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18篇 您的检索式:作者名="WenShou WEI"
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1Summer atmospheric boundary layer structure in the hinterland of Taklimakan Desert, China显示文摘Understanding the characteristics of the structure of desert atmospheric boundary layer and its land surface process is of great importance to the simulations of regional weather and climate.To investigate the atmospheric boundary layer structure and its forming mechanism of Taklimakan Desert,and to improve the accuracy and precision of regional weather and climate simulations,we carried out a GPS radiosonde observation experiment in the hinterland of Taklimakan Desert from 25 June to 3 July,2015.Utilizing the densely observed sounding data,we analyzed the vertical structures of daytime convective boundary layer and nighttime stable boundary layer in summer over this region,and also discussed the impacts of sand-dust and precipitation events on the desert atmospheric boundary layer structure.In summer,the convective boundary layer in the hinterland of Taklimakan Desert developed profoundly and its maximum height could achieve 4,000 m;the stable boundary layer at nighttime was about 400–800-m thick and the residual mixing layer above it could achieve a thickness over 3,000 m.Sand-dust weather would damage the structures of nighttime stable boundary layer and daytime convective boundary layer,and the dust particle swarm can weak the solar radiation absorbed by the ground surface and further restrain the strong development of convective boundary layer in the daytime.Severe convective precipitation process can change the heat from the ground surface to the atmosphere in a very short time,and similarly can damage the structure of desert atmospheric boundary layer remarkably.Moreover,the height of atmospheric boundary layer was very low when raining.Our study verified the phenomenon that the atmospheric boundary layer with supernormal thickness exists over Taklimakan Desert in summer,which could provide a reference and scientific bases for the regional numerical models to better represent the desert atmospheric boundary layer structure.WANG Minzhong WEI Wenshou HE Qing YANG Yuhui FAN Lei ZHANG Jiantao 2016Journal of Arid Land2016,8,6:17
2Temporal and spatial variation of atmospheric water vapor in the Taklimakan Desert and its surrounding areas显示文摘The study of the temporal and spatial variation of atmospheric water vapor has the important significance to show the response to climate change in the Taklimakan Desert. The series of monthly atmospheric water vapor from 1961 to 1998 are reconstructed using the observation data including the precipitation, ground water vapor pressure data over the period of 1961 to 2006 from 27 observation stations in its surrounding areas and meteorological data from the Tazhong station during 1999-2006. Then the relationship between atmospheric water vapor and ground vapor pressure is calculated and validated using the observation data for the period of 1976 to 2006 from 5 sounding stations (Hotan, Kuqa, Ruoqiang, Kashgar, and Minfeng). The temporal and spatial variation of atmospheric water vapor in the Taklimakan Desert and its surrounding areas is studied and then its distribution is generated. Results show that high value zone of atmospheric water vapor is mainly distributed in the northern Taklimakan Desert and the oasis-marginal belt of western desert and the value ranges from 14 to 15 mm. The low value center of atmospheric water vapor is in the hinterland of the desert and the value is only 7―8 mm. The annual variations of atmospheric water vapor show generally the increasing trend. How- ever, the variation of atmospheric water vapor in the surrounding areas and the hinterland of the desert is insignificant during 1961―1986. The atmospheric water vapor changes abruptly after 1986 and increases clearly in the two regions. The variation trend accords with that of the precipitation’s increasing significantly in southern Xinjiang for the recent 50 years. There is great error between the NCEP/NCAR reanalysis data of atmospheric water vapor and real data in theTaklimakan Desert.Qin Yang WenShou Wei Jun Li 2008Chinese Science Bulletin2008,53,S2:6
