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Spatial distribution of 10m firn temperature in the Antarctic Ice Sheet

Science china Earth sciences 2011年第5期54卷 655-666页

作者： WANG YeTang1,3.& HOU ShuGui2,3.1 Shandong Marine Fisheries Research Institute,Yantai 264006,china 2 moe,key {3. for Coast and island development,school of geographic and oceanographic sciences,nanjing university,nanjing 210093.china 3.tate key {3. of Cryospheric Science,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of sciences,Lanzhou 73.000,china 1. Shandong Marine Fisheries Research Institute Yantai 264006 China3. State Key Laboratory of Cryospheric Science Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China2. MOE Key Laboratory for Coast and Island Development School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210093 China

A database of Antarctic 10 m firn temperature was constructed using available borehole temperature measurements with data quality control to extend knowledge of Antarctic climate. Slopes from a high-resolution digital elevation model and the main ice divide were used to delineate main drainage sectors across Antarctica. In each drainage sector, a quantitative relationship between temperature and latitude, longitude and altitude was established using available tim temperature data. Quantitative relationships incorporating other factors affecting Antarctic air temperature such as atmospheric circulation and small-scale to- pography were used to derive a 10-km resolution grid map of surface temperature. The resulting temperature patterns presented a reasonable depiction of both large and small-scale variations in Antarctic 10 m firn temperature. This map is useful for many spatial variation studies, Antarctic ice sheet models, and comparison with satellite-derived temperature data and outputs of atmospheric general circulation models.

关键词： Antarctica 10 m firn temperature spatial distribution

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Environmental archaeology of the Dachang region in the Daning Valley,the Three Gorges reservoir region of the Yangtze River,china

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Chinese Science Bulletin 2008年第S1期53卷 140-152页

作者： ZHANG Yun 1 &ZHU Cheng 2 1 State key laboratory of Vegetation and Environmental Change,Institute of Botany,Chinese Academy of sciences,Beijing 100093. {3. 2 school of geographic and oceanographic sciences,nanjing university,nanjing 210093.china 1. State key laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing 100093 China 2. school of geographic and oceanographic sciences Nanjing University Nanjing 210093 China

Environmental archaeology of archaeological sites on both sides of the Dachang section in the Daning River,the Three Gorges of the Yangtze River,shows that riverbed evolution has a great influence on the distribution of archaeological sites during the prehistorical and historical period,and it restricts human activity and the development of ancient *** investigation,dating data,paleocurrent analysis of 100 gravels on the riverbed and archaeological excavation reveal that the riverbed of the Dachang section developed in the Shuangyantang region during the early stage,after about 3. kaBP it shifted westward gradually and reached the present *** with the westward shift,the focus of ancient culture changed for several *** the Western Zhou Dynasty's period,the east riverbank of the Daning River was the main residential *** the Han Dynasty,along with the westward shift,the living space of ancient people was no longer confined to the east riverbank and the focus of culture moved *** the Zhangjiawan site became the main dwelling *** the late Han Dynasty, the villages were flooded and the ancients had to immigrate to a high *** of the Han and the Jin Dynasties outcropped on the flood plain of the east bank because their surface sediments were eroded by several flood events and the westward shift of the riverbed.

关键词： the Daning River environmental archaeology the Shuangyantang site the Zhangjiawan site tombs of the Han and the Jin Dynasties

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A new interpolation method for Antarctic surface temperature

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Progress in Natural Science:Materials International 2009年第12期19卷 1843-1849页

作者： Yetang Wang~(a,b),Shugui Hou~(b,c,*) a Monitoring Centre of Ocean Environment of Shandong Province,Yantai 264006,china b State key laboratory of Cryospheric Science,Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of {3.,Lanzhou 73.00,china c moe,key laboratory for Coast and island development,school of geographic and oceanographic sciences,nanjing university,nanjing 210093.china [a]Monitoring Centre of Ocean Environment of Shandong Province Yantai 264006 China [b]State key laboratory of Cryospheric Science Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 73000 China [c]moe Key Laboratory for Coast and Island Development School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210093 China

