Fe作为重要的成岩元素之一,其月表含量和分布特征对于认识月球岩石成因和岩浆演化具有重要指示意义.本文由嫦娥二号γ谱仪2C级数据出发,经过谱线筛选、宇宙线校正、能谱累积与本底处理后提取Fe峰计数率.我们借助月球勘探者号的热中子数据进行中子校正,之后结合月球样品、陨石与嫦娥三号的就位探测数据标定Fe元素丰度.嫦娥二号γ谱仪全月Fe分布图中月海玄武岩区域与Fe元素富集区域吻合,其中风暴洋和雨海中部为Fe
Aerodynamic roughness length is an important physical parameter in atmospheric numerical models and micrometeorological calculations, the accuracy of which can affect numerical model performance and t
The atmospheric reanalysis datasets have been widely used to understand the variability of atmospheric water vapor on various temporal and spatial scales for climate change research. The difference am
Uncertainties in some key parameters in land surface models severely restrict the improvement of model capacity for successful simulation of surface-atmosphere interaction. These key parameters are re
Model simulation and in situ observations are often used to research water and carbon cycles in terrestrial ecosystems, but each of these methods has its own advantages and limitations. Combining thes
Temperature data from SABER/TIMED and Empirical Orthogonal Function(EOF) analysis are taken to examine possible modulations of the temperature migrating diurnal tide(DW1) by latitudinal gradients of z
46岁的方应华是武汉公交集团五公司715路驾驶员,参加工作15年来,无事故、无违章、无票违、无投诉,安全公里累计达55万,2012年被评为市劳模。他成功挑战"不可能",让劳模风采熠熠生辉。挑战气老虎三招虎变羊1392是715路武昌片车辆中最亏气的车,2014年1-5月平均亏气113立方。6月份,方应华主动挑战,接手这台气老虎车。一上车,他就发现了两个很隐蔽的地方有细微"冒、渗"现象:第一处低压表反
输变电工程研究所是中国电力行业内从事输变电工程机械力学领域科研、技术服务和试验检测的专业研究机构,是全国架空线路标准化技术委员会、中国电机工程学会输电专业委员会、中国钢结构协会塔桅钢结构分会的挂靠单位。输变电工程研究所主要业务范围包括杆塔结构研究与试验检测,导地线与金具研究、产品研发与试验检测,输电线路微风振动、次档距振荡、舞动防治,地基基础研究与试验检测,输变电构筑物及重要电气设施抗震减振研究、