A NON-DIMENSIONAL COUPLED NUMERICAL MODEL OF ALLUVIAL FLOW

ＡＮＯＮ－ＤＩＭＥＮＳＩＯＮＡＬＣＯＵＰＬＥＤＮＵＭＥＲＩＣＡＬＭＯＤＥＬＯＦＡＬＬＵＶＩＡＬＦＬＯＷＳａｉｅｄＳＡＩＥＤＩ（ＴｈｅｔｅｘｔｉｓａｂｒｉｄｇｅｄｂｙＤｒ．ＤＩＮＧＬｉａｎｚｈｅｎ）（ＷａｔｅｒＲｅｓｅａｒｃｈＬａｂｏｒａｔｏｒｙ，Ｓｃ...     

COMPARISON OF SEDIMENT DISCHARGE PREDICTIONS FOR SMALL WATERSREDS IN THE SOUTRWESTERN UNITED STATES

ＣＯＭＰＡＲＩＳＯＮ　ＯＦ　ＳＥＤＩＭＥＮＴ　ＤＩＳＣＨＡＲＧＥ　ＰＲＥＤＩＣＴＩＯＮＳ　ＦＯＲ　ＳＭＡＬＬ　ＷＡＴＥＲＳＲＥＤＳ　ＩＮ　ＴＨＥ　ＳＯＵＴＲＷＥＳＴＥＲＮ　ＵＮＩＴＥＤ　ＳＴＡＴＥＳＹａｋｏｖＷＩＧＤＯＲ；ＶｉｃｅｎｔｅＬ．ＬＯＰＥＳ...     

Jin-Ping ZHOU,SERVICE AT GEOMAGNETIC OBSERVATORIES,AWARDED THE“LONG SERVICE MEDAL OF IAGA”

Ｊｉｎ┐ＰｉｎｇＺＨＯＵ，ＳＥＲＶＩＣＥＡＴＧＥＯＭＡＧＮＥＴＩＣＯＢＳＥＲＶＡＴＯ┐ＲＩＥＳ，ＡＷＡＲＤＥＤＴＨＥ“ＬＯＮＧＳＥＲＶＩＣＥＭＥＤＡＬＯＦＩＡＧＡ”Ｍｒ．Ｊｉｎ－ＰｉｎｇＺＨＯＵｗａｓｂｏｒｎｉｎＤｅｃ．１９３３．Ｈｅｇｒａｄｕａｔｅ...     

USING THE K_3 ROUGHNESS COEFFICIENT TO MEASURE THE SPATIAL AND TEMPORAL VARIABILITY OF ROUGHNESS ON RIVER BEDS

ＵＳＩＮＧＴＨＥＫ_３ＲＯＵＧＨＮＥＳＳＣＯＥＦＦＩＣＩＥＮＴＴＯＭＥＡＳＵＲＥＴＨＥＳＰＡＴＩＡＬＡＮＤＴＥＭＰＯＲＡＬＶＡＲＩＡＢＩＬＩＴＹＯＦＲＯＵＧＨＮＥＳＳＯＮＲＩＶＥＲＢＥＤＳ￥ＣａｒｍｅｎｄｅＪｏｎｇ（ＰｏｓｔｄｏｃｔｏｒａｌＦｅｌｌｏ?..     

APPLICATION OF RELIABILITY THEORY TO ASSESS THE INFLUENCE OF STOCHASTIC INPUT PARAMETERS ON DETERMINISTIC SEDIMENT TRANSPORT FORMULAS

ＡＰＰＬＩＣＡＴＩＯＮＯＦＲＥＬＩＡＢＩＬＩＴＹＴＨＥＯＲＹＴＯＡＳＳＥＳＳＴＨＥＩＮＦＬＵＥＮＣＥＯＦＳＴＯＣＨＡＳＴＩＣＩＮＰＵＴＰＡＲＡＭＥＴＥＲＳＯＮＤＥＴＥＲＭＩＮＩＳＴＩＣＳＥＤＩＭＥＮＴＴＲＡＮＳＰＯＲＴＦＯＲＭＵＬＡＳ￥Ｗｉｌｈｅｌｍ...     

MASINGA RESERVOIR IN KENYA：SEDIMENT DISCHARGE AND IMPLICATIONS FOR ITS CAPACITY

ＭＡＳＩＮＧＡＲＥＳＥＲＶＯＩＲＩＮＫＥＮＹＡ：ＳＥＤＩＭＥＮＴＤＩＳＣＨＡＲＧＥＡＮＤＩＭＰＬＩＣＡＴＩＯＮＳＦＯＲＩＴＳＣＡＰＡＣＩＴＹ￥Ｆ．Ａ．Ｏ．Ｏｔｉｅｎｏ（ＳｅｎｉｏｒＬｅｃｔｕｒｅｒｉｎＣｉｖｉｌＥｎｇｉｎｅｅｒｉｎｇ，Ｕｎｉｖｅｒｓｉ...     