3Analyses of temperature and humidity profiles and heat balance of the surface boundary-layer in the hinterland of the Taklimakan Desert显示文摘The daily variation regularities of micro-meteorological features, such as the surface layer temperature and humidity profiles of the inner desert in summer, the temperature of sand bed, the radiation of the earth's surface and the heat balance, were analyzed by combination method and logarithm regression according to the data obtained from the Atmospheric Environmental Observation Station of Taklimakan Desert in July―August of 2006 and 2007. It has been shown that temperature inversion occurred near the surface layer at night in summer, the temperature increased with the height within a certain altitude range, and the reverse was true during the daytime. The ground surface radiation balance of the Taklimakan Desert was mainly positive; other radiation components (the global radiation, the reflective radiation, the ground upward long wave radiation and the net radiation) exhibited daily variation char- acteristics evidently and showed normal diurnal cycle, except for the downward atmospheric long-wave radiation. The heat exchange of the surface layer of the desert was dominated by turbulence sensible heat, and only a small portion of heat was transferred to the atmospheric surface layer in the form of latent heat. The surface sensible heat and latent heat changed with the increase and decrease of sun elevation angle, with maximum of the latent heat appearing in wee hours and the peak value of the sensible heat appearing at noon. Observation and analysis showed that heating effect of the underlying surface of the desert was great on the aerosphere; the surface was a high heat source during the day and became a weak cold source at night.WEI WenShou WANG MinZhong HE Qing LEI JiaQiang ALI Mamtimin 2008Chinese Science Bulletin2008,53,S2:4
4Spatial and temporal temperature variations in Xinjiang,China during 1961-2008显示文摘This study examines spatial and temporal changes in 16 extreme temperature indices at 37 weather stations in Xinjiang and their associations with changes in climate means during 1961-2008.Linear regression analyses reveal that significant increasing trends in temperature were observed over Xinjiang,with the rate of 0.13 °C/decade,0.24 °C/decade,and 0.52 °C/decade for annual mean temperature,annual maximum,and minimum temperature,respectively.Annual frequency of cool nights(days) has decreased by 2.45 days/decade(0.86 days/decade),whereas the frequency of warm nights(days) has increased by 4.85 days/decade(1.62 days/decade).Seasonally,the frequencies of summer warm nights and days are changing more rapidly than the corresponding frequencies for cool nights and days.However,normalization of the extreme and mean series shows that the rate of changes in extreme temperature events are generally less than those of mean temperatures,except for winter cold nights which are changing as rapidly as the winter mean minimum temperatures.These results indicate that there have been seasonally and diurnally asymmetric changes in extreme temperature events relative to recent increases in temperature means in Xinjiang.YanWei Zhang WenShou Wei FengQing Jiang MingZhe Liu WenWen Wang Lei Bai KaiFeng Li Rui Shao ZhiWen Dong 2012Research in Cold and Arid Regions2012,4,1:4
5Variations of Snow Temperature and their Influence on Snow Cover Physical Parameters in the Western Tianshan Mountains,China显示文摘This article discussed about snow temperature variations and their impact on snow cover parameters.Automatic temperature recorders were used to sample at 10-minute intervals at the Tianshan Station for Snow-cover and Avalanche Research,Chinese Academy of Sciences.10-layer snow temperature and the snow cover parameters were measured by the snow property analyzer (Snow Fork) in its Stable period,Interim period and Snow melting period.Results indicate that the amplitude of the diurnal fluctuation in the temperature during Snow melting period is 1.62 times greater than that during Stable period.Time up to the peak temperature at the snow surface lags behind the peak solar radiation by more than 2.5 hours,and lags behind the peak atmospheric temperature by more than 0.2 hours during all three periods.The optimal fitted function of snow temperature profile becomes more complicated from Stable period to Snow melting period.22 h temperature profiles in Stable period are the optimal fitted by cubic polynomial equation.In Interim period and Snow melting period,temperature profiles are optimal fitted by exponential equation