Assessment of CYGNSS Wind Speed Retrievals in Tropical Cyclones

The NASA CYGNSS satellite constellation measures ocean surface winds using the existing network of Global Navigation Satellite System (GNSS) and was designed for measurements in tropical cyclones (TCs). Here, we focus on a consistent methodology to validate multiple wind data records currently available public, some focusing low moderate speeds, others high winds, storm-centric product TC analyses, dataset from NOAA that applies track-wise bias correction. Our goal is document their differences provide guidance users. assessment (2017–2020) performed here at global scales all regimes, with particular TCs, radiometers are specifically developed winds: SMAP, WindSat, AMSR2 TC-winds. high-wind products display significant biases TCs very large uncertainties. Similar uncertainties were found product. On other hand, show promising skill approaching level suitable meteorology studies. At level, overall unbiased regimes 0–30 m/s selected test assimilation into analysis, CCMP, also presented here.