Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026515 |
Analysis of the Diurnal Variation of the Global Electric Circuit Obtained From Different Numerical Models | |
Jansky, Jaroslav1; Lucas, Greg M.2; Kalb, Christina3; Bayona, Victor4; Peterson, Michael J.3; Deierling, Wiebke2; Flyer, Natasha4; Pasko, Victor P.1 | |
2017-12-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:23 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | This work analyzes different current source and conductivity parameterizations and their influence on the diurnal variation of the global electric circuit (GEC). The diurnal variations of the current source parameterizations obtained using electric field and conductivity measurements from plane overflights combined with global Tropical Rainfall Measuring Mission satellite data give generally good agreement with measured diurnal variation of the electric field at Vostok, Antarctica, where reference experimental measurements are performed. An approach employing 85GHz passive microwave observations to infer currents within the GEC is compared and shows the best agreement in amplitude and phase with experimental measurements. To study the conductivity influence, GEC models solving the continuity equation in 3-D are used to calculate atmospheric resistance using yearly averaged conductivity obtained from the global circulation model Community Earth System Model (CESM). Then, using current source parameterization combining mean currents and global counts of electrified clouds, if the exponential conductivity is substituted by the conductivity from CESM, the peak to peak diurnal variation of the ionospheric potential of the GEC decreases from 24% to 20%. The main reason for the change is the presence of clouds while effects of Rn-222 ionization, aerosols, and topography are less pronounced. The simulated peak to peak diurnal variation of the electric field at Vostok is increased from 15% to 18% from the diurnal variation of the global current in the GEC if conductivity from CESM is used. |
英文关键词 | global electric circuit diurnal variation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419396500014 |
WOS关键词 | CLOUDS ; THUNDERSTORMS ; SOLVER ; FIELDS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34008 |
专题 | 气候变化 |
作者单位 | 1.Penn State Univ, Dept Elect Engn, Commun & Space Sci Lab, University Pk, PA 16802 USA; 2.Univ Colorado Boulder, Dept Aerosp Engn Sci, Boulder, CO USA; 3.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 4.Natl Ctr Atmospher Res, Inst Math Appl Geosci, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Jansky, Jaroslav,Lucas, Greg M.,Kalb, Christina,et al. Analysis of the Diurnal Variation of the Global Electric Circuit Obtained From Different Numerical Models[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(23). |
APA | Jansky, Jaroslav.,Lucas, Greg M..,Kalb, Christina.,Bayona, Victor.,Peterson, Michael J..,...&Pasko, Victor P..(2017).Analysis of the Diurnal Variation of the Global Electric Circuit Obtained From Different Numerical Models.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(23). |
MLA | Jansky, Jaroslav,et al."Analysis of the Diurnal Variation of the Global Electric Circuit Obtained From Different Numerical Models".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.23(2017). |
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