We propose a new methodology for the spatial interpolation of annual mean temperature into a regular grid with a geographic resolution of 0.01°for Antarctica by applying a recent compilation of the Antarctic temperature data.A multiple linear regression model of the dependence of temperature on some geographic parameters(i.e.,latitude,longitude,and elevation) is proposed empirically,and the kriging method is used to determine the spatial distribution of regional and local deviations from the temperature calculated from the multiple linear regression *** modeled value and residual grids are combined to derive a high-resolution map of surface air temperature. The performance of our new methodology is superior to a variety of benchmark methods(e.g.,inverse distance weighting,kriging, and spline methods) via cross-validation *** simulation resembles well with those distinct spatial features of surface temperature,such as the decrease in annual mean surface temperature with increasing latitude and the distance away from the coast line; and it also reveals the complex topographic effects on the spatial distribution of surface temperature.

关键词： Surface temperature DEM Antarctica

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Paddy Soil Stability and Mechanical Properties as Affected by Long-Term Application of Chemical Fertilizer and Animal Manure in Subtropical china

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Pedosphere 2007年第5期17卷 568-579页

作者： LI Jiang-Tao ZHANG Bin school of geographic and oceanographic sciences Nanjing University Nanjing 210093 （China） Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China）

Wet stability, penetration resistance （PR）, and tensile strength （TS） of paddy soils under a fertilization experiment for 22 years were determined to elucidate the function of soil organic matter in paddy soil stabilization. The treatments included no fertilization （CK）, normal chemical fertilization （NPK）, double the NPK application rates （2NPK）, and NPK mixed with organic manure （NPK＋OM）. Compared with CK, Fertilization increased soil organic carbon （SOC） and soil porosity. The results of soil aggregate fragmentation degree （SAFD） showed that fast wetting by water was the key fragmentation mechanism. Among the treatments, the NPK＋OM treatment had the largest size of water-stable aggregates and greatest normal mean weight diameter （NMWD）（P ≤ 0.05）, but the lowest PR and TS in both cultivated horizon （Ap） and plow pan. The CK and 2NPK treatments were measured with PR 〉 2.0 MPa and friability index 〈 0.20, respectively, in the Ap horizon, suggesting that the soils was mechanically unfavourable to root growth and tillage. In the plow pan, the fertilization treatments had greater TS and PR than in CK. TS and PR of the tested soil aggregates were negatively correlated to SOC content and soil porosity. This study suggested that chemical fertilization could cause deterioration of mechanical properties while application of organic manure could improve soil stability and mechanical properties.

关键词： soil aggregate stability chemical fertilization organic matter penetration resistance tensile strength

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Helium isotope investigation on magnetic reversal boundaries of loess-paleosol sequence at Luochuan, central Chinese Loess Plateau

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Chinese Science Bulletin 2007年第17期52卷 2407-2412页

作者： DU XueQing1,6, WANG YongHong2, REN JianGuo3. YE XianRen4 & LU HuaYu5,1 1 State key laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of sciences, Xi’an 710075, {3. 2 College of Marine Geosciences, Ocean university of {3., Qingdao 266003. {3. 3.National Natural Science Foundation of {3., Beijing 100085, {3. 4 Lanzhou Research Center for Petroleum and Natural Gas Resources, Institute of Geology and Geophysics, Chinese Academy of sciences, Lanzhou 73.000, {3. 5 key laboratory of Coast and island development, school of geographic and oceanographic sciences, nanjing university, nanjing 210093, {3. 6 Graduate university of Chinese Academy of sciences, Beijing 100049, {3. State key laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi''an 710075 China

Extraterrestrial particles have higher 3.e/4He ratios than those of terrestrial sediments ( > 100 Ra versus < 0.03.Ra, where Ra is the 3.e/4He ratio normalized to the atmospheric value of 1.4×10?6). The inter- planet... 详细信息

