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| 1 | 南极冰盖最高点满足钻取最古老冰芯的必要条件:Dome A最新实测结果显示文摘在极地冰盖,“低温、低积累率”是获取古老冰芯的必要条件之一.通过南极冰盖最高点Dome A(冰穹A)自动气象站连续记录的2005年和2006年10m深度雪温数据,得到Dome A的多年平均气温约为-58.3℃,较东南极冰盖分冰岭的其他冰穹如Dome C,Dome F,Dome B以及Vostok均低。是迄今地球上实测最低年平均温度;从雪冰气温代用指标δ^18O和δD测值看,Dome A在上述地点中亦最低.自动气象站记录的雪面高度数据表明2005—2006年间Dome A年积累率约0.01-0.02m水当量,是迄今在东南极冰岭测得的最小积累率.Dome A低温、低积累率特点是寻找年代超过1Ma冰芯的必要条件. | 效存德 李院生 侯书贵 Ian Allison 卞林根 任贾文 | 2007 | 科学通报2007,52,20: | 21 |
| 2 | 南极Dome A地区的近期积累率显示文摘根据总β活化度标志层确定南极Dome A地区的近期平均积累率为0.023m水当量/a,该值与南极内陆其他观测点的积累率相当.晴天降水(clear-sky precipitation)是DomeA地区的一种主要降水方式.基于Dome A地区的低积累率和冰层厚度等,推论Dome A地区可能存在南极最古老的冰. | 侯书贵 李院生 效存德 任贾文 | 2007 | 科学通报2007,52,2: | 18 |
| 3 | 极地冰芯研究的新焦点:NEEM与Dome A显示文摘格陵兰冰芯以高分辨率著称,已经揭示的末次冰期出现的快速气候变化为我们深入了解地球气候环境变化的规律做出了重要贡献.目前,新启动的格陵兰NEEM计划以末次间冰期为目标,试图更详细地反演末次间冰期及其以来气候环境的变化规律,为深刻认识与末次间冰期有类似性的现今气候提供有益的帮助.南极冰芯以长时间尺度为特色,对揭示地球轨道尺度的气候变化有独特优势.在DomeA钻取冰芯以寻求百万年时间尺度的冰芯记录成为南极冰芯研究的焦点. | 任贾文 效存德 侯书贵 李院生 孙波 | 2009 | 科学通报2009,54,4: | 18 |
| 4 | ICESat卫星及其在南极Dome A地区的应用显示文摘概述了GLAS高度计的在轨性能,分析了其数据产品的精度。利用高精度的ICESat卫星测高数据,以及第21次中国南极科学考察内陆冰盖考察GPS的实测资料,验证了此次考察中南极内陆冰盖Dome A最高点可能区域选取的正确性,并分析了Dome A最高点位置测定的准确性。 | 鄂栋臣 徐莹 张小红 | 2007 | 武汉大学学报(信息科学版)2007,32,12: | 16 |
| 5 | 基于ASTER立体数据和ICESat/GLAS测高数据融合高精度提取南极地区地形信息显示文摘为了更好地保证从中山站到DomeA的南极内陆冰盖考察,该考察路线沿线的地形信息是必需的.虽然Radarsat南极制图计划(RAMP)能提供迄今为止最高精度的全南极数字高程模型(DEM),其最高水平分辨率为200m,但其真正的水平分辨率根据源数据的比例尺和区域覆盖密度不同而不同.对于冰架和内陆冰盖地区,水平精度约为5km.在东南极内陆冰盖地区和远离山脉地区该DEM的垂直精度估计为±50m,因此更高精度的地形数据还不存在.为了满足将来对地形信息更高精度的要求,由于ASTER光学影像具有高的空间分辨率(15m),而ICESat/GLAS测高数据有较高的高程精度(13.8cm),因此本文融合ASTER立体数据和ICESat/GLAS测高数据提取了该考察路线高精度数字高程模型.首先选择一些测高数据点作为ASTER提取DEM过程中的高程控制,以减少匹配错误.由于从75°~81°S范围没有合格的ASTER立体数据覆盖,并且在该范围内ICESat轨道覆盖度大,观测数据比较密集,因此在该区域仅使用ICESat测高数据提取DEM,最后生成覆盖整条路线的DEM.分析结果表明DEM精度得到很大的提高,DEM的绝对垂直精度某些地区优于15m,除了影像009-001外,其余所有结果精度都在30m以内.其内部精度优于15m,某些情况下优于7m.生成的结果达到1:50000制图标准.结果表明在南极地区,综合利用各种遥感数据提取南极地区冰面地形信息是一种经济有效的手段. | 鄂栋臣 沈强 徐莹 Gang Chen | 2009 | 中国科学(D辑)2009,39,3: | 14 |
| 6 | Dome Combustion Hot Blast Stove for Huge Blast Furnace显示文摘In Shougang Jingtang 5 500m 3 huge blast furnace ( BF ) design , dome combustion hot blast stove ( DCHBS ) technology is developed.DCHBS process is optimized and integrated , and reasonable hot blast stove ( HBS ) technical parameters are determined.Mathematic model is established and adopted by computational fluid dynamics ( CFD ) .The transmission theory is studied for hot blast stove combustion and gas flow , and distribution results of HBS velocity field , CO density field and temperature field are achieved.Physical test model and hot trail unit are established , and the numeral calculation result is verified through test and investigation.3-D simulation design is adopted.HBS process flow and process layout are optimized and designed.Combustion air two-stage high temperature preheating technology is designed and developed.Two sets of small size DCHBSs are adopted to preheat the combustion air to 520-600℃.With the precondition of BF gas combustion , the hot