Advanced search
Start date
Betweenand

Yogeshwar Sahai

CV Lattes ResearcherID


Universidade do Vale do Paraíba (UNIVAP). Instituto de Pesquisa e Desenvolvimento (IP&D)  (Institutional affiliation for the last research proposal)
Birthplace: Índia

Graduate (B. Sc) from University of Allahabad, India (1957), M Sc Technology from University of Allahabad, India (1960) and Ph.D. in Física Aplicada from University of Allahabad, India (1966). At present working as professr in the Department of Physics and Astronomy, University of Paraiba Valley, S.J.Campos. Has more that 49 years of experience iin teaching and research in Geosciences, focusing on Aeronomy, at present involved mostly in the following subjects: ionospheric F-region in equatorial and low-latitude regions in the Brazilian sector, airglow, space weather, etc.. (Source: Lattes Curriculum)

Research grants
Scholarships in Brazil
FAPESP support in numbers * Updated October 12, 2019
Total / Available in English
Contact researcher

Use this Research Supported by FAPESP (BV/FAPESP) channel only to send messages referring to FAPESP-funded scientific projects.


 

 

 

 

Keywords used by the researcher
Scientific publications resulting from Research Grants and Scholarships under the grantee's responsibility (14)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

Publications11
Citations193
Cit./Article17.5
Data from Web of Science

DE JESUS, R.; SAHAI, Y.; GUARNIERI, F. L.; FAGUNDES, P. R.; DE ABREU, A. J.; BITTENCOURT, J. A.; NAGATSUMA, T.; HUANG, C. -S.; LAN, H. T.; PILLAT, V. G.. Ionospheric response of equatorial and low latitude F-region during the intense geomagnetic storm on 24-25 August 2005. Advances in Space Research, v. 49, n. 3, p. 518-529, . Web of Science Citations: 14. (07/07842-6)

FAGUNDES, P. R.; KLAUSNER, V.; BITTENCOURT, J. A.; SAHAI, Y.; ABALDE, J. R.. Seasonal and solar cycle dependence of F3-layer near the southern crest of the equatorial ionospheric anomaly. Advances in Space Research, v. 48, n. 3, p. 472-477, . Web of Science Citations: 15. (08/05482-5)

KORENKOV, Y. N.; KLIMENKO, V. V.; KLIMENKO, M. V.; BESSARAB, F. S.; KORENKOVA, N. A.; RATOVSKY, K. G.; CHERNIGOVSKAYA, M. A.; SHCHERBAKOV, A. A.; SAHAI, Y.; FAGUNDES, P. R.; et al. The global thermospheric and ionospheric response to the 2008 minor sudden stratospheric warming event. JOURNAL OF GEOPHYSICAL RESEARCH, v. 117, . Web of Science Citations: 27. (08/05482-5)

DE JESUS, R.; SAHAI, Y.; GUARNIERI, F. L.; FAGUNDES, P. R.; DE ABREU, A. J.; BECKER-GUEDES, F.; BRUNINI, C.; GENDE, M.; CINTRA, T. M. F.; DE SOUZA, V. A.; et al. Effects observed in the ionospheric F-region in the South American sector during the intense geomagnetic storm of 14 December 2006. Advances in Space Research, v. 46, n. 7, p. 909-920, . Web of Science Citations: 27. (07/07842-6)

MUELLA, M. T. A. H.; DE PAULA, E. R.; FAGUNDES, P. R.; BITTENCOURT, J. A.; SAHAI, Y.. Thermospheric Meridional Wind Control on Equatorial Scintillations and the Role of the Evening F-Region Height Rise, E x B Drift Velocities and F2-Peak Density Gradients. SURVEYS IN GEOPHYSICS, v. 31, n. 5, p. 509-530, . Web of Science Citations: 11. (08/05482-5, 08/04892-5)

DE JESUS, R.; SAHAI, Y.; FAGUNDES, P. R.; DE ABREU, A. J.; BRUNINI, C.; GENDE, M.; BITTENCOURT, J. A.; ABALDE, J. R.; PILLAT, V. G.. Response of equatorial, low- and mid-latitude F-region in the American sector during the intense geomagnetic storm on 24-25 October 2011. Advances in Space Research, v. 52, n. 1, p. 147-157, . Web of Science Citations: 12. (11/21936-9)

