地球磁场对太阳风的加载响应与地震

地磁预报地震的方法越来越多,本文应用加卸载响应比方法,分析山西地区2009—2016年观测的加卸载响应比与山西地区4.0级地震之间的对应关系,初步给出适用于山西地区震例特征的磁异常判别指标。     

Relationship between North Pacific SST anomalies and the atmospheric circulation anomalies in January 2008

Based on the NCEP (National Centers for Environmental Prediction) data, the relationship between the Sea Surface Temperature Anomalies (SSTAs) in the North Pacific and the atmospheric circulation anomalies in January 2008 is analyzed in this study. The SSTA mode most correlated with the Geopotential Height anomalies (GHAs) in January 2008 in the North Pacific exhibited a basin-wide horseshoe pattern with a warm center in November 2007. This persistent SSTA pattern would induce positive GHAs in the Aleutian Low area and East Asia and the northward extension of the West Pacific Subtropical High in January 2008 by maximum diabatic heating in the atmosphere over the Kuroshio Oyashio Extension (KOE) area, leading to the occurence of the circumpolar trough-ridge wave train anomaly in January 2008.     

永清井水温多次畸变的跟踪研究

针对2017年12月30日开始永清地震台水温固体潮多次发生突升突降,而同井水位没有发生明显变化的情况,经过对比试验、注冷水试验、断电试验等一系列验证,认为永清井水温异常变化不是受干扰影响所致;通过水温的异常变化与地震对应关系分析,认为永清井水温异常可能与地震有关。     

上系列复混喷施肥的研制与应用

所研制的高钾系列复混喷施肥其成份以ＫＮＯ３为主,含微量营养元素,应用试验表明,该喷施肥具有成本低,肥效高,经济效益显著的特点,具有推广应用价值。     

CHARACTERISTICS OF ZONAL ANOMALY OF ANNUAL PRECIPITATION IN THE NORTHEASTERN CHINA

The characteristics of zonal anomaly and change rule of temporal distribution of annual precipitation in the northeastern China are revealed in this paper with EOF (Empirical Orthogonal Function) and REOF (Rotated Empirical Orthogonal Function) methods and results are drawn in the standard relief maps with GIS technology for practical application. Data used in the study were obtained from 208 meteorological stations over the northeastern China from 1961 to 2001. EOF results show that the first 3 loading vectors could give entire spatial anomaly structure of annual precipitation. In the Northeast Plain including the Songneng Plain and the Liaohe Plain, there is a regional compatibility (whether wet or dry) of annual precipitation change and this precipitation pattern has occurred since the late 1980s to the present. There also exist annual precipitation patterns of wet (or dry) in south and dry (or wet) in north and wet (or dry) in east and dry (or wet) in west. REOF results display 8 principal precipitation anomaly areas by the first 8 rotated loading vectors: the west plain, the Liaodong hills, the Sanjiang Plain, the Liaoxi hills,the Changbai Mountains, the Hulun Buir Plateau, the southwest plateau and the Liaodong Peninsula.     

利用目标区域拓扑关系图提取建筑物点云

以激光点云数据和倾斜多视影像为研究对象,提出了一种结合机载点云、地面点云及倾斜多视纹理的融合多源特征的建筑物三维模型重建方法。该方法结合点云面元以及影像边界特征,利用倾斜影像的线特征对顶面及立面模型进行边界规则约束,实现了面元自动拓扑重建;通过交互编辑完成不同复杂程度的建筑模型重建,并对模型进行纹理映射。实验结果表明,该方法能够有效提升城市建筑物三维模型重建的效率和边界精度,为利用多源数据的空地联合建筑物三维精细重建提供了一套切实可行的解决方案。     

东北亚地区MS6.0以上地震异常电磁波动研究

利用2005-01~2009-12 DEMETER电磁卫星详查模式下磁场与电场的极低频（ELF）三分量波形数据,选取东北亚地区（38°~58°N,105°~145°E）6个M_S≥6地震,对震前30 d震中上空±10°的6 000余条1130和1135轨道数据进行波矢分析和坡印廷矢量分析。结果发现,2005-08-16日本本洲东岸近海M_S7.2地震和2009-06-05日本北海道地区M_S6.6地震震前在质子回旋频率以下记录到来源于地球的异常电磁波扰动;2005-11-10俄罗斯西伯利亚东南部M_S6.4地震和2007-08-02俄罗斯萨哈林岛(库页岛)M_S6.8地震震前在质子回旋频率以下没有记录到异常电磁波扰动;2007-02-17日本北海道地区M_S6.2地震和2008-06-13日本本州东岸近海M_S7.3地震震前在质子回旋频率以下记录到异常电磁波扰动,但并非来源于地球。     

津巴布韦塔卡金矿地球化学异常特征及找矿标志

本文以津巴布韦塔卡金矿的区域地球化学资料为基础,对矿区地球化学特征、金成矿条件及找矿标志进行了分析,发现矿体主要赋存于元古宙Umkondo群的绢云石英片岩中,并受南北向区域构造控制。区内Au、W 、Hg 、Sb等异常共生组合元素,均可作为Au的找矿指示元素。通过对塔卡金矿的区域地质-地球化学异常特征和找矿标志的研究,建立了该金矿的地球化学异常模型及找矿标志,对已取得的1:25万区域化探异常的筛选和评价,以及进一步提高化探找矿效果,均具有一定的启示意义。