blast stove dome temperature can exceed 1 420 ℃. According to DCHBS technical features , reasonable refractory structure is designed.Effective technical measures are adopted to prevent hot blast stove shell intercrystalline stress corrosion.Hot blast stove hot pipe and lining system are optimized and designed.After blowing in , the blast temperature keeps increasing , and the monthly average blast temperature reaches 1 300℃ when burning single BF gas. | ZHANG Fu-ming , MAO Qing-wu , MEI Cong-hua , LI Xin , HU Zu-rui ( Beijing Shougang International Engineering Technology Co Ltd , Beijing 100043 , China ) | 2012 | Journal of Iron and Steel Research(International)2012,19,9: | 11 |
| 7 | High-accuracy topographical information extraction based on fusion of ASTER stereo-data and ICESat/GLAS data in Antarctica显示文摘In order to better support Antarctic inland ice sheet expedition from Zhongshan Station to Dome A,the topographic data are necessary.At present,although the entire Antarctic DEM provided by RAMP(Ra-darsat Antarctic Mapping Project) was estimated at the highest horizontal(spatial) resolution of about 200 m,the real horizontal resolution of the DEM varies from place to place depending on the density and scale of the original source data.For ice shelves and the inland ice sheet,the horizontal resolution is about 5 km;the vertical accuracy is estimated to be ±50 m in interior East Antarctic ice sheet and away from the mountain ranges.Therefore,more accurate topographic data are unavailable in Antarc-tica.In order to meet the requirements of high-accuracy topographic information for further researches,this paper mainly addresses a fusion study of ASTER stereo pairs and ICESat/GLAS altimetry data for extraction of high-accuracy DEM in East Antarctica,based on the high horizontal resolution(15 m) of ASTER and vertical accuracy(13.8 cm) of ICESat/GLAS.First,some altimetry data were selected as vertical control points to reduce errors of image correlation matching during the extraction of ASTER-based DEM.Second,ice sheet altimetry data derived from ICESat were used to generate DEM ranging from 75° to 81°S because existing ASTER data do not cover this area and high density of the coverage of ICESat altimetry data.Finally,the DEM in coverage of the expedition route was produced.The analysis of result reveals that the DEM accuracy is improved significantly.The absolute vertical accuracy of DEM is higher than 15 m in some cases and higher than 30 m for all the areas along the expedition route except from the 009-001 scene;the interior accuracy is higher than 15 m and higher than 7 m in some cases.It can meet the requirements of topographic map at 1:50000 scale,which is an economic and advantageous method to produce the topographic products. | E DongChen1,3,SHEN Qiang2,XU Ying1,3 & CHEN Gang4 1 Chinese Antarctic Center of Surveying and Mapping,Wuhan University,Wuhan 430079,China 2 Institute of Seismology China Earthquake Administration,Wuhan 430071,China 3 Key Laboratory of Polar Surveying and Mapping,State Bureau of Surveying and Mapping,Wuhan University,Wuhan 430079,China 4 Department of Geography,University of Calgary,Calgary,Alberta T2N 1N4,Canada | 2009 | Science China Earth Sciences2009,52,5: | 9 |
