The team coordinating the Climate shelter network in Barcelona city belongs to the Climate Change and Sustainability Office, from the Barcelona City Council.

More information at:

https://www.barcelona.cat/barcelona-pel-clima/en/specific-actions/climate-shelters-network  

More information in some of the open source code made available online:

https://gitlab.com/ajbcn_occs/climate-shelters

And some more code can be shared as opensource upon request, like the one indicated in our use case in this USE platoform.