Floris/update stacs

[FlorisCalkoen]

Hi @EtienneKras,

This is a PR with some nice changes for GCTS, GCTR, DeltaDTM as well as 2 new collections Coastal Zone and Coastal Grid.

• GCTS and GCTR now include a HTTPS href under item.links.alternate
• GCTS and GCTR now use the citation extension
• DeltaDTM is now updated to V1.1 - (bug fix)
• DeltaDTM now includes https hrefs instead of cloud uri's
• DeltaDTM has now a link to the WMS server (instead of an asset). The link is at collection level. This should be communicated with @IoannaMi
• New STACs for a coastal zone (vectorized coastline buffer)
• New STACs for a coastal grid to process data at scale (somewhat similar to Deltares box system)
• All new STACs now use the appropriate asset types
• All new stacs now adhere to best practices on datetime usage

I have tested the four STACs and they look OK. Hopefully you can merge without any trouble!

[FlorisCalkoen]

@IoannaMi @EtienneKras,

So In DeltaDTM I have referenced the WMS now in a STAC Link instead of as an asset. You can see that it nicely shows up in the browser under additional resources.

In PySTAC you can find the link under service:

coclico_catalog = pystac.Catalog.from_file(
    "https://coclico.blob.core.windows.net/stac/v1/catalog.json"
)

ddtm_collection = coclico_catalog.get_child("deltares-delta-dtm")
print(ddtm_collection.get_single_link("service"))

rel "service"
href "https://coclico.avi.deltares.nl/geoserver/cfhp/wms?bbox={bbox-epsg-3857}&format=image/png&service=WMS&version=1.1.1&request=GetMap&srs=EPSG:3857&transparent=true&width=256&height=256&layers=cfhp:HIGH_DEFENDED_MAPS_Mean_spring_tide"
type "application/vnd.ogc.wms_xml"
title "Geoserver WMS Link"

Similarly you can now find https references for STAC items that have a cloud uri in their asset:

coclico_catalog = pystac.Catalog.from_file(
    "https://coclico.blob.core.windows.net/stac/v1/catalog.json"
)
coastal_zone_collection = coclico_catalog.get_child("coastal-grid")
item = coastal_zone_collection.get_item("coastal_grid_z6_10000m")
href = item.assets["data"].href
print(href)

'az://coastal-grid/release/2024-12-10/coastal_grid_z6_10000m.parquet'

# the https protocol is stored under alternate
print(item.get_single_link("alternate"))

rel "alternate"
href "https://coclico.blob.core.windows.net/coastal-grid/release/2024-12-10/coastal_grid_z6_10000m.parquet"
type "application/vnd.apache.parquet"
title "HTTPS access"