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| 1 | Recent temperature increase recorded in an ice core in the source region of Yangtze River显示文摘Interests on climate change in the source region of Yangtze River have been raised since it is a region with the greatest warming over the Tibetan Plateau (TP). A 70-year history of precipitation δ^(18)O has been recovered using an ice core record retrieved in a plat portion of the firn area in the Guoqu Glacier (33°34′37.8″N, 91°10′35.3″E, 5720 m a.s.l.), Mt. Geladaindong (the source region of Yangtze River), in November, 2005. By using a significant positive relationship between ice core δ^(18)O record and summer air temperature (July to September) from the nearby meteorological stations, a history of summer air temperature has been reconstructed for the last 70 years. Summer temperature was relatively low in 1940s and high in 1950s to the middle of 1960s. The lowest temperature occurred in the middle of 1970s. Temperature was low in 1980s and dramatically increased since 1990s, keeping the trend to the begin-ning of the 21st century. The warming rate recorded in the ice core with 0.5℃/10 a since 1970s is much higher that that in the central TP and the Northern Hemisphere (NH), and it becomes 1.1℃/10 a since 1990s which is also higher than these from the central TP and the NH, reflecting an accelerated warm-ing and a more sensitive response to global warming in the high elevation region. | KANG ShiChang ZHANG YongJun QIN DaHe REN JiaWen ZHANG QiangGong Bjorn GRIGHOLM Paul A. MAYEWSKI | 2007 | Chinese Science Bulletin2007，52，6： | 27 |
| 2 | 近200a来珠穆朗玛峰北坡远东绒布冰芯气候记录显示文摘1997年 5月中美联合珠穆朗玛峰地区绒布冰川考察期间,在远东绒布冰川海拔 6 500 m的北 支冰流粒雪盆内钻取到一支41m长冰芯.通过数年层法并根据β活化度的参照年(1954年和 1963 年),对远东绒布冰芯实施定年,冰芯底部为 1814年,冰芯年平均净积累量为 224 mm(冰当 量).根据远东绒布冰芯 (δ18O的变化,重建了珠穆朗玛峰北坡地区近 200 a气候变化,发现有 5次冷 期和5次暖期,且总趋势为变暖,这与本世纪北半球气候变暖的趋势相一致.远东绒布冰芯气候记 录同古里雅冰芯比较,两者的冷暖波动较为一致,说明青藏高原西北部和南部地区的气候变化具有 共性.但是,远东绒布冰芯中δ18O的变化在短时间尺度上与降水量变化存在某些反相关性,这种关 系并未影响到δ18O反映气温的长期变化趋势. | 康世昌 秦大河 Paul A. Mayewski Cameron P. Wake 任贾文 | 2000 | 冰川冻土2000，22，3： | 17 |
| 3 | Climatic significance of d^(18)O records from an 80.36 m ice core in the East Rongbuk Glacier,Mount Qomolangma(Everest)显示文摘The δ18O variations in an 80.36 m ice core retrieved in the accumulation zone of the East Rongbuk Glacier, Mount Qomolangma (Everest), is not consistent with changes of air temperature from both southern and northern slopes of Himalayas, as well as these of the temperature anomalies over the Northern Hemisphere. The negative relationship between the δ18O and the net accumulation records of the ice core suggests the 'amount effect' of summer precipitation on the δ18O values in the region. Therefore, the δ18O records of the East Rongbuk ice core should be a proxy of Indian Summer Monsoon intensity, which shows lower δ18O values during strong monsoon phases and higher values during weak phases. | Paul A. Mayewski | 2005 | Science China Earth Sciences2005，48，2： | 4 |
| 4 | Influencing domain of peripheral sources in the urban heavy pollution process of Beijing显示文摘The effect of city’s peripheral pollution sources is one of the key issues urgent to be solved in the decision-making of Beijing’s environmental pollution control. This paper comprehensively analyses the surface observations, and the satellite remote sensing data of Moderate Resolution Imaging Spectroradiometer (MODIS) and Total Ozone Mapping Spectrometer (TOMS) during the Beijing City Atmospheric Pollution Experiment (BECAPEX) from January to March, 2001, presents an 'upstream' wind field resultant vector method for tracing peripheral pollution sources, and finds that the features of the urban heavy pollution processes of Beijing are significantly correlated with the impact of the emission sources of southern peripheral cities, and the pollutants transferred northwards from distant upstream sources are retarded by the U-shaped 'Valley' topography in Beijing’s periphery. The two factors are responsible for the formation of the S-N zonal influencing domain of pollutants from the southern peripheral areas to Beijing. The paper also comprehensively analyses the features of flow field in the heavy pollution process in the Beijing region, and compares the heavy pollution process with samples of good air-quality days from January to March, 2001. The experiment of Hybrid Single-Particle Lagrangian Integrated Trajectory model (HYSPLIT-4) further reveals the diffusion trajectory of pollutants of the cities in Hebei and Shandong provinces and Tianjin city in the heavy pollution process of Beijing, and the simulations of the Regional Atmosphere Model System (RAMS) confirm the possible contribution of peripheral sources to the exceptionally heavy pollution process of the urban area of Beijing, thus revealing that the input of pollutants from southern peripheral cities is one of the important factors responsible for aggravating urban heavy pollution processes. | KANG Shichang Paul A. Mayewski | 2005 | Science China Earth Sciences2005，48，4： | 3 |
| 5 | Changes in annual accumulation retrieved from Geladaindong ice core and its relationship to atmospheric circulation over the Tibetan Plateau显示文摘Annual accumulation records covering 1935 to 2004 were reconstructed using Geladaindong ice core in the source of Yangtze River. A significant positive correlation between annual accumulation and precipitation from nearby meteorological stations was found, suggesting ice core accumulation could be taken as a precipitation proxy in the region. In the past 70 years, precipitation in the Geladaindong region was low from 1930s to early 1960s, and the lowest value occurred in the later 1950s. Since 1960s, precipitation increased dramatically and reached the maximum around 1980s, then decreased slightly in 1990s. By using Mann-Kendall rank statistical test method, a change point for precipitation was de- termined in 1967. Analysis of the atmospheric circulation over the Tibetan Plateau suggested that, compared with the southwest wind during the low precipitation period (before 1967), it extended about 2 latitudes northward during high precipitation period (after 1967). Moreover, during the high precipita- tion, the trough over the Bal Karshi Lake was also enhanced, and both the meridional wind and vapor transporting displayed a remarkable aggrandizement. | ZHANG YongJun KANG ShiChang QIN DaHe GRIGHOLM Bjorn MAYEWSKI Paul A. | 2007 | Chinese Science Bulletin2007，52，23： | 2 |
| 6 | Spatial and seasonal variations of elemental composition in Mt. Everest (Qomolangma) snow/firn显示文摘 | Shichang Kang Qianggong Zhang Susan Kaspari Dahe Qin Zhiyuan Cong Jiawen Ren Paul A. Mayewski | 2007 | Atmospheric Environment2007，，34： | 1 |
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