陕西三原县地热发育特征及成井条件

渭河盆地北缘地质构造相对简单,地热异常明显,储热层发育,有丰富的地热资源,具备地热井成井条件.分析了三原县地热发育的地质条件和热储层的形成,认为开发利用三原县城区的地热资源是切实可行的.     

高寒地区渠道防治冻害技术措施

依据黑龙江省水利科学研究院近20年来水工建筑物抗冻技术研究的主要成果,简述了高寒地区渠道防治冻害技术的主要内容,包括:抗冻胀设计参数的确定方法、渠道衬砌工程防治冻害技术措施的要点等,可供工程设计人员参考。     

含水率和添加剂对膨润土导热性能影响的研究

膨润土的热学性能是评价膨润土作为高放废物深地质处置库缓冲/回填材料的重要参数。高庙子膨润土矿床初步确定为我国缓冲/回填材料的供应基地,本研究以石英砂作为添加剂,通过实验获得了高庙子膨润土在不同含水率和不同砂含量时所对应的导热系数。结果表明,在相同压实条件下,导热系数随着含水率、石英砂含量的增加而增加。     

An analysis of heat index over Naples (Southern Italy) in the context of European heat wave of 2003

Two strong heat waves in the summer of 2003 determined elevated heat discomfort conditions all across the Western Europe. In this context, the analysis of hourly Heat Index values in the city of Naples (Southern Italy) showed prolonged heat discomfort conditions during the second half of June 2003 and from the second half of July 2003 up to the first week of September 2003, resulting in highest mortality rate for persons 75 years or more.     

Generic precursors to coastal earthquakes: Inferences from Denali fault earthquake

Recent research has shown evidence of strong coupling between the atmosphere and lithosphere in coastal regions, associating abnormal atmospheric phenomena to the occurrence of strong earthquakes. Surface latent heat flux (SLHF), total column water vapor (CWV), relative humidity (RH) and total ozone column (TOC), analyzed over the epicentral region of the Denali fault earthquake of November 3, 2002, exhibit anomalous behavior that could be related to the earthquake preparatory process and its occurrence. The complementary nature of the parameters provides strong support that the anomalous values were driven by lithospheric processes, rather than other atmospheric phenomena. Due to the wide availability of remote sensing observations of atmospheric parameters, the detection of anomalies can be used to mitigate the earthquake risks.     

水源热泵抽灌井布局及其运行过程中地下温度变化

本文以某水源热泵空调系统为例,建立了抽灌场地及周边地下水动力场与温度场的耦合数学模型,运用数值法求得系统运行过程中地下水的温度变化,分析了场地"热短路"效应和不同含水层中温度场的影响范围,以定量化的手段科学评价了场地抽灌井的布局及其可行性。分析结果表明,由于抽灌井之间的"热短路"程度较轻,场地的抽灌井布局可保证系统的高效运行。     

地源热泵土壤源换热器的施工技术

地源热泵（Ground Source Heat Pump，GSHP）作为最有发展潜力的热泵技术在各级政府的积极推窑下发壁迅速，但由于地源换热器施工安装成本高，技术的发展遇到了很大的阻力。探讨了土壤源换热器施工技术和土壤源换热器的热平衡问题，力图提高土源换热器施工技术，降低地源热泵成本，促进该技术的推广应用。     

Sea-breeze scaling from numerical model simulations,part II: Interaction between the sea breeze and slope flows

Numerical model simulations of sea-breeze circulations in the presence of idealized topography are subjected to dimensional analysis in order to capture the dynamics of the sea-breeze circulation combined with an upslope-flow circulation. A secondary objective is to reconcile previous results based on observations. The analysis is based on a scaling analysis of sea-breeze speed, depth and volume flux. This study is motivated by the fact that the literature of sea breezes interacting with upslope flows is generally qualitative. Results show clear scaling regimes and strong interaction between the two thermally driven circulations. We distinguish three regimes, depending on slope length, slope angle, stability and surface heat flux. The first and third regimes obey the scaling laws of pure sea-breeze scaling. The second regime shows a significant decrease in the scaled volume flux relative to pure sea-breeze scaling. Dynamical relations in the second regime show a strong influence on the circulation of upslope stable air advection.     

纵向岭谷作用下云南热量的时空特征

应用主分量分析(PCA)、统计分析及非整波求功率谱方法对云南省125站1971-2003年主要热量指标的时空特征及成因进行分析.结果表明:(1)纵向岭谷地形的"阻隔-通道"作用,使云南温度的纬向分布规律被破坏,经向分布规律比较明显,空间分布极不均匀;(2)纵向岭谷作用下云南热量地域分布差异显著,南部热量丰富,北部欠缺,西部比东部丰富,河谷地区热量最丰富,滇西北及山区热量最贫乏;(3)6、7月热量最丰沛,1月最为贫乏,春季热量好于秋季;(4)近30 a云南年平均气温有明显的上升趋势,存在明显的7 a、11 a、18 a周期振荡;(5)云南年平均气温具有大范围位相一致的变化趋势及东部冷(暖)与西部暖(冷)的变化类型.     

On the applicability of Kirchoff’s law and the principle of heat balance in thermal infrared remote sensing: A non-isothermal system

This paper proposes a basic equation of thermal radiation interaction between surface objects on the basis of the principle of heat balance in the interface. The solution of this equation takes account of the contribution of sensible heat flux and latent heat flux more completely, compared with traditional solution for surface cooling and heating processes. By the aid of the experimental data conducted in the Xiaotangshan experimental site, Beijing, both the non-applicability of Kirchoff’s law and the measurability of surface emissivity in a non-isothermal system have been highlighted. Two methods called ventilation and time-delay compensations have been proposed to reduce the error induced by change of surface temperatures of non-isothermal objects during the measurement of emissivity. Based on the solution of the basic equation, this paper has analyzed and pointed out the misunderstanding in comprehension and application of Kirchoff’s law published in literature.