1

Is it possible to display the grid of granules of a given S2 scene so that you can
select which granules to download or process with sen2cor?
Thanks

Convert and subset kml file of tiles
#2

Hi alobo,

By granules, you mean L1C Tiles? If so, the S2A Tiling parameters (TILPAR) KML file is your saviour.

https://sentinel.esa.int/documents/247904/1955685/S2A_OPER_GIP_TILPAR_MPC__20151209T095117_V20150622T000000_21000101T000000_B00.kml/ec05e22c-a2bc-4a13-9e84-02d5257b09a8

This can be utilised in conjunction with the relevant S2 Acquisition Plan https://sentinel.esa.int/web/sentinel/missions/sentinel-2/acquisition-plans

Cheers

Jan

S2 MPC Operations Manager

#3

I mean those under the GRANULE folder of the SE2 L1C dataset,
does each of these files corresponde to one “tile”?
Agus

#4

Hello Agus,

Yes. In the L1C, the granules are described as Tiles.

More here:
https://sentinel.esa.int/web/sentinel/missions/sentinel-2/data-products
https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/processing-levels/level-1
https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/product-types
https://sentinel.esa.int/web/sentinel/technical-guides/sentinel-2-msi/level-1c-processing

Cheers

Jan

#5

ok, understood. But I refuse having that huge kml file among my friends.
The real user-friendly option would have been having an equivalent kml within each
image folder for the involved granules (=tiles) only. BTW, if those items are named tiles in the manual, do not see the reason to call
the folder “granules”.
Thanks,
Agus

#6

Agus,

You have a “detector footprint” gml file in the QI_DATA folder, for instance
S2A_OPER_MSK_DETFOO_MPC__20160128T114214_A001335_T32WPC_B08_MSIL1C.gml
With this you can visualize the location of the tile.

Regarding the name of the folder, you are right, it’s not very straightforward.

I have the impression that it would make sense for many users to have access to smaller products containing just one tile. What is your opinion about this?

SC

#7

ok, having the individual gml is probably good, we’ll try with them.
Regarding your question, the best would be being able to download a region of interest, as far as that subscene could be
atmospherically corrected (or were atmospherically corrected…). As this does not seem
likely to happen, being able to select tile(s) with wget would be much better than the
current situation in which most users are downloading very large scenes for often small
areas of interest.
Thanks for your assistance.
Agus