Sure. Getting reliable data all parties can agree on is one of the biggest challenges to parametric insurance. The data sources I hear about most often are US governmental agencies – and this is a problem, since the US political system is not stable enough to finance its governmental agencies reliably. (Most recently I recall concerns around budget and staffing cuts for NOAA and USGS.)

That said, sane practice for parametric insurance is to have redundancy in data sources, and an agreed procedure for settling differences in conclusions resulting from relying on either of them alone.