Effects of Rayleigh-Taylor instability and ionospheric plasma bubbles on the global navigation satellite System signal

Panda, Dibyashakti; Senapati, Batakrushna; Tyagi, Bhishma; Kundu, Bhaskar

doi:10.1016/j.jseaes.2018.11.006

Cited by 18 publications

(14 citation statements)

References 36 publications

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“…The Beirut explosion occurred around the sunset time, when strong ionospheric irregularities known as equatorial plasma bubbles (EPBs) often develop due to the Rayleigh–Taylor plasma instability and mask subtle changes in ionosphere 14 , 15 . Gentile et al 16 showed that rates of EPBs occurrence depends on seasons and regions (Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

Atmospheric wave energy of the 2020 August 4 explosion in Beirut, Lebanon, from ionospheric disturbances

Kundu

Senapati

Matsushita

et al. 2021

Sci Rep

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Atmospheric waves excited by strong surface explosions, both natural and anthropogenic, often disturb upper atmosphere. In this letter, we report an N-shaped pulse with period ~ 1.3 min propagating southward at ~ 0.8 km/s, observed as changes in ionospheric total electron content using continuous GNSS stations in Israel and Palestine, ~ 10 min after the August 4, 2020 chemical explosion in Beirut, Lebanon. The peak-to-peak amplitude of the disturbance reached ~ 2% of the background electrons, comparable to recently recorded volcanic explosions in the Japanese Islands. We also succeeded in reproducing the observed disturbances assuming acoustic waves propagating upward and their interaction with geomagnetic fields.

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Section: Resultsmentioning

confidence: 99%

Atmospheric wave energy of the 2020 August 4 explosion in Beirut, Lebanon, from ionospheric disturbances

Kundu

Senapati

Matsushita

et al. 2021

Sci Rep

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“…Dual frequency (φ 1 , 1,575.42 mHz and φ 2 , 1,227.60 mHz) measurements of pseudorange from the GPS satellites provide vital information about the ionospheric properties by estimating differential code and carrier phase measurements captured by the ground-based GPS receivers following the standard method (e.g., Afraimovich et al, 2001;Calais & Minster, 1995;Carrano & Groves, 2009;Heki and Ping, 2005;Kundu et al, 2018;Panda et al, 2013Panda et al, , 2019Reddy and Seemala, 2015). We computed the slant TEC (STEC) using the dual frequencies of the GPS satellites, broadcast navigation files and differential code biases from GPS satellite and ground-based receivers.…”

Section: Tec Processing Strategymentioning

confidence: 99%

Change in Total Electron Content During the 26 December 2019 Solar Eclipse: Constraints From GNSS Observations and Comparison With SAMI3 Model Results

et al. 2020

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We report spatiotemporal variation in the total electron content (TEC) in ionosphere caused by the 26 December 2019 annular solar eclipse, seen over most of the Southeast Asia. Sparsely distributed network of the Global Navigation Satellite System (GNSS) sites located on the continental parts and on islands documented the transhemispheric coellipse changes in the ionospheric electron density. A significant depletion in TEC of~6-8 TECU (1 TECU = 1 × 10 16 electrons m −2) is observed along the path of the eclipse shadow. Simulations using the SAMI3 model are consistent with the observations of TEC depletion. The model also predicted a magnetically conjugate region of marginal increased TEC of~0.2-0.3 TECU around northern Japan and adjacent Pacific Ocean, which is also consistent with the ground-based GNSS observations in that region.

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“…The existence of EPBs influences radio propagation and in turn induces ionospheric scintillations (Basu & Basu, 1981). Space‐to‐ground communication and global navigation satellite systems are also adversely affected and even disrupted (Panda et al., 2018; Seo et al., 2009). Hence, investigations on the spatiotemporal variability of EPB occurrence have attracted the interest of many researchers and are still a great challenge to date (Abdu, 2001; G. Li et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Impact of Anthropogenic Emission Changes on the Occurrence of Equatorial Plasma Bubbles

Zhou

Yue

Ren

et al. 2022

Geophysical Research Letters

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In this work, we examine the impact of increased anthropogenic emissions on equatorial plasma bubble (EPB) occurrence by modeling the growth rate of Rayleigh‐Taylor (R‐T) instability (γRT ${\gamma }_{RT}$), which is closely related to EPB generation. Using the global coupled ionosphere‐thermosphere‐electrodynamics model‐institute of geology and geophysics, Chinese Academy of Sciences model, γRT ${\gamma }_{RT}$ is calculated under three different CO2 emission levels. As CO2 increases, γRT ${\gamma }_{RT}$ significantly increases at low altitudes (<∼260 km) and decreases at high altitudes (>∼320 km). In the altitudes in between, γRT ${\gamma }_{RT}$ increases (decreases) before (after) midnight. Longitudinal variability of the γRT ${\gamma }_{RT}$ change is manifested apparently above ∼280 km, while it is insignificant for low altitudes. Term analysis revealed that changes in the gravity term and the electric‐field term are the main causes and that the neutral‐wind term is insignificant. The investigation indicates that increased anthropogenic emissions can change EPB occurrence and, in turn, the radio‐communication system and therefore influence modern technological systems, which is expected to be more serious in the future.

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Effects of Rayleigh-Taylor instability and ionospheric plasma bubbles on the global navigation satellite System signal

Cited by 18 publications

References 36 publications

Atmospheric wave energy of the 2020 August 4 explosion in Beirut, Lebanon, from ionospheric disturbances

Atmospheric wave energy of the 2020 August 4 explosion in Beirut, Lebanon, from ionospheric disturbances

Change in Total Electron Content During the 26 December 2019 Solar Eclipse: Constraints From GNSS Observations and Comparison With SAMI3 Model Results

Impact of Anthropogenic Emission Changes on the Occurrence of Equatorial Plasma Bubbles

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