Propagation of Fast Coronal Mass Ejections and Shock Waves Associated with Type II Radio-Burst Emission: An Analytic Study

Corona‐Romero, P.; González-Esparza, A.; Aguilar-Rodríguez, E.

doi:10.1007/s11207-012-0103-9

Cited by 15 publications

(18 citation statements)

References 62 publications

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“…Corona‐Romero and Gonzalez‐Esparza [] extended the original piston shock model by including geometrical and physical missing effects by assuming that driven shocks have bow shock geometry. Subsequently, Corona‐Romero et al [] validated this extended model by approximating the synthetic type II radio bursts and the CME shock arrivals of some fast, radio‐loud halo CMEs. Afterward, Corona‐Romero et al [] combined the piston shock's hypothesis and type II radio bursts to reconstruct fast CMEs/shocks trajectories and arrivals.…”

Section: Development Of a Cme Arrival Forecasting Toolmentioning

confidence: 99%

“…Free parameters are different from those inputs that can be settled through remote sensing or in situ data. Instead, free parameters need to be adequately selected or empirically fitted, in order to reproduce the CMEs or shocks trajectories and arrivals [e.g., Gopalswamy et al , , ; Reiner et al , ; Cremades et al , ; Corona‐Romero et al , ; Hess and Zhang , ; Corona‐Romero et al , ; Cremades et al , ; Corona‐Romero and Gonzalez‐Esparza , ]. The arbitrary selection of free parameters allows for the approximation of trajectories and in situ arrivals of CMEs.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, free parameters are commonly associated with elemental physical properties of the CME‐solar wind dynamic coupling. For example, the distance (time) at which CMEs/shocks no longer accelerate [ Gopalswamy et al , , ; Reiner et al , ], the drag coefficient, or viscosity in hydrodynamic drags [ Vršnak , ; Vršnak and Gopalswamy , ; Cargill , ; Poomvises et al , ; Vršnak et al , ], and inertia and geometry of CMEs [ Cargill , ; Corona‐Romero et al , ; Corona‐Romero and Gonzalez‐Esparza , ]. Thus, on the one hand, free parameters are inputs that allow models to reproduce the desired results.…”

Section: Introductionmentioning

confidence: 99%

“…However, its results depend on the arbitrary selection of a free parameter's value. Nevertheless, there is evidence that suggests the presence of an empirical relationship between that free parameter and model's inputs [ Corona‐Romero et al , ; Corona‐Romero and Gonzalez‐Esparza , ]. If such relationship can be confirmed, it will allow the use of the piston shock model to predict in situ arrivals of CMEs from the detection of the event.…”

Section: Introductionmentioning

confidence: 99%

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Calculating travel times and arrival speeds of CMEs to Earth: An analytic tool for space weather forecasting

et al. 2017

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Coronal mass ejections (CME) are one of the most important phenomena derived from solar activity that potentially perturb space weather of Earth. In this work we present a semiempirical arrival forecasting tool for Earth‐directed halo CMEs. This tool combines the piston shock model and an empirical relationship to estimate in situ arrivals of halo CMEs. The empirical relationship uses the initial conditions of CMEs to calculate the value of free parameter of the piston shock model, a parameter which is closely related to the initial inertia of CMEs. Such a value will let the model to simultaneously approximate the travel time and arrival speed of CMEs (i.e., CME arrivals). We test the forecasting capabilities of our model and its empirical relationship by calculating the arrivals of 40 halo CMEs detected during the period of 1995–2015. Our results indicate that, together, the piston shock model and its empirical relationship approximate CME arrivals with average errors of 7 h for travel times, and 100 km s−1 for arrival speeds. Our results show that our model is suitable for arrival forecasting of isolated events propagating through quiet interplanetary medium.

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Section: Development Of a Cme Arrival Forecasting Toolmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Calculating travel times and arrival speeds of CMEs to Earth: An analytic tool for space weather forecasting

et al. 2017

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“…In fact, Feng et al (2010) empirically concluded that many of in situ-detected (at 1 AU) IP shocks already evolve as blast waves. Furthermore, Pinter and Dryer (1990) and Corona-Romero, Gonzalez-Esparza, and Aguilar-Rodriguez (2013) independently found that trajectories of IP shocks are well described by blast wave propagation for heliocentric distances larger than ∼ 25 − 45 R ⊙ . Then, for the purposes of this work, we will assume that trajectories of IP shocks can be approximated by blast wave equation.…”

Section: Introductionmentioning

confidence: 97%

Kinematics of ICMEs/Shocks: Blast Wave Reconstruction Using Type-II Emissions

et al. 2015

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We present a physical methodology to reconstruct the trajectory of interplanetary shocks using type II radio emission data. This technique calculates the shock trajectory assuming that the disturbance propagates as a blast wave in the interplanetary medium. We applied this Blast Wave Reconstruction (BWR) technique to analyze eight fast Earth-directed ICMEs/shocks associated with type II emissions. The technique deduces a shock trajectory that reproduces the type II frequency drifts, and calculates shock onset speed, shock transit time and shock speed at 1 AU. There were good agreements comparing the BWR results with the type II spectra, with data from coronagraph images, in situ measurements, and interplanetary scintillation (IPS) observations. Perturbations on the type II data affect the accuracy of the BWR technique. This methodology could be applied to track interplanetary shocks causing TII emissions in realtime, to predict the shock arrival time and shock speed at 1 AU.

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Development of a formalism for computing transits of Earth-directed CMEs, plasma sheaths, and shocks. Towards a forecasting tool

Corona‐Romero

González-Esparza

2016

Advances in Space Research

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Propagation of Fast Coronal Mass Ejections and Shock Waves Associated with Type II Radio-Burst Emission: An Analytic Study

Cited by 15 publications

References 62 publications

Calculating travel times and arrival speeds of CMEs to Earth: An analytic tool for space weather forecasting

Calculating travel times and arrival speeds of CMEs to Earth: An analytic tool for space weather forecasting

Kinematics of ICMEs/Shocks: Blast Wave Reconstruction Using Type-II Emissions

Development of a formalism for computing transits of Earth-directed CMEs, plasma sheaths, and shocks. Towards a forecasting tool

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