ENVIRONMENTAL PERSPECTIVE：BENEFICIAL AND ADVERSE EFFECTS OF THREE GORGES PROZECT

ＥＮＶＩＲＯＮＭＥＮＴＡＬＰＥＲＳＰＥＣＴＩＶＥ：ＢＥＮＥＦＩＣＩＡＬＡＮＤＡＤＶＥＲＳＥＥＦＦＥＣＴＳＯＦＴＨＲＥＥＧＯＲＧＥＳＰＲＯＺＥＣＴＦＡＮＧＺｉｙｕｎ１．ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅＴｈｒｅｅＧｏｒｇｅｓＰｒｏｊｅｃｔ（ＴＧＰ）ｉｓａｖ...     

ENVIRONMENTAL IMPACT OF RIVER TRAINING WORKS IN EUROPE AND MITIGATION MEASURES

ＥＮＶＩＲＯＮＭＥＮＴＡＬＩＭＰＡＣＴＯＦＲＩＶＥＲＴＲＡＩＮＩＮＧＷＯＲＫＳＩＮＥＵＲＯＰＥＡＮＤＭＩＴＩＧＡＴＩＯＮＭＥＡＳＵＲＥＳＧｉａｍｐａｏｌｏＤｉＳＩＬＶＩＯ１１ＰｒｏｆｅｓｏｒｏｆＨｙｄｒａｕｌｉｃｓ,ＵｎｉｖｅｒｓｉｔｙｏｆＰａｄｕａ...     

MATHEMATICAL MODEL FOR SEDIMENT TRANSPORT CAPACITY OF HYPERCONCENTRATED FLOW

ＭＡＴＨＥＭＡＴＩＣＡＬＭＯＤＥＬＦＯＲＳＥＤＩＭＥＮＴＴＲＡＮＳＰＯＲＴＣＡＰＡＣＩＴＹＯＦＨＹＰＥＲＣＯＮＣＥＮＴＲＡＴＥＤＦＬＯＷＩＮＤＩＶＥＲＳＩＯＮＣＡＮＡＬＳ￥ＣＡＯＲｕｘｕａｎ；ＷＵＰｅｉａｎ；ＲＥＮＸｉａｏｆｅｎｇａｎｄＬＩＵＭｉｎｇ...     

THREE KINDS OF TIME DISTRIBUTION FUNCTIONS OF REMARKABLE EARTHQUAKES IN SEISMIC SEQUENCES

ＴＨＲＥＥＫＩＮＤＳＯＦＴＩＭＥＤＩＳＴＲＩＢＵＴＩＯＮＦＵＮＣＴＩＯＮＳＯＦＲＥＭＡＲＫＡＢＬＥＥＡＲＴＨＱＵＡＫＥＳＩＮＳＥＩＳＭＩＣＳＥＱＵＥＮＣＥＳＤｉａｏＳｈｏｕｚｈｏｎｇＷａｎｇＨｏｎｇｗｅｉＣｈａｏＨｏｎｇｔａｉＨｕａＡｉｊｕｎ（Ｓｅｉ...     

基于中国大陆5级以上地震重复性的年度地震预测及其效能检验

对中国大陆1971年以来发生的5级以上地震年度重复的空间特征进行分析研究,结果表明当中国大陆发生1个5级以上地震后,下一年度在该地震震中周围某一半径范围内,再次发生5级以上地震的概率非常高。利用统计研究结果,根据某一年发生的5级以上地震对下一年度进行地震预测,并对预测效能进行R值检验。文中还对1990年以来基于地震重复性的年度地震预测R值和我国实际年度地震预测R值进行比较,结果表明该方法是一种有效的年度地震预测方法,可以作为我国年度地震危险区的划分依据之一。     

地球自转及其和地球物理现象的联系：：Ⅱ.地极运动

地球自转运动包括岁差和章动，极移和日长的变化，极移指自转轴相对地壳的运动。其主要激发原因是地球上物质分布的变化。因而，对极移的观测和研究必然为全球性的地球物理现象提供着信息。     

云南强震的水位异常指标研究

为进行强震的年度预测,采取年变化率做为水位变化参量,大于或小于一定的年变化率值即为强震异常。在研究多年的强震前地下水位异常震例的基础上,在云南3个地震区分别确定了指标观测井及其强震的预测指标：丽江地震区选择丽江井,水位异常判定指标为年变化率R临≤-1.10;楚雄地震区为大姚井,指标是R临≥0.03;滇西南地震区为双江井...     

