Temporal and Spatial Characteristics of the Ionospheric Scintillation Event and the Influence on Communication in the Northern EIA Crest Region
-
摘要: 基于子午工程北大深圳站（22.59°N，113.97°E）电离层GPS双频接收机在2011年1月1日至2017年12月31日连续7年的长时间序列闪烁和TEC观测数据，分析不同太阳活条件下华南赤道异常北驼峰区观测到的GPS卫星L波段电离层闪烁事件时空分布特征及其对通信的影响.结果表明：GPS闪烁事件几乎都发生在夜间，且主要发生在春秋分月份；在不同太阳活动条件下，夜间GPS闪烁事件都主要发生在北驼峰区域靠近磁赤道的一侧，且GPS闪烁事件存在明显的东-西侧天区不对称性，即在台站西侧天区发生的闪烁事件明显偏多；在不同太阳活动条件下，弱闪烁事件伴随的TEC耗尽和卫星失锁事件比例相对较低，强闪烁事件则大部分都伴随着TEC耗尽和卫星失锁事件的发生.Abstract: The temporal and spatial variations of the ionospheric scintillation event and the influence on communication are studied using GPS measurements at Shenzhen station (Geographic latitude 22.59°N, Geographic Longitude 113.97°E, Geomagnetic Latitude 12.58°N) of Chinese Meridian Project, situated under the northern crest of the equatorial anomaly region, during the period from January 2011 to December 2017. The results show that: GPS scintillation events were largely a nighttime phenomenon, and most of the scintillation events were observed in equinox months; during different solar activity, scintillation events were mainly occurred at the inner edge of the northern crest of equatorial anomaly in China, and scintillation events are more probable to be observed in the west sector of the sky above Shenzhen station; during different solar activity, the weak scintillation events were relatively less accompanied by the TEC depletions and loss of lock on GPS signals, however, most of the strong scintillation events are accompanied by the TEC depletions and loss of lock on GPS signals.
-
Key words:
- Ionosphere /
- Scintillation event /
- Communication influence
-
[1] AARONS J, BASU S. Ionospheric amplitude and phase fluctuations at the GPS frequencies[J]. Inst. Navig., 1994, 1569-1578 [2] BASU S, BASU S, AARONS J, et al. On the coexistence of kilometer-and meter-scale irregularities in the nighttime equatorial F region[J]. J. Geophys. Res.:Space Phys., 1978, 83(A9):4219-4226 [3] FEJER B G, PAULA E R D, HEELIS R A, et al. Glo-bal equatorial ionospheric vertical plasma drifts measured by the AE-E satellite[J]. J. Geophys. Res.:Space Phys., 1995, 100(A4):5769-5776 [4] SU S Y, CHAO C K, LIU C H. On monthly/seasonal/longitudinal variations of equatorial irregula-rity occurrences and their relationship with the postsunset vertical drift velocities[J]. J. Geophys. Res.:Space Phys., 2008, 113(A5):1-16 [5] LIU Weifeng, HUANG Jiang, DENG Baichang, et al. Calculation analysis of ionospheric irregularity zonal drift velocity in Guangzhou based on GPS measurements[J]. Chin. J. Space Sci., 2012, 32(1):48-54(刘伟峰, 黄江, 邓柏昌,等. 基于GPS的广州地区电离层不规则体纬向漂移速度计算分析[J]. 空间科学学报, 2012, 32(1):48-54) [6] JI S, CHEN W, WANG Z, et al. A study of occurrence characteristics of plasma bubbles over Hong Kong area[J]. Adv. Space Res., 2013, 52(11):1949-1958 [7] DOHERTY P H, DELAY S H, VALLADARES C E, et al. Ionospheric scintillation effects on GPS in the equatorial and auroral regions[J]. Navigation, 2004, 50(4):235-245 [8] DAHLE C, ARNOLD D, JÄGGI A. Impact of tracking loop settings of the Swarm GPS receiver on gravity field recovery[J]. Adv. Space Res., 2017, 59(12):2843-2854 [9] GOSWAMI S, PAUL K S, PAUL A. Assessment of GPS multifrequency signal characteristics during periods of ionospheric scintillations from an anomaly crest location[J]. Rad. Sci., 2017, 52(9):1214-1222 [10] RAMA RAO P V S, TULASI RAM S, NIRANJAN K, et