Impacts of internal climate variability on meteorological drought changes in China

Wang, Ai Hui; Zeng, Xubin

doi:10.1080/16742834.2017.1379865

Cited by 10 publications

(16 citation statements)

References 31 publications

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“…Records from 2001 to 2015 were used to validate the satellite-based data. Data quality control, based on logical testing and comparison with adjacent stations has previously removed unreliable observations (Li et al, 2004;Wang and Zeng, 2018).…”

Section: Methodsmentioning

confidence: 99%

Satellite data reveal southwestern Tibetan plateau cooling since 2001 due to snow‐albedo feedback

Guo

Sun

Yang

et al. 2019

Intl Journal of Climatology

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Given the threats that climate change poses to solid water reservoirs on the Tibetan plateau (TP), there is significant interest in understanding spatial patterns of climate change and their causes. Weather station observations have been extensively examined, but are scarce, resulting in an incomplete understanding of climate change across the TP, particularly in the west. Using recent (2001–2015) satellite‐based data sets (2 m air temperature, land surface temperature, albedo and snow cover), this study reveals that mean annual 2 m air temperature in the southwestern TP has decreased by 0.15°C/decade in contrast to overall warming (+0.18°C/decade) on the rest of the TP. Up to 45% (74%) of the variance in the annual (spring) 2 m air temperature can be explained by simultaneous change in snow‐induced albedo in the southwestern TP. The free atmosphere column over this region and Northwest India is cooling, providing a favourable environment for the decrease in 2 m air temperature observed. Moreover, the anomalous water vapour transport into the southwestern TP is advantageous for increased snowfall and the associated decrease in 2 m air temperature. The implications of this anomalous cooling under global warming have yet to be fully considered, in particular for the futures of glaciers and snowpack over the Himalayan Mountains in the southwestern TP.

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Section: Methodsmentioning

confidence: 99%

Satellite data reveal southwestern Tibetan plateau cooling since 2001 due to snow‐albedo feedback

Guo

Sun

Yang

et al. 2019

Intl Journal of Climatology

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“…For the long-term trend, many studies have suggested that the summer precipitation over NEC has a decreasing trend (Qian & Lin, 2005;Zhai et al, 2005) while SAT presents an increasing trend (Feng et al, 2015) over the past half-century. Hence, previous studies have deeply investigated the features and causal factors of changes in summer precipitation and SAT over NEC on different timescales from the perspective of the internal climate system (Wang & Zeng, 2018).…”

Section: Introductionmentioning

confidence: 99%

A Detectable Anthropogenic Shift Toward Intensified Summer Hot Drought Events Over Northeastern China

Chen

Sun

et al. 2020

Earth and Space Science

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This study investigates the influence of external forcings on the various summer hot drought events (SHDEs) over northeastern China (NEC). SHDEs are represented by the probability-based index (PI), which considers precipitation and temperature anomalies. The results show that SHDEs over NEC increased from 1961 to 2005, and the experiments for historical forcing (ALL), increased greenhouse gases emission forcing (GHG), and anthropogenic forcing (ANT) can largely reproduce the spatial and temporal features of the trends of SHDEs over NEC. Based on the optimal fingerprinting method, the impact of increased anthropogenic activities can be detected at the 90% confidence level. In addition, the attributable changes of PI in response to GHG and ANT forcings resemble the observation, implying that the increasing trends of SHDEs over NEC are primarily attributed to the increased anthropogenic activity. Furthermore, the occurrence probability of SHDEs over NEC will be further increased under different Representative Concentration Pathways in the future. Additional strict control regulations on GHG emissions are thus suggested to mitigate its impact on regional climate changes.

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“…In recent years, numerous studies have addressed climate projections in East Asia for the end of the 21st century. Based on the Coupled Model Intercomparison Project phase 3 (CMIP3) and phase 5 (CMIP5) models and some other modelling results, many researchers have investigated the changes in the mean climate (Xu et al, 2009;Chen and Sun, 2013;Tian et al, 2015;Wu et al, 2016) and extremes (Jiang et al, 2012;Wang et al, 2012;Gao et al, 2018;Wang and Zeng, 2018;Zhou et al, 2018a). The annual mean SAT is projected to increase by 2.6 ± 0.8 C at the end of the 21st century, relative to 1986-2005, under the Representative Concentration Pathway (RCP) scenario RCP4.5 (Tian et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

More robust changes in the East Asian winter monsoon from 1.5 to 2.0°C global warming targets

Miao

Wang

Dong

2020

Intl Journal of Climatology

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This study investigates changes in the East Asian winter monsoon (EAWM) under 1.5 and 2.0°C global warming (1.5 and 2.0GW) targets using multi‐model results from the Coupled Model Intercomparison Project phase 5 (CMIP5). It is found that the surface air temperature increases over the Asian continent and Pacific, and the precipitation increases over the northern Asian continent in winter during the 1.5 and 2.0GW periods. For the 1.5GW period, large uncertainties can be found in the projection of EAWM system members (i.e., Siberian high, Aleutian low, low‐level winds over eastern Asia, East Asian trough [EAT] and East Asian jet stream [EAJS]). For the 2.0GW period, more than two‐thirds of the models show that the Siberian high, the EAT and the meridional shear of the EAJS are weakened, but the Aleutian low is intensified. In addition, the intensified Aleutian low enhances low‐level northwesterly wind along the coast of northeastern Asia. Compared to those in the 1.5GW period, the EAWM system members show more robust changes during the 2.0GW period, except for the low‐level winds at mid‐latitude eastern Asia. These conclusions are suitable for both the RCP4.5 and RCP8.5 scenarios.

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Impacts of internal climate variability on meteorological drought changes in China

Cited by 10 publications

References 31 publications

Satellite data reveal southwestern Tibetan plateau cooling since 2001 due to snow‐albedo feedback

Satellite data reveal southwestern Tibetan plateau cooling since 2001 due to snow‐albedo feedback

A Detectable Anthropogenic Shift Toward Intensified Summer Hot Drought Events Over Northeastern China

More robust changes in the East Asian winter monsoon from 1.5 to 2.0°C global warming targets

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