I found this: https://sta.paradoxwikis.com/Sectors_and_locations I have a couple of 'research sector' on the map, and on Tundra it produces 30/12hr and in marsh 16/12hr so the 35% mentioned here can't be right. But there is a truth to a boost in finding survivors in Urban areas and a Research outpost in tundra is better.
Is it an idea to add this to descriptions?