Analysing the influences of ENSO and PDO on water discharge from the Yangtze River into the sea

Peng, Jun; Luo, Xiao; Liu, Feng; Zhang, Zihao

doi:10.1002/hyp.11484

Cited by 20 publications

(8 citation statements)

References 87 publications

(118 reference statements)

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“…Continuous wavelet transform (CWT) [66] was adopted to analyze the multi-scale periodic characteristics of each RH series. Morlet wavelet was selected as the basic wavelet, and was calculated as follows:…”

Section: Continuous Wavelet Transform (Cwt)mentioning

confidence: 99%

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Spatiotemporal Variation in Relative Humidity in Guangdong, China, from 1959 to 2017

Liu

Yang

Xing-hu

2020

Water

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Despite the marked influence of relative humidity (RH) on ecosystems and human society, the spatiotemporal pattern of RH is far from clearly understood. This study analyzed the spatiotemporal variation in RH in Guangdong Province, South China, in the period of 1959–2017. The RH data were collected from 74 national standard meteorological stations. The spatiotemporal variation in RH was evaluated using rotate empirical orthogonal function (REOF) zoning, Mann–Kendall test, and wavelet transform methods. Based on the REOF decomposition situation of monthly RH field, Guangdong was divided into six subareas. The annual mean of RH in the whole province was 78.90%. In terms of spatial variation, overall annual mean RH decreased from southwest to northeast in the province. Temporally, annual mean RH showed a declining trend in the last six decades. Particularly, the RH in the Pearl River Delta area declined at the rate of 1.349%/10a. Mann–Kendall tests showed that mutation points of annual mean RH mostly appeared in the 1990s, especially in the early 1990s. Continuous wavelet transforms of annual mean RH displayed that inland subareas have similar cycle characteristics, and the east coast and Pearl River Delta have no significant period in most time domains. The results provide new understanding of RH variation in the last six decades in South China, which is valuable for detecting climate change, monitoring hazardous weather, and predicting future environmental change.

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Section: Continuous Wavelet Transform (Cwt)mentioning

confidence: 99%

“…t is the time variable. Continuous wavelet transform (CWT) was developed based on Fourier transform [66]. It adopted variable size and movable change window for spectrum analysis, which can obtain time-frequency coupling characteristics of data series, and became an effective tool for analyzing time series [67,68].…”

Section: Continuous Wavelet Transform (Cwt)mentioning

confidence: 99%

Spatiotemporal Variation in Relative Humidity in Guangdong, China, from 1959 to 2017

Liu

Yang

Xing-hu

2020

Water

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“…Across the south‐eastern United States, Clark, Nnaji, and Huang () and Risko and Martinez () have also shown ENSO and PDO influences on streamflow, whereas Sagarika, Kalra, and Ahmad () reveal strong regional effects on U.S. stream flow variability by the PDO and interdecadal variations in the Atlantic Basin. Beyond North America, hydrology‐related ENSO and/or PDO influences are also apparent for India (Panda, Kumar, Ghosh, & Mohanty, ), Chile (Nunez, Rivera, Oyarzun, & Arumí, ; Rubio‐Alvarez & McPhee, ), Brazil (Sahu et al, ), China (Ouyang et al, ; Peng, Luo, Liu, & Zhang, ), the United Kingdom (Folland et al, ), central Karakoram Himalayan region (Veettil, Bianchini, & Bremer, ), Mexico (de la Lanza‐Espino, Gomez‐Rodriguez, & Islas, ), and Australia (Liu, Zhang, Yang, Gu, & Xiao, ; Shams, Anwar, Lamb, & Bari, ). At the global level, Su et al (), based on an analysis of 916 of the world's largest ocean‐reaching rivers for the period 1948–2004, found ENSO to be a significant driver of interannual river flow for 36% of the rivers analysed, with the PDO accounting for river flow variation for over 25% of the rivers.…”

