Results 101 to 110 of about 449 (162)

Collocated ionosonde and dense GPS/GLONASS network measurements of midlatitude MSTIDs

, 2020
© 2017 COSPAR To analyze midlatitude medium-scale travelling ionospheric disturbances (MSTIDs) over Kazan (55.5°N, 49°E), Russia, the sufficiently dense network of GNSS receivers (more than 150 ground-based stations) were used.

core  

Morphology and Climatology of Nighttime Periodic Ionospheric TEC Disturbances Associated With MSTIDs Over China

Space Weather
In this study, the morphology and climatology of the nighttime periodic disturbances associated with medium‐scale traveling ionospheric disturbances (MSTIDs) are investigated over the entire China sector from January 2014 to August 2017, using data from ...
Ke Li, Donghe Zhang, Yi Zeng, Yaoyu Tian, Guanglin Yang, Yongqiang Hao   +5 more
doaj   +1 more source

Climatology of Satellite Traces over European Mid-Latitudes and Their Association with Travelling Ionospheric Disturbances

Applied Sciences
Satellite traces (STs) are additional ionogram echoes associated with off-vertical reflections from spatially structured F-region plasma. This study investigates the climatology of STs over the European mid-latitude ionosphere using Digisonde ionograms ...
Ankitha Nandakumar, Haris Haralambous, Ola Abu Elezz, Blessy Varghese, Krishnendu Sekhar Paul, Tiju Joseph Mathew   +5 more
doaj   +1 more source

Characterization of medium-scale traveling ionospheric disturbances in the brazilian low latitude sector – Statistical Analysis of All-Sky Images of oi 630 nm airglow emission

, 2012
In order to characterize the phenomenon known as Medium-Scale Traveling Ionospheric Disturbances (MSTIDs), we present in this paper the resultsobtained from the statistical analysis of 10.5 years all-sky images of OI 630 nm airglow emission over the ...
Alexandre Alvares Pimenta, Danielle Cristina de Morais Amorim, Aline Amorim de Almeida   +2 more
core   +1 more source

Observations of MSTIDs/GWs at the F2 layer heights in the near equatorial region.

Ionospheric vertical sounding observations, using a digital ionosonde (Canadian Advanced Digital Ionosonde(CADI)) , arebeing carried out on a routine basis at Manaus (2,9 0 S; 60,0 0 W; dip latitude 6,4 N, hereafter referred to as MAN), Brazil, locatedbetween the geographic and geomagnetic dip equators, since August 2002, (Fig. 1).
Silva de Lima, Newton, Ferreira dos Santos, Alan, Castro de Araújo, Rutenio Luiz   +2 more
openaire   +1 more source

Sources and characteristics of medium‐scale traveling ionospheric disturbances observed by high‐frequency radars in the North American sector

, 2016
Medium-scale traveling ionospheric disturbances (MSTIDs) are wave-like ionospheric perturbations routinely observed by high-frequency radars. We focus on a class of MSTIDs observed during the winter daytime at high latitudes and midlatitudes.
E. S. Miller, M. L. West, Miller, E. S., Ruohoniemi, J. M., West, M. L., J. B. H. Baker, J. M. Ruohoniemi, A. J. Gerrard, N. A. Frissell, R. A. Greenwald, Gerrard, A. J., Greenwald, R. A., Baker, J. B.H., Frissell, N. A., Baker, J. B. H.   +14 more
core   +1 more source

Multi-instrument analysis of medium-scale travelling ionospheric disturbances generated by an intense tropospheric jet-front system with severe convection in Europe in August 2023

Journal of Space Weather and Space Climate
Tropospheric jet-front systems and intense convection are known to be potential sources of atmospheric gravity waves (AGWs), which can propagate upward.
Barta Veronika, Potuznikova Katerina, Knížová Petra Koucká, Chum Jaroslav, Mielich Jens, Guerra Marco, Buresova Dalia, Sivakandan Mani, Verhulst Tobias G. W., Berényi Kitti A., Altadill David, Segarra Antoni, Kouba Daniel, Mosna Zbysek, Buzás Attila, Spogli Luca, Urbář Jaroslav, de Paula Víctor, Ventriglia Vincenzo, Belehaki Anna   +19 more
doaj   +1 more source

Report on the MSTID climatological model

The deliverable describes the empirical model that provides long term forecasts for the MSTID occurrence, having as attributes at least the solar flux indices, the geographic coordinates, the season and the local time.
openaire   +1 more source

Performance of the double-thin-shell approach for studying nighttime medium-scale traveling ionospheric disturbances using two dense GNSS observation networks in Japan

Earth, Planets and Space
Electrodynamic coupling between the ionospheric E and F regions is widely recognized as the underlying mechanism for generating medium-scale traveling ionospheric disturbances (MSTIDs) during nighttime at midlatitudes.
Weizheng Fu, Yuichi Otsuka, Atsuki Shinbori, Michi Nishioka, Septi Perwitasari   +4 more
doaj   +1 more source

Ionospheric Response to the 24–27 February 2023 Solar Flare and Geomagnetic Storms Over the European Region Using a Machine Learning–Based Tomographic Technique

Space Weather
Two solar flares accompanied by coronal mass ejections (CMEs) occurred on 24–25 February (DOY 055–056), 2023, resulting in a large magnetic storm on DOY 058.
Ting Li, Dunyong Zheng, Changyong He, Fei Ye, Pengfei Yuan, Yibin Yao, Mengguang Liao, Jian Xie   +7 more
doaj   +1 more source