| 8 | The Pengguan tectonic dome of Longmen Mountains, Sichuan Province:Mesozoic denudation of a Neoproterozoic magmatic arc-basin system显示文摘Neoproterozoic igneous and metamorphic complexes occur as tectonic domes in the Longmen Mountains of the western margin of the Yangtze Block, and are important in reconstructing the Rodinian supercontinent and constraining the timing and mechanism of tectonic denudational processes. The Pengguan dome consists of granitic intrusions and metamorphic rocks of the Huangshuihe Group and is tectonically overlain by ductilly deformed Sinian to Paleozoic strata. The plutonic intrusions consist of granites with abundant amphibolite enclaves. New LA-ICP-MS zircon U-Pb dating yielded an emplacement age of 809±3 Ma and a protolith age of 844±6 Ma for the granite. The granitic rocks have geochemical signatures typical of A-type granites, indicating their formation under an extensional environment, by melting of newly formed tonalite-trondhjemite-granodiorite (TTG) rocks. A detachment fault, characterized by variable ductile shear deformation of S-C fabric and ESE-ward kinematics, separates the Pengguan dome from the Sinian-Paleozoic cover. 40Ar/39Ar dating of muscovite from the mylonite in the detachment fault of the dome demonstrates that ductile deformation occurred at ~160 Ma. This study indicates the existence of a Neoproterozoic magmatic arc-basin system, which was denudated by a Jurassic middle crustal ductile channel flow along the Longmenshan thrust belt. | YAN DanPing ZHOU MeiFu WEI GuoQing GAO JianFeng LIU ShaoFeng XU Ping SHI XiaoYing | 2008 | Science China Earth Sciences2008,51,11: | 9 |
| 9 | Mesozoic doming extensional tectonics of Wugongshan, South China显示文摘Wugongshan in Jiangxi Province, China was a Mesozoic granitic dome type extensional tectonics that is composed of metamorphic core complexes, ductile and brittle shear deformed zones distributed around Mesozoic granites. Within it, the foliation defines an E W elliptical shape and bears S N stretching lineations. The axial part is located in Hongjiang Wanlongshan area and occupied by oriented granites with coaxial symmetric shear fabrics. The southern and northern flanks, including rocks in the Anfu Basin to the south and the Pingxiang Basin to the north, display top to south and top to north motions, respectively. The ductile and brittle structures indicate a geometric and kinematic consistency. The extensional tectonics is developed on a Caledonian metamorphic basement and is unconformably covered by Late Cretaceous red beds. Isotopic ages on muscovite, biotite and whole rock by 40 Ar 39 Ar, K Ar and Rb Sr suggest that the Wugongshan extensional doming began from the Triassic and ended in the Late Cretaceous. A geodynamic model is discussed. | 舒良树 孙岩 王德滋 M.Faure P.Monie J.Charvet | 1998 | Science China Earth Sciences1998,41,6: | 7 |
