DOI: 10.1029/2018JA025685
Scopus记录号: 2-s2.0-85052794795
论文题名: Long-Term Estimation of Diurnal Vertical E × B Drift Velocities Using C/NOFS and Ground-Based Magnetometer Observations
作者: Habarulema J.B. ; Dubazane M.B. ; Katamzi-Joseph Z.T. ; Yizengaw E. ; Moldwin M.B. ; Uwamahoro J.C.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期: 8 起始页码: 6996
结束页码: 7010
语种: 英语
英文摘要: We report on the development of a new mathematical expression to estimate local daytime (0700–1700 LT) vertical E × B drift in low latitudes using a combination of ground-based magnetometer measurements and Communications and Navigation Outage Forecasting System (C/NOFS) satellite observations. The expression was developed over Jicamarca (11.8°S, 77.2°W; 0.8°N geomagnetic) and validated with Jicamarca Unattended Long-Term studies of the Ionosphere and Atmosphere (JULIA) mode and incoherent scatter radar (ISR) measurements during the period 2008–2014. The obtained correlation coefficient (R) values computed using observed and derived vertical E × B drift velocities are 0.79 and 0.84 for ISR and JULIA, respectively when data are available during 2008–2014. Storm-time comparison between observed and derived vertical E × B drift velocities agreed well with R of 0.92 and 0.87 during 5–8 August 2011 and 8–11 March 2012 geomagnetic storm periods for ISR and JULIA observations, respectively. Overall, we found that the developed expression is applicable in estimating vertical E × B drift response during quiet and geomagnetic storm periods. Based on these findings, we suggest that it is possible to develop accurate daytime global vertical E × B drift model over the equatorial latitude regions using inexpensive magnetometer observations and available satellite data. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113455
Appears in Collections: 气候减缓与适应
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作者单位: South African National Space Agency, Space Science, Hermanus, South Africa; Department of Physics and Electronics, Rhodes University, Grahamstown, South Africa; Institute for Scientific Research, Boston College, Lexington, MA, United States; Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States
Recommended Citation:
Habarulema J.B.,Dubazane M.B.,Katamzi-Joseph Z.T.,et al. Long-Term Estimation of Diurnal Vertical E × B Drift Velocities Using C/NOFS and Ground-Based Magnetometer Observations[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(8)