between sunset and sunrise,and by Fourier function when solar radiation is strong.The vertical gradient in the snow temperature reaches its maximum value at the snow surface for three periods.The peak of this maximum value occurs during Stable period,and is 4.46 times greater than during Interim period.The absolute value of temperature gradient is lower than 0.1°C cm-1 for 30 cm beneath snow surface.Snow temperature and temperature gradient in Stable period~Interim period indirectly cause increase (decrease) of snow density mainly by increasing (decreasing) permittivity.While it dramatically increases its water content to change its permittivity and snow density in Snow melting period.CHEN Xia WEI WenShou LIU MingZhe GU GuangQin 2011Journal of Mountain Science2011,8,6:3
6Aerosol optical absorption by dust and black carbon in Taklimakan Desert,during no-dust and dust-storm conditions显示文摘Aerosol absorption coefficient ap involves the additive contribution of both black carbon aerosol(BC)and dust aerosol.The linear statistical regression analysis approach introduced by Fialho et al.(2005)is used to estimate the absorption exponents of BC and dust aerosol absorption coefficients,and further to separate the contributions of these two types of aerosols from the total light absorption coefficient measured in the hinterland of Taklimakan Desert in the spring of 2006.Absorption coefficients are measured by means of a 7-wavelength Aethalometer from 1 March to 31 May and from 1 November to 28 December,2006. The absorption exponent of BC absorption coefficient α is estimated as(-0.95±0.002)under background weather(supposing the observed absorption coefficient is due only to BC);the estimated absorption exponent of dust aerosol absorption coefficient β during the 6 dust storm periods(strong dust storm)is (?2.55±0.009).Decoupling analysis of the measured light absorption coefficients demonstrates that,on average,the light absorptions caused by dust aerosol and BC make up about 50.5%and 49.5%respectively of the total light absorption at 520 nm;during dust weather process periods(dust storm,floating dust, blowing dust),the contribution of dust aerosol to absorption extinction is 60.6%on average;in the hinterland of desert in spring,dust aerosol is also the major contributor to the total aerosol light absorption, more than that of black carbon aerosol.Hui Lu Wenshou Wei Mingzhe Liu Weidong Gao Xi Han 2012Particuology2012,10,4:3
7Assessing changes in extreme precipitation over Xinjiang using regional climate model of PRECIS显示文摘In this paper, an analysis, with the simulation of PRECIS(Providing Regional Climate for Impact Studies), was made for future precipitation extremes, under SRES(Special Report on Emission Scenarios) A2 and B2 in IPCC(Intergovernmental Panel on Climate Change) AR4. The precipitation extremes were calculated and analyzed by ETCCDI(Climate Change Detection and Indices). The results show that:(1) In Present Scenario(1961–1900), PRECIS could capture the spatial pattern of precipitation in Xinjiang.(2) The simulated annual precipitation and seasonal precipitation in Xinjiang had a significantly positive trend and its variability had been deeply impacted by terrain. There was a strong association between increasing trend and the extreme precipitation's increase in frequency and intensity during 1961–2008. Under SRES A2 and B2, extreme precipitation indicated an increasing tendency at the end of the 21 st century. The extreme summer precipitation increased prominently in a year.(3) PRECIS's simulation under SRES A2 and B2 indicated increased frequency of heavy precipitation events and also enhancement in their intensity towards the end of the 21 st century. Both A2 and B2 scenarios show similar patterns of projected changes in precipitation extremes towards the end of the 21 st century. However, the magnitude of changes in B2 scenario was on the lower side. In case of extreme precipitation, variation between models can exceed both internal variability and variability of different SRES.YanWei Zhang QuanSheng Ge FengQing Jiang JingYun Zheng WenShou Wei 2015Research in Cold and Arid Regions2015,7,2:2
