Hui Hu, the Martin C. Jischke Professor of Aerospace Engineering at Iowa State University, has studied icing of wind turbine blades for years.
Here’s a news release from the arhives about his work: https://www.newswise.com/articles/engineers-study-icingde-icing-of-wind-turbine-blades-to-improve-winter-power-production
Here’s some data/information about his studies: https://www.aere.iastate.edu/~huhui/WT-icing.html
And here’s a recent paper in the journal Renewable Energy about field studies of wind turbine icing: https://www.sciencedirect.com/science/article/pii/S0960148120319406
Here’s more information about Hu: https://www.aere.iastate.edu/directory/profile/huhui
He is generally available by phone or email.