New study uncovers the dynamics of extreme climate events in Guangdong using satellite data

The escalating frequency and intensity of extreme climate events, such as severe droughts and floods, pose significant challenges worldwide. Traditional methods of studying these phenomena have been limited in scope and detail. However, the advent of advanced satellite technology and data integration techniques has opened new horizons in understanding and predicting these events. A study has successfully mapped the intricate patterns of extreme drought and wetness in Guangdong, China, employing a novel approach that integrates Global Navigation Satellite System (GNSS) data with precipitation records. 

A new study (https://doi.org/10.1186/s43020-023-00121-6) published on 1^st January 2024 in the journal Satellite Navigation, researchers from Southern University of Science and Technology harnessed high-resolution data from an extensive network of GNSS stations focusing on Guangdong province, a region highly susceptible to climate variability. This data was meticulously analyzed to characterize the region's extreme drought and wetness events over time. The study revealed a clear seasonal pattern in precipitation efficiency, with fluctuations between 10 to 25% annually. It also identified a higher frequency of extreme events in the Pearl River Delta Plain, correlating these patterns with broader climatic trends.

Dr. K. Chen, the study's lead researcher, states, "Our work is a significant leap in understanding the complexities of climate events in Guangdong. The integration of GNSS data with precipitation metrics has allowed us to dissect the nuanced behaviors of drought and wetness, providing a template for future climatic studies and disaster preparedness strategies."

This study is a critical advancement in climate research, particularly for regions like Guangdong, where climate extremes have profound impacts on agriculture, ecosystems, and urban planning. The methodology developed in this research not only enhances our understanding of climate dynamics but also paves the way for more effective disaster management and mitigation strategies. It demonstrates the immense potential of satellite technology in climate studies, potentially reshaping our approach to environmental monitoring and policy-making globally.

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Reference

DOI

10.1186/s43020-023-00121-6

Original Source URL

https://doi.org/10.1186/s43020-023-00121-6

Funding information

This research was funded by the Guangdong Natural Science Fund 2023—General Program (Grant No. 2023A1515011062), and the Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology (2022B1212010002).

About Satellite Navigation

Satellite Navigation (E-ISSN: 2662-1363; ISSN: 2662-9291) is the official journal of Aerospace Information Research Institute, Chinese Academy of Sciences. The aims is to report innovative ideas, new results or progress on the theoretical techniques and applications of satellite navigation. The journal welcomes original articles, reviews and commentaries.