al. VHF and L-band scintillation characteristics over an Indian low latitude station, Waltair (17.7°N, 83.3°E)[J]. Ann. Geophys., 2005, 23(7):2457-2464 [11] DUTTA B, KALITA B R, BHUYAN P K. L-band nighttime scintillations at the northern edge of the EIA along 95°E during the ascending half of the solar cycle 24[J]. Adv. Space Res., 2018, 61(7):1744-1760 [12] SINGH A K, PATEL R P, SINGH R P. Statistical features of overhead ionospheric irregularities and its gene-ration mechanism at low latitude[J]. J. Atmos. Solar Terr. Phys., 2006, 68(10):1116-1124 [13] SU S. Y, LIU C. H, HO H. H, et al. Distribution charac-teristics of topside ionospheric density irregularities:linebreak Equatorial versus midlatitude regions[J]. J. Geophys. Res.:Space Phys., 2006, 111(A6). DOI: 10.1029/2005-JA011330 [14] FEJER B G, SCHERLIESS L,DE PAULA E R. Effects of the vertical plasma drift velocity on the generation and evolution of equatorial Spread F[J]. J. Geophys. Res.:Space Phys., 1999, 104(A9):19859-19869 [15] HUANG C S. Effects of the postsunset vertical plasma drift on the generation of equatorial spread F[J]. Prog. Earth Planet. Sci., 2018, 5(1):3 [16] LI G Z, NING B Q, YUAN H. Analysis of ionospheric scintillation spectra and TEC in the Chinese low latitude region[J]. Earth Planets Space, 2007, 59(4):279-285 [17] DENG B C, HUANG J, LIU W F, et al. GPS scintillation and TEC depletion near the northern crest of equato-rial anomaly over South China[J]. Adv. Space Res., 2013, 51(3):356-365 [18] ZOU Y H, WANG D L. A study of GPS ionospheric scintillations observed at Guilin[J]. J. Atmos. Solar Terr. Phys., 2009, 71(17/18):1948-1958 [19] ZOU Y H. Ionospheric scintillations at Guilin detected by GPS ground-based and radio occultation observations[J]. Adv. Space Res., 2011, 47(6):945-965 [20] HUANG L F, WANG J S, JIANG Y, et al. A study of GPS ionospheric scintillations observed at Shenzhen[J]. Adv. Space Res., 2014, 54(11):2208-2217 [21] HUANG Rongze, XU Jie, DENG Kun, et al. Statistical analysis of GPS scintillation and TEC depletion in temporal and spatial distributions over south China[J]. Chin. J. Space Sci., 2017, 37(4):414-423(黄荣泽, 徐杰, 邓琨, 等. 华南地区电离层闪烁与TEC耗空的时间和空间分布统计分析[J]. 空间科学学报, 2017, 37(4):414-423) [22] DUBEY S, WAHI R, GWAL A K. Ionospheric effects on GPS positioning[J]. Adv. Space Res., 2006, 38(11):2478-2484 [23] RAO P V S R, KRISHNA S G, NIRANJAN K, et al. Study of spatial and temporal characteristics of L-band scintillations over the Indian low-latitude region and their possible effects on GPS navigation[J]. Ann. Geophys., 2006, 24(6):1567-1580 [24] LI Jinghua, MA Guanyi. Effect of ionospheric irregularities on GPS performance[J]. Chin. J. Space Sci., 2013, 33(2):158-169(李婧华, 马冠一. 电离层不规则结构对GPS性能的影响[J]. 空间科学学报, 2013, 33(2):158-169) [25] WEBER E J, BASU S, BULLETT T W, et al. Equatorial plasma depletion precursor signatures and onset observed at 11° south of the magnetic equator[J]. J. Geophys. Res.:Space Phys., 1996, 101(A12):26829-26838 [26] WU Qi, YU Tao, LIN Zhaoxiang, et al. Night airglow observations to irregularities in the ionospheric F region over Hainan[J]. Chin. J. Geophys., 2016, 59(1):17-27 [27] MUELLA M T A H, PAULA E R D, JONAH O F. GPS L1-frequency observations of equatorial scintillations and irregularity zonal velocities[J]. Surv. Geophys., 2013, 35(2):335-357 -
-
计量
- 文章访问数: 2330
- HTML全文浏览量: 259
- PDF下载量: 313
-
被引次数:
0(来源:Crossref)
0(来源:其他)
下载:
