太平洋尘埃的来源

在深海沉积物岩心中保存的风成尘埃提供了以往大气循环和大陆古气候的有价值指标．早期深海表层沉积物研究利用粘土和石英成分及岩石学特征的变化来推断物质来源和搬运机制．Biscaye(1965)和Zimmerman(1975)研究了大西洋粘土矿物．结果表明流水动力是大西洋深海沉积物中最重要的搬运机制。相反，     

湖湘红色资源融入医学高校思想政治教育的路径探讨

中医药植根于中国传统文化,中医药的发展离不开党和国家的大力扶持,中医药人才的培养需要继承与创新。将湖湘红色资源融入医学高校思想政治教育,有利于提升医学生的思想认同,而挖掘其中的红医资源,不仅能传承艰苦奋斗的红医精神,更能增强医学生的专业素养。目前湖湘红色资源融入医学高校思想政治教育存在认识度不高、形态单一的问题,可积极发掘湖湘红医资源,拓宽医学生的学习渠道、增强医学生的专业认同、培养医学生的高尚医德,引导医学生传承湖湘红色精神,培养具有医德仁心、不畏艰苦的医学人才,从而更好地发挥红色资源文化育人的作用。     

海洋上层暖水在热带气旋迅速增强中的作用:基于台风威马逊(1409)的个例研究

在登陆海南岛之前,台风威马逊在南海北部从热带风暴级别迅速增强成为超强台风。观测数据的分析结果显示,海洋上层的异常暖水在威马逊的迅速增强过程中扮演了重要的角色。威马逊期间,南海北部的海表面温度相比于气候态海表面温度暖很多。这部分异常暖水为威马逊提供了更多的能量,从而导致了威马逊的迅速增强。数值模拟结果进一步证明,南海北部的暖水在台风威马逊的迅速增强过程中起重要作用。如果没有这团异常暖水的影响,威马逊只增强25 hPa,仅为有暖水影响条件下增强程度的58.1%。     

Plastic particles in coastal pelagic ecosystems of the Northeast Pacific ocean

The purpose of this study was to examine the distribution, abundance and characteristics of plastic particles in plankton samples collected routinely in Northeast Pacific ecosystems, and to contribute to the development of ideas for future research into the occurrence and impact of small plastic debris in marine pelagic ecosystems. Plastic debris particles were assessed from zooplankton samples collected as part of the National Oceanic and Atmospheric Administration's (NOAA) ongoing ecosystem surveys during two research cruises in the Southeast Bering Sea in the spring and fall of 2006 and four research cruises off the U.S. west coast (primarily off southern California) in spring, summer and fall of 2006, and in January of 2007. Nets with 0.505 mm mesh were used to collect surface samples during all cruises, and sub-surface samples during the four cruises off the west coast. The 595 plankton samples processed indicate that plastic particles are widely distributed in surface waters. The proportion of surface samples from each cruise that contained particles of plastic ranged from 8.75 to 84.0%, whereas particles were recorded in sub-surface samples from only one cruise (in 28.2% of the January 2007 samples). Spatial and temporal variability was apparent in the abundance and distribution of the plastic particles and mean standardized quantities varied among cruises with ranges of 0.004-0.19 particles/m3, and 0.014-0.209 mg dry mass/m3. Off southern California, quantities for the winter cruise were significantly higher, and for the spring cruise significantly lower than for the summer and fall surveys (surface data). Differences between surface particle concentrations and mass for the Bering Sea and California coast surveys were significant for pair-wise comparisons of the spring but not the fall cruises. The particles were assigned to three plastic product types: product fragments, fishing net and line fibers, and industrial pellets; and five size categories: <1 mm, 1-2.5 mm, >2.5-5 mm, >5-10 mm, and >10 mm. Product fragments accounted for the majority of the particles, and most were less than 2.5 mm in size. The ubiquity of such particles in the survey areas and predominance of sizes <2.5 mm implies persistence in these pelagic ecosystems as a result of continuous breakdown from larger plastic debris fragments, and widespread distribution by ocean currents. Detailed investigations of the trophic ecology of individual zooplankton species, and their encounter rates with various size ranges of plastic particles in the marine pelagic environment, are required in order to understand the potential for ingestion of such debris particles by these organisms. Ongoing plankton sampling programs by marine research institutes in large marine ecosystems are good potential sources of data for continued assessment of the abundance, distribution and potential impact of small plastic debris in productive coastal pelagic zones.     

