Zobrazeno 1 - 10
of 54
pro vyhledávání: '"V.V Somayajulu"'
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 61:1143-1155
Results from coordinated measurements of OI 630.0 nm dayglow intensities (centered on ∼220 km altitude), along with VHF (50 MHz) coherent backscatter returns from Thiruvananthapuram, a dip equatorial station in India, revealed that the temporal var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04c923035f9a698b3635927e3fe522fd
https://doi.org/10.1016/s1364-6826(99)00064-4
https://doi.org/10.1016/s1364-6826(99)00064-4
Autor:
G.D. Vyas, V.V Somayajulu, R. Sekar, Shika Raizada, R. Sridharan, R. N. Misra, S. R. Das, V.V. Babu, R. Raghavarao, R. Narayanan, H. S. S. Sinha, P B Rao, H. Chandra, P. V. S. Ramarao, A. D. Danilov, D. Pallam Raju
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 59:2051-2067
A comprehensive multi-technique campaign involving the launch of two high altitude RH-560 rockets was carried out from Sriharikota (SHAR), India, a near-equatorial rocket launching station at the onset of equatorial spread-F, along with a host of gro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42ad128bfa2d41f2b4668f5004dd6044
https://doi.org/10.1016/s1364-6826(97)00031-x
https://doi.org/10.1016/s1364-6826(97)00031-x
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 56:51-58
This paper presents simultaneous observations made near the magnetic equator during counter electrojet events using a coherent VHF backscattcr radar, magnetometer and digital ionosonde to understand the physical processes that generate the counter el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72fa7410ab46ce3f28b6636b8dd92fc7
https://doi.org/10.1016/0021-9169(94)90175-9
https://doi.org/10.1016/0021-9169(94)90175-9
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 53:965-976
The response of the equatorial night-time F -region to magnetic stormtime disturbances has been examined using mainly ionograms recorded at Trivandrum and magnetograms recorded at high, middle and low latitudes during the magnetic storm of 23–26 No
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3fd27b589ec27d0f6d1a6f0d861d59d
https://doi.org/10.1016/0021-9169(91)90008-u
https://doi.org/10.1016/0021-9169(91)90008-u
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 53:881-887
In this paper, the behaviour of the fluctuating component in the solar wind parameters (V, Bz), the auroral electrojet indices (AU, AL), the ring current index (Dst) and the interplanetary electric field (V × B2) during 10 magnetic storms is analyse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d44274ff18cbc43bc109369cecde4d9
https://doi.org/10.1016/0021-9169(91)90001-n
https://doi.org/10.1016/0021-9169(91)90001-n
Publikováno v:
Journal of Geophysical Research. 95:4307
Nighttime equatorial thermospheric meridional winds have been derived using h′F data from two equatorial stations nearly on the same magnetic meridian. It is shown that the winds derived are quite consistent with earlier observations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9b52906610d981565c5c80d4a034c12
https://doi.org/10.1029/ja095ia04p04307
https://doi.org/10.1029/ja095ia04p04307
Publikováno v:
Tetrahedron. 39:2277-2282
3-Substituted-7a, 10a-dihydro-4-hydroxy-5-methoxy-2H-furo(3',2';4,5)furo(2,3-h) benzopyran-2,9(9H)-diones and related compounds which contain the carbon skeleton of aflatoxins, were synthesized. They exhibited medium anticoagulant activity at early s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb076b1bc7e5b5192cfeaa00032ed691
https://doi.org/10.1016/s0040-4020(01)91953-2
https://doi.org/10.1016/s0040-4020(01)91953-2
Publikováno v:
Planetary and Space Science. 36:1149-1154
The night-time positive bay-type perturbations ( ΔH ) in the horizontal component ( H ) at groundlevel geomagnetic field are compared for three locations: Trivandrum (1.2°S gm. lat.), Alibag (9.5°N gm. lat.) and Tashkent (32.3°N gm. lat.) in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce72f800f6a985fd47aabafaa5fe7240
https://doi.org/10.1016/0032-0633(88)90069-4
https://doi.org/10.1016/0032-0633(88)90069-4
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 43:817-827
The mean Doppler frequency ( f D ) of the VHP backscatter radar signals from type II plasma irregularities in the equatorial electrojet is a measure of the driving electric field in the electrojet. The measured Doppler frequency values are used to de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ece4119f63e3e3b47ec2ae7690d048f
https://doi.org/10.1016/0021-9169(81)90059-3
https://doi.org/10.1016/0021-9169(81)90059-3
Publikováno v:
Journal of Atmospheric and Terrestrial Physics. 41:189-201
The VHP backscatter radar observations on the equatorial electrojet at Thumba near Trivandrum (dip ~1°S) show that most of the bay-type disturbances in the surface geomagnetic field, with typical durations of 20–50 min, result from corresponding f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a515aed87699a97891984740918df9db
https://doi.org/10.1016/0021-9169(79)90012-6
https://doi.org/10.1016/0021-9169(79)90012-6