Buscar
Mostrando ítems 51-60 de 569
Consequences of a Solar Wind Stream Interaction Region on the Low Latitude Ionosphere: Event of 7 October 2015
(Springer, 2020-12)
In this article, we present a study of the perturbations occurring in the Earth’s environment on 7 October 2015. We use a multi-instrument approach, including space and ground observations. In particular, we study the ...
Lunar atmospheric tidal effects in the plasma drifts observed by the Low‐Latitude Ionospheric Sensor Network
(American Geophysical Union, 2011-07-21)
Data from the Low‐Latitude Ionospheric Sensor Network are used to examine ionospheric electrodynamics during quiet, low solar conditions from September to November 2009. The ground‐based magnetometers and the Jicamarca ...
Methods for the measurement of vertical ionospheric motions near the magnetic equator by incoherent scattering
(American Geophysical Union, 1969-03-01)
Methods are discussed for the measurement of motions of the ionosphere by means of Doppler shifts of incoherent scatter frequency spectra. It is found that velocities can be measured with an accuracy of better than a few ...
The 11th International Symposium on Equatorial Aeronomy (ISEA-11), Taipei, May 2005
(European Geosciences Union (EGU), 2006-07)
This issue of Annales Geophysicae contains selected papers from the 11th International Symposium on Equatorial Aeronomy (ISEA-11) and the Climate and Weather of the Sun-Earth System (CAWSES) Mini-Workshop. ISEA-11 and the ...
Physics‐based forecasts of equatorial radio scintillation for the Communication and Navigation Outage Forecasting System (C/NOFS)
(American Geophysical Union, 2005-12-28)
The plans for producing long‐term (6–24 hour) forecasts of equatorial plasma structure and radio scintillation for the Communication and Navigation Outage Forecasting System (C/NOFS) program are described. We discuss the ...
Low-Latitude Mesosphere, Thermosphere, and Ionosphere
(Hindawi, 2012-05-20)
The objective of this proposed special issue was to provide a forum for papers related to the recent advances in the field of equatorial and low-latitude regions of mesosphere, thermosphere, and ionosphere from observational ...
Higher‐order ionospheric error at Arecibo, Millstone, and Jicamarca
(American Geophysical Union, 2010-11-18)
The ionosphere is a dominant source of Global Positioning System receiver range measurement error. Although dual‐frequency receivers can eliminate the first‐order ionospheric error, most second‐ and third‐order errors ...
Penetration characteristics of the interplanetary electric field to the daytime equatorial ionosphere
(American Geophysical Union, 2008-12-23)
Using 8 years of ionospheric drift measurements from the low‐latitude JULIA (Jicamarca Unattended Long‐term Investigations of the Ionosphere and Atmosphere) radar and the solar wind and interplanetary magnetic field data ...
A new concept regarding the cause of ionosphere semiannual and annual anomalies
(American Geophysical Union, 2011-06)
Since the beginning of the pioneering scientific work on the ionosphere, unusual responses have been reported and have been named semiannual and annual anomalies owing to their unexplained and periodic nature. Despite more ...
On the mutual relationship of the equatorial electrojet, TEC and scintillation in the Peruvian sector
(American Geophysical Union, 2016-05-31)
This paper presents the interrelationship between the equatorial electrojet (EEJ) strength, Global Positioning System (GPS)‐derived total electron content (TEC), and postsunset scintillation from ground observations with ...