ANALYSIS OF THE RELATIONSHIP BETWEEN METEOROLOGICAL FIELDS AND LINEAR RAINFALL BANDS IN THE WESTERN CHUGOKU REGION OF JAPAN USING SELF-ORGANIZING MAP

Yuma Hironaka; Koji Asai; Koji Nishiyama

doi:10.64697/978-90-835589-7-4_41WC-P2004-cd

ANALYSIS OF THE RELATIONSHIP BETWEEN METEOROLOGICAL FIELDS AND LINEAR RAINFALL BANDS IN THE WESTERN CHUGOKU REGION OF JAPAN USING SELF-ORGANIZING MAP

Yuma Hironaka
, Koji Asai
, Koji Nishiyama

Water and Material Cycles System

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this study, the relationship between meteorological fields and linear rainfall bands was analyzed for the western Chugoku region using Self-Organizing Map (SOM) with three parameters: equivalent temperature, wind speed with an east-west and north-south component. The SOM created in this study showed that meteorological fields in Group 7, Group 22, Group 27, and Group 31 are at high risk for the occurrence of linear rainfall bands. The results showed that in the western Chugoku region, the southwesterly winds bring hot and humid air from the East China Sea, which influences the development of linear rainfall bands. In addition, the location of linear rainfall bands was found to be characteristic of each group in SOM.

Original language	English
Title of host publication	Proceedings of the 41st IAHR World Congress, 2025
Editors	Adrian Wing-Keung Law, Jenn Wei Er
Publisher	International Association for Hydro-Environment Engineering and Research
Pages	1601-1606
Number of pages	6
ISBN (Print)	9789083558974
DOIs	https://doi.org/10.64697/978-90-835589-7-4_41WC-P2004-cd
Publication status	Published - 2025
Event	41st IAHR World Congress, 2025 - Singapore, Singapore Duration: Jun 22 2015 → Jun 27 2015

Publication series

Name	Proceedings of the IAHR World Congress
ISSN (Print)	2521-7119
ISSN (Electronic)	2521-716X

Conference

Conference	41st IAHR World Congress, 2025
Country/Territory	Singapore
City	Singapore
Period	6/22/15 → 6/27/15

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Water Science and Technology
Ocean Engineering
Engineering (miscellaneous)

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10.64697/978-90-835589-7-4_41WC-P2004-cd

Cite this

Hironaka, Y., Asai, K., & Nishiyama, K. (2025). ANALYSIS OF THE RELATIONSHIP BETWEEN METEOROLOGICAL FIELDS AND LINEAR RAINFALL BANDS IN THE WESTERN CHUGOKU REGION OF JAPAN USING SELF-ORGANIZING MAP. In A. Wing-Keung Law, & J. W. Er (Eds.), Proceedings of the 41st IAHR World Congress, 2025 (pp. 1601-1606). (Proceedings of the IAHR World Congress). International Association for Hydro-Environment Engineering and Research. https://doi.org/10.64697/978-90-835589-7-4_41WC-P2004-cd

ANALYSIS OF THE RELATIONSHIP BETWEEN METEOROLOGICAL FIELDS AND LINEAR RAINFALL BANDS IN THE WESTERN CHUGOKU REGION OF JAPAN USING SELF-ORGANIZING MAP. / Hironaka, Yuma; Asai, Koji; Nishiyama, Koji.
Proceedings of the 41st IAHR World Congress, 2025. ed. / Adrian Wing-Keung Law; Jenn Wei Er. International Association for Hydro-Environment Engineering and Research, 2025. p. 1601-1606 (Proceedings of the IAHR World Congress).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hironaka, Y, Asai, K & Nishiyama, K 2025, ANALYSIS OF THE RELATIONSHIP BETWEEN METEOROLOGICAL FIELDS AND LINEAR RAINFALL BANDS IN THE WESTERN CHUGOKU REGION OF JAPAN USING SELF-ORGANIZING MAP. in A Wing-Keung Law & JW Er (eds), Proceedings of the 41st IAHR World Congress, 2025. Proceedings of the IAHR World Congress, International Association for Hydro-Environment Engineering and Research, pp. 1601-1606, 41st IAHR World Congress, 2025, Singapore, Singapore, 6/22/15. https://doi.org/10.64697/978-90-835589-7-4_41WC-P2004-cd