8Application of wind profiler data to rainfall analyses in Tazhong Oilfield region,Xinjiang,China显示文摘To improve the level of meteorological service for the Oilfield region in the Taklimakan Desert,the Urumqi Institute of Desert Meteorology of the China Meteorological Administration(CMA) conducted a detection experiment by means of wind profiling radar(WPR) in Tazhong Oilfield region of Xinjiang,China in July 2010.By using the wind profiler data obtained during the rainfall process on 27 July,this paper analyzed the wind field features and some related scientific issues of this weather event.The results indicated that:(1) wind profiler data had high temporal resolution and vertical spatial resolution,and could be used to analyze detailed vertical structures of rainfall processes and the characteristics of meso-scale systems.Before and after the rain event on 27 July,the wind field showed multi-layer vertical structures,having an obvious meso-scale wind shear line and three airflows from different directions,speeding up the motion of updraft convergence in the lower atmosphere.Besides,the wind directions before and after the rainfall changed inversely with increasing height.Before the rain,the winds blew clockwise,but after the onset of the rain,the wind directions became counterclockwise mainly;(2) the temperature advection derived from wind profiler data can reproduce the characteristics of low-level thermodynamic evolution in the process of rainfall,which is capable to reflect the variation trend of hydrostatic stability in the atmosphere.In the early stage of the precipitation on 27 July,the lower atmosphere was mainly affected by warm advection which had accumulated unstable energy for the rainfall event and was beneficial for the occurrence of updraft motion and precipitation;(3) the 'large-value zone' of the radar reflectivity factor Z was virtually consistent with the onset and end of the rainfall,the height for the formation of rain cloud particles,and precipitation intensity.The reflectivity factor Z during this event varied approximately in the range of 18-38 dBZ and the rain droplets formed mainly at the layer of 3,800-4,500 m.MinZhong WANG WenShou WEI Qing HE XinChun LIU ZhongJie ZHAO 2012Journal of Arid Land2012,4,4:1
9Tree‐ring‐based annual precipitation reconstruction for the H exi C orridor, NW C hina: consequences for climate history on and beyond the mid‐latitude A sian continent显示文摘Feng Chen Yujiang Yuan Wenshou Wei Ruibo Zhang Shulong Yu Huaming Shang Tongwen Zhang Li Qin Huiqing Wang Fahu Chen 2013Boreas2013,,4:1
10Application of wind-profiling radar data to the analysis of dust weather in the Taklimakan Desert显示文摘Minzhong Wang Wenshou Wei Zheng Ruan Qing He Runsheng Ge 2013Environmental Monitoring and Assessment2013,,6:1
11Change in Fresh Snow Density in Tianshan Mountains,China显示文摘The fresh snow density was observed with snow analyzer (Snow Fork) at Tianshan Station for Snowcover and Avalanche Research, Chinese Academy of Sciences from February 21 to March 5, 2009. Results show that fresh snow density increases from the 5th h to the 291st h after the snowfall, with an average rate of increase of 4.0×10-4 g/(cm3·h) (R2 = 0.943). Analysis shows that fresh snow density is negatively correlated with the compac-tion rate of fresh snow (R2 = -0.960). Inversely, it is positively correlated with fresh snow viscosity (R2 = 0.896). In relation to meteorological factors, ground temperature rising at a depth of 40 cm is the major driving factor of snow density increase. The temperature increase in fresh snow layer and the decrease in depth hoar layer have the most prominent impacts on the snow density increase in the afternoon. Principal component analysis shows that the de-terminant factors of fresh snow density change can be grouped into 3 types as follows: 1) dynamic factor contributes about 69.71% to fresh snow density change, with a significant effect from the 5th h to the 106th h after the snowfall; 2) exogenous energy factor contributes about 20.91% to it, with a significant effect at the 130th h; and c) endoge-nous energy factor contributes about 9.38% to it, with a significant effect at the 130th h and the 195th h.CHEN Xia WEI Wenshou LIU Mingzhe 2011Chinese Geographical Science2011,21,1:1
12Tree-ring response of subtropical tree species in southeast China on regional cli- mate and sea-surface temperature variations显示文摘CHEN Feng YUAN Yujiang WEI Wenshou 2015Trees2015,29,:1
13Application of wind-profiling radar data to the analysis of dust weather in the Taklimakan Desert显示文摘Minzhong Wang Wenshou Wei Zheng Ruan Qing He Runsheng Ge 2013Environmental Monitoring and Assessment2013,,6:1