Late Quaternary diatom and sea level changes in estuarine plain of the Jiulong River

TheJiulongRiver,composedoftheWestStream,theNorthStreamandtheSouthStream(seeFig.1)isthesecondlargestriverinFujianProvince.ItsestuarineplainintervenesbetweenthetwqcitiesofXiamenandZhangzhou,withsouthern-subtropicoceanicmonsoonclimate-SofartherehasnotbeensystematicresearchontheLateQuaternarysea1evelchangesinthearea,andthispaperisintendedtodosomethingaboutit.DIAToMZoNESANDBIoFACIESOFZK5BoREHOLETheBoreholeZK5islocatedtothenortheastofHaichengTown,withcoordinateof24"24,32*N,ll7'5…     

疫情防控常态化下增强中医医院青年医务人员中医药文化自信研究

中医药是中华优秀传统文化的典型代表,同时也是“中国古代科学的瑰宝”,成为人们治疗疾病、健体强身、养生延年的重要手段,千百年来为维护人民群众身心健康、促进中华民族繁衍生息作出了突出贡献,具有重要的历史地位和时代价值。在抗击新冠肺炎疫情中,中医医务人员发挥了重要作用,体现了责任担当,交出了让人民满意的答卷,进一步增强了中医药文化自信。当今世界处于百年未有之大变局,全球疫情仍在蔓延,如何做好常态化疫情防控工作并夺取抗疫斗争全面胜利,是每个中医人应该思考的问题。疫情防控常态化下,中医医院应当加强青年医务人员理想信念和初心使命教育,筑牢中华优秀传统文化根基,强化中医药文化传播体系建设,推进中医药文化宣传创新。中医医院青年医务人员作为传承发展中医药的重要力量,应当坚定中医药文化自信,自觉担负起促进中医药传承创新发展的光荣任务与神圣使命。     

济南雷暴气候特征分析

通过对1971—2005年济南雷暴资料分析表明:济南雷暴的空间分布呈从西南向东北方向递增且市区少、郊区多的特点;上世纪70年代以来全市雷暴呈减少趋势,市区雷暴呈增多趋势;济南雷暴只发生在春、夏、秋三个季节,主要发生在夏季,冬季无雷暴,季节性明显;济南雷暴具有明显的日变化特征,下午到前半夜为雷暴活跃期。     

自动气象站采集器数据质量控制程序的改进设计

讨论自动气象站采集器的数据质量控制问题,以气温、风向、风速和降水量等4个代表性气象要素为例,提出自动气象站采集器数据质量控制程序的改进方案.在遵循向下兼容性、低运算量等要求下,改进设计在现有自动气象站采集器软件整体框架内进行.     

浅谈区域自动气象站与本地计算机的连接方法

阐述了在区域自动气象站没有专用计算机接口的情况下.实现区域自动气象站与本地计箅机的两种连接方法.供有需要的技术人员参考.     

山东省地震局数字科技信息平台建设与服务

从山东省地震局数字信息服务的沿革、数字科技信息网的建设、及对数字化信息资源建设与服务的再认识等方面,展示了山东省地震局数字科技信息服务平台。该平台突出防震减灾和地区特色,整合信息资源,建立了更加完备的数字化信息网站,全面提升了山东省地震局数字科技信息的服务水平,以全新的服务模式实现了全方位、多层次的数字化信息管理服务。