Log in

Relevant bibliographies by topics / VHF Scintillations

Contents

Journal articles

Academic literature on the topic 'VHF Scintillations'

Author: Grafiati

Published: 6 September 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'VHF Scintillations.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "VHF Scintillations"

1

Pathak, K. N., R. D. Jivrajani, H. P. Joshi, and K. N. Iyer. "Characteristics of VHF scintillations in the equatorial anomaly crest region in India." Annales Geophysicae 13, no. 7 (1995): 730–39. http://dx.doi.org/10.1007/s00585-995-0730-7.

Full text

Abstract:

Abstract. The characteristics of ionospheric scintillations at Rajkot in the equatorial anomaly crest region in India are described for the years 1987–1991 by monitoring the 244-MHz transmission from the satellite FLEETSAT. This period covers the ascending phase of solar cycle 22. Scintillations occur predominantly in the pre-midnight period during equinoxes and winter seasons and in the post-midnight period during summer season. During equinoxes and winter, scintillation occurrence increases with solar activity, whilst in summer it is found to decrease with solar activity. Statistically, scin

APA, Harvard, Vancouver, ISO, and other styles

2

Rama Rao, P. V. S., P. T. Jayachandran, P. Sri Ram, B. V. Ramana Rao, D. S. V. V. D. Prasad, and K. K. Bose. "Characteristics of VHF radiowave scintillations over a solar cycle (1983−1993) at a low-latitude station: Waltair (17.7°N, 83.3°E)." Annales Geophysicae 15, no. 6 (1997): 729–33. http://dx.doi.org/10.1007/s00585-997-0729-3.

Full text

Abstract:

Abstract. The characteristics of VHF radiowave scintillations at 244 MHz (FLEETSAT) during a complete solar cycle (1983–93) at a low-latitude station, Waltair (17.7°N, 83.3°E), are presented. The occurrence of night-time scintillations shows equinoctial maxima and summer minima in all the epochs of solar activity, and follows the solar activity. The daytime scintillation occurrence is negatively correlated with the solar activity and shows maximum occurrence during the summer months in a period of low solar activity. The occurrence of night-time scintillations is inhibited during disturbed day

APA, Harvard, Vancouver, ISO, and other styles

3

Singh, R. P., R. P. Patel, and A. K. Singh. "Effect of solar and magnetic activity on VHF scintillations near the equatorial anomaly crest." Annales Geophysicae 22, no. 8 (2004): 2849–60. http://dx.doi.org/10.5194/angeo-22-2849-2004.

Full text

Abstract:

Abstract. The VHF amplitude scintillation recorded during the period January 1991 to December 1993 in the declining phase of a solar cycle and April 1998 to December 1999 in the ascending phase of the next solar cycle at Varanasi (geogr. lat.=25.3°, long.=83.0°, dip=37°N) have been analyzed to study the behavior of ionospheric irregularities during active solar periods and magnetic storms. It is shown that irregularities occur at arbitrary times and may last for <30min. A rise in solar activity increases scintillations during winter (November-February) and near equinoxes (March-April; Septe

APA, Harvard, Vancouver, ISO, and other styles

4

Koparkar, P. V., and R. G. Rastogi. "VHF radio scintillations at Bombay." Journal of Atmospheric and Terrestrial Physics 47, no. 8-10 (1985): 907–10. http://dx.doi.org/10.1016/0021-9169(85)90066-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Vijayakumar, P. N., and P. K. Pasricha. "Parametrization of spectra of plasma bubble induced VHF satellite scintillations and its geophysical significance." Annales Geophysicae 15, no. 3 (1997): 345–54. http://dx.doi.org/10.1007/s00585-997-0345-2.

Full text

Abstract:

Abstract. An important component of ionospheric plasma irregularity studies in the Indian low latitudes involves the study of the plasma bubbles which produce intense scintillations of the transionospheric satellite signals. Many such plasma bubble induced (PBI) scintillation events were identified while recording 244 MHz signal from the geostationary satellite Fleetsat (73°E) at Delhi (28.6°N, 77.2°E) during March-April 1991. This type of scintillations represents changes in plasma processes. These scintillations are spectrally analyzed using an autoregressive (AR) scheme, which is equivalent

APA, Harvard, Vancouver, ISO, and other styles

6

Sripathi, S., S. Bose, A. K. Patra, T. K. Pant, B. Kakad, and A. Bhattacharyya. "Simultaneous observations of ESF irregularities over Indian region using radar and GPS." Annales Geophysicae 26, no. 11 (2008): 3197–213. http://dx.doi.org/10.5194/angeo-26-3197-2008.

