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深井水位记震能力与地震预报

深井水位测得震级Mt与地震台网震级Ms的差值为记震能力Mst(Mst=Ms-Mt),它能反映地下应力场状况.3口井1 559次记震能力与实际发生地震的检验结果,用R值法评分得0.50,具97.5%置信水平;用 Wallen 法评分得0.54.3口井623个记震能力月度极大值与实际发生地震的检验结果,用R值法评分得0.42具97.5%置信水平;用 Wallen 法评分得0.42.用深井水位记震能力预报地震的实践证明,深井水位记震能力是一种有用的地震前兆预报方法.     

承压水井水位固体潮扩散方程的解和含水层参数的求定

本文在求解承压水井水位固体潮的扩散方程时增加了井孔压力的边界条件，使扩散方程更符合实际情况，从而得到在理论上更为完善的起潮力位与水位固体潮之间的关系式。文中讨论了气压作用于承压含水层的水力扩散方程和气压对水位固体潮的影响，导出了相位滞后与含水层参数的解析式，为求解含水层参数建立了基础。根据水位固体潮观测资料和气压观测资料，在给定地球模型的勒夫数的情况下，全面地解决了求定观测井含水层参数的方法，并给出了一个实际算例。     

数字化体应变与气压、水位相关性研究

通过对山东省体应变与气压，水位，温度等影响因素的相关性研究，以及对M2波潮汐因子均方差等参数的计算，得到了各台站的特征量值；基于不同井孔条件下资料变化的特点，探讨了气压，水位，温度等对各台站产生不同影响的物理机制。     

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Optimization of groundwater level monitoring network using GIS-based geostatistical method and multi-parameter analysis: A case study in Wainganga Sub-basin,India

Groundwater is one of the most important resources, its monitoring and optimized management has now become the priority to satisfy the demand of rapidly increasing population. In many developing countries, optimized groundwater level monitoring networks are rarely designed to build up a strong groundwater level data base, and to reduce operation time and cost. The paper presents application of geostatistical method to optimize existing network of observation wells for 18 sub-watersheds within the Wainganga Sub-basin located in the central part of India. The average groundwater level fluctuation (GWLF) from 37 observation wells is compared with parameters like lineament density, recharge, density of irrigation wells, land use and hydrogeology (LiRDLH) of Wainganga Sub-basin and analyzed stochastically in Geographic Information System (GIS) environment using simple, ordinary, disjunctive and universal kriging methods. Semivariogram analyses have been performed separately for all kriging methods to fit the best theoretical model with experimental model. Results from gaussian, spherical, exponential and circular theoretical models were compared with those of experimental models obtained from the groundwater level data. Spatial analyses conclude that the exponential semivariogram model obtained from ordinary kriging gives the best fit model. Study demonstrates that ordinary kriging gives the optimal solution and additional number of observation wells can be added utilizing the error variance for optimal design of groundwater level monitoring networks. This study describes the use of Geostatistics methods in GIS to predict the groundwater level and upgrade groundwater level monitoring networks from the randomly distributed observation wells considering multiple parameters such as GWLF and LiRDLH. The method proposed in the present study is observed to be an efficient method for selecting observation well locations in a complex geological set up. The study concludes that minimum 82 wells are required for proper monitoring of groundwater level in the study area.     

丹江口井网流体动态与尼泊尔M8.1地震同震响应分析

分析丹江口井网3口井水位、水温2013～2015年的观测数据,建立各个测项的正常动态,总结井网对2015-04-25尼泊尔M8.1地震的响应特征,探讨同震响应差异的可能原因,初步得到水位同震响应幅度与震级、井震距的关系。结果表明,井网水位年动态受降雨影响有一定规律,月正常动态普遍显示出固体潮效应与气压效应;水温年动态平稳,年变幅度在0.1 ℃左右。对于尼泊尔地震同震效应,唐扒井水位阶升-阶降式脉冲变化和水温陡降-缓升式脉冲变化是由水位和水温的变化机理不同导致的;雷庄井与唐扒井水位表现出不同的同震响应特征,判断与它们所处断裂的不同走向有关;盛湾井水温阶降型同震响应幅度较唐扒井小得多,可能是观测层岩性及地下水类型等差异导致的。     

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濮阳市地热资源分析及水文地质参数计算

本文搜集濮阳地区有关勘探资料和地热深井互阻、多孔抽水试验资料 ,通过综合分析、计算 ,阐述了濮阳市地热资源的地质背景并给出了水文地质参数 ,为濮阳市地热资源的合理开发提供基础地质依据     

降水层状水云的光学特性及其参数化

本文根据Mie散射理论计算了分别由7种不同谱分布构成的四种降水层状水云的单次散射反照率、不对称因子和削弱系数,给出它们的参数化公式,考虑的波长范围是0.3μm～4.7μm的太阳辐射。对光学厚度参数化公式用Stephons的列表数据进行了检验,结果表明拟合精度很高。     

数字压力式水位仪观测误差与测试方法

数字压力式水位仪误差来源于压力测量误差、水密度取值误差和重力加速度取值误差，其中后两者引起的误差与水柱高度有关。对我国地震井水位观测网的水密度和重力加速度取值误差进行分析，大部分观测井水密度和重力加速度取值误差引起的水位观测误差基本上可以忽略。为了减少仪器的观测误差，水位传感器投放深度不宜过深，水位观测井筒水温不宜过高。对于个别矿化度大、富气泡的观测井和水温较高的非自流井，密度影响不容忽视。最后，对近几年来招标采购的水位仪器的测试情况进行总结，认为采用压力输入法与模拟井孔法相结合来测试压力式水位仪器的观测误差更为科学和准确。