Extraterrestrial particles have higher 3.e/4He ratios than those of terrestrial sediments ( > 100 Ra versus 3.Ra, where Ra is the 3.e/4He ratio normalized to the atmospheric value of 1.4×10?6). The inter- planetary dust particles (IDPs), which are very rich in 3.e, continuously bombard the Earth and can accumulate in deposits. IDPs sedimentation rate changes can significantly influence 3.e concentration in the Earth surface sediments. Since IDPs are not easy to detect in terrestrial deposits, measuring helium isotopes is a helpful approach to examine changes in IDPs. Helium concentration and helium isotopic composition magnetic substances and the quartz particles were examined for helium concen- tration and helium isotopic ratio. Results show that the 3.e/4He ratio and the 3.e concentrations of the magnetic substances are clearly higher than those of the bulk samples and the quartz particles, and, the 3.e/4He ratio of the extracted magnetic substances is also higher than that of the average level of the Earth’s crust. The higher helium content in the magnetic fractions can be explained by an influx of IDPs.

关键词：中国黄土高原古土壤氦同位素行星际尘埃颗粒反方向磁化

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The application of geographic information technology to coastal geomorphology

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Acta Oceanologica Sinica 2009年第5期28卷 49-57页

作者： GUO Wei LI Shuheng ZHU Dakui school of Human Settlements and Civil Engineering Xi＇an Jiaotong University Xi＇an 710049 China Department of Computer sciences Xi＇an Jiaotong University Xi＇an 710049 China Department of Urban and Resources sciences Northwest University Xi＇an 710032 China Faculty of Environmental sciences University of Waterloo Waterloo N2L3G1 Canada key laboratory of Coast ＆ island {3. of Ministry of Education Nanjing University Nanjing 210093 China

With the development of modern oceanic observation technologies, coastal survey data have been experiencing a substantial growth. The integration management of the data from different disciplines, different sources and different formats has become a major research field in coastal geomorphology by using geographic Information System （GIS）. This paper puts forward a new methodology framework of GIS techniques in coastal ocean geomorphology, including data acquisition, process, analysis, and representation. It focuses on some major GIS techniques to study the land-ocean interaction mechanism, such as spatial analysis, submarine topography model and three-dimension （3.） visualization, and apply its result to coastal urban planning, harbor site selection and geomorphology environment about coral reef and islands on the continental shelf. The case studies cover the whole coastal ocean to serve the social community, economical development and diplomatic rights for decision-making all round in the coastal zone. The research shows clearly that the application of coastal multi-source geospatial platform has changed the traditional coastal geomorphology science dramatically from its research scope, fields and methods, however, as made clear in this paper, extracting accurate information from remote sensing data and GIS databases for coastal geomorphological applications is a nontrivial challenge that requires the combined knowledge and skills of information scientists and geomorphologists.

关键词： coastal geomorphology geographic information system (GIS) spatial analysis threedimensional visualization

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Sea level variations in the South china Sea inferred from satellite gravity,altimetry,and oceanographic data

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Science china Earth sciences 2012年第10期55卷 1696-1701页

作者： FENG Wei 1,2,ZHONG Min 1,3.& XU HouZe 1,3.1 State key laboratory of Geodesy and Earth’s Dynamics,Institute of Geodesy and Geophysics,Chinese Academy of sciences,Wuhan 43.077,{3. 2 Graduate university of Chinese Academy of sciences,Beijing 100049,{3. 3.Institute of Geophysics,Huazhong university of Science and Technology,Wuhan 43.074,{3. 1. State key laboratory of Geodesy and Earth’s Dynamics Institute of Geodesy and Geophysics Chinese Academy of Sciences Wuhan 430077 China2. Graduate University of Chinese Academy of Sciences Beijing 100049 China3. Institute of Geophysics Huazhong University of Science and Technology Wuhan 430074 China

