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基于张衡一号卫星数据的中国区域岩石圈磁场球冠谐分析 被引量:1
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作者 王婕 申旭辉 +6 位作者 杨艳艳 泽仁志玛 黄建平 赵庶凡 王桥 鲁恒新 郭峰 《地球物理学报》 SCIE EI CAS CSCD 北大核心 2023年第7期2973-2982,共10页
张衡一号卫星于2018年2月成功发射升空,卫星上搭载有测量地磁场的高精度磁强计,包括标量和矢量磁力仪.本文基于张衡一号卫星2018年3月—2022年5月的标量磁测数据,利用球冠谐分析进行中国区域的岩石圈磁场建模工作.首先选取地磁活动平静... 张衡一号卫星于2018年2月成功发射升空,卫星上搭载有测量地磁场的高精度磁强计,包括标量和矢量磁力仪.本文基于张衡一号卫星2018年3月—2022年5月的标量磁测数据,利用球冠谐分析进行中国区域的岩石圈磁场建模工作.首先选取地磁活动平静时期(Kp≤2o)的夜侧数据,来减少外源场的影响;然后,利用CHAOS-7模型计算值去除主磁场和外源场,得到岩石圈磁异常值,再利用球冠谐分析进行中国区域的地磁场建模,得到最大阶数为53.17(对应地表波长为752 km)的球冠谐模型.该模型可以明显揭示出中国及邻区的主要岩石圈磁异常,包括位于我国塔里木盆地、四川盆地、松辽盆地和境外的贝加尔湖、孟加拉盆地附近的高值磁异常,以及位于青藏高原南部的东西向低值磁异常.为了对模型结果进行进一步分析,将其与Swarm-A卫星数据球冠谐建模结果和CHAOS-7球谐模型结果在不同高度上进行了对比,主要磁异常的分布基本一致,而且在向下延拓到100 km高度时,本文的模型也能够提供比较稳定的结果,但是在幅值和磁异常形态细节上存在一定差异. 展开更多
关键词 张衡一号 岩石圈磁场 长波长磁异常 球冠谐分析 区域地磁场建模
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张衡一号电磁卫星在轨情况及主要的科学成果 被引量:8
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作者 泽仁志玛 刘大鹏 +19 位作者 孙晓英 杨艳艳 赵庶凡 颜蕊 张振霞 黄河 杨德贺 王婕 楚伟 王桥 许嵩 胡云鹏 林剑 谭巧 黄建平 鲁恒新 郭峰 周娜 李文静 申旭辉 《地球与行星物理论评(中英文)》 2023年第4期455-465,共11页
张衡一号电磁卫星是中国地震立体观测体系的天基观测平台,其科学目标是获取全球电磁场、电离层等离子体、高能粒子数据,对中国及其周边开展电离层动态实时监测和地震前兆跟踪,弥补地面观测的不足,探索地震监测预测新途径.张衡一号电磁... 张衡一号电磁卫星是中国地震立体观测体系的天基观测平台,其科学目标是获取全球电磁场、电离层等离子体、高能粒子数据,对中国及其周边开展电离层动态实时监测和地震前兆跟踪,弥补地面观测的不足,探索地震监测预测新途径.张衡一号电磁卫星系列的第一颗试验卫星于2018年2月成功发射,现已在轨稳定运行4年多;第二颗同类电磁卫星将于2023年6月左右发射.在轨测试、交叉定标工作表明张衡一号电磁卫星具备良好数据质量.在科学产出方面,张衡一号卫星全球地磁场参考模型是全球地磁场参考模型(IGRF)构建一个多世纪以来,唯一由中国科学家牵头且唯一采用中国数据制作的全球地磁场参考模型;基于张衡一号的电离层电子密度3D模型很好地重现了电离层结构特征;张衡一号电磁卫星在地震等自然灾害、空间天气事件监测方面显示出了良好的响应能力;在圈层耦合机理方面,关于地震电磁波跨圈层传播全波计算方法能够计算出岩石圈-电离层波导及电离层中的电磁场变化,证实了张衡一号卫星电磁场载荷探测地震低频电磁异常的能力.张衡一号卫星能够反映岩石圈的地震、甚低频发射站、岩石圈磁异常、大气层的闪电等活动.科学研究结果表明张衡一号电磁卫星与其它观测结果一致,具备良好的数据质量,将为地球物理、空间物理等相关领域持续提供数据支撑. 展开更多
关键词 张衡一号 电磁卫星 在轨状态 数据质量 地球物理场模型 地震空间电磁异常 空间天气事件 岩石圈-大气层-电离层耦合机理
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Study of factors influencing the occurrence rate of 60 Hz power line radiation in the topside ionosphere:A systematic survey using the CSES satellite
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作者 MA ZhenHui ZHAO ShuFan +2 位作者 LIAO Li SHEN XuHui lu hengxin 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2024年第6期1879-1892,共14页
We analyze the topside ionosphere power line radiation(PLR)at 60 Hz over the US using electric field data collected by CSES satellite between January 2019 and December 2022.The study aimed to further investigate the m... We analyze the topside ionosphere power line radiation(PLR)at 60 Hz over the US using electric field data collected by CSES satellite between January 2019 and December 2022.The study aimed to further investigate the month-to-month variation characteristic of PLR occurrence rate observed by satellite and its several influencing factors,including solar radiation,lightning activity,and try to clarify the influence of electricity consumption.The results show that the solar radiation(solar zenith angle and F10.7)plays a major role in the variation of the PLR occurrence rate,and that there is no direct connection with the number of lightning.For the relationship between PLR occurrence rate and electricity consumption,the low occurrence rate associated with decreased weekend electricity consumption was not observed in the US.However,there is a significant difference