搜索结果: 1-10 共查到“大气科学 Cosmic”相关记录10条 . 查询时间(0.112 秒)
本文利用2009年1月—2011年12月共3年的COSMIC大气掩星观测数据与SABER/TIMED探测数据开展15~60 km大气温度数据的比较分析研究,计算COSMIC与SABER/TIMED探测温度的绝对偏差(TSABER-TCOSMIC),并统计其平均温度偏差和标准偏差,分析温度偏差随高度、纬度和季节的分布特征,为COSMIC大气掩星与SABER/TIMED探测数据的应用提供更多的参考依据...
利用COSMIC掩星弯曲角数据分析中国区域对流层顶结构变化
对流层顶 COSMIC GPS无线电掩星 弯曲角
2013/11/4
对流层顶是地球大气的一个最基本的结构特征,对流层与平流层通过对流层顶交换气团、水汽、微量气体、能量等.对流层顶结构变化与气候变化密切相连.本文采用掩星弯曲角自然对数协方差变换法确定对流层顶,利用气象、电离层与气候星座观测系统(Constellation Observing System for Meteorology, Ionosphere and Climate,COSMIC)2007年1月至2...
本文基于相对湿度廓线进入云层时的突变实现云底高反演的思想,采用2008年11月至2009年1月的COSMIC掩星湿空气数据反演全球云底高度,并与探空资料反演结果进行对比分析,得出以下重要结论：(1)当温度－40℃
Cosmic rays linked to rapid mid-latitude cloud changes
Cosmic rays rapid mid-latitude cloud changes
2010/11/30
The effect of the Galactic Cosmic Ray (GCR) flux on Earth's climate is highly uncertain. Using a novel sampling approach based around observing periods of significant cloud changes, a statistically ro...
Atmospheric data over a solar cycle: no connection between galactic cosmic rays and new particle formation
solar cycle galactic cosmic rays particle formation
2010/2/21
Aerosol particles affect the Earth's radiative balance by directly scattering and absorbing solar radiation and, indirectly, through their activation into cloud droplets. Both effects are known with c...
基于Global Positioning System (GPS)掩星数据在平流层具有较高准确性、稳定性的优势，本文尝试用新一代GPS掩星观测——the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC)资料验证不同卫星平台上先进的微波探测仪（AMSU）的平流层观测结果.通过COSMIC大...
COSMIC大气掩星开环数据反演方法
GPS掩星反演 开环数据处理 电波弯曲角 导航数据调制影响
2009/10/10
COSMIC星座GPS无线电掩星探测利用GPS开环接收技术提高低层大气观测数据的质量和对上升掩星事件的跟踪能力.开环掩星观测数据受到GPS导航数据调制的影响，在其数据后处理中必须消除该影响以获得高质量的科学反演结果.利用GPS导航数据调制码数据和利用开环数据本身内在的关系等两种方法可以消除该影响.将上述方法应用于COSMIC的掩星事件个例反演，获得了修复的大气附加相位数据；并利用几何光学近似反演方...
Global temperature estimates in the troposphere and stratosphere: a validation study of COSMIC/FORMOSAT-3 measurements
Global temperature estimates troposphere stratosphere COSMIC/FORMOSAT-3 measurements
2009/3/13
This paper mainly focuses on the validation of temperature estimates derived with the newly launched Constellation Observing System for Meteorology Ionosphere and Climate (COSMIC)/Formosa Satellite 3 ...
Formation of large NAT particles and denitrification in polar stratosphere: possible role of cosmic rays and effect of solar activity
large NAT particles polar stratosphere cosmic rays solar activity
2009/3/10
The formation of large nitric acid trihydrate (NAT) particles has important implications for denitrification and ozone depletion. Existing theories have difficulty in explaining the formation of large...
Aerosol nucleation over oceans and the role of galactic cosmic rays
Aerosol nucleation oceans galactic cosmic rays
2009/1/16
We investigate formation of sulfate aerosol in the marine troposphere from neutral and charged nucleation of H2SO4 and H2O. A box model of neutral and charged aerosol processes is run on a grid cover...