Premium
Characterization of daily rainfall variability in Hong Kong: A nonlinear dynamic perspective
Author(s) -
Shu Zhenru,
Chan Pak Wai,
Li Qiusheng,
He Yuncheng,
Yan Bowen
Publication year - 2021
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.6891
Subject(s) - climatology , rain gauge , environmental science , recurrence quantification analysis , recurrence plot , atmospheric dynamics , meteorology , nonlinear system , precipitation , geography , geology , atmosphere (unit) , physics , quantum mechanics
Modelling and forecasting of rainfall behaviour are of essential importance in various hydrological and meteorological studies, which depends largely on properly understanding the underlying rainfall dynamics. In this paper, 20‐years (i.e., 2000–2019) measurements of daily rainfall data at 6 rain gauge stations in Hong Kong were analysed in the framework of nonlinear dynamic analysis. Phase space reconstruction (PSR), recurrence plot (RP) and recurrence quantification analysis (RQA) were carried out to identify and characterize the chaotic nature of rainfall dynamics. The results of this study underscore the complex processes and variability that is associated with Hong Kong's rainfall data. The existence of chaos in rainfall process was well recognized across various stations. The rainfall dynamics were further investigated with respect to its inter‐annual and monthly variability. The dependence of rainfall dynamics on different temporal scales was likewise examined, which indicates that the rainfall dynamics at finer resolution are less complex than those at coarser resolution, thus the consequent rainfall variability is less pronounced.