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Variation characteristics of stable isotopes in atmospheric precipitation in adelaide,Australia

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地球环境学报 2024年第4期15卷 641-652页

作者： WANG Dizhou ZHANG Xinping LIU Zhongli LI Guang GUAN Huade School of Geographic Sciences Hunan Normal UniversityChangsha 410081China Hunan Key Laboratory of Geospatial Big Data Mining and Application Hunan Normal UniversityChangsha 410081China School of the Environment Flinders UniversityAdelaide 5001Australia

Background,aim,and scope Stable isotope in water could respond sensitively to the variation of environment and be reserved in different geological archives,although they are scarce in the *** the methods derived from the stable isotope composition of water have been widely applied in researches on hydrometeorology,weather diagnosis,and paleoclimate reconstruction,which help well for understanding the water-cycle processes in one ***,it is aimed to explore the temporal changes of stable isotopes in precipitation from adelaide,Australia and determine the influencing factors at different *** and methods Based on the isotopic data of daily precipitation over four years collected in adelaide,Australia,the variation characteristics of dailyδD,δ^(18)O,and dexcess in precipitation and its relationship with meteorological elements were *** The results demonstrated the local meteoric water line(LMWL)in adelaide,wasδD=6.38×δ^(18)O+6.68,with a gradient less than *** is a significant negative correlation between dailyδ^(18)O and precipitation amount or relative humidity at daily timescales in both the whole year and wither/summerhalf year(padelaide area in January was mainly influenced by strong convective weather,and the stable isotope values in precipitation were significantly ***,this propose was also evidenced by the results from dexcess of precipitation with larger value in the winter half-year than that in the summer half-year,which may be resulted from the precipitation events in winter are mostly influenced by oceanic water vapor,while the sources of water vapor in summer precipitation eve

关键词： adelaide precipitation stable isotopes meteoric water line stepwise regression analysis

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澳大利亚adelaide工厂矿棉板生产介绍

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玻璃纤维 1982年第3期 32-37+31页

作者：毕道义

Biadford公司是澳大利亚最大的生产保温材料的公司。它拥有四个厂,其中adelaide矿棉厂是一个历史较久的老厂。采用的生产技术原则U是尽量减少高度复杂设备和辅助设施,简化工艺,并根据市场需求关系随时改变产品和产量。毋需建设大容量的... 详细信息

Biadford公司是澳大利亚最大的生产保温材料的公司。它拥有四个厂,其中adelaide矿棉厂是一个历史较久的老厂。采用的生产技术原则U是尽量减少高度复杂设备和辅助设施,简化工艺,并根据市场需求关系随时改变产品和产量。毋需建设大容量的产品库。三班制时年产量为一万吨,目前有两条生产线,只采用一班制生产,每条线年产量为3700吨左右。

关键词：固化炉沉降室纤维后燃烧器除尘设备后反应器酚醛树脂 adelaide 输送机树脂固化冲天炉化铁炉

Late Cryogenian glaciation in South Australia:Fluctuating ice margin and no extreme or rapid post-glacial sea-level rise

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Geoscience Frontiers 2019年第4期10卷 1397-1408页

作者： George E.Williams Victor A.Gostin Department of Earth Sciences University of Adelaide

Postulated extreme sea-level rise of up to 1-1.5 km with the late Cryogenian Ghaub deglaciation in Namibia is contentious,as is the great rapidity(<104 yr)of the sea-level *** extreme glacioeustatic events,if real,wou... 详细信息

Postulated extreme sea-level rise of up to 1-1.5 km with the late Cryogenian Ghaub deglaciation in Namibia is contentious,as is the great rapidity(adelaide Rift Complex,diamictite with faceted and striated clasts occurs at the top of the Elatina Formation<1-2 m beneath the early Ediacaran Nuccaleena Formation’cap carbonate’.One hundred kilometres to the south,~30 m of siltstone and sandstone followed by^6 m of clast-poor diamictite with clasts 10+cm long occur between tidal rhythmites and the cap *** hundred kilo metres further south,~70 m of siltsto ne,dolo mitic siltstone and minor dolomite separate tidal rhythmites and early Ediacaran *** the rhythmites were deposited during a high stand(interstadial or interglacial),not during post-glacial sea-level ***-generated erosional surfaces within tidal rhythmites at Warren Gorge indicate intermittent rhythmite deposition,and water depth and other palaeoenvironmental factors are uncertain,casting doubt on a published estimate of rapid sea-level rise during rhythmite *** lack of late Cryogenian deeply incised valleys and thick valley-fill deposits in South Australia and central Australia argues against extreme sea-level variations.A hiatus occurred between Elatina deglaciation and deposition of the Nuccaleena cap carbonate,and three palaeomagnetic polarity chrons identified in the cap carbonate imply slow deposition spanning 10^5-10^6 *** is supported by independent evidence from magnetic chronostratigraphy for Ediacaran strata in South Australia and Califo

