Tropical Cyclone Intensity Estimation Using Multi-Dimensional Convolutional Neural Networks from Geostationary Satellite Data

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dc.contributor.author Lee, Juhyun ko
dc.contributor.author Im, Jungho ko
dc.contributor.author Cha, Dong-Hyun ko
dc.contributor.author Park, Haemi ko
dc.contributor.author Sim, Seongmun ko
dc.date.available 2020-02-13T08:41:09Z -
dc.date.created 2020-01-13 ko
dc.date.issued 2020-01 ko
dc.identifier.citation REMOTE SENSING, v.12, no.1, pp.108 ko
dc.identifier.issn 2072-4292 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/31129 -
dc.description.abstract For a long time, researchers have tried to find a way to analyze tropical cyclone (TC) intensity in real-time. Since there is no standardized method for estimating TC intensity and the most widely used method is a manual algorithm using satellite-based cloud images, there is a bias that varies depending on the TC center and shape. In this study, we adopted convolutional neural networks (CNNs) which are part of a state-of-art approach that analyzes image patterns to estimate TC intensity by mimicking human cloud pattern recognition. Both two dimensional-CNN (2D-CNN) and three-dimensional-CNN (3D-CNN) were used to analyze the relationship between multi-spectral geostationary satellite images and TC intensity. Our best-optimized model produced a root mean squared error (RMSE) of 8.32 kts, resulting in better performance (~35%) than the existing model using the CNN-based approach with a single channel image. Moreover, we analyzed the characteristics of multi-spectral satellite-based TC images according to intensity using a heat map, which is one of the visualization means of CNNs. It shows that the stronger the intensity of the TC, the greater the influence of the TC center in the lower atmosphere. This is consistent with the results from the existing TC initialization method with numerical simulations based on dynamical TC models. Our study suggests the possibility that a deep learning approach can be used to interpret the behavior characteristics of TCs. ko
dc.language 영어 ko
dc.publisher Multidisciplinary Digital Publishing Institute (MDPI) ko
dc.title Tropical Cyclone Intensity Estimation Using Multi-Dimensional Convolutional Neural Networks from Geostationary Satellite Data ko
dc.type ARTICLE ko
dc.type.rims ART ko
dc.identifier.doi 10.3390/rs12010108 ko
dc.identifier.url https://www.mdpi.com/2072-4292/12/1/108 ko
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