in PLR occurrence rate between the East and West Coasts of the US at the same latitude during the same time period,suggesting that the significant difference in PLR occurrence rate is caused by the significant difference in electricity consumption between the two coasts.After excluding the effect of solar radiation on PLR occurrence rate,we concluded that only a significant difference in regional electricity consumption could lead to a corresponding change in PLR occurrence rate detected by the Low-Earth-Orbit satellite.Finally,we also found there is seasonal variation in the diurnal differences of the PLR occurrence rate caused by seasonal variation of the lower ionosphere. 展开更多
关键词 CSES satellite power line radiation occurrence rate solar radiation lightning activity electricity consumption
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基于光谱磁化率模型的黄土剖面地层划分
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作者 崔静 董新丰 +4 位作者 丁锐 张世民 王琮禾 鲁恒新 孙艳云 《国土资源遥感》 CSCD 北大核心 2018年第2期202-207,共6页
黄土剖面地层划分对于古地震研究具有重要意义,当前黄土地层的精细划分是一个薄弱环节。磁化率是土壤和沉积物的一个重要参数,能反映一定的沉积环境变化,常用来作为地层层序划分的标记。但离散的磁化率在反映黄土剖面地层结构空间展布... 黄土剖面地层划分对于古地震研究具有重要意义,当前黄土地层的精细划分是一个薄弱环节。磁化率是土壤和沉积物的一个重要参数,能反映一定的沉积环境变化,常用来作为地层层序划分的标记。但离散的磁化率在反映黄土剖面地层结构空间展布特征时,会出现以点带面、以偏概全的问题。本研究选取平原区一处剖面为例,利用高光谱遥感具有图谱合一,光谱分辨率高,可以定量反演地表物理化学参数,分析地表物理化学过程的特点,探索建立光谱与反映地层韵律变化的磁化率之间的光谱模型,并将其应用到黄土剖面上,进行黄土地层结构特征分析。研究结果表明,基于光谱特征建立的磁化率模型精度较高(R^2﹥0.95),其得到的剖面磁化率强度分布图较好地展示了地层结构空间展布特征,为黄土剖面地层划分提供了依据。 展开更多
关键词 高光谱 磁化率 黄土剖面地层划分
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张衡一号卫星三频信标载荷典型事件观测 被引量:2
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作者 鲁恒新 申旭辉 +6 位作者 赵庶凡 廖力 林剑 黄建平 泽仁志玛 孙芳 郭峰 《电波科学学报》 CSCD 北大核心 2022年第3期426-433,共8页
“张衡一号(简称ZH-1)”卫星搭载的三频信标机(tri-band beacon,TBB)载荷,能够对站链上空的电离层进行高精度测量.为检验TBB载荷在电离层监测中的应用效果,本文利用2018—2019我国中低纬地区TBB观测数据,采用求均值及多项式拟合的方法... “张衡一号(简称ZH-1)”卫星搭载的三频信标机(tri-band beacon,TBB)载荷,能够对站链上空的电离层进行高精度测量.为检验TBB载荷在电离层监测中的应用效果,本文利用2018—2019我国中低纬地区TBB观测数据,采用求均值及多项式拟合的方法对各月份F_(2)层峰值电子密度(N_(m)F_(2))数据进行处理,分析N_(m)F_(2)的半年变化特征;将2018-08-26磁暴当天与宁静日的电子密度作差值,分析电子密度对磁暴事件的响应特征.结果表明:TBB观测数据能够有效监测电离层变化,正确反映站链上空电离层变化规律;在磁暴事件中,观测到了电子密度的变化过程,其准确地反映了正暴相的特征,证明在重要天气事件中,这一手段能够获得较为准确的观测数据. 展开更多
关键词 张衡一号卫星 三频信标(TBB) 电子密度 电离层观测 磁暴
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Current Status and Main Scientific Results of In-flight CSES Mission 被引量:1
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作者 SHEN Xuhui ZEREN Zhima +14 位作者 HUANG Jianping YANG Yanyan ZHAO Shufan YAN Rui ZHANG Zhenxia LIU Dapeng WANG Qiao CHU Wei lu hengxin XU Song GUO Feng TAN Qiao LI Wenjing ZHOU Na SONG Fuxi 《空间科学学报》 CAS CSCD 北大核心 2020年第5期662-678,共17页
The CSES(China Seismo-Electromagnetic Satellite)is the electromagnetism satellite of China’s Zhangheng mission which is planned to launch a series of microsatellites within next 10 years in order to monitor the elect... The CSES(China Seismo-Electromagnetic Satellite)is the electromagnetism satellite of China’s Zhangheng mission which is planned to launch a series of microsatellites within next 10 years in order to monitor the electromagnetic environment,gravitational field.The CSES 01 probe(also called ZH-1)was launched successfully on 2 February 2018,from the Jiuquan Satellite Launch Centre(China)and is expected to operate for 5 years in orbit.The second probe CSES 02 is going to be launched in 2022.The