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您的检索式：作者名="Senapathi VENKATRAMANAN"
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| 1 | Application of remote sensing and GIS analysis for identifying groundwater potential zone in parts of Kodaikanal Taluk, South India显示文摘地下水潜在的地区在遥感和地理信息系统(GIS ) 的帮助下被界定技术。学习区域是在其它上统治的太古代年龄和 charnockite 的镇静的岩石。为识别地质学的地下水潜力地区考虑的参数倾斜,排水密度,似地球形状的单位和貌密度用容纳的资源(红外 P6 LISS IV MX )被产生规模 1:50000 的印度( SOI ) toposheets 的数据和调查并且综合他们与反的距离加权( IDW )基于 GIS 数据当模特儿识别学习区域的地下水潜力。合适的 weightage 因素为这些参数的每个范畴被分配。为各种各样的似地球形状的单位, weightage 因素基于他们的能力被分配存储地下水。这个过程为所有另外的层被重复,结果的层是 reclassified。reclassified 层然后被联合作为很好、好、中等、低、差界定地区。这个地下水潜力信息能为农村人口为饮料水的抽取被用于合适的地点的有效鉴定[出版摘要] | Murugesan BAGYARAJ Thirunavukkarasu RAMKUMAR Senapathi VENKATRAMANAN Balasubramanian GURUGNANAM | 2013 | Frontiers of Earth Science2013，7，1： | 6 |
| 2 | Evaluation of geochemical behavior and heavy metal distribution of sediments:The case study of the Tirumalairajan river estuary,southeast coast of India显示文摘The purpose of this study was to assess the chemical partitioning of selected heavy metals(Fe,Mn,Cu,Zn,Pb,Cr,Co and Ni) in 10 surface sediments at Tirumalairajan River Estuary in the southeastern coast of India.A five-step sequential extraction technique was used to assess the environmental status of heavy metals.Most of metals were considered to be immobile due to the high availability in the residual fraction of heavy metals.The sediments of Tirumalairajan River estuary had not been polluted by heavy metals,and they didn't pose any high ecological risk.The seasonal variations of heavy metals were slightly higher in summer than in monsoon season.Factor analysis was also carned out to understand the associations of metals in different fractions with sand,silt,clay,organic matter,pH,salinity and other metals.The relationship between the Q-mode and R-mode cluster analyses was useful for identifying the pollution levels in both seasons.It was proved that the enrichment of heavy metals was related with geogenic and anthropogenic sources.The information on total metal concentrations in sediments was not sufficient for assessing the metal behavior in the environment,but the sequential extraction technique was more effective in estimating the environmental impact of contaminated sediments. | Senapathi VENKATRAMANAN Sang-yong CHUNG Thirunavukkarasu RAMKUMAR Gopalakrishnan GNANACHANDRASAMY Tae Hyung KIM | 2015 | International Journal of Sediment Research2015，30，1： | 2 |
| 3 | Variations in texture of beach sediments in the vicinity of the Tirumalairajanar river mouth of India显示文摘沿着在 Karikal 和 Nagore 之间的沙滩沉积的 11 km 段的谷物尺寸参数的分发,表明吝啬的谷物尺寸在从西方流动到东方的 Tirumalairajanar 河的嘴的任何一个方面上展出一个显著减少趋势。沉积主要具有媒介到粗糙颗粒,中等排序,在对称附近在自然扭曲了到扭曲的罚款和 leptokurtic 到 mesokurtic。各种各样的参数的相互关系显示出有媒介的优势到粗糙的沙的沉积的 bimodal 自然。沉积秋天在的主要部分一对精细的范畴(沙和淤泥) 粗糙。基于 CM (更粗糙的在微米的百分位数价值) 模式,在滚动的沉积秋天和暂停地。这些因素包括从河混合解除与的沉积近海沉积并且与沉积从来源岩石侵蚀了。波浪排序的效果,并且向北方由沿岸的电流沉积漂流是可理解的。结果显示 Tirumalairajanar 河是为在学习区域的现代沉积的最重要的来源。由波浪的焦虑是在在学习区域的沉积运输向北方是的学习区域,和网的重要排序机制。调查结果基于谷物尺寸并且也在在 Karaikal 和 Nagore 区域之间的季风和夏天季节期间由沙滩沉积动力学和运输的短期的观察支持了。 | Senapathi VENKATRAMANAN Thirunavukkarasu RAMKUMAR Irudhayanathan ANITHAMARY Govindaraj RAMESH | 2011 | International Journal of Sediment Research2011，26，4： | 2 |
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