Temporal and spatial variations in TEC using simultaneous measurements from the Indian GPS network of receivers during the low solar activity period of 2004–2005 PVS Rama Rao, S Gopi Krishna, K Niranjan, D Prasad Annales Geophysicae 24 (12), 3279-3292, 2006 | 306 | 2006 |
On the validity of the ionospheric pierce point (IPP) altitude of 350 km in the Indian equatorial and low-latitude sector PVS Rama Rao, K Niranjan, D Prasad, S Gopi Krishna, G Uma Annales Geophysicae 24 (8), 2159-2168, 2006 | 168 | 2006 |
Geomagnetic storm effects on GPS based navigation PVS Rama Rao, S Gopi Krishna, J Vara Prasad, S Prasad, D Prasad, ... Annales Geophysicae 27 (5), 2101-2110, 2009 | 135 | 2009 |
Study of spatial and temporal characteristics of L-band scintillations over the Indian low-latitude region and their possible effects on GPS navigation PVS Rama Rao, S Gopi Krishna, K Niranjan, D Prasad Annales Geophysicae 24 (6), 1567-1580, 2006 | 111 | 2006 |
Local time dependent response of postsunset ESF during geomagnetic storms S Tulasi Ram, PVS Rama Rao, D Prasad, K Niranjan, S Gopi Krishna, ... Journal of Geophysical Research: Space Physics 113 (A7), 2008 | 102 | 2008 |
The role of post-sunset vertical drifts at the equator in predicting the onset of VHF scintillations during high and low sunspot activity years S Tulasi Ram, PVS Rama Rao, K Niranjan, D Prasad, R Sridharan, ... Annales Geophysicae 24 (6), 1609-1616, 2006 | 71 | 2006 |
Day‐to‐day variability of equatorial electrojet and its role on the day‐to‐day characteristics of the equatorial ionization anomaly over the Indian and Brazilian sectors K Venkatesh, PR Fagundes, DSVVD Prasad, CM Denardini, AJ De Abreu, ... Journal of Geophysical Research: Space Physics 120 (10), 9117-9131, 2015 | 60 | 2015 |
Features of additional stratification in ionospheric F2 layer observed for half a solar cycle over Indian low latitudes PVS Rama Rao, K Niranjan, D Prasad, PS Brahmanandam, ... Journal of Geophysical Research: Space Physics 110 (A4), 2005 | 56 | 2005 |
VHF and L-band scintillation characteristics over an Indian low latitude station, Waltair (17.7 N, 83.3 E) PVS Rama Rao, S Tulasi Ram, K Niranjan, DD Prasad, S Gopi Krishna, ... Annales Geophysicae 23 (7), 2457-2464, 2005 | 54 | 2005 |
Vertical electron density and topside effective scale height (HT) variations over the Indian equatorial and low latitude stations K Venkatesh, PVS Rama Rao, PL Saranya, D Prasad, K Niranjan Annales Geophysicae 29 (10), 1861-1872, 2011 | 52 | 2011 |
Post midnight spread-F occurrence over Waltair (17.7 N, 83.3 E) during low and ascending phases of solar activity K Niranjan, PS Brahmanandam, P Ramakrishna Rao, G Uma, D Prasad, ... Annales Geophysicae 21 (3), 745-750, 2003 | 45 | 2003 |
On the variabilities of the Total Electron Content (TEC) over the Indian low latitude sector S Prasad, PVSR Rao, D Prasad, K Venkatesh, K Niranjan Advances in Space Research 49 (5), 898-913, 2012 | 43 | 2012 |
Ionospheric response to the 26 August 2018 geomagnetic storm using GPS-TEC observations along 80 E and 120 E longitudes in the Asian sector D Lissa, VKD Srinivasu, D Prasad, K Niranjan Advances in Space Research 66 (6), 1427-1440, 2020 | 39 | 2020 |
Morphological and spectral characteristics of L-band and VHF scintillations and their impact on trans-ionospheric communications RR PVS, ST Ram, SG Krishna, K Niranjan, P DSVVD Earth, planets and space 58 (7), 895-904, 2006 | 33 | 2006 |
Ionospheric responses to two large geomagnetic storms over Japanese and Indian longitude sectors G Uma, PS Brahmanandam, Y Kakinami, A Dmitriev, NL Devi, KU Kiran, ... Journal of atmospheric and solar-terrestrial physics 74, 94-110, 2012 | 25 | 2012 |
Diurnal and seasonal variations in sporadic E-layer (Es layer) occurrences over equatorial, low and mid latitude stations-A comparative study S Prasad, D Prasad, K Venkatesh, K Niranjan, PVS Rao 94.20. dg; 94.20. Vv, 2012 | 24 | 2012 |
Study of TEC, slab-thickness and neutral temperature of the thermosphere in the Indian low latitude sector K Venkatesh, PVS Rama Rao, D Prasad, K Niranjan, PL Saranya Annales Geophysicae 29 (9), 1635-1645, 2011 | 23 | 2011 |
The combined effects of electrojet strength and the geomagnetic activity (Kp-index) on the post sunset height rise of the F-layer and its role in the generation of ESF … S Tulasi Ram, PVS Rama Rao, D Prasad, K Niranjan, A Raja Babu, ... Annales Geophysicae 25 (9), 2007-2017, 2007 | 23 | 2007 |
The role of interplanetary shock orientation on SC/SI rise time and geoeffectiveness R Selvakumaran, B Veenadhari, Y Ebihara, S Kumar, D Prasad Advances in Space Research 59 (5), 1425-1434, 2017 | 21 | 2017 |
Characteristics of VHF radiowave scintillations over a solar cycle (1983− 1993) at a low-latitude station: Waltair (17.7° N, 83.3° E) PVS Rama Rao, PT Jayachandran, P Sri Ram, BV Ramana Rao, ... Annales Geophysicae 15 (6), 729-733, 1997 | 21 | 1997 |