scientific objectives of CSES are to detect the electromagnetic field and waves,plasma and particles,for studying the seismic-associated disturbances.To meet the requirements of scientific objective,the satellite is designed to be in a sun-synchronous orbit with a high inclination of 97.4°at an altitude around 507 km.CSES carries nine scientific payloads including Search-coil magnetometer,Electric Field Detector,High precision Magnetometer,GNSS occultation Receiver,Plasma Analyzer,Langmuir Probe,two Energetic Particle Detectors(including an Italian one),and Tri-Band Transmitter.Up to now,CSES has been operating in orbit for 2 years with stable and reliable performance.By using all kinds of data acquired by CSES,we have undertaken a series of scientific researches in the field of global geomagnetic field re-building,the ionospheric variation environment,waves,and particle precipitations under disturbed space weather and earthquake activities,the Lithosphere-Atmosphere-Ionosphere coupling mechanism research and so on. 展开更多
关键词 CSES mission Magnetic field model WAVES Particles LAIC Geomagnetic storm
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The CSES Mission and Its Preliminary Results 被引量:2
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作者 SHEN Xuhui ZEREN Zhima +16 位作者 YUAN Shigeng DAI Jianping HUANG Jianping ZHU Xinghong YANG Yanyan YAN Rui ZHAO Shufan LIU Dapeng ZHANG Zhenxia WANG Qiao CHU Wei lu hengxin XU Song GUO Feng TAN Qiao LI Wenjing ZHOU Na 《Aerospace China》 2020年第1期5-18,共14页
As the first satellite of the China national geophysical field observation series of stllite missions,the China Seismo--Electromagnetic Satellite(CSES)was designed upon an optimized CAST2000 platform for a sun synchro... As the first satellite of the China national geophysical field observation series of stllite missions,the China Seismo--Electromagnetic Satellite(CSES)was designed upon an optimized CAST2000 platform for a sun synchronous orbit.Onboard CSES,there are total eight types of scientific payloads including the Search-coil Magnetometer,Electric Field Detector,High Precision Magnetometer,GNSS Occupation Receiver,Plasma Analyzer,Langmuir Probe,Energetic Particle Detector Package,and a Three-band Transmitter to individually acquire the global eletromagnetic field,elec-tromagnetic waves,ionospheric plasma parameters as well as energetic particles.Up to now,CSES has been operating normally in orbit for 2 years.By using the various sensor data acquired by CSES,we have achieved scientfic research in the areas of the global geomagnetic field modeling,space weather,earthquake event analysis,the Lithosphere-Atmo-sphere-lonosphere coupling mechanism and so on.. 展开更多
关键词 CSES mission CSES IGFR 2020.0 LAIC space weather geomagnetic storm
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Current Status and Main Scientific Outcomes of the CSES Mission
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作者 ZEREN Zhima HUANG Jianping +21 位作者 LIU Dapeng YANG Yanyan YAN Rui ZHAO Shufan ZHANG Zhenxia LIN Jian CUI Jing CHU Wei WANG Qiao lu hengxin XU Song GUO Feng YANG Dehe ZHOU Na LIU Qinqin HUANG He WANG Jie TAN Qiao LI Wenjing LÜFangxian ZHU Keying SHEN Xuhui 《空间科学学报》 CAS CSCD 北大核心 2022年第4期550-564,共15页
