Showing papers in "Journal of Atmospheric and Solar-Terrestrial Physics in 2018"

TL;DR: In this article, the temporal variability of precipitable water vapour (PWV) derived from Global Navigation Satellite System (GNSS) observations can be used to forecast precipitation events.

TL;DR: In this article, the applicability of long-standing definitions of electrically fair weather atmospheric conditions is challenged by detailed new measurements and theory, and three improved requirements (FW1 to FW3) for fair weather surface atmospheric electricity measurements are described.

TL;DR: In this paper, a climatologic assessment of the NeQuick and IRI-Plas models is investigated at a global scale from global navigation satellite system (GNSS) observations.

TL;DR: The polar microwave brightness temperature is highly correlated with the polar magnetic field strength and the fast solar wind speed, and this correlation is used to predict the strength of the solar cycle: the smoothed sunspot numbers in the southern and northern hemispheres can be predicted as 89 and 59, respectively.

TL;DR: The SHIELDS framework as discussed by the authors was developed to understand the dynamics of the surface charging environment (SCE), the hot (keV) electrons representing the source and seed populations for the radiation belts, on both macro-and micro-scale.

TL;DR: In this article, an analysis of geomagnetic disturbances and ionospheric electron density distribution during the 2015 St. Patrick's Day Geomagnetic storm has been presented using satellite-borne and ground-based observations.

TL;DR: In this article, the co-seismic infrasound is generated by vertical movement of the ground surface caused by seismic waves propagating at supersonic speeds, and it is observed that the large amplitudes might lead to nonlinear formation of N-shaped pulse in the upper atmosphere with much longer dominant period.

TL;DR: In this article, Sun and ionospheric indices in the International Reference Ionosphere, IRI, and its extension to the Plasmasphere models, which are developed using the predecessor SSN1 index.

TL;DR: In this paper, the authors investigated the propagation of the 2015 June 21 CME-driven shock as revealed by the type II bursts at metric and longer wavelengths and coronagraph observations.

TL;DR: A neurocomputing based predictive model for the average rainfall in India during the season of summer monsoon is demonstrated and the efficiency of Conjugate Gradient Descent algorithm for multilayer ANN has been finally established through Shannon-Fano coding.

TL;DR: In this paper, the authors used Level 3 CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations) averaged monthly data to study the climatology of mean aerosol optical depth (AOD) from 2010 to 2015, and to compare the mean AOD for different satellites for the period of 2015.

TL;DR: This paper presents modelling efforts of TEC taking into account solar and geomagnetic activity, time of the day and day of the year using neural networks (NNs) modelling technique and finds that NN model performs better than the corresponding NeQuick 2 model for low latitude region.

TL;DR: In this article, the performance of GPS Klobuchar (GPSKlob), BDS Klob and NeQuick Galileo (NeQuickG) ionospheric correction models are evaluated in the range delay and position domains over China.

TL;DR: In this paper, the authors focus on an eruptive C2.2 flare on 16 March 2016 around 06:40, one of the first flares observed by the Siberian Radioheliograph (SRH).

TL;DR: In this article, the GPS-derived and radiosonde-derived PWV time series are compared at 97 collocated stations on a global scale, which shows the maximum/minimum/mean root mean square (RMS) errors and bias of 1.8/0.6/1.3

TL;DR: In this paper, the peak plasma frequency of the ionosonde data from the Islamabad station was studied related to the July 24, 2015 (M5.1), October 26, 2015, M7.5, and April 25, 2015(M7.8) EQs in Pakistan and Nepal, respectively.

TL;DR: In this paper, the authors presented the climatology and interannual variability of both eastward and westward-propagating ∼2-day waves (QTDW) observed in the MLS/Aura geopotential height data for a period of 10 full years.

TL;DR: In this article, the authors used the monitoring data of the surface electric field potential gradient (∇φ), registered in warm season over the period of 2006-2017 in Tomsk (south of Western Siberia), to detect the electric field response to the passage of isolated convective cells.

TL;DR: Yermolaev et al. as discussed by the authors studied the geoeffectiveness of two types of compression regions: corotating interaction regions (CIRs) before the solar wind high-speed streams (HSSs) from the coronal holes and Sheaths before the fast interplanetary CMEs (ICMEs) including flux-rope magnetic clouds (MCs) and non-MC Ejecta using the OMNI dataset.

TL;DR: In this article, the authors examined both the global structure and seasonal variability of the eastward and westward-travelling quasi 6-day waves (Q6DWs) observed in the geopotential height (GPH) NOGAPS-ALPHA hourly forecast data during the time interval of 14 months (January 2009-February 2010), and the climatology and interannual variability of Q6 DWs observed in satellite MLS/Aura GPH data for an extended period of 10 years (January 2005-December 2014).

TL;DR: In this paper, a joint analysis of data from 10 midlatitude decameter wavelength radars effects are investigated during 80 x-ray flares that occurred in the period 2013-2017.

TL;DR: In this article, the NCAR Whole Atmosphere Community Climate Model, extended version with specified dynamics (SD-WACCM-X) is coupled with an ionospheric model (Sami3 is Another Model of the Ionosphere) to study day-to-day variability in the ionosphere during January 2010.

TL;DR: In this paper, the effect of the ionosphere day-night non-uniformity on the electromagnetic field amplitude at the Schumann resonance and higher frequencies was evaluated using 2DTE.

TL;DR: In this paper, the 13-month smoothed monthly sunspot number from the new version was used for the first time to research the relations among the feature parameters of solar cycles under the bimodal distribution for the modern era cycles (10-23), and their physical implications are discussed.

TL;DR: In this article, the vertical diffusion velocity and eddy transport coefficient means derived from the climatological measurements of mesospheric [O] by SABER were described, along with a 1-D composition profile.

TL;DR: In this paper, GNSS-derived precipitable water vapour (PWV) and external input of rainfall data is used and beneficial for the prediction of rapid changes of PWV which eventually leads to rainfall prediction in near real time.

TL;DR: In this article, a statistical study of waves in the magnetosphere registered with the midlatitude coherent decameter radar located near Ekaterinburg (EKB), Russia is presented.

TL;DR: In this article, the authors used modified Malaysian Meteorological Department wind shear index based on major convection centres during the monsoon onset to determine the onset of the southwest monsoon in Malaysia.

TL;DR: In this article, it was shown that a spectrum filtration and a change in amplitudes of acoustic-gravity waves occur in the region of polar thermosphere circulation, and the amplitude of the blocked waves is greatly enhanced due to their interaction with the non-uniform flow.

TL;DR: In this article, the dynamics of the ionospheric parameters during periods of strong and moderate magnetic storm of 2015-2017 were studied using ground observation data, according to the ground observations data, and the analysis showed a high incidence of the effect of an increase in the electron concentration preceding the onset of magnetic storms.