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GEETHA RAMKUMAR
GEETHA RAMKUMAR
Space Physics Laboratory, VSSC, ISRO
Verified email at vssc.gov.in
Title
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Cited by
Year
Planetary wave coupling (5–6-day waves) in the low-latitude atmosphere–ionosphere system
DV Pancheva, PJ Mukhtarov, NJ Mitchell, DC Fritts, DM Riggin, ...
Journal of Atmospheric and Solar-Terrestrial Physics 70 (1), 101-122, 2008
752008
Meteor wind radar observations of gravity wave momentum fluxes and their forcing toward the Mesospheric Semiannual Oscillation
TM Antonita, G Ramkumar, KK Kumar, V Deepa
Journal of Geophysical Research: Atmospheres 113 (D10), 2008
702008
Initial results from SKiYMET meteor radar at Thumba (8.5 N, 77 E): 1. Comparison of wind measurements with MF spaced antenna radar system
KK Kumar, G Ramkumar, ST Shelbi
Radio Science 42 (06), 1-13, 2007
562007
Mean winds and tidal components during counter electrojet events
VV Somayajulu, L Cherian, K Rajeev, G Ramkumar, CR Reddi
Geophysical Research Letters 20 (14), 1443-1446, 1993
491993
Altitude profiles of temperature from 4 to 80 km over the tropics from MST radar and lidar
K Parameswaran, MN Sasi, G Ramkumar, PR Nair, V Deepa, BVK Murthy, ...
Journal of Atmospheric and Solar-Terrestrial Physics 62 (15), 1327-1337, 2000
462000
Long‐term variability of the low latitude mesospheric SAO and QBO and their relation with stratospheric QBO
MV Ratnam, GK Kumar, BVK Murthy, AK Patra, VVMJ Rao, SVB Rao, ...
Geophysical Research Letters 35 (21), 2008
442008
Tropical tropopause dynamics (TTD) campaigns over Indian region: An overview
MV Ratnam, SV Sunilkumar, K Parameswaran, BVK Murthy, G Ramkumar, ...
Journal of Atmospheric and Solar-Terrestrial Physics 121, 229-239, 2014
432014
Vertical propagation characteristics and seasonal variability of tidal wind oscillations in the MLT region over Trivandrum (8.5 N, 77 E): First results from SKiYMET meteor radar
V Deepa, G Ramkumar, M Antonita, KK Kumar, MN Sasi
Annales Geophysicae 24 (11), 2877-2889, 2006
402006
Characteristics of turbulence in the troposphere and lower stratosphere over the Indian Peninsula
SV Sunilkumar, M Muhsin, K Parameswaran, MV Ratnam, G Ramkumar, ...
Journal of Atmospheric and Solar-Terrestrial Physics 133, 36-53, 2015
382015
Local time dependence of the thermal structure in the Venusian equatorial upper atmosphere: Comparison of Akatsuki radio occultation measurements and GCM results
H Ando, M Takagi, T Fukuhara, T Imamura, N Sugimoto, H Sagawa, ...
Journal of Geophysical Research: Planets 123 (9), 2270-2280, 2018
372018
Temporal modulations of the longitudinal structure in F2 peak height in the equatorial ionosphere as observed by COSMIC
G Liu, TJ Immel, SL England, KK Kumar, G Ramkumar
Journal of Geophysical Research: Space Physics 115 (A4), 2010
352010
Meteor radar observations of short‐term tidal variabilities in the low‐latitude mesosphere‐lower thermosphere: Evidence for nonlinear wave‐wave interactions
KK Kumar, V Deepa, TM Antonita, G Ramkumar
Journal of Geophysical Research: Atmospheres 113 (D16), 2008
352008
Influence of tropical cyclones on tropospheric ozone: possible implications
SS Das, MV Ratnam, KN Uma, KV Subrahmanyam, IA Girach, AK Patra, ...
Atmospheric Chemistry and Physics 16 (8), 4837-4847, 2016
332016
A quantitative study on the role of gravity waves in driving the tropical Stratospheric Semiannual Oscillation
TM Antonita, G Ramkumar, KK Kumar, KS Appu, KVS Nambhoodiri
Journal of Geophysical Research: Atmospheres 112 (D12), 2007
332007
On the signature of the quasi‐3‐day wave in the thermosphere during the January 2010 URSI World Day Campaign
SL England, G Liu, Q Zhou, TJ Immel, KK Kumar, G Ramkumar
Journal of Geophysical Research: Space Physics 117 (A6), 2012
312012
Signatures of low latitude–high latitude coupling in the tropical MLT region during sudden stratospheric warming
C Vineeth, TK Pant, KK Kumar, G Ramkumar, R Sridharan
Geophysical Research Letters 36 (20), 2009
302009
Nonmigrating diurnal tides in the troposphere and lower stratosphere over Gadanki (13.5 N, 79.2 E)
MN Sasi, G Ramkumar, V Deepa
Journal of Geophysical Research: Atmospheres 103 (D16), 19485-19494, 1998
301998
Gravity wave signatures in the dip equatorial ionosphere‐thermosphere system during the annular solar eclipse of 15 January 2010
G Manju, MK Madhav Haridas, G Ramkumar, TK Pant, R Sridharan, ...
Journal of Geophysical Research: Space Physics 119 (6), 4929-4937, 2014
282014
Meteor radar observations of short‐term variability of quasi 2 day waves and their interaction with tides and planetary waves in the mesosphere–lower thermosphere region over …
V Suresh Babu, K Kishore Kumar, SR John, KV Subrahmanyam, ...
Journal of Geophysical Research: Atmospheres 116 (D16), 2011
282011
Equatorial waves in temperature in the altitude range 4 to 70 km
BVK Murthy, K Satheesan, K Parameswaran, MN Sasi, G Ramkumar, ...
Quarterly Journal of the Royal Meteorological Society: A journal of the …, 2002
272002
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