| 10 | 东南极冰盖中山站至DomeA断面冰雷达探测初步结果:冰厚和冰下地形显示文摘中国第24次南极科学考察(CHINARE24,2007-08)期间,通过车载冰雷达对东南极冰盖中山站至DomeA断面的冰厚和冰下地形进行了探测,测线总长1170km,其中在82%的测线上成功探测到冰岩界面,实测数据的水平分辨率<5.6m.测量数据经过处理生成沿断面走向的冰厚分布和冰下地形起伏曲线.结果显示,断面上的平均冰厚为2037m,低于东南极冰盖平均厚度,730km处冰厚最大,冰盖边缘位置冰厚最小(891m),内陆1020km位置冰厚略大于冰厚最小值,为1078m;冰下地形平均海拔728m,远高于东南极冰下地形高程平均值,其中1034km处海拔最高,达到2650m,765km处海拔最低.内陆深处900~1170km范围内冰下地形海拔较高,与该段位于Gamburtsev冰下山脉区域有关.除900km位置冰下地形的剧烈升高在冰面造成明显的地形抬升外,总体上,冰下地形对冰面地形的影响不大.在冰雷达探测到冰岩界面的部分,小尺度的冰厚和冰下地形变化相对密集且剧烈,表明沿断面的冰床粗糙度较大,认为是冰流运动、冰下环境和冰下地质构造共同作用的结果.冰雷达未能探测到冰岩界面的部分,冰厚明显较大.此外,由于该段冰流运动较强,增加了冰盖内部结构的复杂性,导致冰雷达信号在冰体内传播的衰减严重. | 崔祥斌 孙波 田钢 唐学远 张向培 蒋芸芸 郭井学 李鑫 | 2010 | 科学通报2010,55,19: | 7 |
| 11 | Characteristics of shallow gas hydrate in Okhotsk Sea显示文摘Multidisciplinary field investigations were carried out in Okhotsk Sea by R/V Akademik M.A. Lavrentyev (LV) of the Russian Academy of Sciences (RAS) in May 2006, supported by funding agencies from Ko- rea, Russia, Japan and China. Geophysical data including echo-sounder, bottom profile, side-scan- sonar, and gravity core sample were obtained aimed to understand the characteristics and formation mechanism of shallow gas hydrates. Based on the geophysical data, we found that the methane flare detected by echo-sounder was the evidence of free gas in the sediment, while the dome structure de- tected by side-scan sonar and bottom profile was the root of gas venting. Gas hydrate retrieved from core on top of the dome structure which was interbedded as thin lamination or lenses with thickness varying from a few millimeters to 3 cm. Gas hydrate content in hydrate-bearing intervals visually amounted to 5%―30% of the sediment volume. This paper argued that gases in the sediment core were not all from gas hydrate decomposition during the gravity core lifting process, free gases must existed in the gas hydrate stability zone, and tectonic structure like dome structure in this paper was free gas central, gas hydrate formed only when gases over-saturated in this gas central, away from these struc- tures, gas hydrate could not form due to low gas concentration. | Anatoly OBZHIROV | 2008 | Science China Earth Sciences2008,51,3: | 6 |
| 12 | 南极科考断面水汽同位素观测与模拟及其反映的水循环信息显示文摘大气水汽同位素实时监测为水循环和区域大气环流分析提供了新的定量化方法.依托雪龙号考察船,利用水同位素激光光谱仪(PICARRO L1102-i)完成了38°N^69°S海表大气水汽氢氧稳定同位素的观测,结合表层海水和GNIP降水同位素分析了多相水同位素纬向特征.结果表明:水汽、降水和表层海水同位素比率(δ18O,δD)随纬度呈明显的递变性规律,赤道最低,副热带升高,而在南极大陆外围高纬区域则急剧降低;过量氘(d-excess)变化与此相反,反映出副热带下沉气流对同位素富集影响以及高纬度极地气团经过洋面时过饱和分馏的剧烈变化.实测水汽同位素与LMDZ4-iso和ECHAM 5-w iso模型对比表明了模拟结果较好,根据模拟进一步分析了南极内陆Dome A水汽同位素反映的水汽源区.结果显示,除了中纬度印度洋海区之外,中低纬东太平洋海域也是冰盖内陆的重要水汽源区. | 柳景峰 效存德 丁明虎 Butzin Martin 任贾文 | 2014 | 冰川冻土2014,36,6: | 5 |