Hironaka Y, Asai K, Nishiyama K. ANALYSIS OF THE RELATIONSHIP BETWEEN METEOROLOGICAL FIELDS AND LINEAR RAINFALL BANDS IN THE WESTERN CHUGOKU REGION OF JAPAN USING SELF-ORGANIZING MAP. In Wing-Keung Law A, Er JW, editors, Proceedings of the 41st IAHR World Congress, 2025. International Association for Hydro-Environment Engineering and Research. 2025. p. 1601-1606. (Proceedings of the IAHR World Congress). doi: 10.64697/978-90-835589-7-4_41WC-P2004-cd

Hironaka, Yuma ; Asai, Koji ; Nishiyama, Koji. / ANALYSIS OF THE RELATIONSHIP BETWEEN METEOROLOGICAL FIELDS AND LINEAR RAINFALL BANDS IN THE WESTERN CHUGOKU REGION OF JAPAN USING SELF-ORGANIZING MAP. Proceedings of the 41st IAHR World Congress, 2025. editor / Adrian Wing-Keung Law ; Jenn Wei Er. International Association for Hydro-Environment Engineering and Research, 2025. pp. 1601-1606 (Proceedings of the IAHR World Congress).

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title = "ANALYSIS OF THE RELATIONSHIP BETWEEN METEOROLOGICAL FIELDS AND LINEAR RAINFALL BANDS IN THE WESTERN CHUGOKU REGION OF JAPAN USING SELF-ORGANIZING MAP",

abstract = "In this study, the relationship between meteorological fields and linear rainfall bands was analyzed for the western Chugoku region using Self-Organizing Map (SOM) with three parameters: equivalent temperature, wind speed with an east-west and north-south component. The SOM created in this study showed that meteorological fields in Group 7, Group 22, Group 27, and Group 31 are at high risk for the occurrence of linear rainfall bands. The results showed that in the western Chugoku region, the southwesterly winds bring hot and humid air from the East China Sea, which influences the development of linear rainfall bands. In addition, the location of linear rainfall bands was found to be characteristic of each group in SOM.",

keywords = "Chugoku region of Japan, disaster prevention, heavy rain disaster, liner rainfall bands, self-organizing map",

author = "Yuma Hironaka and Koji Asai and Koji Nishiyama",

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AU - Asai, Koji

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N2 - In this study, the relationship between meteorological fields and linear rainfall bands was analyzed for the western Chugoku region using Self-Organizing Map (SOM) with three parameters: equivalent temperature, wind speed with an east-west and north-south component. The SOM created in this study showed that meteorological fields in Group 7, Group 22, Group 27, and Group 31 are at high risk for the occurrence of linear rainfall bands. The results showed that in the western Chugoku region, the southwesterly winds bring hot and humid air from the East China Sea, which influences the development of linear rainfall bands. In addition, the location of linear rainfall bands was found to be characteristic of each group in SOM.

AB - In this study, the relationship between meteorological fields and linear rainfall bands was analyzed for the western Chugoku region using Self-Organizing Map (SOM) with three parameters: equivalent temperature, wind speed with an east-west and north-south component. The SOM created in this study showed that meteorological fields in Group 7, Group 22, Group 27, and Group 31 are at high risk for the occurrence of linear rainfall bands. The results showed that in the western Chugoku region, the southwesterly winds bring hot and humid air from the East China Sea, which influences the development of linear rainfall bands. In addition, the location of linear rainfall bands was found to be characteristic of each group in SOM.

KW - Chugoku region of Japan

KW - disaster prevention

KW - heavy rain disaster

KW - liner rainfall bands

KW - self-organizing map

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ANALYSIS OF THE RELATIONSHIP BETWEEN METEOROLOGICAL FIELDS AND LINEAR RAINFALL BANDS IN THE WESTERN CHUGOKU REGION OF JAPAN USING SELF-ORGANIZING MAP

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