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Characterization of Tropical Cyclone Intensity Using the HY-2B Scatterometer Wind Data.
Characterization of Tropical Cyclone Intensity Using the HY-2B Scatterometer Wind Data.
- Source :
- Remote Sensing; Feb2022, Vol. 14 Issue 4, p1035, 1p
- Publication Year :
- 2022
-
Abstract
- The estimation of tropical cyclone (TC) intensity using Ku-band scatterometer data is challenging due to rain perturbation and signal saturation in the radar backscatter measurements. In this paper, an alternative approach to directly taking the maximum scatterometer-derived wind speed is proposed to assess the TC intensity. First, the TC center location is identified based on the unique characteristics of wind stress divergence/curl near the TC core. Then the radial extent of 17-m/s winds (i.e., R17) is calculated using the wind field data from the Haiyang-2B (HY-2B) scatterometer (HSCAT). The feasibility of HSCAT wind radii in determining TC intensity is evaluated using the maximum sustained wind speed (MSW) in the China Meteorological Administration best-track database. It shows that the HSCAT R17 value generally better correlates with the best-track MSW than the HSCAT maximum wind speed, therefore indicating the potential of using the HSCAT data to improve the TC nowcasting capabilities. [ABSTRACT FROM AUTHOR]
- Subjects :
- TROPICAL cyclones
WIND speed
DATABASE administration
BACKSCATTERING
Subjects
Details
- Language :
- English
- ISSN :
- 20724292
- Volume :
- 14
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Remote Sensing
- Publication Type :
- Academic Journal
- Accession number :
- 155713196
- Full Text :
- https://doi.org/10.3390/rs14041035