500-year tree-ring reconstruction of Salween River streamflow related to the history of water supply in Southeast Asia

Chen, Feng; Shang, Huaming; Panyushkina, Irina P.; Meko, David M.; Li, Jinbao; Yuan, Yanbin; Yu, Shulong; Chen, Fahu; He, Daming; Luo, Xian

doi:10.1007/s00382-019-04948-1

Cited by 29 publications

(13 citation statements)

References 84 publications

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“…Of these 28 predictors, 5 are located relatively distant (~670 km) to the watershed. We retained these 5 predictors as they contributed additional model skill, as is commonly found in tree-ring hydroclimate and streamflow reconstructions 31 , 45 – 50 , consistent with spatial autocorrelation in climate fields 51 – 53 .…”

Section: Resultsmentioning

confidence: 97%

Seven centuries of reconstructed Brahmaputra River discharge demonstrate underestimated high discharge and flood hazard frequency

Rao

Cook

et al. 2020

Nat Commun

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The lower Brahmaputra River in Bangladesh and Northeast India often floods during the monsoon season, with catastrophic consequences for people throughout the region. While most climate models predict an intensified monsoon and increase in flood risk with warming, robust baseline estimates of natural climate variability in the basin are limited by the short observational record. Here we use a new seven-century (1309–2004 C.E) tree-ring reconstruction of monsoon season Brahmaputra discharge to demonstrate that the early instrumental period (1956–1986 C.E.) ranks amongst the driest of the past seven centuries (13th percentile). Further, flood hazard inferred from the recurrence frequency of high discharge years is severely underestimated by 24–38% in the instrumental record compared to previous centuries and climate model projections. A focus on only recent observations will therefore be insufficient to accurately characterise flood hazard risk in the region, both in the context of natural variability and climate change.

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Section: Resultsmentioning

confidence: 97%

Seven centuries of reconstructed Brahmaputra River discharge demonstrate underestimated high discharge and flood hazard frequency

Rao

Cook

et al. 2020

Nat Commun

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“…To improve our understanding of regional climate change from a long-term perspective, it is necessary to develop another high-resolution paleoclimatic reconstruction. Tree ring, with the characteristics of wide distribution, high resolution and high sensitivity to climate, is an important information carrier of climate change and has a unique position in climate research [5][6][7]. In recent decades, climate reconstructions based on tree-ring data originating from the TP have been widely developed, including temperature [8][9][10][11][12][13], precipitation/drought [14][15][16][17] and river runoff [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

A 479-Year Early Summer Temperature Reconstruction Based on Tree-Ring in the Southeastern Tibetan Plateau, China

Zhang

Zheng

et al. 2021

Atmosphere

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Due to the lack of long-term climate records, our understanding of paleoclimatic variability in the Tibetan Plateau (TP) is still limited. In this study, we developed a tree-ring width (TRW) chronology based on tree-ring cores collected from our study site, southeastern TP. This chronology responded well to the mean maximum temperatures of May–June and was thus used to reconstruct early summer (May–June) maximum temperature during the period 1541–2019. The reconstruction explained 33.6% of the climatic variance during the calibration period 1962–2019. There were 34 extremely warm years (7.2% of total years) and 36 extremely cold years (7.5% of total years) during the reconstruction period. The spatial correlation analysis and the comparison with other local temperature reconstructions confirmed the reliability and representativeness of our reconstruction. The results of the ensemble empirical mode decomposition (EEMD) analysis indicated quasi-oscillations of 2.9–4.2 years, 4.5–8.3 years, 11.1–15.4 years, 20–33.3 years, 50.4 years, 159.7 years, and 250 years in this temperature reconstruction which may be associated with ENSO cycles, solar activity, and PDO.

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“…As the source area of many large Asian rivers, the TP is covered by widespread coniferous forests, which has great potential for dendrochronology research (Peng et al ., 2019; Duan et al ., 2020). During the past decade, some researchers have established many climate‐sensitive tree‐ring chronologies in the river basins of the TP, which have revealed distinct or extensive historical environmental changes (e.g., He et al ., 2012; Lv and Zhang, 2013; Wang et al ., 2014b; Yang et al ., 2014; Gou et al ., 2015; Hochreuther et al ., 2015; Jiang et al ., 2017; Sun et al ., 2018; Chen et al ., 2018; Huang et al ., 2019; Chen et al ., 2019b; 2020). However, there is still a lack of instrumental precipitation data in many river source areas of the TP, and more tree‐ring chronologies are needed to interpret the past hydroclimate variability.…”

Section: Introductionmentioning

confidence: 99%

Reconstructed precipitation in the Lohit River basin, southern Tibetan Plateau since 1720 CE and its weak linkages with monsoon‐season Brahmaputra discharge

Yue

Zhao

Chen

et al. 2021

Intl Journal of Climatology

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High Asian glaciers and precipitation have directly or indirectly influenced the freshwater supply of billions of people and natural ecosystems in surrounding areas. To better understand the hydroclimatic changes in the High Asian transboundary river basins in the context of global warming, more precipitation‐sensitive proxy data are needed. In this paper, we used the tree‐ring cores of Pinus densata and Picea brachytyla from the southern Tibetan Plateau (TP) to establish a tree‐ring‐width composite chronology and estimate hydrological annual (September–August) precipitation (r2 = 47.0%, p < 0.01) for the Lohit River basin from 1720 to 2019. Our reconstructed precipitation was closely linked with the glacier mass balance of Shishapangma peak, which may provide us with some evidence for glacier fluctuations in the southern TP. Our precipitation reconstruction successfully captured recent dry trends and generally agreed with other tree‐ring‐based precipitation reconstructions from nearby regions. In addition, reconstructed precipitation variations were inconsistent with recorded monsoon‐season Brahmaputra discharge.

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500-year tree-ring reconstruction of Salween River streamflow related to the history of water supply in Southeast Asia

Cited by 29 publications

References 84 publications

Seven centuries of reconstructed Brahmaputra River discharge demonstrate underestimated high discharge and flood hazard frequency

Seven centuries of reconstructed Brahmaputra River discharge demonstrate underestimated high discharge and flood hazard frequency

A 479-Year Early Summer Temperature Reconstruction Based on Tree-Ring in the Southeastern Tibetan Plateau, China

Reconstructed precipitation in the Lohit River basin, southern Tibetan Plateau since 1720 CE and its weak linkages with monsoon‐season Brahmaputra discharge

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