Spectroscopic Redshift Determination for a Sample of Distant Quasars Detected by the SRG Observatory Based on RTT-150 Observations. II     

Bikmaev  I. F.  Irtuganov  E. N.  Nikolaeva  E. A.  Sakhibullin  N. A.  Gumerov  R. I.  Sklyanov  A. S.  Glushkov  M. V.  Khamitov  I. M.  Borisov  V. D.  Burenin  R. A.  Zaznobin  I. A.  Krivonos  R. A.  Lyapin  A. R.  Medvedev  P. S.  Meshcheryakov  A. V.  Sazonov  S. Yu.  Sunyaev  R. A.  Khorunzhev  G. A.  Gilfanov  M. R. 《Astronomy Letters》2021,47(5):277-290

Astronomy Letters - Results of the spectroscopic observations at the 1.5-m Russian–Turkish telescope for another group of 12 X-ray sources discovered by the eROSITA telescope onboard the SRG...  相似文献   

复杂城区车载激光扫描点云分层路段定位与数据纠正实验研究     

王胜利  郝国建  蒋毅  孙磊  杨红军 《测绘工程》2021,30(2):26-31

高精度的车载点云数据是实现各种城市地物要素提取的前提,但在复杂城市环境下车载作业时信号遮挡、衰减和多径效应频繁发生,进而造成点云数据精度严重降低,如何对复杂环境下的点云数据进行分析和纠正就显得至关重要.现有的质量分析方法多从测距误差、仪器安装误差和数据处理误差方面出发,虽然可以在一定程度上改化数据,但在如何快速定位出分...  相似文献   

线路上任意一点对应中桩平面坐标在统一模型中的计算     

郭瑾  高超英  张宇  叶慧英 《吉林地质》2006,25(4):56-60

本文给出了交通线路任意点对应中桩平面坐标计算的统一模型,并就直线段、圆曲线段、缓和曲线段三种线型具体展开,给出其理论公式和实际计算方法。  相似文献   

应用Supernatural GIS进行3维城市数据分区管理的方法研究     

张禹  孙晓野  王铁军 《测绘与空间地理信息》2007,30(2):23-25

探讨了3维城市数据管理的有关问题,基于3维GIS软件Supernatural GIS研究了3维城市模型大场景海量数据的分区管理、动态调度和快速显示问题,提出了应用Supernatural GIS实现城市3维可视化及大范围城市景观动态漫游的解决方案。  相似文献   

关于GeoMedia Professional坐标系统定义问题的探讨     

刘昱  陈联  沈略 《测绘与空间地理信息》2007,30(4):62-64

介绍了GeoMedia Professional软件在油田地面工程数字化工作中的应用,并针对设置工作空间、数据库、特征类的坐标系统时容易混淆的问题,及该问题引起的不同数据库之间的坐标系统不一致,以及一个数据库中个别特征类的坐标系统参数不正确的情况进行了分析,同时总结了操作过程中需要注意的问题及解决方法。  相似文献   

上海市城市网格化管理的技术实现     

王金诚  陈晓岚  翁矞 《测绘与空间地理信息》2007,30(4):71-77

城市网格化管理采用数字化网格管理的模式,本文阐述了上海市城市网格化管理的技术实现过程。  相似文献   

珊溪水库地震台阵建设     

尹晶飞  张明  汪贞杰  沈钰 《地震地磁观测与研究》2021,42(1):126-131

为更好地对珊溪水库地震震群进行监测和分析,浙江省地震局自2006年开始建设珊溪水库地震台阵.介绍了该环形小孔径台阵的勘选和建设过程,并结合2次地震震群活动的监测数据,展示了该台阵对地区性地震活动监测的效果.  相似文献   

Local Katabatic Winds of the Russian Federation and Their Observation Using Synthetic Aperture Radar Imagery     

Ivanov  A. Yu. 《Izvestiya Atmospheric and Oceanic Physics》2020,56(9):989-1006

Izvestiya, Atmospheric and Oceanic Physics - Data from synthetic aperture radars (SAR) provide new opportunities for observing and studying local katabatic winds (bora and foehn) over the seas in...  相似文献   

New Circulation Features in the Okhotsk Sea from a Numerical Model     

Fayman  P. A.  Prants  S. V.  Budyansky  M. V.  Uleysky  M. Yu. 《Izvestiya Atmospheric and Oceanic Physics》2020,56(6):618-631

Izvestiya, Atmospheric and Oceanic Physics - Using the eddy-permitting model, circulation in the Okhotsk Sea and in an adjacent area of the Pacific Ocean is retrospectively simulated from 1991 to...  相似文献   

SMAP卫星海表盐度产品的检验与校正     

秦思思  王辉  朱江  万莉颖  张宇  王昊运 《海洋学报(英文版)》2020,39(3):148-158

In this study, sea surface salinity(SSS) Level 3(L3) daily product derived from soil moisture active passive(SMAP)during the year 2016, was validated and compared with SSS daily products derived from soil Moisture and ocean salinity(SMOS) and in-situ measurements. Generally, the root mean square error(RMSE) of the daily SSS products is larger along the coastal areas and at high latitudes and is smaller in the tropical regions and open oceans. Comparisons between the two types of daily satellite SSS product revealed that the RMSE was higher in the daily SMOS product than in the SMAP, whereas the bias of the daily SMOS was observed to be less than that of the SMAP when compared with Argo floats data. In addition, the latitude-dependent bias and RMSE of the SMAP SSS were found to be primarily influenced by the precipitation and the sea surface temperature(SST). Then, a regression analysis method which has adopted the precipitation and SST data was used to correct the larger bias of the daily SMAP product. It was confirmed that the corrected daily SMAP product could be used for assimilation in high-resolution forecast models, due to the fact that it was demonstrated to be unbiased and much closer to the in-situ measurements than the original uncorrected SMAP product.  相似文献