This study compares synchronous in situ wind observation data from the coastal zone (a coastal weather station and an experimental marine buoy) and the open water area (the D-6 offshore platform) with ERA5, CFSv2, and CMEMS NRTL4 reanalysis data. According to the observation results, the strongest correlation for wind speed magnitude was found between the weather buoy and the NRTL4 reanalysis (r = 0. 84). The correlation between the coastal weather station and all offshore observation points was the lowest (0. 48 ≤ r ≤ 0. 65). The analysis results demonstrated the necessity of using additional in situ measurement tools in the coastal zone, where reanalysis data are distorted and require additional verification, including for assessment of smaller-scale phenomena (e. g. , breeze). Due to land shielding effects, the coastal weather station proved the least effective measurement tool, thus its use is limited. The most successful measurement tool for the coastal zone was the weather buoy. Its proximity to the shore and reduced shielding due to its marine deployment allowed for the recording of coastal phenomena, which are inaccessible to the reanalysis and the offshore platform, with minimal distortion.
Krek et al. (Sun,) studied this question.