Showing papers in "Journal of Atmospheric and Solar-Terrestrial Physics in 2016"

TL;DR: A review of recent developments in atmosphere-ionosphere science can be found in this article, focusing on the effects of internal waves, such as gravity waves and solar tides, sudden stratospheric warmings (SSWs), and of solar activity on the structure of the atmosphere.

TL;DR: Li et al. as mentioned in this paper analyzed the relationship between particulate pollution and land-use and land cover change (LUCC) and found that due to natural factors, or human activities such as urban sprawl or deforestation, etc., the response of pollution to LUCC shows obvious differences in different areas.

TL;DR: In this article, a comparative study between Artificial Neural Networks (ANNs), Gene Expression Programming (GEP), Wavelet Regression (WR) and 5 selected temperature-based empirical models for estimating the daily global solar radiation is presented.

TL;DR: In this paper, the influence of Middle Range Energy Electrons (MEE) precipitation on the atmosphere using the SOCOL3-MPIOM chemistry-climate model with coupled ocean is investigated.

TL;DR: In this paper, the authors review recent research articles that present observations of the large-scale day-to-day dynamic tropospheric response to changes in the downward current density Jz of the global atmospheric electric circuit (GEC).

TL;DR: In this paper, an artificial neural network (ANN) based on spatial interpolation is developed to estimate global solar radiation (GSR) in southeast China, and the ANN model with the network of 9-17-1 provides better accuracy than the two improved empirical models in GSR estimation.

TL;DR: The LALINET (Latin American Lidar Network) as mentioned in this paper is the first fully operative lidar network for aerosol research in South America, probing the atmosphere on regular basis since September 2013.

TL;DR: In this article, three artificial intelligence methods including Gene Expression Programming (GEP), Artificial Neural Networks (ANN) and Adaptive Neuro-Fuzzy Inference System (ANFIS) as well as, 48 empirical equations (10, 12 and 26 equations were temperature-based, sunshine-based and meteorological parameters based, respectively) were used to estimate daily solar radiation in Kerman, Iran in the period of 1992-2009.

TL;DR: In this paper, the dependence of the F2layer critical frequency, fo F2, on five widely used solar activity indices (F 10.7, Lym-α, MgII, R and EUV 0.1-50 ) are carried out considering noon values manually validated at the ionospheric station of Rome (41.8°N, 12.5°E, Italy) between January 1976 and December 2013, a period of time covering the last three solar cycles and including the prolonged and anomalous minimum of solar cycle 23/24 (years 2008-2009

TL;DR: In this article, the authors compared the accuracy of MODIS derived precipitable water vapor (PWV) retrieved from near-infrared channels with the GPS PWV estimated from the Global Positioning System (GPS) data and measured surface temperature and pressure values over Hanle, located at a high altitude (∼4500m) trans-Himalayan region.

TL;DR: In this paper, a continuous list of substorm onsets compiled from SuperMAG covering January 1, 1997 through December 31, 2007 are studied, and it is shown that the current v is the best single predictor of subsequently observing a substorm.

TL;DR: In this article, the authors investigated the evolution and trends in the surface net short-wave radiation (NSWR, surface solar radiation reflected) over the Mediterranean Basin during the period 1979-2012 using monthly re-analysis datasets from the Modern Era Retrospective-Analysis for Research and Applications (MERRA) and aimed to shed light on the specific role of clouds on the NSWR trends.

TL;DR: In this article, the authors present a Catalogue of electron precipitation events observed in the polar atmosphere during 1961-2014 and briefly outline the previous results of this data set analysis, and reveal a special class of numerous events caused by energetic electron precipitation recorded in the atmosphere at polar latitudes.

TL;DR: In this article, the authors present a concept for a small mission to the Sun-Earth Lagrangian L5 point for innovative solar, heliospheric and space weather science.

TL;DR: In this article, a single-station measurement of low-frequency (LF, 40-500 kHz) magnetic fields was used to locate the narrow bipolar events (NBEs) based on the single station measurement.

TL;DR: In this article, an advanced mathematical model of the radiation forcing on the ocean surface is proposed for the assessment of the CO2 fluxes between atmosphere and ocean boundary in the upwelling zones.

TL;DR: In this paper, an empirical model of the main ionospheric trough, MIT, for quiet (Kp=2) nighttime (18:00-06:00 LT) winter conditions in the Northern and Southern hemispheres for all levels of solar activity was developed.

TL;DR: In this article, the effect of geomagnetic activity (using the aa index) and sunspot activity on surface climate using sea level pressure dataset from Hadley centre during northern winter was compared.

TL;DR: In this article, the authors estimated the long-term inter-annual variations and percentage change in trends of aerosol optical depth (AOD) retrieved from MODerate resolution Imaging Spectroradiometer (MODIS) and Multi-angle Imaging Spectro-Radiometer(MISR) sensors for a 10-year period during 2004-2013 over two distinct sites namely, Skukuza (SKZ; 24.99°S, 31.58°E) and Richards Bay (RBAY; 28.8°S).

TL;DR: In this paper, the authors presented a mathematical modeling of the optimum tilt for solar collectors for intercepting maximum solar irradiance (power density), at different geographical locations, periods of time and different base-ground types.

TL;DR: In this paper, more than 20 years of measured data for daily global solar radiation on a horizontal surface are used to develop and validate seven models to estimate the daily global global solar irradiance by day of the year for ten cities around Egypt as a case study.

TL;DR: In this article, a comparative study on the electric field and its derivative parameters of negative lightning in Malaysia and other regions is presented, which is the first in Malaysia where the parameters of the negative electric fields and their derivative are thoroughly analyzed.

TL;DR: In this paper, the mesospheric wind field was found to differ significantly from that of normal years probably due to enhanced planetary wave (PW) activity before the September SSW event, as has been observed in the 2002 major SSW.

TL;DR: In this article, satellite observations reveal that polar cap arcs join together at the cusp and are actually cusp aligned, and they were likely caused by Kelvin-Helmholtz waves around the low-latitude magnetopause under a northward IMF B z.

TL;DR: In this article, the authors investigated the atmospheric changes from two months prior, to five months following the 2015 Nepal earthquake and found that columnar ozone and sea level pressure dropped following the earthquake.

TL;DR: In this article, the occurrence patterns of ionospheric irregularities during quiet geomagnetic conditions over the African low latitude region were analyzed, where GNSS-derived Total Electron Content of the ionosphere data during the period 2001-2012 were used.

TL;DR: In this paper, the authors studied the multifractal behavior of TEC recorded at a total of 27 stations confined to a narrow longitude band (35°W-80°W) spanning from equator to high-latitude regions (30°S to 80°N) (geographic coordinates) during solar minimum (2008) and solar maximum (2014).

TL;DR: In this article, the interplanetary and geomagnetic characteristics of High-Intensity Long-Duration Continuous AE Activity (HILDCAA) events are studied using wavelet analysis technique.

TL;DR: In this article, the authors used observations from the Solar Occultation For Ice Experiment (SOFIE) on the Aeronomy of Ice in the Mesosphere (AIM) satellite to examine noctilucent clouds and their environment at middle latitudes.

TL;DR: In this article, the spatial and temporal variations of aerosol optical properties and its impact on various properties of clouds over Southern India for the last ten years (2005-2014) by using Moderate Resolution Imaging Spectroradiometer (MODIS) data retrieved from the onboard Terra and Aqua satellites.