Items where Author is "Venkat Ratnam, M."

Article

Prasad, P. ; Roja Raman, M. ; Venkat Ratnam, M. ; Chen, Wei-Nai ; Vijaya Bhaskara Rao, S. ; Gogoi, Mukunda M. ; Kompalli, Sobhan Kumar ; Sarat Kumar, K. ; Suresh Babu, S. (2018) Characterization of atmospheric Black Carbon over a semi-urban site of Southeast India: Local sources and long-range transport Atmospheric Research, 213 . pp. 411-421. ISSN 0169-8095

Kishore, P. ; Venkat Ratnam, M. ; Velicogna, I. ; Sivakumar, V. ; Bencherif, H. ; Clemesha, B. R. ; Simonich, D. M. ; Batista, P. P. ; Beig, G. (2014) Long-term trends observed in the middle atmosphere temperatures using ground based LIDARs and satellite borne measurements Annales Geophysicae, 32 (3). pp. 301-317. ISSN 1432-0576

Rao, P. B. ; Beig, G. ; Dabas, R. S. ; Ramkumar, Geetha ; Gurubaran, S. ; Rao, Kusuma G. ; Manoharan, P. K. ; Patra, A. K. ; Ravindran, Sudha ; Pant, Tarun K. ; Venkat Ratnam, M. ; Chakravartyi, S. C. ; Sridharan, R. (2012) An overview of CAWSES - India program with emphasis to equatorial atmospheric coupling processes Journal of Atmospheric and Terrestrial Physics, 75-76 . pp. 98-114. ISSN 0021-9169

Venkat Ratnam, M. ; Roja Raman, M. ; Mehta, Sanjay Kumar ; Nath, Debashis ; Krishnamurthy, B. V. ; Rajeevan, M. (2011) Sub-daily variations observed in Tropical Easterly Jet (TEJ) streams Journal of Atmospheric and Solar-Terrestrial Physics, 73 (7-8). pp. 731-740. ISSN 1364-6826

Venkat Ratnam, M. ; Shravan Kumar, M. ; Basha, Ghouse ; Anandan, V. K. ; Jayaraman, A. (2010) Effect of the annular solar eclipse of 15 January 2010 on the lower atmospheric boundary layer over a tropical rural station Journal of Atmospheric and Solar-Terrestrial Physics, 72 (18). pp. 1393-1400. ISSN 1364-6826

Jayaraman, A. ; Venkat Ratnam, M. ; Patra, A. K. ; Narayana Rao, T. ; Sridharan, S. ; Rajeevan, M. ; Gadhavi, H. ; Kesarkar, A. P. ; Srinivasulu, P. ; Raghunath, K. (2010) Study of Atmospheric Forcing and Responses (SAFAR) campaign: overview Annales Geophysicae, 28 (1). pp. 89-101. ISSN 1432-0576

Jayaraman, A. ; Venkat Ratnam, M. ; Patra, A. K. ; Narayana Rao, T. ; Sridharan, S. ; Rajeevan, M. ; Gadhavi, H. ; Kesarkar, A. P. ; Srinivasulu, P. ; Raghunath, K. (2010) Study of atmospheric forcing and responses (SAFAR) campaign: overview Annales Geophysicae, 28 . pp. 89-101. ISSN 0992-7689

Venkat Ratnam, M. ; Patra, A. K. ; Krishna Murthy, B. V. (2010) Tropical mesopause: is it always close to 100 km? Journal of Geophysical Research, 115 . pp. D06106_1-D06106_8. ISSN 0148-0227

Nath, Debashis ; Venkat Ratnam, M. ; Patra, A. K. ; Krishna Murthy, B. V. ; Vijaya Bhaskar Rao, S. (2010) Turbulence characteristics over tropical station Gadanki (13.5°N, 79.2°E) estimated using high-resolution GPS radiosonde data Journal of Geophysical Research, 115 . pp. D07102_1-D07102_13. ISSN 0148-0227