This report briefly introduces the current status of the CSES(China Seismo-Electromagnetic Satellite)mission which includes the first satellite CSES 01 in-orbit(launched in February 2018),and the second satellite CSES... This report briefly introduces the current status of the CSES(China Seismo-Electromagnetic Satellite)mission which includes the first satellite CSES 01 in-orbit(launched in February 2018),and the second satellite CSES 02(will be launched in 2023)under development.The CSES 01 has been steadily operating in orbit for over four years,providing abundant global geophysical field data,including the background geomagnetic field,the electromagnetic field and wave,the plasma(in-situ and profile data),and the energetic particles in the ionosphere.The CSES 01 platform and the scientific instruments generally perform well.The data validation and calibration are vital for CSES 01,for it aims to monitor earthquakes by extracting the very weak seismic precursors from a relatively disturbing space electromagnetic environment.For this purpose,we are paying specific efforts to validate data quality comprehensively.From the CSES 01 observations,we have obtained many scientific results on the ionosphere electromagnetic environment,the seismo-ionospheric disturbance phenomena,the space weather process,and the Lithosphere-Atmosphere-Ionosphere coupling mechanism. 展开更多
关键词 CSES mission Satellite platform Scientific payloads Data validation Electromagnetic environment Seismic-ionospheric disturbance Space weather process
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益气化浊方联合常规西药治疗慢性肾脏病Ⅲ~Ⅳ期临床研究
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作者 鲁恒心 《新中医》 CAS 2020年第8期100-103,共4页
目的:观察益气化浊方联合常规西药治疗慢性肾脏病Ⅲ~Ⅳ期的临床疗效。方法:选取88例慢性肾脏病Ⅲ~Ⅳ期患者,按随机数字表法分为观察组45例与对照组43例,对照组给予前列地尔注射液治疗,观察组在对照组基础上给予益气化浊方治疗,疗程结束... 目的:观察益气化浊方联合常规西药治疗慢性肾脏病Ⅲ~Ⅳ期的临床疗效。方法:选取88例慢性肾脏病Ⅲ~Ⅳ期患者,按随机数字表法分为观察组45例与对照组43例,对照组给予前列地尔注射液治疗,观察组在对照组基础上给予益气化浊方治疗,疗程结束后比较2组临床疗效、中医证候积分及肾功能指标。结果:观察组临床总有效率为84.44%,对照组临床总有效率为62.79%,2组比较,差异有统计学意义(P<0.05)。治疗前,2组各项中医证候积分、血清尿素氮(BUN)、血清肌酐(SCr)、24 h尿蛋白定量(Upr)、尿酸(UA)、肾小球滤过率(eGFR)比较,差异无统计学意义(P>0.05)。治疗后,2组主症、次症积分较治疗前明显降低(P<0.05),观察组各项中医证候积分明显低于对照组(P<0.05);2组BUN、UA、SCr、Upr水平较治疗前均明显降低(P<0.05),观察组BUN、UA、SCr、Upr水平明显低于对照组(P<0.05),2组eGFR水平较治疗前明显提高,观察组eGFR水平高于对照组(P<0.05)。结论:益气化浊方联合常规西药治疗慢性肾脏病Ⅲ~Ⅳ期患者,有利于提高疗效,缓解临床症状,改善肾功能指标。 展开更多
关键词 慢性肾脏病 Ⅲ期 Ⅳ期 益气化浊方 前列地尔注射液 肾功能
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Detecting seismic electromagnetic ELF anomalies associated with the 2010 Yushu earthquake in China by DEMETER observations and ELF Lithosphere-Atmosphere-Ionosphere coupling propagating model
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作者 LIAO Li ZHAO ShuFan +3 位作者 SHEN XuHui ZEREN ZhiMa PENG HuaiYun lu hengxin 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2023年第4期1192-1202,共11页
Over the last century,abnormal electromagnetic(EM)emissions associated with earthquake(EQ)activities have been widely reported and recorded by ground-based and satellite observations.However,the frequency at which abn... Over the last century,abnormal electromagnetic(EM)emissions associated with earthquake(EQ)activities have been widely reported and recorded by ground-based and satellite observations.However,the frequency at which abnormal EM emissions have been detected varies.In addition,whether low Earth orbit(LEO)satellites can detect EM anomalies from