Effects of Plasma Density on the Spatial and Temporal Scale Sizes of Plasmaspheric Hiss

Shuai Zhang; I. Jonathan Rae; Kaijun Liu; Clare E. J. Watt; Quanqi Shi; Anmin Tian; Alexander W. Degeling; Ruilong Guo; Mengmeng Wang; Xiao Chen Shen; Fei Yao; Jing Chun Li

doi:10.1029/2023JA031955

Effects of Plasma Density on the Spatial and Temporal Scale Sizes of Plasmaspheric Hiss

Shuai Zhang, I. Jonathan Rae, Kaijun Liu^*, Clare E. J. Watt, Quanqi Shi, Anmin Tian, Alexander W. Degeling, Ruilong Guo, Mengmeng Wang, Xiao Chen Shen, Fei Yao, Jing Chun Li

^*Corresponding author for this work

Mathematics, Physics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The effects of plasma density on the plasmaspheric hiss amplitude and its spatial and temporal scale sizes are investigated using data from Van Allen Probes A and B. The plasmaspheric hiss amplitude and scale sizes are found to be more affected by the small-scale density variations than the overall density profile of the plasmasphere. In detail, our results suggest that both the hiss wave amplitude and its scale sizes are (a) related to the total electron density when the density is less than ∼1,000 cm⁻³; (b) independent of the total electron density when the density is greater than ∼1,000 cm⁻³; and (c) better correlated with the detrended density (removing the background plasmasphere density profile from the total electron density) regardless of the density value.

Original language	English
Article number	e2023JA031955
Number of pages	12
Journal	Journal of Geophysical Research: Space Physics
Volume	129
Issue number	3
Early online date	22 Mar 2024
DOIs	https://doi.org/10.1029/2023JA031955
Publication status	Published - Mar 2024

Keywords

plasmaspheric hiss

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10.1029/2023JA031955

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title = "Effects of Plasma Density on the Spatial and Temporal Scale Sizes of Plasmaspheric Hiss",

abstract = "The effects of plasma density on the plasmaspheric hiss amplitude and its spatial and temporal scale sizes are investigated using data from Van Allen Probes A and B. The plasmaspheric hiss amplitude and scale sizes are found to be more affected by the small-scale density variations than the overall density profile of the plasmasphere. In detail, our results suggest that both the hiss wave amplitude and its scale sizes are (a) related to the total electron density when the density is less than ∼1,000 cm−3; (b) independent of the total electron density when the density is greater than ∼1,000 cm−3; and (c) better correlated with the detrended density (removing the background plasmasphere density profile from the total electron density) regardless of the density value.",

keywords = "plasmaspheric hiss",

author = "Shuai Zhang and Rae, {I. Jonathan} and Kaijun Liu and Watt, {Clare E. J.} and Quanqi Shi and Anmin Tian and Degeling, {Alexander W.} and Ruilong Guo and Mengmeng Wang and Shen, {Xiao Chen} and Fei Yao and Li, {Jing Chun}",

year = "2024",

month = mar,

doi = "10.1029/2023JA031955",

language = "English",

volume = "129",

journal = "Journal of Geophysical Research: Space Physics",

issn = "2169-9380",

publisher = "American Geophysical Union",

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TY - JOUR

T1 - Effects of Plasma Density on the Spatial and Temporal Scale Sizes of Plasmaspheric Hiss

AU - Zhang, Shuai

AU - Rae, I. Jonathan

AU - Liu, Kaijun

AU - Watt, Clare E. J.

AU - Shi, Quanqi

AU - Tian, Anmin

AU - Degeling, Alexander W.

AU - Guo, Ruilong

AU - Wang, Mengmeng

AU - Shen, Xiao Chen

AU - Yao, Fei

AU - Li, Jing Chun

PY - 2024/3

Y1 - 2024/3

N2 - The effects of plasma density on the plasmaspheric hiss amplitude and its spatial and temporal scale sizes are investigated using data from Van Allen Probes A and B. The plasmaspheric hiss amplitude and scale sizes are found to be more affected by the small-scale density variations than the overall density profile of the plasmasphere. In detail, our results suggest that both the hiss wave amplitude and its scale sizes are (a) related to the total electron density when the density is less than ∼1,000 cm−3; (b) independent of the total electron density when the density is greater than ∼1,000 cm−3; and (c) better correlated with the detrended density (removing the background plasmasphere density profile from the total electron density) regardless of the density value.

AB - The effects of plasma density on the plasmaspheric hiss amplitude and its spatial and temporal scale sizes are investigated using data from Van Allen Probes A and B. The plasmaspheric hiss amplitude and scale sizes are found to be more affected by the small-scale density variations than the overall density profile of the plasmasphere. In detail, our results suggest that both the hiss wave amplitude and its scale sizes are (a) related to the total electron density when the density is less than ∼1,000 cm−3; (b) independent of the total electron density when the density is greater than ∼1,000 cm−3; and (c) better correlated with the detrended density (removing the background plasmasphere density profile from the total electron density) regardless of the density value.

KW - plasmaspheric hiss

UR - http://www.scopus.com/inward/record.url?scp=85188525488&partnerID=8YFLogxK

U2 - 10.1029/2023JA031955

DO - 10.1029/2023JA031955

M3 - Article

AN - SCOPUS:85188525488

SN - 2169-9380

VL - 129

JO - Journal of Geophysical Research: Space Physics

JF - Journal of Geophysical Research: Space Physics

IS - 3

M1 - e2023JA031955

ER -

Effects of Plasma Density on the Spatial and Temporal Scale Sizes of Plasmaspheric Hiss

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Keywords

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