Routray et al. (2025) Observational and numerical simulation study of tropical cyclones using oceansat-3 scatterometer derived surface winds

Identification

• Journal: Elsevier eBooks
• Year: 2025
• Date: 2025-11-14
• Authors: Ashish Routray, Devajyoti Dutta, Vivek Kumar Singh, Biranchi Kumar Mahala
• DOI: 10.1016/b978-0-443-31380-6.00013-1

Research Groups

• National Centre for Medium Range Weather Forecasting (NCMRWF), Ministry of Earth Sciences (MoES), Noida, Uttar Pradesh, India
• Indian Institute of Tropical Meteorology (New Delhi Branch), MoES, New Delhi, India
• School of Applied Sciences, Kalinga Institute of Industrial Technology (KIIT) Deemed to be University, Bhubaneswar, Odisha, India

Short Summary

This study aims to enhance tropical cyclone (TC) predictions in the North Indian Ocean by improving the representation of initial vortex location and structure. It proposes to achieve this through observational and numerical simulation, specifically utilizing Oceansat-3 scatterometer-derived surface winds for assimilation into high-resolution numerical weather prediction models.

Objective

• To enhance tropical cyclone (TC) predictions in the North Indian Ocean by correctly representing the preliminary vortex location and initial structure of the storm.
• This is to be achieved by assimilating available satellite observation datasets, specifically Oceansat-3 scatterometer-derived surface winds, into high-resolution numerical weather prediction (NWP) models.

Study Configuration

• Spatial Scale: North Indian Ocean (including the Bay of Bengal and the Arabian Sea), focusing on densely populated coastal regions.
• Temporal Scale: Initial vortex formation and subsequent intensification stages of tropical cyclones.

Methodology and Data

• Models used: High-resolution numerical weather prediction (NWP) models; high-resolution mesoscale models (specific names not provided in the text).
• Data sources: Satellite observation datasets, with a specific focus on Oceansat-3 scatterometer-derived surface winds. Traditional ship-based and buoy-based data are mentioned as sparse.

Main Results

The provided text is an introduction and does not contain the main results of the study.

Contributions

• Addresses the limitations of current global satellite techniques in precisely capturing the position, intensity, and structure of initial tropical cyclone vortices due to coarser spatial and temporal resolution.
• Aims to improve the accuracy of tropical cyclone genesis, intensification, and dissipation predictions by enhancing the representation of initial vortex location and structure through satellite data assimilation.
• Emphasizes the value of reliable ocean surface wind observations, particularly from Oceansat-3 scatterometer, for meteorological and oceanographic applications during critical TC development stages.

Funding

• No funding information is provided in the text.

Citation

@article{Routray2025Observational,
  author = {Routray, Ashish and Dutta, Devajyoti and Singh, Vivek Kumar and Mahala, Biranchi Kumar},
  title = {Observational and numerical simulation study of tropical cyclones using oceansat-3 scatterometer derived surface winds},
  journal = {Elsevier eBooks},
  year = {2025},
  doi = {10.1016/b978-0-443-31380-6.00013-1},
  url = {https://doi.org/10.1016/b978-0-443-31380-6.00013-1}
}