Sea level variations(SLVs) can be divided into two major components:the steric SLV and the mass-induced *** two components of SLV in the South china Sea(SCS) are studied by using satellite altimetry,GRACE(Gravity Recovery and Climate Experiment) satellite gravity,and oceanographic data on annual and inter-annual *** the annual timescale,the geographic distribution of mass-induced SLV's amplitude jointly estimated from altimetry and the ECCO(Estimation of the Circulation and Climate of the Ocean) model agrees very well with that from *** observes obvious seasonal mass-induced SLV in the SCS with annual amplitude of 2.7±0.4 cm,which is consistent with the annual amplitude of 2.7±0.3.cm estimated from the steric-corrected *** the inter-annual timescales,the mean SLV in the SCS shows a large oscillation,which is mainly caused by the steric *** trend of mean SLV inferred from altimetry in the SCS is 5.5±0.7 mm/yr for the period of 1993.2009,which is significantly higher than the global sea level rise rate of 3.3.0.4 mm/yr in the same *** is no obvious trend signal in the mass-induced SLV detected from GRACE that indicates the water exchange between the SCS and its adjacent seas and land is in balance within the study period.

关键词： altimetry GRACE ECCO the South china Sea sea level variation

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Discussion on development Mode of Large Railway Hubs in High-speed Rail Era:From Transportation Complex to Urban Complex

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china City Planning Review 2011年第4期20卷 33-39页

作者： LI Shengquan, ZHANG Qianghua,SHI Ke Department of Urban and Regional Planning, school of geographic and oceanographic sciences, nanjing university Department of Urban and Regional Planning, school of geographic and oceanographic sciences, nanjing university

At present, most of china's railway hubs are developed to be transportation complexes, with some problems like unsmooth traffic circulation, mixed but disordered functions, separated spaces, etc. In high-speed rail era, high-speed railway hubs should be regarded as the catalyst to promoted urban development. The mode of urban complex should be developed, to closely connect the railway hub and the surrounding area within walking distance, so as people could get to their destinations in the most convenient way. Furthermore, it would strengthen people's aggregation, thus to bring about larger scale urban development by the successful development of urban complex.

关键词： high-speed railway railway hub transportation comp

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The Geomorphologic Process of the Diamicton in Jinpingzi in the Valley of Jinsha River,china

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地学前缘 2009年第S1期16卷 45-45页

作者： Qinmian Xu~1,Dayuan Yang~2,Zhaoshuai Ge~3.1.Tianjin Institute of Geology and Mineral Resources,Tianjin 3.0170,china. 2.school of geographic and oceanographic sciences,nanjing university,{3. 3.school of Urban and Environmental sciences,Xuzhou Normal university,Xuzhou 221116,china

The diamicton of Jinpingzi,which looks like a slide according to morphological character,lies on the Kangdian tectonic *** as geomorphologic, sedimentary characteristics and stratigraphy of the diamicton of Jinpingzi,there are three geomorphologic processes,which are accumulation and sidesway(197-13. ka B.P.),divagation and incision(13.-41ka B.P.) and intensity

关键词： the Jinsha River:diamicton Late Medio-Pleistocene geomorphic process

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历史文化旅游资源数量敏感度调整评价模型研究——以江苏吴江水乡古镇古诗词文化为例

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苏州科技学院学报（自然科学版） 2011年第4期28卷 1-7页

作者：张捷南京大学地理与海洋科学学院江苏南京210093

以古诗词为例,构建了地方非物质文化旅游资源的定性评价模式、文化资源价值定量评价模型和文化资源旅游价值综合评价模型,并根据心理学原理构建了可以纠正以往线性取值方法不足的新的敏感度调整取值方法,以适应资源总体评价中单体数量... 详细信息

以古诗词为例,构建了地方非物质文化旅游资源的定性评价模式、文化资源价值定量评价模型和文化资源旅游价值综合评价模型,并根据心理学原理构建了可以纠正以往线性取值方法不足的新的敏感度调整取值方法,以适应资源总体评价中单体数量的边际效用递减现象。该文结果实际上也是以诗词为底蕴的地方文脉乃至非物质文化遗产的评价模式。文中结合吴江水乡古镇的规划进行了案例分析。

关键词：古诗词旅游资源非物质文化资源评价边际递减

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