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[PDF] Top 20 Equatorial plasma bubbles and L-band scintillations in Africa during solar minimum

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Equatorial plasma bubbles and L-band scintillations in Africa during solar minimum

Equatorial plasma bubbles and L-band scintillations in Africa during solar minimum

... GPS scintillations in equatorial Africa is adequately explained by geometric arguments, ...the solar terminator and local geomagnetic field, or STBA hypothesis (Tsunoda, 1985, ...While ... See full document

8

A global climatology for equatorial plasma bubbles in the topside ionosphere

A global climatology for equatorial plasma bubbles in the topside ionosphere

... torial plasma bubble (EPB) occurrence based on evening sec- tor plasma density measurements from polar-orbiting De- fense Meteorological Satellite Program (DMSP) spacecraft during ...irregular ... See full document

10

Effect of solar and magnetic activity on VHF scintillations near the equatorial anomaly crest

Effect of solar and magnetic activity on VHF scintillations near the equatorial anomaly crest

... The plasma bubbles become highly structured as they rise to higher altitudes above the magnetic ...eastward during the day and is westward after ...and solar activity ...of solar and ... See full document

12

Effect of solar and magnetic activity on VHF scintillations near the equatorial anomaly crest

Effect of solar and magnetic activity on VHF scintillations near the equatorial anomaly crest

... The plasma bubbles become highly structured as they rise to higher altitudes above the magnetic ...eastward during the day and is westward after ...and solar activity ...of solar and ... See full document

13

Observation of equatorial plasma bubbles by the airglow imager on ISS-IMAP

Observation of equatorial plasma bubbles by the airglow imager on ISS-IMAP

... EPBs during geomagnetic storms Although Solar cycle 24 is a period of weaker solar activ- ity, many geomagnetic storms occurred in 2013 since it was the local minimum between the peaks in 2012 ... See full document

14

Observation of equatorial plasma bubbles by the airglow imager on ISS-IMAP

Observation of equatorial plasma bubbles by the airglow imager on ISS-IMAP

... EPBs during geomagnetic storms Although Solar cycle 24 is a period of weaker solar activ- ity, many geomagnetic storms occurred in 2013 since it was the local minimum between the peaks in 2012 ... See full document

13

Equatorial plasma bubbles in the ionosphere over Eritrea: occurrence and drift speed

Equatorial plasma bubbles in the ionosphere over Eritrea: occurrence and drift speed

... northeast Africa, when the opportunity arose for one of the authors to accept a position with the University of Asmara in Eritrea, installing an all-sky imager there became a ...period during which the ... See full document

12

Equatorial plasma bubbles in the ionosphere over Eritrea: occurrence and drift speed

Equatorial plasma bubbles in the ionosphere over Eritrea: occurrence and drift speed

... northeast Africa, when the opportunity arose for one of the authors to accept a position with the University of Asmara in Eritrea, installing an all-sky imager there became a ...period during which the ... See full document

11

Evolutionary phases of equatorial spread F including L band scintillations and plumes in the context of GPS total electron content variability: a case study

Evolutionary phases of equatorial spread F including L band scintillations and plumes in the context of GPS total electron content variability: a case study

... and L is the ambient plasma density scale length, which is inversely proportional to the plasma density gradient dn 0 /dz and is given by L = [ n 1 0 ( dn dz 0 )] −1 ...low solar ... See full document

12

Three-dimensional morphology of equatorial plasma bubbles deduced from measurements onboard CHAMP

Three-dimensional morphology of equatorial plasma bubbles deduced from measurements onboard CHAMP

... Lühr, H. and Xiong, C.: IRI-2007 model overestimates electron den- sity during the 23/24 solar minimum, Geophys. Res. Lett., 37, L23101, doi:10.1029/2010GL045430, 2010. Mannucci, A. J., Tsurutani, B. ... See full document

7

Keywords: Solar minimum, Spread-F, Postmidnight plasma irregularities, equatorial

Keywords: Solar minimum, Spread-F, Postmidnight plasma irregularities, equatorial

... predominant on the F-layer vertical drift and the occurrence of the plasma irregularities, 419. while it is not important during solar minimum[r] ... See full document

46

L band scintillations and calibrated total electron content gradients over Brazil during the last solar maximum

L band scintillations and calibrated total electron content gradients over Brazil during the last solar maximum

... out during the data analysis showed that an interval of 10 min is the best compro- mise between the temporal variability of the ionosphere and a good spatial resolution of the ... See full document

11

Seasonal-longitudinal variability of equatorial plasma bubbles

Seasonal-longitudinal variability of equatorial plasma bubbles

... 4 Discussion The previous section summarized latitudinal plasma density profiles observed in the evening local-time sector orbit by DMSP satellites over a full solar cycle. Rates of EPB occur- rence were ... See full document

11

Faith in a seed: on the origins of equatorial plasma bubbles

Faith in a seed: on the origins of equatorial plasma bubbles

... of equatorial plasma irregu- larities holds that there will generally always be density per- turbations sufficient to provide the seeds for irregularity de- velopment whenever the Rayleigh–Taylor ... See full document

14

Seasonal-longitudinal variability of equatorial plasma bubbles

Seasonal-longitudinal variability of equatorial plasma bubbles

... 4 Discussion The previous section summarized latitudinal plasma density profiles observed in the evening local-time sector orbit by DMSP satellites over a full solar cycle. Rates of EPB occur- rence were ... See full document

10

Observed and predicted characteristics of equatorial F1 layer during solar minimum

Observed and predicted characteristics of equatorial F1 layer during solar minimum

... Received: 25 November 2013 – Revised: 8 April 2014 – Accepted: 15 April 2014 – Published: 28 May 2014 Abstract. This study aims to assess the predictability of IRI-2012 on the equatorial F1 layer during ... See full document

10

Climatology characterization of equatorial plasma bubbles using GPS data

Climatology characterization of equatorial plasma bubbles using GPS data

... the solar activity ...value during equinoxes. Again, the values of the depth decrease as the solar activity ...decreasing solar activity, as for the previous ... See full document

12

Zonal velocity of the equatorial plasma bubbles over Kolhapur, India

Zonal velocity of the equatorial plasma bubbles over Kolhapur, India

... of equatorial ionospheric plasma bubbles and their comparison with model ...lat.) during clear moonless ...of equatorial plasma bubbles for the period of ... See full document

8

Equatorial vertical plasma drifts and the measured and IRI model predicted F2 layer parameters above Ouagadougou during solar minimum

Equatorial vertical plasma drifts and the measured and IRI model predicted F2 layer parameters above Ouagadougou during solar minimum

... at equatorial and mid- latitudes is essentially latitude difference, which seems to be connected to the geomagnetic field ...the equatorial zone. It is well known that the daytime upward plasma drift ... See full document

17

Observations of quiet-time moderate midlatitude L-band

scintillation in association with plasma bubbles

Observations of quiet-time moderate midlatitude L-band scintillation in association with plasma bubbles

... causing L-band scintillation is an extension of the equatorial plasma bubbles to apex heights of about 1850 km over the magnetic ...of equatorial and low latitude ionospheric ... See full document

13

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