DE JESUS, R.; SAHAI, Y.; GUARNIERI, F. L.; FAGUNDES, P. R.; DE ABREU, A. J.; PILLAT, V. G.; LIMA, W. L. C.. F-region ionospheric parameters observed in the equatorial and low latitude regions during medium solar activity in the Brazilian sector and comparison with the IRI-2007 model results. Advances in Space Research, v. 47, n. 4, p. 718-728, . Web of Science Citations: 18. (07/07842-6)

ABALDE, J. R.; FAGUNDES, P. R.; SAHAI, Y.; PILLAT, V. G.; PIMENTA, A. A.; BITTENCOURT, J. A.. Height-resolved ionospheric drifts at low latitudes from simultaneous OI 777.4 nm and OI 630.0 nm imaging observations. JOURNAL OF GEOPHYSICAL RESEARCH, v. 109, p. A11308-A11318, .

SAHAI, Y.; FAGUNDES, P. R.; ABALDE, J. R.; PIMENTA, A. A.; BITTENCOURT, J. A.; OTSUKA, Y.; RIOS, V. H.. Generation of large-scale equatorial F-region plasma depletions during low range spread-F season. Annales Geophysicae, v. 22, p. 15-23, .

SAHAI, Y.; FAGUNDES, P. R.; BECKER-GUEDES, F.; ABALDE, J. R.; CROWLEY, G.; PI, X.; IGARASHI, K.; AMARANTE, G. M.; BITTENCOURT, J. A.; PIMENTA, A. A.. Longitudinal differences observed in the ionospheric F-region during the major geomagnetic storm of 31 March 2001. Annales Geophysicae, v. 22, p. 3221-3229, . (02/12427-4)

DE ABREU, A. J.; FAGUNDES, P. R.; SAHAI, Y.; DE JESUS, R.; BITTENCOURT, J. A.; BRUNINI, C.; GENDE, M.; PILLAT, V. G.; LIMA, W. L. C.; ABALDE, J. R.; et al. Hemispheric asymmetries in the ionospheric response observed in the American sector during an intense geomagnetic storm. JOURNAL OF GEOPHYSICAL RESEARCH, v. 115, . Web of Science Citations: 22. (08/05482-5)

FAGUNDES, P. R.; BITTENCOURT, J. A.; DE ABREU, A. J.; MOOR, L. P.; MUELLA, M. T. A. H.; SAHAI, Y.; ABALDE, J. R.; PEZZOPANE, M.; SOBRAL, J. H. A.; ABDU, M. A.; et al. Atypical nighttime spread-F structure observed near the southern crest of the ionospheric equatorial ionization anomaly. JOURNAL OF GEOPHYSICAL RESEARCH, v. 117, . Web of Science Citations: 6. (08/05482-5)

FAGUNDES, P. R.; BITTENCOURT, J. A.; ABALDE, J. R.; SAHAI, Y.; BOLZAN, M. J. A.; PILLAT, V. G.; LIMA, W. L. C.. F layer postsunset height rise due to electric field prereversal enhancement: 1. Traveling planetary wave ionospheric disturbance effects. JOURNAL OF GEOPHYSICAL RESEARCH, v. 114, . Web of Science Citations: 22. (08/05482-5)

FAGUNDES, P. R.; ABALDE, J. R.; BITTENCOURT, J. A.; SAHAI, Y.; FRANCISCO, R. G.; PILLAT, V. G.; LIMA, W. L. C.. F layer postsunset height rise due to electric field prereversal enhancement: 2. Traveling planetary wave ionospheric disturbances and their role on the generation of equatorial spread F. JOURNAL OF GEOPHYSICAL RESEARCH, v. 114, . Web of Science Citations: 19. (08/05482-5)

Distribution map of accesses to this page
Click here to view the access summary to this page.
Please report errors in researcher information by writing to: cdi@fapesp.br.
X

Report errors in this page


Error details: