气候变化领域集成服务门户(CCPortal): Dilatory and Downward Development of 3-m Scale Irregularities in the Funnel-Like Region of a Rapidly Rising Equatorial Plasma Bubble

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DOI	10.1029/2020GL087256
	Dilatory and Downward Development of 3-m Scale Irregularities in the Funnel-Like Region of a Rapidly Rising Equatorial Plasma Bubble
	Tulasi Ram S.; Ajith K.K.; Yokoyama T.; Yamamoto M.; Hozumi K.; Shiokawa K.; Otsuka Y.; Li G.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:13
英文摘要	The equatorial plasma bubbles, once developed, grow nonlinearly into topside ionosphere, and simultaneous secondary instabilities lead to the development of shorter scale irregularities. The altitudinal growth and generation of smaller scale irregularities determine the spatio-temporal occurrence and the intensity of ionospheric scintillations at wide spectrum of radio waves and have significant implications on the GNSS/Satellite Based Augmentation Systems. In this letter, we present a unique equatorial plasma bubble observation from equatorial atmosphere radar that provides hitherto undisclosed evidence for the smaller (3-m) scale irregularities initially developing at higher altitudes and subsequently developing to lower altitudes in a narrow funnel-like structure. The responsible mechanisms for early development of shorter scale irregularities in the topside and their subsequent development at lower altitudes are discussed in light of difference between the time scales of altitudinal growth and cascading rate of secondary instabilities through high-resolution bubble model simulations. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Ionosphere; Ionospheric measurement; Augmentation systems; Equatorial atmosphere radar; Equatorial plasma bubble; High resolution; Ionospheric scintillation; Secondary instability; Spatio temporal; Top-side ionosphere; Plasma diagnostics; altitude; bubble; dilation; equatorial dynamics; GNSS; instability; ionosphere; radio wave; satellite altimetry; scale effect; spatiotemporal analysis
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170144
作者单位	Indian Institute of Geomagnetism, Navi Mumbai, India; Institute of Geology and Geophysics Chinese Academy of Sciences, Beijing, China; Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Japan; National Institute of Information and Communications Technology, Koganei, Japan; Institute for Sun-Earth Environmental Research, Nagoya University, Nagoya, Japan
推荐引用方式 GB/T 7714	Tulasi Ram S.,Ajith K.K.,Yokoyama T.,et al. Dilatory and Downward Development of 3-m Scale Irregularities in the Funnel-Like Region of a Rapidly Rising Equatorial Plasma Bubble[J],2020,47(13).
APA	Tulasi Ram S..,Ajith K.K..,Yokoyama T..,Yamamoto M..,Hozumi K..,...&Li G..(2020).Dilatory and Downward Development of 3-m Scale Irregularities in the Funnel-Like Region of a Rapidly Rising Equatorial Plasma Bubble.Geophysical Research Letters,47(13).
MLA	Tulasi Ram S.,et al."Dilatory and Downward Development of 3-m Scale Irregularities in the Funnel-Like Region of a Rapidly Rising Equatorial Plasma Bubble".Geophysical Research Letters 47.13(2020).