Full text

Abstract:

Abstract. In this paper, we present simultaneous observations of temporal and spatial variability of total electron content (TEC) and GPS amplitude scintillations on L1 frequency (1.575 GHz) during the time of equatorial spread F (ESF) while the MST radar (53 MHz) located at Gadanki (13.5° N, 79.2° E, Dip latitude 6.3° N), a low latitude station, made simultaneous observations. In particular, the latitudinal and longitudinal extent of TEC and L-band scintillations was studied in the Indian region for different types of ESF structures observed using the MST radar during the low solar activity p

APA, Harvard, Vancouver, ISO, and other styles

7

Rama Rao, P. V. S., S. Tulasi Ram, K. Niranjan, D. S. V. V. D. Prasad, S. Gopi Krishna, and N. K. M. Lakshmi. "VHF and L-band scintillation characteristics over an Indian low latitude station, Waltair (17.7° N, 83.3° E)." Annales Geophysicae 23, no. 7 (2005): 2457–64. http://dx.doi.org/10.5194/angeo-23-2457-2005.

Full text

Abstract:

Abstract. Characteristics of simultaneous VHF (244 MHz) and L-band (1.5 GHz) scintillations recorded at a low-latitude station, Waltair (17.7° N, 83.3° E), during the low sunspot activity year of March 2004 to March 2005, suggest that the occurrence of scintillations is mainly due to two types, namely the Plasma Bubble Induced (PBI), which maximizes during the post sunset hours of winter and equinoctial months, and the Bottom Side Sinusoidal (BSS) type, which maximizes during the post-midnight hours of the summer solstice months. A detailed study on the spectral characteristics of the scintill

APA, Harvard, Vancouver, ISO, and other styles

8

Chatterjee, S., and S. K. Chakraborty. "Variability of ionospheric scintillation near the equatorial anomaly crest of the Indian zone." Annales Geophysicae 31, no. 4 (2013): 697–711. http://dx.doi.org/10.5194/angeo-31-697-2013.

Full text

Abstract:

Abstract. Multistation observations of ionosphere scintillation at VHF (250 MHz) and GNSS L1 frequency from three locations – (i) Bokkhali (BOK) (geographic 21.6° N, 88.2° E, dip 31.48°, (ii) Raja Peary Mohan College Centre (RPMC) (geographic 22.66° N, 88.4° E, dip 33.5°) and (iii) Krishnath College Centre (KNC), Berhampore (geographic 24.1° N, 88.3° E, dip 35.9°) – at ~ 1° latitudinal separations near the northern crest of the equatorial ionization anomaly (EIA) of the Indian longitude sector are investigated in conjunction with total electron content (TEC) data and available ionosonde data n

APA, Harvard, Vancouver, ISO, and other styles

9

Gupta, J. K., Lakha Singh, and R. S. Dabas. "Faraday polarization fluctuations and their dependence on post sunset secondary maximum and amplitude scintillations at Delhi." Annales Geophysicae 20, no. 2 (2002): 185–90. http://dx.doi.org/10.5194/angeo-20-185-2002.

Full text

Abstract:

Abstract. VHF Faraday rotation (FR) and amplitude scintillation data recorded simultaneously during May 1978–December 1980 at Delhi (28.63° N, 77.22° E; Dip 42.44° N) is analyzed in order to study the Faraday polarization fluctuations (FPFs) and their dependence on the occurrence of post sunset secondary maximum (PSSM) and amplitude scintillations. It is noted that FPFs are observed only when both PSSM and scintillations also occur simultaneously. FPFs are observed only during winter and the equinoctial months of high sunspot years. FPFs events are associated with intense scintillation activit

APA, Harvard, Vancouver, ISO, and other styles

10

RASTOGI, R. G., P. V. KOPARKAR, A. PATIL, and B. M. PATHAN. "Daytime VHF Radio Wave Scintillations at Equatorial Latitudes." Journal of geomagnetism and geoelectricity 43, no. 7 (1991): 549–61. http://dx.doi.org/10.5636/jgg.43.549.

Full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!