## 5 Conclusions and Discussions  
FY-3F is China's latest morning orbit meteorological satellite, and this article introduces the polarization characteristics of each channel of FY-3F MWHS and MWTS. Unlike FY-3E, the polarization of FY-3F MWHS has been corrected to: Channel 1 is Qv, and the remaining channels are Qh. After confirming the polarization of FY-3F MWHS and MWTS, the ARMS was first used to conduct a simulation comparison among the MWHS and MWTS of FY-3F, FY-3E, and the ATMS of NOAA-20. When comparing standard deviations, the difference between FY-3F MWHS and FY-3E MWHS is not pronounced. FY-3F MWHS is 0.02 K higher than FY-3E MWHS, while the equivalent channels of ATMS are slightly lower than both. The average O-B of FY-3F MWHS is 0.3 K lower than that of FY-3E MWHS. Overall, FY-3F MWHS exhibits slightly improved performance in most channels compared to FY-3E MWHS. For MWTS, the average O-B for FY-3F MWTS is approximately 0.3 K lower than that of FY-3E MWTS, and its standard deviation is also 0.13 K lower. The window channels of ATMS show better performance than MWTS, while for the remaining temperature sounding channels, FY-3F MWTS and ATMS are comparable, with FY-3E MWTS performing the worst. Furthermore, the differences between the ascending and descending orbits of FY-3F and FY-3E are minimal, with relatively more noticeable differences observed in the FY-3F's window channels. In the assessment of striping noise, the striping noise of FY-3E MWHS is about 0.007 higher than that of FY-3F MWHS, and the FY-3E MWTS is about 0.3 higher  
Figure 13: Brightness temperature observations of Hurricane Beryl from FY-3E MWHS channel 1 (**a**) and NOAA-20 ATMS channel 16 (**b**) on 1 July 2024, and from FY-3F MWHS channel 1 (**c**) on 2 July 2024 (units: K). Warm core structures of Hurricane Beryl retrieved from FY-3E at 09:42 UTC (**d**) and NOAA-20 at 17:21 UTC (**e**) on 1 July 2024, as well as from FY-3F at 02:28 UTC (**f**) on 2 July 2024 (units: K). than that of FY-3F MWTS, but both are well controlled around 1. Overall, the striping noise of FY-3F is not much different from that of FY-3E. In the experiment of the TC warm core structure retrieval, the retrieved warm core structures from the three satellites demonstrate good consistency in both magnitude and location. An error analysis was conducted comparing the retrieval results and MiRS products with ERA5 data. The results indicate that the ME between the retrievals and ERA5 is within \(\pm 1\) K, the RMSE is within 1.5 K, and the ME and RMSE of MiRS are \(-0.524\) K and 1.790 K, respectively, which means the retrievals are better than comparable MiRS. The warm core structures of Hurricane Beryl were also retrieved, reflecting the transition of the TC from strong to weak. The performance, differences between ascending and descending orbits, and striping noise are closely related to the instrument's design and calibration methods. This paper aims to provide an overall evaluation and application of the MWHS and MWTS instruments onboard FY-3F. The fundamental causes require further investigation by more specialized researchers. The entire experimental scenario was conducted under clear-sky conditions, and the thoroughness of cloud removal was closely related to the quality of the experimental results. The 23.8 GHz channel and 31.4 GHz channel can be used to retrieve CLWP, but the applicability of the CLWP dual-channel physical retrieval algorithm used for FY-3F (MWTS channels 1 and 2) remains to be discussed. For bias correction, considering the potential quality issues in the early publicly available data, future readers can optimize the correction algorithm using longer-term datasets. Furthermore, due to the lack of dropsonde data within TCs over the Northwest Pacific and the fact that the available TC dropsonde data are limited to the lower layers of the atmosphere, this study utilized ERA5 and comparable operational products for validation.