Ionospheric shock waves triggered by rockets

Lin, Chien Hung; Lin, Jeng-Feng; Chen, C. H.; Liu, J. Y.; Sun, Yihe; Kakinami, Yoshihiro; Matsumura, M.; Chen, W. H.; Liu, Huixin; Rau, R.

doi:10.5194/angeo-32-1145-2014

Cited by 31 publications

(50 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The phase velocities of this disturbances were 1.8-2.6 km s −1 , which is larger than the velocity of acoustic waves reported in previous studies. Lin et al (2014) observed also V-shaped TEC perturbations with periods of 100-600 s and velocities between 800-1200 m s −1 for the 2009 North Korea's Taepodong-2 and 2013 South Korea's Korea Space Launch Vehicle-II rocket launches. These disturbances were attributed to shock waves generated by the rocket's propulsive blasts.…”

Section: Introductionmentioning

confidence: 80%

Superimposed disturbance in the ionosphere triggered by spacecraft launches in China

Liu

2015

Ann. Geophys.

View full text Add to dashboard Cite

Abstract. Using GPS dual-frequency observations collected by continuously operating GPS tracking stations in China, superimposed disturbances caused by the integrated action of spacecraft's physical effect and chemical effect on ionosphere during the launches of the spacecrafts Tiangong-1 and Shenzhou-8 in China were firstly determined. The results show that the superimposed disturbance was composed of remarkable ionospheric waves and significant ionospheric depletion emerged after both launches. Meanwhile, we found for the first time that the ionospheric waves were made up of two periods of wave by wavelet analysis. The first period of ∼ 4 min shows one event in the near stations and two subevents in the few far stations. The second period of ∼ 9 min shows only one event in all the observed stations. Finally, the time characteristics for ionospheric waves and depletions were examined.

show abstract

Section: Introductionmentioning

confidence: 80%

Superimposed disturbance in the ionosphere triggered by spacecraft launches in China

Liu

2015

Ann. Geophys.

View full text Add to dashboard Cite

show abstract

“…The general features of the rocket triggered ionosphere disturbances generated by 2016 North Korea rocket launch with the southward trajectory are qualitatively similar to the disturbances generated by 2009 North Korea rocket launch with the eastward trajectory as reported in Lin et al . []. Model simulations applying energy exerted by exhaust plumes nicely reproduce these disturbance wave features in time rate change of ionospheric electron density qualitatively.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, there are numerous rocket launches around Asia regions providing opportunities for studying the ionospheric disturbances and waves triggered by rocket transits [e.g., Ozeki and Heki , ; Lin et al ., , ; Kakinami et al ., ; Ding et al ., ]. Using the two‐dimensional TEC maps constructed by ground‐based GPS receiver networks, Kakinami et al .…”

Section: Introductionmentioning

confidence: 99%

Observation and simulation of the ionosphere disturbance waves triggered by rocket exhausts

et al. 2017

View full text Add to dashboard Cite

Observations and theoretical modeling of the ionospheric disturbance waves generated by rocket launches are investigated. During the rocket passage, time rate change of total electron content (rTEC) enhancement with the V‐shape shock wave signature is commonly observed, followed by acoustic wave disturbances and region of negative rTEC centered along the trajectory. Ten to fifteen min after the rocket passage, delayed disturbance waves appeared and propagated along direction normal to the V‐shape wavefronts. These observation features appeared most prominently in the 2016 North Korea rocket launch showing a very distinct V‐shape rTEC enhancement over enormous areas along the southeast flight trajectory despite that it was also appeared in the 2009 North Korea rocket launch with the eastward flight trajectory. Numerical simulations using the physical‐based nonlinear and nonhydrostatic coupled model of neutral atmosphere and ionosphere reproduce promised results in qualitative agreement with the characteristics of ionospheric disturbance waves observed in the 2009 event by considering the released energy of the rocket exhaust as the disturbance source. Simulations reproduce the shock wave signature of electron density enhancement, acoustic wave disturbances, the electron density depletion due to the rocket‐induced pressure bulge, and the delayed disturbance waves. The pressure bulge results in outward neutral wind flows carrying neutrals and plasma away from it and leading to electron density depletions. Simulations further show, for the first time, that the delayed disturbance waves are produced by the surface reflection of the earlier arrival acoustic wave disturbances.

show abstract

“…The initial parameters at 15:00 UT of the second day are then used to initialize the SAMI3/ESF. Nevertheless, these impulsive waves displaying a nonlinear wave pattern (N-shape) in vertical TEC profiles (not shown) are likely associated with the shock waves (e.g., Astafyeva et al, 2013;Zettergren et al, 2017), which are commonly observed during the rocket ascending (e.g., Afraimovich et al, 2002;Chou et al, 2018;Ding et al, 2014;Kakinami et al, 2013;Lin et al, 2014;. The longitude is limited to 6°with periodic boundary conditions for computing the potential and is centered at 3°so the universal time and local time are the same.…”

Section: Sami3/esf Modelmentioning

confidence: 99%

Ionospheric Disturbances Triggered by SpaceX Falcon Heavy

Chou

Lin

Shen

et al. 2018

Geophysical Research Letters

View full text Add to dashboard Cite

SpaceX launched its Falcon Heavy demonstration mission at 20:45 UT on 6 February 2018 at NASA Kennedy Space Center in Florida. Short‐period northward propagating traveling ionospheric disturbances (TIDs) were observed following the shock waves in the ionospheric total electron content over East Florida‐Atlantic region. These TIDs have the periods of ~6–8 min, amplitude of ~0.05 total electron content unit, horizontal phase velocities of ~420–488 m/s, and horizontal wavelengths of ~164–240 km. They lasted for ~100 min and propagated a long distance of about 1,450 km, exhibiting a nearly coherent wave pattern and near‐constant phase velocity. The theoretical dispersion relation suggests that the short‐period TIDs were likely associated with the ducted gravity waves which became evanescent at altitudes around 170 km. Additional simulations were conducted in the Naval Research Laboratory SAMI3/ESF model using analytical expressions to approximate these gravity waves. Simulations reveal that modulations of the ionospheric electric fields through gravity wave wind dynamo perturbation can lead to weak ionospheric disturbances as observed.

show abstract

Ionospheric shock waves triggered by rockets

Cited by 31 publications

References 28 publications

Superimposed disturbance in the ionosphere triggered by spacecraft launches in China

Superimposed disturbance in the ionosphere triggered by spacecraft launches in China

Observation and simulation of the ionosphere disturbance waves triggered by rocket exhausts

Ionospheric Disturbances Triggered by SpaceX Falcon Heavy

Contact Info

Product

Resources

About