Enhanced climatic warming in the Tibetan Plateau due to doubling CO2: a model study

Chen, B.; Chao, Winston C.; Liu, X.

doi:10.1007/s00382-003-0308-6

Cited by 66 publications

(97 citation statements)

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“…Most probably, there are two main reasons accounting for the surface warming in the TP. One is that the increasing anthropogenic greenhouse gases emissions contribute to the recent warming in the TP , and a model study also testifies that enhanced climatic warming in the TP due to doubling carbon dioxide [Chen et al, 2003]. The other is the change of cloud amount.…”

Section: Discussionmentioning

confidence: 94%

“…Liu and Chen, 2000;Niu et al, 2004] showed a significant warming in the TP during the last half century, in phase with the global trends derived from the increasing anthropogenic greenhouse gases emissions. The TP region is expected to be one of the most seriously impacted areas in the world by global warming effects [Chen et al, 2003;. However, there have been few studies in temperature and precipitation extremes in the TP, primarily owing to the lack of easily available data collection for the region.…”

Section: Introductionmentioning

confidence: 99%

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Changes in daily climate extremes in the eastern and central Tibetan Plateau during 1961–2005

et al. 2008

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[1] Changes in indices of climate extremes are analyzed on the basis of daily maximum and minimum surface air temperature and precipitation at 71 meteorological stations with elevation above 2000 m above sea level in the eastern and central Tibetan Plateau (TP) during . Twelve indices of extreme temperature and nine indices of extreme precipitation are examined. Temperature extremes show patterns consistent with warming during the studied period, with a large proportion of stations showing statistically significant trends for all temperature indices. Stations in the northwestern, southwestern, and southeastern TP have larger trend magnitudes. The regional occurrence of extreme cold days and nights has decreased by À0.85 and À2.38 d/decade, respectively. Over the same period, the occurrence of extreme warm days and nights has increased by 1.26 and 2.54 d/decade, respectively. The number of frost days and ice days shows statistically significant decreasing at the rate of À4.32 and À2.46 d/decade, respectively. The length of growing season has statistically increased by 4.25 d/decade. The diurnal temperature range exhibits a statistically decreasing trend at a rate of À0.20°C per decade. The extreme temperature indices also show statistically significant increasing trends, with larger values for the index describing variations in the lowest minimum temperature. In general, warming trends in minimum temperature indices are of greater magnitude than those for maximum temperature. Most precipitation indices exhibit increasing trends in the southern and northern TP and show decreasing trends in the central TP. On average, regional annual total precipitation, heavy precipitation days, maximum 1-day precipitation, average wet days precipitation, and total precipitation on extreme wet days show nonsignificant increases. Decreasing trends are found for maximum 5-day precipitation, consecutive wet days, and consecutive dry days, but only the last is statistically significant.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Changes in daily climate extremes in the eastern and central Tibetan Plateau during 1961–2005

et al. 2008

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“…These increases in ASR are largely associated with decreases in snow cover. Previous modeling studies have also suggested that snow-albedo feedback is one of the primary factors in causing an EDW in the high mountain regions (Chen et al 2003;Giorgi et al 1997). Observed increases in precipitation (Xu et al 2007) and snowdepth ) during spring suggest that snow cover over the plateau might not be significantly affected during spring in the latter half of the twentieth century.…”

Section: Discussionmentioning

confidence: 96%

Using a global climate model to evaluate the influences of water vapor, snow cover and atmospheric aerosol on warming in the Tibetan Plateau during the twenty-first century

et al. 2009

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We examine trends in climate variables and their interrelationships over the Tibetan Plateau using global climate model simulations to elucidate the mechanisms for the pattern of warming observed over the plateau during the latter half of the twentieth century and to investigate the warming trend during the twenty-first century under the SRES A1B scenario. Our analysis suggests a 4°C warming over the plateau between 1950 and 2100. The largest warming rates occur during winter and spring. For the 1961-2000 period, the simulated warming is similar to the observed trend over the plateau. Moreover, the largest warming occurs at the highest elevation sites between 1950 and 2100. We find that increases in (1) downward longwave radiation (DLR) influenced by increases in surface specific humidity (q), and (2) absorbed solar radiation (ASR) influenced by decreases in snow cover extent are, in part, the reason for a large warming trend over the plateau, particularly during winter and spring. Furthermore, elevation-based increases in DLR (influenced by q) and ASR (influenced by snow cover and atmospheric aerosols) appear to affect the elevation dependent warming trend simulated in the model.

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“…Precipitation might also increase in most parts of China under a scenario with a doubling of CO 2 concentration (2 9 CO 2 ) Chen et al 2003a). Regional climate-ecosystem models showed that, generally, China tends to be warmer and wetter under doubled CO 2 except for inland areas of northern and northwestern China, which become warmer and drier .…”

Section: Future Changesmentioning

confidence: 99%

Impacts of climate change on Chinese ecosystems: key vulnerable regions and potential thresholds

2010

Reg Environ Change

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China is a key vulnerable region of climate change in the world. Climate warming and general increase in precipitation with strong temporal and spatial variations have happened in China during the past century. Such changes in climate associated with the human disturbances have influenced natural ecosystems of China, leading to the advanced plant phenology in spring, lengthened growing season of vegetation, modified composition and geographical pattern of vegetation, especially in ecotone and tree-lines, and the increases in vegetation cover, vegetation activity and net primary productivity. Increases in temperature, changes in precipitation regime and CO 2 concentration enrichment will happen in the future in China according to climate model simulations. The projected climate scenarios (associated with land use changes again) will significantly influence Chinese ecosystems, resulting in a northward shift of all forests, disappearance of boreal forest from northeastern China, new tropical forests and woodlands move into the tropics, an eastward shift of grasslands (expansion) and deserts (shrinkage), a reduction in alpine vegetation and an increase in net primary productivity of most vegetation types. Ecosystems in northern and western parts of China are more vulnerable to climate changes than those in eastern China, while ecosystems in the east are more vulnerable to land use changes other than climate changes. Such assessment could be helpful to address the ultimate objective of the United Nations Framework Convention on Climate Change (UNFCCC Article 2).

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Enhanced climatic warming in the Tibetan Plateau due to doubling CO2: a model study

Cited by 66 publications

References 0 publications

Changes in daily climate extremes in the eastern and central Tibetan Plateau during 1961–2005

Changes in daily climate extremes in the eastern and central Tibetan Plateau during 1961–2005

Using a global climate model to evaluate the influences of water vapor, snow cover and atmospheric aerosol on warming in the Tibetan Plateau during the twenty-first century

Impacts of climate change on Chinese ecosystems: key vulnerable regions and potential thresholds

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