Section: Modes Of Climate Variability and River Flowmentioning

confidence: 99%

Climate and rivers

McGregor

2019

River Research & Apps

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Over the last few decades as hydrologists have slowly raised their line of sight above the watershed boundary, it has become increasingly recognised that what happens in the atmosphere, as a major source of moisture for the terrestrial branch of the hydrological cycle, can strongly influence river dynamics at a range of spatial and temporal scales. Notwithstanding this, there is still a tendency for some in the river research community to restrict their gaze to the river channel or floodplain. However, Geoff Petts, the person to which this special issue is dedicated, understood well and widely encouraged a holistic view of river catchment processes. This included an acknowledgment of the role of climate, in its broadest sense, in shaping what happens within and without the river channel. The purpose of this paper therefore is to offer a broad overview of the role of some aspects of climate science in advancing knowledge in river research. Topics to be addressed include the role of climate in influencing river flow regimes, a consideration of the large‐scale climate mechanisms that drive hydrological variability within river basins at interannual to decadal timescales and atmospheric rivers and their link to surface hydrology. In reviewing these topics, a number of key knowledge gaps have emerged including attributing the causes of river flow regime changes to any one particular cause, the nonstationary and asymmetric forcing of river regimes by modes of climate variability and establishing links between atmospheric rivers, and terrestrial river channel processes, fluvial habitats, and ecological change.

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“…These sediments are potentially valuable for understanding the role of continental shelves in transporting detrital materials from land to deep ocean [6,7]. Over the past decades, many researchers attempted to link sedimentary processes there to the past changes in sea level, Asian monsoon, deltaic developments and ocean currents [8][9][10]. For instance, Zhang, et al [11] combined sedimentary dynamics and geochemical properties of the north inner continental shelf of the ECS and quantitatively reconstructed the East Asian winter monsoon (EAWM) in the last century.…”

Section: Introductionmentioning

confidence: 99%

A 5000-Year Sedimentary Record of East Asian Winter Monsoon from the Northern Muddy Area of the East China Sea

Chen

Lyu

et al. 2020

Atmosphere

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The variability of the winter monsoon is one of the key components of the Asian monsoon, significantly influencing paleoenvironmental evolution in East Asia. However, whether the winter or the summer monsoon is the dominated factor controlling sedimentary dynamics of the muddy areas of the continental shelves of the East China Sea is debated, due to lack of consistency between various winter monsoon proxies in previous studies. In this work, the sediments of the upper part of core ECS-DZ1 with several marine surface samples were studied in terms of sediment grain size and radiocarbon dating, and changes in sedimentary dynamics of the northern muddy area of the ECS over the past 5000 years were documented. The main findings are as follows: (1) regional sedimentary dynamics were low and did not significantly change since the middle Holocene; (2) coarse particles are the dominated component in the sediments; (3) a proxy can be derived to indicate changes in winter monsoon. Based on this reconstructed winter monsoon record, we found that this record was generally negatively correlated to the stalagmite-based summer monsoon variability over the past 3500 years, but positively correlated before that. Moreover, this record can be well correlated to changes in the Kuroshio Current and the Bond ice-rafting debris events in the North Atlantic on millennial timescales, inferring large-scale and common atmospheric dynamics across the Asian continent over the past 5000 years. Therefore, we concluded that the winter monsoon is the predominant factor controlling sedimentary dynamics in the northern part of the ECS and proposed that the contribution of coarse particles may be one of potential indices to identify the role of the winter and the summer monsoons in sedimentary evolution.

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Analysing the influences of ENSO and PDO on water discharge from the Yangtze River into the sea

Cited by 20 publications

References 87 publications

Spatiotemporal Variation in Relative Humidity in Guangdong, China, from 1959 to 2017

Spatiotemporal Variation in Relative Humidity in Guangdong, China, from 1959 to 2017

Climate and rivers

A 5000-Year Sedimentary Record of East Asian Winter Monsoon from the Northern Muddy Area of the East China Sea

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