Grey relational analysis in the metric space of continuous functions: Foundations, extensions, and applications

Applied Mathematical Modelling, Journal Year: 2025, Volume and Issue: unknown, P. 115978 - 115978

Published: Jan. 1, 2025

Language: Английский

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Quantitative assessment of urban rain island effect and driving factors in Zhengzhou city

Journal of Water and Climate Change, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

ABSTRACT In this article, a new method framework called Pettitt mutation test-Wavelet analysis-Gray relational analysis (PWG) is proposed to systematically quantify the trend, periodicity, and driving factors of urban rain island effect (URI) in Zhengzhou city. The results show that URI has been significantly enhanced study area since 2001, with growth rates annual rainfall enhancement coefficient (θyear) series flood season (θflood) during development period being 0.0059 0.0083 respectively, more pronounced season. Meanwhile, main periods are 10a 16a while presenting 17a 4a minor periods. Lastly, urbanization rate, temperature, wind speed, relative humidity, sunshine duration leading URI, among which rate contributes most, correlation degree 0.921. This clarifies trend time dimension internal formation mechanism provides guidance for control safety Zhengzhou, important practical value.

Language: Английский

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Mixed-frequency fusion grey panel model for spatiotemporal prediction of photovoltaic power generation

Renewable Energy, Journal Year: 2025, Volume and Issue: unknown, P. 123055 - 123055

Published: April 1, 2025

Language: Английский

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A grey incidence model with cumulative time-delay effects and its applications

Applied Mathematical Modelling, Journal Year: 2025, Volume and Issue: unknown, P. 116144 - 116144

Published: April 1, 2025

Language: Английский

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