View historical map and site data

[Excellencedev]

/claim #1162
/closes #1162

Add a date picker to the map to view site data and WMS overlays as of a selected past date.

The backend /sites endpoint now accepts an optional at parameter to return collectionData as of that timestamp, derived from time-series data. The frontend Home Map includes a date picker that updates site markers and passes the selected date as a TIME parameter to the WMS SST Anomaly layer. Sofar layers remain current as they do not support time parameters.

Demo video - Free Data Management Platform for Monitoring of Marine Ecosystems - Brave 2025-10-18 16-44-36.zip

[Excellencedev]

@ericboucher Review please

[ericboucher]

Nice work! I left a few comments inline. Could you add a few screenshots/video of your changes to the PR body?

[Excellencedev]

Nice work! I left a few comments inline. Could you add a few screenshots/video of your changes to the PR body?

I will do so
2 checks fail because of changes not related to my PR @ericboucher

[Excellencedev]

@ericboucher resolved your comments
I will provide demo video soon

[Excellencedev]

@ericboucher please guide me on the demo

[ericboucher]

@Excellencedev what's blocking you? You can generate mock data locally, but you can also email me at hello at ovio.org and I will send you a read only access to one of our databases
Anything else blocking you?

[Excellencedev]

@ericboucher Here is the demo video. Is this good enough ?. I had to compress it to a zip because it was >10MB
Free Data Management Platform for Monitoring of Marine Ecosystems - Brave 2025-10-18 16-44-36.zip

[Excellencedev]

@ericboucher Hello?

[ericboucher]

Thanks for your effort,

It is a great start. It would be nice to see a working version, where changing the dates changing the colors of the spotters and markers.
If it helps you can connect your backend API to the read only database I shared via email
It would likely be easier to rely on the daily_data table, as the latest_data only has data for the latest info available for each site (as its name suggests)

It would also be nice to :

• propose a better UI for the date selector. Maybe as a popup modal on a calendar icon somewhere. Or hide it if we can’t find a nice way and only have the URL-based control.
• have the date filtering work for the site page as well.

Thanks again for your work!