On the role of resolution and topography in the simulation of East Asia precipitation

Gao, Xuejie; Xu, Ying; Zhao, Zongci; Pal, Jeremy S.; Giorgi, Filippo

doi:10.1007/s00704-005-0214-4

Cited by 283 publications

(200 citation statements)

References 23 publications

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“…These deficiencies are particularly apparent over the East Asia region because of this region's complex topography and unique weather and climate systems. High-resolution regional climate models Corresponding author: SHI Ying, shiying@cma.gov.cn (RCMs) can better meet these needs (Gao et al, 2001(Gao et al, , 2006.…”

Section: Introductionmentioning

confidence: 99%

Projected Changes in Köppen Climate Types in the 21st Century over China

Shi

Gao

Jia

2012

Atmospheric and Oceanic Science Letters

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The results show that RegCM3 reproduces the present-day distribution of the Köppen climate types well. Significant changes of the types are found in the future over China, following the simulated warming and precipitation changes. In southern China, the change is characterized by the replacement of subtropical humid (Cr) by subtropical winter-dry (Cw). A pronounced decrease of the cold climate types is found over China, e.g., tundra (Ft) over the Tibetan Plateau and sub-arctic continental (Ec) over northeast China. The changes are usually greater in the end compared with the middle of the 21st century.

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Section: Introductionmentioning

confidence: 99%

Projected Changes in Köppen Climate Types in the 21st Century over China

Shi

Gao

Jia

2012

Atmospheric and Oceanic Science Letters

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“…2). Model resolution can have an important impact on the simulation of the EASM (Kusunki et al 2006;Gao et al 2006;Boo et al 2011) due to the spatial scale of the Meiyu Front. However, the bias over the Maritime Continent appears to be the dominant error in this coupled model (Fig.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Natural variability of summer rainfall over China in HadCM3

2013

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Summer rainfall over China has shown decadal variability in the past half century, which has resulted in major north-south shifts in rainfall with important implications for flooding and water resource management. This study has demonstrated how multi-century climate model simulations can be used to explore interdecadal natural variability in the climate system in order to address important questions around recent changes in Chinese summer rainfall, and whether or not anthropogenic climate change is playing a role. Using a 1,000-year simulation of HadCM3 with constant pre-industrial external forcing, the dominant modes of total and interdecadal natural variability in Chinese summer rainfall have been analysed. It has been shown that these modes are comparable in magnitude and in temporal and spatial characteristics to those observed in the latter part of the twentieth century. However, despite 1,000 years of model simulation it has not been possible to demonstrate that these modes are related to similar variations in the global circulation and surface temperature forcing occurring during the latter half of the twentieth century. This may be in part due to model biases. Consequently, recent changes in the spatial distribution of Chinese summer rainfall cannot be attributed solely to natural variability, nor has it been possible to eliminate the likelihood that anthropogenic climate change has been the driving factor. It is more likely that both play a role.

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“…As many studies showed, the improvement of the horizontal resolution of climate models is necessary to improve the simulation of East Asian climate [16][17][18]. The improvement of the resolution and other improvements in CMIP5 models may cause appreciably different results in comparison with CMIP3 models.…”

Section: Methodsmentioning

confidence: 99%

Projected change in the relationship between East Asian summer rainfall and upper-tropospheric westerly jet

Dai

2012

Chin. Sci. Bull.

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The authors analyzed the interannual variability in summer precipitation and the East Asian upper-tropospheric jet (EAJ) over East Asia under the Historical and Representative Concentration Pathways Scenarios (RCPs, including RCP4.5 and RCP8.5), using outputs of 17 Coupled Model Intercomparison Project phase 5 (CMIP5) coupled models. The analyzed results indicate that the models can reasonably reproduce relatively stronger interannual variability in both East Asian summer rainfall (EASR) and EAJ. These models can also capture the relationship between the rainfall anomaly along the East Asian rain belt and meridional displacement of the EAJ. Projected results suggest that the interannual variabilities in precipitation along the East Asian rain belt and in the EAJ are enhanced under the scenarios RCP4.5 and RCP8.5 in the 21st century, which is consistent with the previous studies. Furthermore, it is found that the relationship between the East Asian rainfall and the meridional displacement of the EAJ is projected to be stronger in the 21st century under the global warming scenarios, although there are appreciable discrepancies among the models. East Asian summer monsoon has an important social and economic impact in eastern China, the Korean Peninsula and the southern and central Japan. Its variability causes serious floods and droughts, which are the most natural disasters in East Asia, and brings about great damages in this region. The interannual variability in East Asian summer rainfall (EASR) is closely related to the frequency of floods and droughts. Therefore, the interannual variability in rainfall can be approximately used as an important index to measure the possible changes in the frequency of floods and droughts under global warming scenarios. Many projected results suggested that East Asian summer precipitation will increase in the context of global warming [1][2][3][4][5]. Some other studies indicated that the interannual variability in EASR will be enhanced in the future [6,7], corresponding to the increase of precipitation. On the other hand, Lu and Fu [7] showed that the interanuual variability in EASR is intensified much more remarkably in comparison with summer precipitation itself in East Asia under the global warming scenarios, implying more frequent occurrence of droughts and floods in the future.The EASR is closely related to the East Asian uppertropospheric westerly jet (EAJ). As an important component of the atmospheric circulations at the upper troposphere and low stratosphere in the mid latitudes, the EAJ exhibits a unique feature [8,9], and variations in both the location and intensity of the EAJ play a crucial role in influencing weather and climate in East Asia [10][11][12]. On the interannual timescale, the meridional displacement of the EAJ is the most prominent feature in summer [13] and it is intimately related to the EASR. A southward (northward) displaced EAJ is associated with increased (decreased) EASR

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On the role of resolution and topography in the simulation of East Asia precipitation

Cited by 283 publications

References 23 publications

Projected Changes in Köppen Climate Types in the 21st Century over China

Projected Changes in Köppen Climate Types in the 21st Century over China

Natural variability of summer rainfall over China in HadCM3

Projected change in the relationship between East Asian summer rainfall and upper-tropospheric westerly jet

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