Items where Author is "Ramachandran, Visagaperuman"

Kumar, Sushil and Deo, Anil and Ramachandran, Visagaperuman (2009) Nighttime D-region equivalent electron density determined from tweek sferics observed in the South Pacific region. Earth Planets Space, 61 (7). pp. 905-911. ISSN 1880-5981

Kumar, Vickal V. and Ramachandran, Visagaperuman and Buadromo, Viti T. and Prakash, Justine N. (2009) Surface fair-weather potential gradient measurements from a small tropical Island station Suva, Fiji. Earth Planets and Space, 61 (6). pp. 747-753. ISSN 1343-8832

Kumar, Sushil and Kishore, Amol N. and Ramachandran, Visagaperuman (2008) Higher harmonic tweek sferics observed at low latitude: estimation of VLF reflection heights and tweeks propagation distance. Annales Geophysicae, 26 . pp. 1451-1459. ISSN 0992-7689

Ramachandran, Visagaperuman and Prakash, Justine N. and Deo, Anil and Kumar, Sushil (2007) Lightning stroke distance estimation from single station observation and validation with WWLLN data. Annales Geophysicae, 25 (7). pp. 1509-1517. ISSN 0992-7689

Kumar, Sushil and Kishore, Amol N. and Ramachandran, Visagaperuman (2007) Ionospheric scintillations on 3.95 GHz signal from intelsat (701) at low latitude in the South Pacific region. Physica Scripta, 75 (3). pp. 258-262. ISSN 0031-8949

Ramachandran, Visagaperuman and Kumar, Vickal V. and Prakash, Justine N. and Kumar, Sushil (2007) Preliminary findings of surface fair-weather electric field trends over small tropical Island station, Suva, Fiji. The South Pacific Journal of Natural Sciences, 12 . pp. 70-72. ISSN 1013-9877

Onwubolu, Godfrey C. and Buryan, P. and Garimella, Sitaram and Ramachandran, Visagaperuman and Buadromo, Viti T. and Abraham, Ajith (2007) Self organizing data mining for weather forecasting. [Conference Proceedings]

Kumar, Sushil and Deo, Anil and Kishore, Amol N. and Ramachandran, Visagaperuman (2007) Whistlers observed at low-latitude ground-based VLF facility in Fiji. Journal of Atmospheric and Solar-Terrestrial Physics, 69 (2). pp. 1366-1376. ISSN 1364-6826

Ramachandran, Visagaperuman and Kishore, Amol N. and Kumar, Sushil (2006) Mapping the cloud-to ground lightning occurrence in Fiji. The South Pacific Journal of Natural Sciences, 24 (1). pp. 32-37. ISSN 1013-9877

Ramachandran, Visagaperuman and Kumar, Vickal V. (2006) Modified rain attenuation model for tropical regions for Ku-band signals. International Journal of Satellite Communication and Networking, 25 (1). pp. 53-67. ISSN 1542-0973

Kumar, Vickal V. and Deo, Ravinesh C. and Ramachandran, Visagaperuman (2006) Total rain accumulation and rain-rate analysis for small tropical Pacific Islands: a case study of Suva, Fiji. Atmospheric Science Letters, 7 (3). pp. 53-58. ISSN NA

Kishore, Amol N. and Kumar, Sushil and Ramachandran, Visagaperuman (2005) Observations of ELF-VLF sferics in the South Pacific region. [Conference Proceedings]

Ramachandran, Visagaperuman and Kumar, Sushil and Kishore, Amol N. (2005) Remote sensing of cloud to ground lightning location using the TOGA of sferics. Atmospheric Science Letters, 6 . pp. 128-132. ISSN 1530-261X

Kumar, Sushil and Ramachandran, Visagaperuman and Kishore, Amol N. (2004) Geomagnetic storms and associated scintillation on VHF signals. The South Pacific Journal of Natural Sciences, 22 . pp. 75-77. ISSN 1013-9877

Ramachandran, Visagaperuman and Kumar, Vickal V. (2004) Rain attenuation measurement on Ku-band satellite TV downlink in small Island countries. Electronics Letters, 40 (1). pp. 49-50. ISSN 0013-5194

Ramachandran, Visagaperuman and Kumar, Sushil and Kishore, Amol N. (2003) Cloud-to-ground lightning location using TOGA of sferics. The South Pacific Journal of Natural Sciences, 21 . pp. 63-65. ISSN 1013-9877

Ramachandran, Visagaperuman and Kumar, Vickal V. (2003) Preliminary findings of the effect of some atmospheric parameters on Ku-band satellite link. The South Pacific Journal of Natural Sciences, 21 (1). pp. 59-62. ISSN 1013-9877