| 13 | Preliminary results of the close-off depth and the stable isotopic records along a 109.91 m ice core from Dome A, Antarctica显示文摘A 109.91 m ice core was recovered from Dome A (or Dome Argus), the highest ice feature in Antarctica, during the 2004/05 austral summer by the 21st Chinese National Antarctic Research Expedition (CHINARE-21). Both methane profile along the core and firn densification model calculation suggest that the close-off depth is at about 102.0 m with an ice age about 4200 a. Stable isotopes (δ18O and δD) of the chips samples produced during each run of ice core drilling at Dome A, together with those of the other cores recovered from the eastern inland Antarctica, suggest a relative stable climate with a temperature fluctuation amplitude about ±0.6℃ at the eastern inland Antarctica during the late Holocene. The average d-excess (or d =δ D-8δ 18O) of 17.1‰ along the Dome A core is probably the highest among the Antarctic inland ice cores, which may be resulted from the kinetic fractionation during the snow formation under an oversaturation condition. Moreover, the increasing trend of d-excess during the late Holocene reflects mainly the migration of the water source area for precipitation at Dome A towards low latitudes. This paper presents the first results of a shallow ice core recovered from the unexplored highest area of the Antarctic ice sheet, providing a background for the proposing deep ice core drilling at Dome A. | HOU ShuGui LI YuanSheng XIAO CunDe PANG HongXi XU JianZhong | 2009 | Science China Earth Sciences2009,52,10: | 5 |
| 14 | 东南极冰盖DomeA的内部等时层结构显示文摘DomeA被认为是有可能找到超过100万年深冰芯记录的理想钻探地点.冰盖内部的雷达等时层在深冰芯钻探选址和解释反演深冰芯包含的气候信息方面扮演重要角色.通过对中国第21次南极科学考察(CHINARE21,2004/05)期间获得的贯穿DomeA中心区域200km冰盖雷达断面数据的处理,得到DomeA附近的等时层分布.分析表明,在冰盖浅层(0~500m)等时层总体平坦,层间距小于50m,局部出现向斜层(syncline)和背斜层(anticline).在冰盖中、深部(500~2000m),层间距增大为50~100m,呈现为"亮层".当冰下地形波长与冰厚(3km左右)相当时,内部等时线追踪并趋向平行于冰下地形,局部有褶皱现象;而当冰下地形波长(20km左右)大于冰厚时,等时层不随冰下地形的起伏而起伏;在冰下地形剧烈变化的单个或两个山峰附近,内部等时层被冰下地形强烈扰动.在冰盖底部等时线存在缺失断裂等不连续现象.另外,结合冰盖厚度数据,找出了3个供选择构建预测冰芯钻探年代-深度关系的地点. | 唐学远 孙波 张占海 张向培 崔祥斌 李鑫 | 2010 | 中国科学:地球科学2010,40,11: | 4 |
| 15 | 南极Dome A地区高精度DEM的建立——顾及波形重定、坡度改正及数据融合显示文摘介绍了CryoSat-2LRM模式下优化后的OCOG、CFI和LIRT的3种波形重定算法。基于南极Dome-A昆仑站区的实测GPS数据,比较了CryoSat-2LRM模式下的3种波形重定方法,对不同波形重定算法下的测高数据进行了精度评估。结果表明优化后的OCOG算法精度最好,与GPS结果平均差值约为-0.07m,标准差约为0.60m,明显优于其他两种算法。通过比较坡度与卫星数据精度的关系,发现坡度因素对于卫星测高数据精度的影响不可忽视,在Dome A地区验证结果表明,坡度改正可使得卫星测高精度提高约38%。最后联合GPS和CryoSat-2OCOG数据,建立了南极Dome-A地区300m分辨率DEM,其精度约为0.24m。 | 李斐 宋国云 杨元德 郝卫峰 杨全明 | 2017 | 测绘学报2017,46,4: | 4 |
| 16 | 利用Envisat数据探测中山站至Dome A条带区域冰盖高程变化显示文摘在中山站至Dome A条带区域,利用2002-10~2007-09的Envisat RA2数据,对交叉点分析中的单一法、静态法与动态法进行了比较,结果表明:①动态参考算法优于其他两种算法;②反射能量是影响卫星测高确定冰盖高程变化的重要因素;③研究区域冰盖高程长期变化整体处于平衡,但其分布不均匀,恩德比地地区存在明显正增长,与ICESat一致。 | 杨元德 鄂栋臣 王泽民 袁乐先 | 2013 | 武汉大学学报(信息科学版)2013,38,4: | 3 |
| 17 | 南极冰盖中山站-Dome A断面表层雪内δ^(18)O分布显示文摘测试了中国南极考察内陆冰盖考察沿线约1248km断面上(中山站至DomeA)表层雪中氧稳定同位素组成.通过回归分析得出了δ18O-气温(T)分布梯度、δ18O-海拔(H)高度效应和年均温-海拔效应递减率分别为-0.84‰/℃,-1.1‰/100m和1.31℃/100m,分析过程均通过99.9%的置信度检验. | 丁明虎 效存德 金波 任贾文 秦大河 孙维贞 | 2010 | 科学通报2010,55,13: | 2 |
