区域震相强度比—岩石层热状态的有效指示

本文根据白家疃台６０年代以来的短周期地震记录图，分析了区域震相的强度比。研究表明：Ｓｎ／Ｌｇ波的强度比波传播路径上岩石层热结构、热状态及强地震活动等均有相关性，并就这种相关性对于强地震成因及其预测研究的直接意义进行了讨论。     

Selection of regional historical rainfall time series as input to urban drainage simulations at ungauged locations

It has become established practice during the past 20 years to use high-resolution historical rainfall time series as input to hydrological model packages for detailed simulation of urban drainage systems. However, sufficiently long rain series are rarely available from the exact catchment in question and simulations are hence often based on available rain series from other locations. Extreme rainfall properties of importance to the performance of urban storm drainage systems vary significantly even in regions with only minor physiographic differences. Part of this variation can be explained by regional variations of the mean annual rainfall and the remaining statistical residue can be interpreted as statistical uncertainty.In Denmark, more than 75 high-resolution rain gauges are installed across a total area of 43,000 m. About 40 gauges had sufficiently long records to be included in a comprehensive national investigation where newly developed statistical regionalisation procedures were used to model the regional variation of extreme rainfalls. On this basis, a spreadsheet model was made available for estimation of extreme design rainfalls and the associated uncertainty at any location in the country. Statistics were furthermore computed to classify historical rainfall time series according to the developed regional model, and this makes it possible to assess the uncertainty related with using different historical rain series for simulations at ungauged locations.This research indicates that use of historical point rainfall data at ungauged locations introduces a significant uncertainty that is largely overlooked in today's practice. The engineering recommendation is to select historical rain series based on an evaluation of the local physiographic characteristics (e.g., the mean annual rainfall) and a (pre-defined) desired safety level of the simulations.     

甘肃省区域化探方法技术和主要成果

20世纪 70年代末 ,微量元素分析技术的提高和区域化探工作方法的提出 ,为全国区域化探扫面奠定了基础。甘肃省自 1979年开始 ,到 2 0 0 1年止 ,根据不同的地球化学景观 ,采用不同的工作方法 ,完成了全省 4 0 4万km2 范围内的全部可工作区的 1∶2 0万区域化探工作 ,发现了大水等Au矿床 (田 )。甘肃省的Au高背景区域主要分布在西秦岭及祁连山西段 ,元素组合主要是Au、As、Sb、Hg、Ag、Pb、Cd、Bi、W、Mo、Cu、Zn等。通过对甘肃省区域化探 2 0余年走过的历程和取得的成果的综述与分析 ,在战略指导思想、方法技术对策、成绩成果评估和新世纪发展方向等方面进行了有益的探索和讨论。     

中国近海TOPEX/Poseidon卫星测高海平面变化的CPCA分析

用复主成分分析方法，对中国近海TOPEX／Poseidon卫星6年的测高的海平面变化资料进行了分析，给出了中国南海，黄海和东海的海平面变化的空间和时间分布特重征，利用小波方法分析了主要主成分时间变化序列的时－频特征，分析结果表明，主要主成分的空间分布特征与海洋环充相对应，南海，黄海和东海的海平面变化存在显著的年际和2个月的非稳态振荡信号，南海具有较明显的半年周期信号，而黄海和东海的半年周期信号不明显。     

区域趋势控制协变量回归分析效果评估方法研究

本文根据区域趋势控制和气象－物理协变量相关设计了三套非随机化人工增雨作业效果评估方案，个例作用区域趋势对比双比分析评估方案，区域趋势相关回归分析评估方案和气象－物理协变量多元回归分析评估方案，对河南省实例评估计算表明，利用物理协变量作为控制因子，可以提高作业区自然水量估计值的准确度，从而能提高随机化作业的效果评估效率。     

Modelling Regional Scale Surface Energy Exchanges And Cbl Growth In A Heterogeneous, Urban-Rural Landscape

Over the last decade, simple models of theconvective boundary layer (CBL) have beensuggested as an approach to inferring regionallyaveraged land-air exchanges of heat, water and tracegases, because the properties of the CBL respond toan average of the underlying small-scaleheterogeneity. This paper explores the use of anintegral CBL method to infer regionally averagedfluxes in a landscape that has at least three majorsources of heterogeneity – irrigated andnon-irrigated rural land use and a large urban area(Sacramento region, California).The first part of the paper assesses the validity ofthe simple slab model of the CBL – this isintegrated forwards in time using local-scalemeasured heat and water vapour fluxes, to predictmixed-layer depth, temperature and humidity. Of thefour different CBL growth schemes used, the Tennekesand Driedonks model is found to give the bestperformance. Evaluation of the model performancewith different weightings of heat and water vapourfluxes based on the land use characteristics in theregion suggest that the source area for theboundary-layer sonde measurements is larger thanphysically-based estimates would suggest.Finally, measured time series of potentialtemperature are used to infer regionally averagedsensible heat fluxes using an integral CBL (ICBL)method. These ICBL fluxes are compared with thosemeasured at the local scale over the three land usetypes that comprise the region of interest. They arefound to be closest to the heat fluxes calculated byappropriately weighting the measured heat fluxes inthe source area calculated for the ICBL. We concludethat the integral CBL budget method providesadequate estimates of regionally-averaged surfaceheat fluxes in a landscape that is characterised bysurface types with distinctly different surfaceenergy budgets.     

新世纪广西的区域开发与可持续发展

分析了广西的基本区情条件，揭示了广西区域开发格局的空间变动趋势，提出了广西新世纪实施可持续发展战略的举措，即加强以交通为主的基础设施建设，开发以洪水河为主的水能资源，加快建设成为南中国西南东输的枢纽；调整和优化产业结构，确立主导产业的市场地位，提升优势产业的市场竞争力；加快城乡转型的进程，提高城镇化的水平和质量，控制人口增长、提高人口质量，治理环境污染；制度创新， 优化经济布局的区域结构。     

区域站和基准站气溶胶的分析

文章讨论了秋季（1994年10月）和冬季（1995年1月）在中国西部青海省共和县瓦里关山（36°17′N，100°54′E，海拔3816 m）基准站和中国东北黑龙江省五常县的龙凤山（44°44′N，127°36′E，海拔331 m）及中国东南沿海的浙江省临安县的横畈乡（30°18′N，119°44′E，海拔131 m）两个区域本底站（上述3站均属WMO）所采集的气溶胶样品的质量浓度、可溶性离子浓度的时空分布特征和变化规律。初步得出:气溶胶质量浓度和可溶性离子浓度以临安为最高。其次是龙凤山，而瓦里关山为最低     

1990年景泰6.2级地震前后甘肃东南部地区的区域异常——地震前兆与后效区分

在分析地震活动性，地壳形变和其它前兆资料基础上指出，１９９０年景泰６．２级地震前后甘肃东南部地区的区域异常具有变化速率小，起始时间不同步，异常反央的力学性质不一致等特征，其中以异常变化速率小了为显著。     

区域持续发展的理论基础—陆地系统科学

对区域持续发展的研究是持续发展深化的必由之路。区域持续发展研究的理论基础是对地球表层自然与人文各种要素的综合规律的揭示，即陆地系统科学。对持续发展广泛深入地研究既是地理科学责无旁贷的任务，也可促进其进一步发展。