Lichens and the determination of river channel capacity

The identification of channel capacity associated with a particular frequency of peak discharges is necessary for discharge estimation for planning purposes at ungauged sites. Although lichen limits have been suggested to be useful for this purpose, previous studies have not elaborated their hydrological significance. Lichen limits are clearly defined on the sides of rock channels in New England. Australia and they are analyzed in relation to discharge at 6 gauging stations with up to 52 years of continuous record. It is demonstrated that the lowest lichen limit is maintained by peak discharges which occur on average at least once or twice each year. Recurrence intervals based on Annual Series and on Annual Exceedance Series are calculated and for the annual series are fairly consistent for the lowest lichen limit and range from 1·14 to 1·37 years. Lichenometry can be applied to the analysis of river channels in relation to the frequency of peak discharges. By reference to growth curves based upon lichens on Armidale tombstones it is shown that lichenometry may be employed to indicate dates for channel modification due to the removal of blocks and to dam construction and also to date the rock surface between lichen limits. Detailed analysis of the record from gauging stations indicates that where several lichen limits occur in a channel cross section each limit is related to periods when peak discharges exceeded the limits on at least 5 occasions. The lichen-free surfaces were then recolonized by Parmelia spp. and the size of the lichen thalli indicates the time elapsing since these frequent high discharges.     

四川汶川8．0级地震前山西昔阳地震台体应变特征和同震效应研究

该文对2008年5月12日四川汶川8．0级地震前山西昔阳地震台体积应变仪出现的异常变化进行了初步分析,结果表明,从3月29日出现的异常变化完全符合在实验研究岩石破裂时,主破裂前和破裂时显示出的突变变化特征。     

新沂台地电阻率观测实例的探讨及意义

新沂台三方向观测的地电阻率结果很不一致,客观地分析了造成这种不同的原因,指出了不同的年变往往是探测深度引起的,较深的探测深度具有更明显年变化量,它受干扰更小,更具前兆意义。合理的电性结构是场地选择时必须考虑的问题。     

Seasonal oscillations in mesospheric temperatures at low-latitudes

Using 3 years of high-quality temperature measurements (2002–2004) recorded from Maui, HI (20.8°N), we have investigated the characteristics of mesospheric seasonal oscillations at low-latitudes. Measurements of the near-infrared OH (6,2) and O₂ (0,1) nightglow emission layers (centered at 87 and 94 km) independently reveal a distinct semi-annual oscillation (SAO) and annual oscillation (AO) with amplitudes of 3.8 and 2.0 K, respectively. An observed asymmetry in the seasonal variation of the nocturnal mean, previously reported by Taylor et al. [2005. Characterization of the semi-annual-oscillation in mesospheric temperatures at low-latitudes. Advances in Space Research 35, doi:10.1016/j.asr.2005.05.111] from this site is shown to be due to a superposed AO of amplitude 50% of the SAO signature. Detailed investigations of the local-time variation of the SAO amplitude and phase combined with TIME-GCM simulations of the seasonal variation of the diurnal tide strongly suggest a large local-time dependence of the amplitude (but not phase) of the observed SAO. These data indicate that the true mean temperature SAO amplitude could be as high as 7 K at this latitude.     

山西地区小震活动年频次分布特征研究

对山西地区1970年至2008年的小震年频次分布用Klomogorov-Smirnov分布检验法进行检验,得出,山西地区的年频次累计次数与年频次有类似G-R的关系;由年频次分布随时间的变化关系分析,山西带及其北、中、南三个区域在中强震前,小震年频次的峰度、偏度、标准差、CV值、bm值等统计函数均表现出明显的变化。     

基于GPS和GRACE数据的三维地表形变的比较及地球物理解释

GPS技术能以高空间和高时间分辨率监测地表形变.但由于测量原理的不同,GPS监测的地表形变与GRACE存在差异.本文比较了ITRF2008-GPS残差序列与基于CSR的RL05版本的GRACE球谐系数的地表形变序列的差异.结果表明,GPS和GRACE的周年变化在高程方向上具有较好的一致性,但水平方向的差异明显.重点分析了影响GPS/GRACE地表形变差异(尤其是水平方向)的三个因素:不同GPS站时间序列间的不确定性,热弹性形变和区域形变.GPS站地表形变本身的不确定度在一定程度上导致了GPS/GRACE间的差异(特别是水平方向).结合热弹性形变理论指出,由温度变化引起的热弹性形变也是导致GPS/GRACE的南北方向差异的主要原因之一.因此利用GPS数据研究地表质量负载时,必须消除热弹性形变的影响.区域负载对GPS/GRACE水平方向差异的影响也是不可忽略的,特别是对欧洲区域.     

克孜尔水库跨断层形变年变特征分析

通过对克孜尔水库跨断层形变特征进行分析,结果显示:①垂直形变每年3～4月、10～11月分别为峰、谷值时间;水平形变每年6～7月、1月分别为峰、谷值时间.②垂直变形的峰-谷时间间隔在1997年之前多为5～8个月,1998年后多为1～3个月;谷-峰值时间间隔在1997年前多为4～7个月,1998年后多在8～11个月.水平形...