| 18 | Design and development of infrastructure of the Dome A Kunlun Station(2005–2015)显示文摘To enable further advanced study of Antarctica, a new station called Kunlun Station has been built by China in the Dome A region of the inland East Antarctic ice sheet. This paper describes the Antarctic station building design system that was developed with consideration of factors that may affect Kunlun Station, such as environment and climate, construction work and transport, environmental protection and energy conservation, psychological requirements and functional requirements. The design system included site selection, station planning, external building form, construction work, function and indoor environment, energy conservation, environmental protection, and material strategy. We also describe the experience acquired during the transportation and construction phases of Kunlun Station. | ZHANG Yi WANG Zhongjun | 2017 | Advances in Polar Science2017,28,3: | 1 |
| 19 | Behaviour of Friction Stir Dissimilar Welded Blanks and The Role of Different Tool Pin Profiles显示文摘In this study,the forming behaviour of dissimilar welded blanks was studied.Welded blanks were prepared with friction stir welding processwith different types of tool pin profiles.Welded blanks were developed with fixedfriction stir welding process parameters by varying the tool pin profiles.The forming behaviour of welded blanks were analyzed with the limiting dome height test in biaxial stretch forming condition.The results reveal that the formability of welded joints are made with the square pin tool exhibited a better formabilitybehaviour when compared with other profiled tools,this is due to sufficient amount heat generation and high static volume to dynamic volume ratio. | Bhanodaya Kiran Babu Nadikudi | 2019 | Journal of Metallic Material Research2019,2,2: | 1 |
| 20 | The PTst Evolution of Metamorphism and Development Mechanism of the Thermal-Structural-Gneiss Domes in the Chinese Altaides显示文摘A series of thermal-structural-gneiss domes (briefly TSG domes) are developed in the Chinese Altaides. Sericite-chlorite zone, biotite zone, garnet zone, staurolite zone, kyanite (andalusite)zone, sillimanite- cordierite (sillimanite-garnet)zone, migmatite zone and migmatic granite- gneiss field are developed from the low-grade metamorphic area to the centre of the TSG domes. The succession of the formation and evolution of the progressive metamorphic zone, migmatite zone and migmatic granite-gneiss corresponds to the spatial sequence from the outer part to the centre of the TSG domes. The peak temperature of the metamorphism and granitization increases progressively from 400℃ to 800℃ while the pressure decreases progressively from 1.05 GPa to 0.10 GPa from the biotite zone to the migmatic granite-gneiss field. The metamorphism of the erogenic belt may be described by the pressure-temperature-space-time model (PTst). In the main episode of orogeny, the deep heat flow and structural flow upsurged | Zhuang Yuxun Institute of Geology, CAGS, Beijing | 1994 | Acta Geologica Sinica(English Edition)1994,68,3: | 1 |