Clustering the Diurnal Cycle of Precipitation Using Global Satellite Data

IF 4.6 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY
Penghan Chen, Aifang Chen, Shuiqing Yin, Yuxin Li, Junguo Liu
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引用次数: 0

Abstract

The diurnal cycle of precipitation (DCP) is a fundamental component of the precipitation cycles across various temporal scales. However, the absence of a comprehensive and intuitive clustering description of the DCP, including precipitation amount, frequency, intensity, and seasonality on the global scale, has impeded understanding of climate impacts on society. This study investigates the diurnal cycle and its seasonal differences in global precipitation using hierarchical clustering and high-resolution satellite precipitation data. Results indicate that regions with coastal and topographic complexity exhibit intricate clustering patterns globally. Significant inter-cluster differences suggest that the precipitation amount and frequency have stronger diurnal cycles than that of the precipitation intensity. Seasonal cluster transitions indicate that the global DCP exhibits significant seasonal differences. This study provides multiple sets of information-rich and user-friendly maps of the DCP, enhancing research on sub-daily precipitation mechanisms and their climatic impacts.

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来源期刊
Geophysical Research Letters
Geophysical Research Letters 地学-地球科学综合
CiteScore
9.00
自引率
9.60%
发文量
1588
审稿时长
2.2 months
期刊介绍: Geophysical Research Letters (GRL) publishes high-impact, innovative, and timely research on major scientific advances in all the major geoscience disciplines. Papers are communications-length articles and should have broad and immediate implications in their discipline or across the geosciences. GRLmaintains the fastest turn-around of all high-impact publications in the geosciences and works closely with authors to ensure broad visibility of top papers.
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