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- Title
Traveling ionospheric disturbance studies enabled by advanced ground-based radio techniques.
- Authors
Zhang, Shun-Rong; Coster, Anthea; Erickson, Philip
- Abstract
The traveling ionospheric disturbance (TID) is a common form of upper atmospheric variability as an ionospheric manifestation of atmospheric acoustic-gravity waves(AGWs). There are many different sources and mechanisms associated with AGW excitation;thus TIDs have different wave properties and space and time scales. This study focuseson mid-latitude large scale TIDs caused by geospace storms as well as other sources such as the solar eclipse and the solar terminator. Using the densely distributed GNSSnetwork yielding 2-D differential total electron content maps as well as height-resolved electron density measurements by incoherent scatter radars (ISRs) at Millstone Hill and Arecibo, we cross-check TID detection methods and physical significance of ionospheric disturbance information in different ionospheric variables,and, in particular, we characterize both horizontal and vertical propagation propertiesof TIDs, allowing for presenting quasi 3-D ionospheric disturbances. This study is featured with using unprecendented high temporal-spatial coverage over the continental USprovided by 2000+ GNSS receivers, along with highly accurate electron density heightprofiles with the high temporal-height resolution derived using the ISR plasma-linetechnique.
- Subjects
IONOSPHERIC disturbances; IONOSPHERE; ELECTRON density; SOLAR eclipses; ATMOSPHERIC waves; INCOHERENT scattering; LATITUDE
- Publication
Geophysical Research Abstracts, 2019, Vol 21, p1
- ISSN
1029-7006
- Publication type
Article