WASDI flood maps integration

[dmoglioni]

@aapopescu
Here's a preview of the cumulative flood maps for St Polten Vienna (2024-09-22, flood sum: 84 days)

• blue: permanent water
• green: flooded

zoom1

zoom2

[dmoglioni]

As already reported to WASDI, there are some points to be further investigated about the maps (StPolten Vienna) they provided:

1. From a first analysis on the St Polten area we noticed that flood events are present on 8/23 of the files provided-excluding the cumulative (namely Aug 3-15-27-30, Sept 8-11-16-20), with the most relevant ones being just 2 (Sept, 16th and 20th)
2. on Sept 11th and Sept 16th the areas circled in red appears to be flooded (blue: permanent water, green: flooded) whereas in the cumulative map this is not the case (below the corresponding screenshots)

Sept 11th

Sept 16th

Cumulative

[dmoglioni]

WASDI provided an updated cumulative map for StPolten but there are two aspects to be clarified:

• In the previous cumulative (2024-09-22, 84 days) the permanent water areas (blue in the example attached) were better delimited whereas in the newly provided map (2024-10-01, 94 days) they appear to be coarsely pixellated
• In some cases the flooded areas (green pixels in the examples) are within the permanent water ones

Old cumulative (2024-09-22, 84days) example:

New cumulative (2024-10-01, 94days) example:

Concerning Niederosterreich region:

• they didn't identified flooded areas within the bbox as described in the EMSR pdf shared. They've been asked to double check it and and focus the analysis considering also 2024-09-23, the date the files refers to.
  EMSR764_AOI01_GRA_PRODUCT_27000_map_v1.pdf

[dmoglioni]

@aapopescu

Preview of the latest provided (Nov, 15) cumulative map (2024-07-01_2024-10-01) for StPolten Vienna:

[dmoglioni]

Below the final preview of the (Nov, 15) cumulative map (2024-07-01_2024-10-01) for StPolten Vienna.
To make them more relevant, only the flooded areas are visualized, using red as it is common for these type of events (example: https://custom-scripts.sentinel-hub.com/custom-scripts/sentinel-1/flood_mapping/)

[santilland]

Adding permanent water to SH layer definition.
AOI checking what to substitute to have spain area.

[dmoglioni]

Permanent water information added to SH layer definition.
@AparicioSF could you please add the legend (Blue = Permanent Water, Red = Flooded)

[dmoglioni]

@aapopescu
Valencia province flooded area identified:

It spans over around 5700 km2 and we can exchange it for the previously requested Brazil area (4900 km2), asking WASDI also for a Urban Map for Valencia (to be exchanged with Porto Alegre for example)

[dmoglioni]

https://rapidmapping.emergency.copernicus.eu/EMSR773

[santilland]

Missing Description / Metadata (might be extracted from NOR definition) @aapopescu will request more information per email

[dmoglioni]

AoI: Valencia province and Valencia urban map
Time span: Oct 23 - Nov 23, 2024

Valencia province polygon:

POLYGON((-0.24841676120747058 39.6289220361516,-0.28813650596851703 39.50513852292619,-0.2985041449635495 39.36048278561376,-0.2051203559010495 39.17548727552379,-0.2078669379322995 39.061483305341675,-0.5860864774573171 39.102507569210104,-0.7065177844674309 39.11472615978256,-0.7994832711650446 39.16102494675761,-1.060945250419627 39.26044300232999,-1.3100476105335845 39.31882897673824,-1.4318522085593233 39.346941719805486,-1.526190986272562 39.39839374036145,-1.4755319950039603 39.55252616287132,-1.3754345271728385 39.701034141433354,-0.9491947101255249 39.707417943171876,-0.24841676120747058 39.6289220361516))

[dmoglioni]

Valencia province cumulative (2024-09-13_2024-11-30, 79 days) map: