## 5 Summary and Recommendations
; writing--original draft preparation, S.C.P. and R.J.B. writing--review and editing, S.C.P., R.J.B., C.B.H., J.R., M.R., E.D. and M.V. ; visualization, S.C.P. ; supervision, S.C.P. ; project administration, S.C.P. ; funding acquisition, S.C.P., C.B.H. and J.R. All authors have read and agreed to the published version of the manuscript. **Funding:** S.C.P. is funded by the U.S. Department of Energy via a sub-contract to Sandia National Laboratory and NASA grant #80 NSSC21K1489. Computational resources to S.C.P. used in these analyses are provided by the NSF Extreme Science and Engineering Discovery Environment (XSEDE and XSEDE2) (award TG-ATM170024). R.J.B. was funded by US Department of Energy (DE-SC0016438). C.B.H. and E.D. were funded by EUDP grant 64021-0003: IEA Task 46--Erosion of wind turbine blades. S.T.K. and J.R. are supported by the project \"Estimation and Prevention of Erosion on Off-Shore Wind Turbine Blades\" (102235103) funded by the Academia Agreement between the University of Bergen and Equinor. **Data Availability Statement:** Data from the DoE ARM site are available from [[https://www.arm.gov/data/](https://www.arm.gov/data/)]([https://www.arm.gov/data/](https://www.arm.gov/data/)) (accessed on 3 November 2021). Data from the UK DiVeN project are available from; [[https://catalogue.ceda.ac.uk](https://catalogue.ceda.ac.uk)]([https://catalogue.ceda.ac.uk](https://catalogue.ceda.ac.uk)) (accessed on 8 October 2021). Disdrometer data for the closure experiment at Cornell University are available upon request from S.C.P. DSD for Bergen are collected by Prof. [PERSON] from GFI/UiB and are available on request from the site principal investigators [PERSON] and [PERSON]. The Bergen wind data and the NORA3 hindcast data set are provided by the Norwegian Meteorological Service (MET.no) and can be downloaded at [[https://frost.met.no/index](https://frost.met.no/index)]([https://frost.met.no/index](https://frost.met.no/index)) (accessed on 12 March 2022), and [[https://thefts.met.no/thefts/catalog/nora3/catalog.html](https://thefts.met.no/thefts/catalog/nora3/catalog.html)]([https://thefts.met.no/thefts/catalog/nora3/catalog.html](https://thefts.met.no/thefts/catalog/nora3/catalog.html)) (accessed on 12 March 2022), respectively. Data from the Danish site is available upon request to E.D., while that from WiELera are available from M.R. Data from the GPCC are available from; [[http://www.psl.noa.gov/data](http://www.psl.noa.gov/data)]([http://www.psl.noa.gov/data](http://www.psl.noa.gov/data)) (gridded/data.gpec.html (accessed on 31 July 2022). Data from GCHN are available from; [[https://www.ncei.noa.gov/products/land-based-stations/global-historical-climatology-network-monthly](https://www.ncei.noa.gov/products/land-based-stations/global-historical-climatology-network-monthly)]([https://www.ncei.noa.gov/products/land-based-stations/global-historical-climatology-network-monthly](https://www.ncei.noa.gov/products/land-based-stations/global-historical-climatology-network-monthly)) (accessed on 22 July 2022). Data from the NASA Passive Microwave Hall Climatology Data Products V1 data set are available for download from: [[https://search.earthdata.nasa.gov/](https://search.earthdata.nasa.gov/)]([https://search.earthdata.nasa.gov/](https://search.earthdata.nasa.gov/)) (accessed on 21 July 2022). ERA5 output are available for download from [[https://cds.climate.copernicus.eu/](https://cds.climate.copernicus.eu/)]([https://cds.climate.copernicus.eu/](https://cds.climate.copernicus.eu/)) (accessed on 7 July 2021). **Conflicts of Interest:** The authors declare no conflict of interest. **Nomenclature**