Consolidate mountain shadow algorithms in S2 Idepix

[marpet]

Currently there are two different mountain shadow algorithms.

1. S2IdepixMountainShadowOp
2. MountainShadowFlagger

The first one is based on https://desktop.arcgis.com/de/arcmap/10.3/tools/spatial-analyst-toolbox/how-hillshade-works.htm
and was initially implemented by Jan.

[JanWev]

The second one was developed by Dagmar using the relative path calculated by the cloud shadow algorithm. It is only triggered if the cloud shadow is executed.

[JanWev]

S2 tile IDs for testing:

• 32TPT (Innsbruck, Austria)
• 32UME (Bremerhaven, Germany)
• 44RLU (Himalaya, northeast India)
• 19KGV (Huanuni, Bolivia)
• 16SFD (Chattanooga, USA)

[JanWev]

32TPT:
https://scihub.copernicus.eu/dhus/odata/v1/Products('fee101a0-bb5f-4ca2-8ca0-9125eec12cc3')/$value
https://scihub.copernicus.eu/dhus/odata/v1/Products('06b56420-671f-44ce-98e4-977ad2881bec')/$value

32UME:
https://scihub.copernicus.eu/dhus/odata/v1/Products('506bf661-aaf1-4307-aa8a-a7b7b72cf5ee')/$value
https://scihub.copernicus.eu/dhus/odata/v1/Products('3706c0a0-9c08-402b-b2cb-4b6797e135ee')/$value

44RLU
https://scihub.copernicus.eu/dhus/odata/v1/Products('9875e02d-cc79-4203-a3ed-d4057fa16973')/$value
https://scihub.copernicus.eu/dhus/odata/v1/Products('3cd4fc89-4cbd-4578-b1f0-59192b304fc3')/$value

19KGV
https://scihub.copernicus.eu/dhus/odata/v1/Products('ce60710c-9011-4025-a3b3-a2b6e5c1a538')/$value
https://scihub.copernicus.eu/dhus/odata/v1/Products('b6d335f1-9444-42bf-a9bf-d859da8ba95a')/$value

16SFD:
https://scihub.copernicus.eu/dhus/odata/v1/Products('42e5a26c-18ca-45ae-80a4-2bff78e94c6b')/$value
https://scihub.copernicus.eu/dhus/odata/v1/Products('3e2fa24f-7ef0-4968-91dc-d6fb2a53192f')/$value

[TonioF]

Hi, I have implemented that there are now two different flags for hillshade and relative path mountain shadow in addition to the combined mountain shadow. The code is available in the branch toniof-two-ms-flags, a nbm can be found under fs1/projects/bcinternal/IdePix_PixBox/IdePix/S2_terrain_shadow . Happy weekend, Tonio Am 03.12.2020 um 16:58 schrieb Jan Wevers:

…

Ich habe eine erste ordentlich Analyse gemacht: https://brockmannconsult.sharepoint.com/:p:/s/IdePix/ES-MrPe2I9FFpdVtRDT9FusBzmzNqsO9zxxqpYOhWLx_Mg?e=etXCFX Wir müssen uns unbedingt diesen code angucken und verstehen, wie er funktionier: https://github.com/zoran-cuckovic/QGIS-terrain-shading/blob/master/shading_algorithm.py — You are receiving this because you were assigned. Reply to this email directly, view it on GitHub <#22 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAMGGLTOEF52HITI5G347YDSS6YRFANCNFSM4UCASNIQ>.

-- Tonio Fincke Brockmann Consult GmbH Chrysanderstr. 1 D-21029 Hamburg, Germany Tel: +49 (0)40-696389-323 email: [email protected] skype-id: tonio.fincke.bc www.brockmann-consult.de Twitter: @BrockmannCon Amtsgericht Hamburg HRB 157689 Geschäftsführer Dr. Carsten Brockmann

[marpet]

Hallo, Ich habe jetzt Tonios Änderung <#31> für S2 Idepix in den Master übernommen und eine Modul zum Testen erstellt. Alles auf der Karte eingetragen: Reduce S2 topo shadow to hillshade in master branch in IdePix Tasks Das nbm-Modul hängt an der Karte, ich habe die Karte jetzt erstmal Jan zugewiesen, solange es noch ums Testen geht. Ciao Marco From: Tonio Fincke <[email protected]> Sent: Freitag, 4. Dezember 2020 18:59 To: bcdev/snap-idepix <[email protected]> Cc: Marco Peters <[email protected]>; Author <[email protected]> Subject: Re: [bcdev/snap-idepix] Consolidate mountain shadow algorithms in S2 Idepix (#22) Hi, I have implemented that there are now two different flags for hillshade and relative path mountain shadow in addition to the combined mountain shadow. The code is available in the branch toniof-two-ms-flags, a nbm can be found under fs1/projects/bcinternal/IdePix_PixBox/IdePix/S2_terrain_shadow . Happy weekend, Tonio Am 03.12.2020 um 16:58 schrieb Jan Wevers:

…

Ich habe eine erste ordentlich Analyse gemacht: <https://brockmannconsult.sharepoint.com/:p:/s/IdePix/ES-MrPe2I9FFpdVtRDT9FusBzmzNqsO9zxxqpYOhWLx_Mg?e=etXCFX> https://brockmannconsult.sharepoint.com/:p:/s/IdePix/ES-MrPe2I9FFpdVtRDT9FusBzmzNqsO9zxxqpYOhWLx_Mg?e=etXCFX Wir müssen uns unbedingt diesen code angucken und verstehen, wie er funktionier: https://github.com/zoran-cuckovic/QGIS-terrain-shading/blob/master/shading_algorithm.py — You are receiving this because you were assigned. Reply to this email directly, view it on GitHub <#22 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAMGGLTOEF52HITI5G347YDSS6YRFANCNFSM4UCASNIQ>.

-- Tonio Fincke Brockmann Consult GmbH Chrysanderstr. 1 D-21029 Hamburg, Germany Tel: +49 (0)40-696389-323 email: [email protected] <mailto:[email protected]> skype-id: tonio.fincke.bc www.brockmann-consult.de <http://www.brockmann-consult.de> Twitter: @BrockmannCon Amtsgericht Hamburg HRB 157689 Geschäftsführer Dr. Carsten Brockmann — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#22 (comment)> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/AABR6LVF2E6ANL7S6DHBQK3STEPNTANCNFSM4UCASNIQ> . <https://github.com/notifications/beacon/AABR6LWUIIQA4VDCVU6SDZTSTEPNTA5CNFSM4UCASNI2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOFQFSVLQ.gif>