关键词： Late Cryogenian glaciation Sea level adelaide Rift Complex Elatina Formation Nuccaleena Formation

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基于遥感和城市空间形态学方法的城市热环境研究

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基于遥感和城市空间形态学方法的城市热环境研究

作者：张海龙南京信息工程大学

学位级别：硕士

随着经济高速发展,城市化进程不可避免。建筑物的高度密集化使城市几何形状和表面特性发生大面积变化,进而使城市热环境状况变得更加复杂,局部地区出现热岛效应加剧现象。城市建筑物布局和高度对城市热岛效应和气温变化的影响不容忽视... 详细信息

随着经济高速发展,城市化进程不可避免。建筑物的高度密集化使城市几何形状和表面特性发生大面积变化,进而使城市热环境状况变得更加复杂,局部地区出现热岛效应加剧现象。城市建筑物布局和高度对城市热岛效应和气温变化的影响不容忽视且日益显著。因此,深入研究建筑物空间形态对城市热环境变化的影响具有重大意义和科学价值。本文以澳大利亚adelaide中心城区作为研究区,基于lm空间分辨率3D建筑物数据计算天空开阔度(Sky View Factor, SVF)、建筑物迎风面积指数(Frontal Area Index, FAI)等多种城市空间形态学参数。在此基础上,结合遥感技术和实测反照率数据估算城市街道吸收太阳入射辐射量,并采用19个站点的2010年10月-2011年10月实测气温数据分析adelaide城市热岛强度(Urban Heat Island Intensity, UHⅡ)变化,最后系统地深入分析不同季节、不同时间段城市空间形态学参数、地表吸收太阳入射辐射等因子对热岛效应和气温的定量影响。论文主要研究结论包括：(1)晴天天气下,adelaide城市热岛强度在四季都呈夜间强,白天弱的规律。在夜间,春、秋季最大,冬季次之,夏季最小。UHⅡ在四季的白天都不明显,夏季最大,最小为春季,甚至出现“冷岛”现象。(2) 以鱼眼相机获取的天空开阔度SVFfish-eye作为验证数据,选取200m作为最优搜索半径,基于3D建筑物数据计算SVFs与SVFfish-eye之间的相关系数为0.97,RMSE为0.13,这表明SVFs估测精度高。利用3D建筑物数据计算出其他多种空间学形态参数,包括建筑物高宽比、建筑平面面积比率、建筑物平均高度、街道平均宽度等,相关分析表明SVF与高宽比、建筑平面面积比率和建筑物平均高度具有显著相关性,与街道平均宽度相关性不显著。其中,SVF与高宽比的相关性最大。(3) SVF和UHⅡ在四季的夜间都呈显著线性负相关。中午到午后附近,春季、秋季和冬季呈显著线性正相关,而在夏季白天时段都不显著。晴天、阴天和雨天三种天气状况下,SVF与UHⅡ的负相关性在夜间差别不大。在白天,晴天下正相关性大于阴天和雨天。(4)晴天天气状况下,FAI-UHⅡ在夜间呈显著对数关系,白天呈线性负相关。仅春季和冬季的正午时刻附近呈显著线性负相关,其他时刻不显著。以200m作为研究空间尺度,在春季和冬季夜间,FAI-UHⅡ相关性强于SVF-UHⅡ,在夏季和秋季夜间差别较小。对于白天而言,在秋季,SVF-UHⅡ的相关性略强于FAI-UHⅡ,其他季节的影响差异小。此外,不同搜索半径下SVF与UHⅡ关系的普适性优于FAI参数。(5)利用3D建筑物数据判断站点在不同时刻是否落在阴影中,模拟到达街道表面的太阳直射辐射、散射辐射和邻近建筑物墙面反射辐射量,进而利用地表反照率实测数据计算出在不同时段城市街道吸收太阳入射辐射量,初步探讨其辐射累积量(Total Absorbed Solar Irradiation, TASI)与气温之间的相关性。研究结果表明：对于某一站点,白天时段的TASIT与对应时刻气温呈显著线性正相关;13个站点的TASIT与对应站点气温在白天不同时刻的相关性存在差异,主要原因是在不同时刻地面净短波辐射对地表净辐射贡献不同。两者在日出时刻附近呈负相关。在9：00至16：30时刻,两者呈线性正相关,相关系数大于0.4,仅在13：00至15：30时段内显著。从16：30至日落时刻,两者的相关性弱。

关键词：城市热岛效应 adelaide 3D建筑物数据 SVF FAI 太阳辐射

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第一位大学护理教授——Nutting

护理研究（中旬版） 2009年第1期23卷 187-187页

作者：王斌全赵晓云山西医科大学第一医院山西医科大学护理学院