Roja Raman, M. ; Jagannadha Rao, V. V. M. ; Venkat Ratnam, M. ; Rajeevan, M. ; Rao, S. V. B. ; Narayana Rao, D. ; Prabhakara Rao, N. (2009) Characteristics of the Tropical Easterly Jet: long-term trends and their features during active and break monsoon phases Journal of Geophysical Research, 114 . pp. D19105_1-D19105_14. ISSN 0148-0227

Venkat Ratnam, M. ; Kishore Kumar, G. ; Krishna Murthy, B. V. ; Patra, A. K. ; Jagannadha Rao, V. V. M. ; Vijaya Bhaskar Rao, S. ; Kishore Kumar, K. ; Ramkumar, Geetha (2008) Long-term variability of the low latitude mesospheric SAO and QBO and their relation with stratospheric QBO Geophysical Research Letters, 35 . pp. L21809_1-L21809_5. ISSN 0094-8276

Kishore Kumar, G. ; Venkat Ratnam, M. ; Patra, A. K. ; Jagannadha Rao, V. V. M. ; Vijaya Bhaskar Rao, S. ; Kishore Kumar, K. ; Gurubaran, S. ; Ramkumar, Geetha ; Narayana Rao, D. (2008) Low-latitude mesospheric mean winds observed by Gadanki mesosphere stratosphere troposphere (MST) radar and comparison with rocket, High Resolution Doppler Imager (HRDI), and MF radar measurements and HWM93 Journal of Geophysical Research, 113 . pp. D19117_1-D19117_12. ISSN 0148-0227

Kishore Kumar, G. ; Venkat Ratnam, M. ; Patra, A. K. ; Vijaya Bhaskara Rao, S. ; Russell, James (2008) Mean thermal structure of the low-latitude middle atmosphere studied using Gadanki Rayleigh lidar, Rocket, and SABER/TIMED observations Journal of Geophysical Research, 113 . pp. D23106_1-D23106_10. ISSN 0148-0227

Kishore Kumar, G. ; Venkat Ratnam, M. ; Patra, A. K. ; Jagannadha Rao, V. V. M. ; Vijaya Bhaskara Rao, S. ; Narayana Rao, D. (2007) Climatology of low-latitude mesospheric echo characteristics observed by Indian mesosphere, stratosphere, and troposphere radar Journal of Geophysical Research, 112 . pp. D06109_1-D06109_9. ISSN 0148-0227

Venkat Ratnam, M. ; Nee, J. B. ; Chen, W. N. ; Siva Kumar, V. ; Rao, P. B. (2003) Recent observations of mesospheric temperature inversions over a tropical station (13.5°N,79.2°E) Journal of Atmospheric and Solar-Terrestrial Physics, 65 (3). pp. 323-334. ISSN 1364-6826

Venkat Ratnam, M. ; Narayana Rao, D. ; Narayana Rao, T. ; Krishnaiah, M. ; Bhavani Kumar, Y. ; Siva Kumar, V. ; Rao, P. B. (2002) Coordinated MST radar and lidar observations of the study of the mesospheric structure over a tropical station Journal of Atmospheric and Solar-Terrestrial Physics, 64 (3). pp. 349-358. ISSN 0021-9169

Venkat Ratnam, M. ; Narayana Rao, D. ; Narayana Rao, T. ; Thulasiraman, S. ; Nee, J. B. ; Gurubaran, S. ; Rajaram, R. (2001) Mean winds observed with Indian MST radar over tropical mesosphere and comparison with various techniques Annales Geophysicae, 19 (8). pp. 1027-1038. ISSN 1432-0576

Asnani, G. C. ; Rama Varma Raja, M. K. ; Salvekar, P. S. ; Narayana Rao, D. ; Kishore, P. ; Narayana Rao, T. ; Venkat Ratnam, M. ; Rao, P. B. (2000) Patchy layered structure of tropical troposphere as seen by Indian MST radar Indian Journal of Radio and Space Physics, 29 (4). pp. 182-191. ISSN 0367-8393

Conference or Workshop Item

Chakraborty, R. ; Chakraborty, A. ; Basha, G. ; Venkat Ratnam, M. (2020) Long-term trends in lightning frequency and intensity over the Indian region In: 2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science.