EQs remains controversial.In this paper,we take the Yushu earthquake as an example to address these concerns by DEMETER satellite observations and a newly constructed lithosphere-atmosphere-ionosphere model of extremely low frequency(ELF)wave propagation.The results illustrate that the frequency of ELF EM anomalies of the Yushu earthquake is mainly at 200–400 Hz.The observations and simulations illustrate that the power-frequency curve of the ELF EM wave from an underground source has a peak power frequency at 200–400 Hz,which is significantly different from the ELF EM wave radiated from the ground source. 展开更多
关键词 seismic electromagnetic anomalies extremely low frequency(ELF)wave low Earth orbit(LEO)satellites lithosphereatmosphere-ionospheremodel
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Stability validation on the VLF waveform data of the China-Seismo-Electromagnetic Satellite 被引量:2
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作者 YANG DeHe ZHIMA ZeRen +8 位作者 WANG Qiao HUANG JianPing WANG XiuYing ZHANG ZhenXia ZHAO ShuFan GUO Feng CHENG WanLi lu hengxin SHEN XuHui 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2022年第12期3069-3078,共10页
The China-Seismo-Electromagnetic Satellite(CSES),which was launched in February 2018,carries the search coil magnetometer(SCM)and the electric field detector(EFD)to realize the high-resolution electromagnetic field an... The China-Seismo-Electromagnetic Satellite(CSES),which was launched in February 2018,carries the search coil magnetometer(SCM)and the electric field detector(EFD)to realize the high-resolution electromagnetic field and wave detection in the upper ionosphere.Due to the complexity and variability of the ionospheric environment,the stability of such a high sampling rate and high-precision electromagnetic field detection systems is always an essential link in data processing and the scientific application of CSES.This work evaluates the stability of the very-low-frequency(VLF)band detection by validating the systemic sampling-time differences between SCM and EFD in the VLF burst-mode observations.The optimal waveform data preprocessing method is put forward according to the noise levels of the VLF burst-mode observation and the inherent design characteristics of EFD.The VLF waveform data of EFD is rebuilt by filling the data gaps among the sampling sub-periods,making it with a similar sample length to SCM.Then by precisely intercepting the maximum and minimum values of the burst-mode waveforms,the variation of the sampling-time difference between EFD and SCM is statistically evaluated.Results show that during the three years'operation,the sampling-time difference between EFD and SCM predominately keeps below 0.5 s,indicating good stability of EFD and SCM on orbit.Then we developed an automatic synchronization tool based on the similarity function and STA/LTA(short time average over long time average)characteristic function.This tool can effectively realize the precise synchronization between SCM and EFD in the VLF burst-mode observation.This work is helpful to upgrade the data quality of CSES and provides technical support for electromagnetic wave propagation studies. 展开更多
关键词 STABILITY CSES EFD SCM sampling-time difference quasiperiodic waves
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