利用时间域频谱激发极化反演区分探测目标     

Lew.  RJG  王艳君 《物探化探译丛》1989,(3):31-33

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近地表速度梯度及其对浅反射数据的影响     

Mill.  RD 王艳君 《物探化探译丛》1998,(A04):74-77

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印度尼西亚松巴哇岛西南Batu Hijau斑岩铜—金矿例研究     

Fern.  AB  王艳君 《物探化探译丛》1998,(2):34-38

世界级的Ｂａｔｕ Ｈｉｊａｕ斑岩铜－金矿床位于印度尼西亚松巴哇岛,１９９０年被Ｎｅｗｍｏｎｔ公司发现。这类矿床在西太平洋其他一些岛弧斑岩矿床是是比较典型的。它们在与火成岩的关系、产出形态、热液蚀变和矿化种类等方面具有共同特征。矿化主要发生在闪长岩和安山质闪火山岩内的英闪岩侵入染岩中。主侵入体在矿床中部形成一个柱状岩株,控制了大部分高品位铜的金矿化。钾蚀变核心带从内向外渐变成广泛的绿磐岩蚀变,这两种  相似文献   

用探地雷达和谱激发极化法追踪地下污染   总被引：1，自引：0，他引：1  

Lima  OAL 王艳君 《物探化探译丛》1998,(1):40-43

我们把探地雷达（ＧＰＲ）与谱激发极化法（ＳＩＰ）相结合,去查明与巴西巴伊亚萨尔瓦多附近一个石油化工企业所产生非水相重液（ＤＮＡＰＬｓ）的一次大量泄漏有关的水文地质构造,地下通道及残留污染物积存处所。这些有害的有机化学物质已浸入到上部潜水层并深深地渗入一个厚且范围大的半承压多层含水层系。经处理的ＧＰＲ断面可用来填绘出潜水面起伏,详细划分上部潜水带层序,并重建流过它的污染前缘的总体形态。电阻率和激发极  相似文献   

气候变化对人类健康影响的研究：IPCC AR6 WGⅡ的解读          下载免费PDF全文

王艳君  王东方  高妙妮  单敬敬  苏布达 《大气科学学报》2022,45(4):520-529

IPCC第六次评估报告(AR6)第二工作组(WGⅡ)报告第七章《健康、福祉和不断变化的社区结构》评估了气候变化对健康和福祉的当前影响与未来风险,提出了应对气候变化的适应策略和适应限度。指出自AR5以来越来越多的证据表明,气候变化通过直接或间接方式对人类健康(包括精神健康)造成了负面影响,气候敏感性疾病、营养不良、过早死亡,以及对精神健康的威胁正在增加,气候相关的危害正日益影响越来越多的健康结局(包括传染性和非传染性疾病)和地区。在所有人类居住的地区,都观察到极端天气事件对健康造成的级联及复合风险,且风险还会随着全球变暖而进一步增大。扩大对卫生和其他系统的金融投资,加强跨部门和跨系统的整合与合作,创建气候恢复力发展路径,将适应和减缓纳入可持续发展目标,可以为健康和福祉带来巨大的协同效益,是降低人类健康风险的重要适应措施。  相似文献   

Spatio-temporal distribution and characteristics of PAHs in sediments from Masan Bay, Korea   总被引：8，自引：0，他引：8  

Yim UH  Hong SH  Shim WJ  Oh JR  Chang M 《Marine pollution bulletin》2005,50(3):319-326

The distribution of polycyclic aromatic hydrocarbons (PAHs) has been investigated in the surface and core sediments from Masan Bay, Korea. Total PAHs in the surface sediments ranged from 207 to 2670 ng/g dry weight with a mean value of 680 ng/g. Qualitative similarity and quantitative difference between inner and outer bay indicate that the main sources of PAHs are located in the inner bay and outer bay is also affected by the same sources. Vertical distribution of PAHs revealed that three distinctive stages could be differentiated with the help of PCA analysis. The highest concentration (industrialization stage) appeared between late 1950s and 1980, which was 10 years later than other developed countries. A strong pyrolytic source fingerprint has been detected with slight influence of petrogenic sources, and diagenetic PAH, perylene also contributed. Total organic carbon normalized PAHs (sum of 13 PAHs, 8.85-88.0 microg/g OC) were under the threshold effects concentration (TEC, 290 microg/g OC).  相似文献   