14Some results of snow chemical surveys in the Kunnes River valley,East Tienshan mountains,China显示文摘Jiang Fengqing Zhu Cheng Wei Wenshou 2002Atmospheric Environment2002,36,:1
15A 602-year Reconstruction of July-June Streamflow in the Kuqa River, China, Reveals the Changing Hydrological Signals of the Tarim Basin显示文摘A regional tree-ring width chronology of Schrenk spruce(Picea schrenkiana) was used to determine the annual(previous July to current June) streamflow of the Kuqa River in Xinjiang, China, for the period of 1414–2015. A linear transformation of the tree-ring data accounted for 63.9% of the total variance when regressed against instrumental streamflow during 1957–2006. The model was validated by comparing the regression estimates against independent data. High streamflow periods with a streamflow above the 602-year mean occurred from 1430–1442, 1466–1492, 1557–1586, 1603–1615, 1687–1717, 1748–1767, 1795–1819, 1834–1856, 1888–1910 and 1989–2015. Low streamflow periods(streamflow below the mean) occurred from 1419–1429, 1443–1465, 1493–1556, 1587–1602, 1616–1686, 1720–1747, 1768–1794, 1820–1833, 1857–1887 and 1911–1988. The reconstruction compares well with the tree-ring-based streamflow series of the Tizinafu River from the Kunlun Mountains;both show well-known severe drought events. The streamflow reconstruction also shows highly synchronous upward trends since the 1980 s, suggesting that streamflow is related to Central Asian warming and humidification. Thus, the influences of the extremes and the persistence of low streamflows on local society may be considerable. Climatic changes in the watershed may be responsible for the change in the hydrologic regime of the Tarim Basin observed during the late twentieth century.SHANG Huaming CHEN Feng WEI Wenshou MAO Weiyi ZHANG Ruibo ZHANG Tongwen YU Shulong 2020Acta Geologica Sinica(English Edition)2020,94,3:0
16Advances in the Researches of the Middle and Upper Atmosphere in China in 2014-2016显示文摘In this report the research results by Chinese scientists in 2014—2016 are summarized.The focuses are placed on the researches of the middle and upper atmosphere,specifically the researches associated with ground-based observation capabihty development,dynamical processes,and properties of circulation and chemistry-climate coupling of the middle atmospheric layers.CHEN Zeyu XU Jiyao HU Xiong CHEN Hongbin CHEN Wen WEI Ke BIAN Jianchun TIAN Wenshou ZHANG Shaodong REN Rongcai DOU Xiankang 2016空间科学学报2016,36,5:0
17Climatic response of Pinus sylvestris var. mongolica tree-ring width and precipitation reconstruction for the northern Greater Higgnan Mountains, China, since 1720显示文摘August–June precipitation has been reconstructed back to AD 1720 for the northern Greater Higgnan Mountains, China, by use of Pinus sylvestris var. mongolica tree-ring width. The reconstruction explains the variance of 39% in observed precipitation from 1973 to 2008. Some extremely dry/wet signals in historical documents and other precipitation reconstructions in previous studies are precisely captured in our reconstruction. Wet periods occurred during the periods of 1730 to 1746, 1789 to 1812, 1844 to 1903, 1920 to 1930, 1942 to 1961, and 1985 to 1998; while periods of 1747 to 1788, 1813 to 1843, 1904 to 1919, 1931 to 1941, and 1962 to 1984 were relatively dry. Power spectral and wavelet analyses demonstrated the existence of significant 24-year, 12-year, and 2-year cycles of variability.TongWen Zhang YuJiang Yuan WenShou Wei RuiBo Zhang ShuLong Yu Feng Chen HuaMing Shang Li Qin ZiAng Fan 2014Research in Cold and Arid Regions2014,6,6:0
18The possible pivotal role of the eastward dust transport from Central Asia in the global temperature decrease显示文摘glacial-interglacialgyrations 的出现能与 Milankovitch 理论被解释,这通常被考虑。然而,在理论的一些问题的答案还当前没被导出。在从 CentralAsia 研究东方灰尘运输以后,我们发现了在东方灰尘运输和全球温度减少之间有积极反馈机制。这在北半球的 thehigh 纬度区域放大太阳的放射变化的效果,并且导致全球冰川的时代的出现。积极反馈机制在北半球的 thehigh 纬度区域以太阳的放射的减小开始。随后,全球温度减少,全球冰川的历元发生,在哪个枢轴的因素是从 CentralAsia 的东方灰尘运输。与积极反馈机制的理论,在 Milankovitch 理论的一些问题能被解决很好。LIU Mingzhe & WEI Wenshou Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China Graduate University of the Chinese Academy of Sciences, Beijing 100039, China Chemical Laboratory for Atmosphere, China Meteorological Administration, Beijing 100081, China Urumqi Desert Meteorology, China Meteorological Administration, Urumqi 830002, China 2006Chinese Science Bulletin2006,51,A01:0
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