Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14001
Full metadata record
DC FieldValueLanguage
dc.contributor.authorJoshi L.M.-
dc.contributor.authorTsai L.-C.-
dc.contributor.authorSu S.-Y.-
dc.contributor.authorOtsuka Y.-
dc.contributor.authorYokoyama T.-
dc.contributor.authorYamamoto M.-
dc.contributor.authorSarkhel, Sumanta-
dc.contributor.authorHozumi K.-
dc.contributor.authorLu C.-H.-
dc.date.accessioned2020-10-15T12:36:22Z-
dc.date.available2020-10-15T12:36:22Z-
dc.date.issued2019-
dc.identifier.citationJournal of Geophysical Research: Space Physics (2019), 124(12): 10549-10563-
dc.identifier.issn21699380-
dc.identifier.urihttps://doi.org/10.1029/2019JA026839-
dc.identifier.urihttp://repository.iitr.ac.in/handle/123456789/14001-
dc.description.abstractSpatiotemporal characteristics of equatorial plasma bubble (EPB) have been studied based on Equatorial Atmosphere Radar (EAR) fan sector observations from Kototabang. EPBs were characterized as either locally generated (whose genesis and subsequent evolution was observed in the fan sector maps) or drifted type (which drifted into fan sector scans from west). Investigation of the radar echo spectral width indicated that the drifted EPB could be less evolving type. Height of the F layer in the postsunset period over Kototabang and Chumphon were examined in the two types. Average peak h′F was higher in locally generated EPB cases than in drifted EPB cases (by ~25 km), which is also found to be statistically significant. This scenario has been visualized in terms of a standing large-scale wave structure (LSWS) whose phase determine whether EPB will be seen evolving over EAR or drifted from a western longitude. Furthermore, low-latitude sporadic E (Es) variabilities in the two cases were also examined. Es indicated an inverse relation with the peak h′F (which depends on crest/trough of LSWS). These results have been discussed in the light of earlier works on spatial morphology of EPB clusters, particularly in context to the possible generation mechanism of LSWS by the spatial inhomogeneity in the low-latitude E region conductivity. Lesser occurrence of low-latitude Es in locally generated EPB cases also signifies the vital role of E region conductivity on Rayleigh-Taylor instability. These results highlight a need for networked spatial observation of low-latitude Es. ©2019. American Geophysical Union. All Rights Reserved.-
dc.language.isoen_US-
dc.publisherBlackwell Publishing Ltd-
dc.relation.ispartofJournal of Geophysical Research: Space Physics-
dc.subjectE-F region coupling-
dc.subjectequatorial plasma bubble-
dc.subjectF region irregularities-
dc.subjectlarge-scale wave structure-
dc.titleInvestigation of Spatiotemporal Morphology of Plasma Bubbles Based on EAR Observations-
dc.typeArticle-
dc.scopusid38361851600-
dc.scopusid7203034098-
dc.scopusid25946409700-
dc.scopusid56414179400-
dc.scopusid57031177600-
dc.scopusid9274833100-
dc.scopusid22981859800-
dc.scopusid57193885530-
dc.scopusid53865228400-
dc.affiliationJoshi, L.M., Center for Space and Remote Sensing Research, National Central University, Chung-Li, Taiwan-
dc.affiliationTsai, L.-C., Center for Space and Remote Sensing Research, National Central University, Chung-Li, Taiwan-
dc.affiliationSu, S.-Y., Center for Space and Remote Sensing Research, National Central University, Chung-Li, Taiwan-
dc.affiliationOtsuka, Y., Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan-
dc.affiliationYokoyama, T., Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan-
dc.affiliationYamamoto, M., Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan-
dc.affiliationSarkhel, S., Indian Institute of Technology Roorkee, Roorkee, India-
dc.affiliationHozumi, K., National Institute of Information and Communications Technology, Tokyo, Japan-
dc.affiliationLu, C.-H., Center for Space and Remote Sensing Research, National Central University, Chung-Li, Taiwan-
dc.description.fundingThe work was supported by grant MOST 106‐2111‐M‐008‐019 from the Ministry of Science and Technology, Taiwan, R.O.C. EAR data can be accessed through the data repository of Kyoto University, Japan. Kototabang and Chumphon ionogram data can be accessed through the data repository of National Institute of Information and Communications Technology (NICT), Japan. This work is also supported in part by the Ministry of Human Resource Development, Government of India.-
dc.description.correspondingauthorJoshi, L.M.; Center for Space and Remote Sensing Research, National Central UniversityTaiwan; email: lmjoshinarl@gmail.com-
Appears in Collections:Journal Publications [PH]

Files in This Item:
There are no files associated with this item.
Show simple item record


Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.