Assessment of butyl- and phenyltin pollution in the coastal environment of Korea using mussels and oysters     

Shim WJ  Hong SH  Kim NS  Yim UH  Li D  Oh JR 《Marine pollution bulletin》2005,51(8-12):922-931

Butyl- and phenyltin residues in bivalves were quantified around the coast of Korean peninsula in 1995–1998 and 2001. Butyltin compounds were detected at all the sites surveyed, whereas phenyltins were detected at 41 out of 67 sites in 1995–1998. Tributyltin (TBT) concentrations in bivalves ranged 48–2800 ng Sn/g on dry weight basis. Triphenyltin (TPT) concentrations ranged <3–1820. The mean TPT concentration was 3.5 times less than that of TBT. Spatial distribution of TBT was closely related to boating and dry-docking activities. TPT concentration in bivalves showed significant correlation with TBT. Concentrations of TBT in bivalves, 2001 are not significantly changed compared to those in 1995–1998. However, TPT concentrations in bivalves steeply decreased in 2001. High concentration of TBT and lesser extent TPT and their nation-wide distribution indicate that organotins are one of major organic pollutants in the marine environment of Korea.  相似文献   

A survey of polychlorinated dibenzo-p-dioxins and furans in Korean seafood-a congener-specific approach     

Oh JR  Hong SH  Shim WJ  Kannan N 《Marine pollution bulletin》2005,50(10):1121-1127

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数理统计学方法在中国水产资源研究中的应用概述   总被引：1，自引：0，他引：1  

王艳君  刘群  付道军 《海洋湖沼通报》2004,(3):69-73

数理统计学方法对于水产资源学的发展发挥了极其重要的推动作用。数理统计方法在中国水产资源学的应用．起步于50年代．发展于60到80年代，90年代以后进入了一个崭新的发展阶段。作为一个发展中国家，同世界其他国家相比．我们将面临着更多的机遇与挑战。  相似文献   

SPATIO-TEMPORAL VARIATION OF ACTUAL EVAPOTRANSPIRATION AND ITS RELATION WITH CLIMATE PARAMETERS IN THE PEARL RIVER BASIN, CHINA     

吴萍  李修仓  苏布达  占明锦  王艳君  姜彤 《热带气象学报(英文版)》2017,23(1):81-90

Spatio-temporal variation of actual evapotranspiration (ETa) in the Pearl River basin from 1961 to 2010 are analyzed based on daily data from 60 national observed stations. ETa is calculated by the Advection-Aridity model (AA model) in the current study, and Mann–Kendall test (MK) and Inverse Distance Weighted interpolation method (IDW) were applied to detect the trends and spatial variation pattern. The relations of ETa with climate parameters and radiation / dynamic terms are analyzed by Person correlation method. Our findings are shown as follows: 1) Mean annual ETa in the Pearl River basin is about 665.6 mm/a. It has significantly decreased in 1961–2010 at a rate of -24.3 mm/10a. Seasonally, negative trends of summer and autumn ETa are higher than that of spring and winter. 2) The value of ETa is higher in the southeast coastal area than in the northwest region of the Pearl River basin, while the latter has shown the strongest negative trend. 3) Negative trends of ETa in the Pearl River basin are most probably due to decreasing radiation term and increasing dynamic term. The decrease of the radiation term is related with declining diurnal temperature range and sunshine duration, and rising atmospheric pressure as well. The contribution of dynamic term comes from increasing average temperature, maximum and minimum temperatures in the basin. Meanwhile, the decreasing average wind speed weakens dynamic term and finally, to a certain extent, it slows down the negative trend of the ETa.  相似文献