Zobrazeno 1 - 10
of 439
pro vyhledávání: '"K. N. Iyer"'
Publikováno v:
Annales Geophysicae, Vol 27, Pp 1047-1057 (2009)
The dual frequency signals from the GPS satellites recorded at Rajkot (22.29° N, 70.74° E, Geographic, 14.03° N Geomagnetic) near the Equatorial ionization anomaly crest in India have been analyzed to study the ionospheric variations in terms o
Externí odkaz:
https://doaj.org/article/c85a3997b0994a999a921dadd3ce50bc
Autor:
E. R. de Paula, K. N. Iyer, D. L. Hysell, F. S. Rodrigues, E. A. Kherani, A. C. Jardim, L. F. C. Rezende, S. G. Dutra, N. B. Trivedi
Publikováno v:
Annales Geophysicae, Vol 22, Pp 3513-3522 (2004)
On 11 April 2001, a large magnetic storm occurred with SSC at 13:43 UT, and Dst reached below -200nT after two southward Bz excursions. The Kp index during this storm reached 8 and remained high (>4) for about 21h, and the São Luís magnetometer
Externí odkaz:
https://doaj.org/article/7e0d147d739f4e6995ad7f6bc01d3d9f
Publikováno v:
Annales Geophysicae, Vol 13, Pp 730-739 (1995)
The characteristics of ionospheric scintillations at Rajkot in the equatorial anomaly crest region in India are described for the years 1987–1991 by monitoring the 244-MHz transmission from the satellite FLEETSAT. This period covers the ascendin
Externí odkaz:
https://doaj.org/article/7a8cd9f597e24b29b0e0dd69b4b8e19a
Publikováno v:
Advances in Space Research. 52:591-603
In this paper, response of low latitude ionosphere to a moderate geomagnetic storm of 7–8 May 2005 (SSC: 1920 UT on 7 May with Sym-H minimum, ∼−112 nT around 1600 UT on 8 May) has been investigated using the GPS measurements from a near EIA cre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e631ac426c8e6344b1fed7eef3d15e3
https://doi.org/10.1016/j.asr.2013.04.017
https://doi.org/10.1016/j.asr.2013.04.017
Autor:
Young-Sil Kwak, Kyung-Suk Cho, H. P. Joshi, Jae-Joon Lee, Malini Aggarwal, H. Chandra, K. N. Iyer
Publikováno v:
Advances in Space Research. 49:1709-1720
The ionospheric total electron content (TEC) in the northern hemispheric equatorial ionization anomaly (EIA) crest region is investigated by using dual-frequency signals of the Global Positioning System (GPS) acquired from Rajkot (Geog. Lat. 22.29°N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50a90c0c782c92d66e10a962c48f3598
https://doi.org/10.1016/j.asr.2012.03.005
https://doi.org/10.1016/j.asr.2012.03.005
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 407:1108-1115
The aim of this paper is to study the latitudinal variation in the solar rotation in soft X-ray corona. The time series bins are formed on different latitude regions of the solar full disk (SFD) images that extend from 80 degree South to 80 degree No
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e072c901c0d82b186453424bcf246880
https://doi.org/10.1111/j.1365-2966.2010.16947.x
https://doi.org/10.1111/j.1365-2966.2010.16947.x
Autor:
Nandita D. Ganguly, K. N. Iyer
Publikováno v:
International Journal of Remote Sensing. 30:3927-3941
The success of the implementation of the Montreal Protocol in India and its impact on the observed trend in total and stratospheric ozone at different Indian latitude belts have been examined using satellite data. Although the effective enforcement o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f7e417108bb982125f7bad4c122f20a
https://doi.org/10.1080/01431160902821791
https://doi.org/10.1080/01431160902821791
Autor:
Nandita D. Ganguly, K. N. Iyer
Publikováno v:
International Journal of Climatology. 29:735-746
Increase in our earth's surface air temperature has been a subject of major concern in the recent years, as it may destroy the existing ecosystem and exert varied adverse effects on mankind and vegetation. In view of the gravity of the impending cris
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f860fad8eb75b07b06e839e6a96d51e7
https://doi.org/10.1002/joc.1748
https://doi.org/10.1002/joc.1748
Publikováno v:
Annales Geophysicae, Vol 27, Iss 3, Pp 1047-1057 (2009)
Annales Geophysicae, Vol 27, Pp 1047-1057 (2009)
Annales Geophysicae, Vol 27, Pp 1047-1057 (2009)
The dual frequency signals from the GPS satellites recorded at Rajkot (22.29° N, 70.74° E, Geographic, 14.03° N Geomagnetic) near the Equatorial ionization anomaly crest in India have been analyzed to study the ionospheric variations in terms of T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16d48083af3ca4c58344d1fe5490f696
http://www.ann-geophys.net/27/1047/2009/angeo-27-1047-2009.pdf
http://www.ann-geophys.net/27/1047/2009/angeo-27-1047-2009.pdf
Publikováno v:
Advances in Space Research. 43:273-281
Solar dependence of electron and ion temperatures ( T e and T i ) in the ionosphere is studied using RPA data onboard SROSS C2 at an altitude of ∼500 km and 77°E longitude during early morning hours (04:00–07:00 LT) for three solar activities: s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e62a9cc29b879fcb603c8f78172955fb
https://doi.org/10.1016/j.asr.2008.04.006
https://doi.org/10.1016/j.asr.2008.04.006