Results 51 to 60 of about 1,334 (170)

Ionospheric response to AGW propagation detected using GNSS measurements and coherent HF sounding over “Vernadsky” and “Palmer” Antarctic stations

Ukrainian Antarctic Journal, 2016
The work presents results of the diagnostics of travelling ionospheric disturbances (TIDs) over the Antarctic Peninsula obtained by using two different techniques. The first method is based on ground-based multi- positional GNSS TEC measurements, and the second one is bistatic coherent ionospheric HF radio sounding between “Akademik Vernadsky” and ...
Sopin, A.A., Yampolski, Y.M., Paznukhov, V.V., Kascheev, S.B., Koloskov, A.V., Pikulik, ??.I., Zalizovski, A.V., Kashcheyev, A.S.   +7 more
openaire   +5 more sources

Evaluation of atmospheric profiles derived from single- and zero-difference excess phase processing of BeiDou radio occultation data from the FY-3C GNOS mission [PDF]

Atmospheric Measurement Techniques, 2018
The Global Navigation Satellite System (GNSS) Occultation Sounder (GNOS) is one of the new-generation payloads onboard the Chinese FengYun 3 (FY-3) series of operational meteorological satellites for sounding the Earth's neutral atmosphere and ...
W. Bai, W. Bai, W. Bai, C. Liu, C. Liu, X. Meng, X. Meng, Y. Sun, Y. Sun, Y. Sun, G. Kirchengast, G. Kirchengast, G. Kirchengast, Q. Du, Q. Du, X. Wang, X. Wang, G. Yang, M. Liao, Z. Yang, D. Zhao, D. Zhao, J. Xia, J. Xia, Y. Cai, Y. Cai, L. Liu, L. Liu, D. Wang, D. Wang   +29 more
doaj   +1 more source

Exploring Earth's atmosphere with radio occultation: contributions to weather, climate and space weather [PDF]

, 2011
The launch of the proof-of-concept mission GPS/MET (Global Positioning System/Meteorology) in 1995 began a revolution in profiling Earth's atmosphere through radio occultation (RO).
R. A. Anthes
core   +1 more source

GNSS Atmospheric and Ionospheric Sounding – Methods and Results [PDF]

, 2012
The GPS atmospheric and ionospheric delays have been considered as an error source for a long time. In 1992 when the GPS became fully operational, Ware (1992) suggested limb sounding the Earth atmosphere using GPS atmospheric delay signals. In April 1995, the small research satellite of Microlab-1 was successfully put into a Low Earth Orbit (LEO) to ...
openaire   +2 more sources

Observations of traveling ionospheric disturbances driven by gravity waves from sources in the upper and lower atmosphere [PDF]

Annales Geophysicae
The observed traveling ionospheric disturbances (TIDs) are attributed to atmospheric gravity waves generated by auroral sources in the lower thermosphere or gravity waves generated in the troposphere by midlatitude weather systems.
P. Prikryl, D. R. Themens, D. R. Themens, J. Chum, S. Chakraborty, R. G. Gillies, J. M. Weygand   +6 more
doaj   +1 more source

Spire RO Thermal Profiles for Climate Studies: Initial Comparisons of the Measurements from Spire, NOAA-20 ATMS, Radiosonde, and COSMIC-2

Remote Sensing, 2023
Global Navigation Satellite System (GNSS) Radio Occultation (RO) data play an essential role in improving numerical weather prediction (NWP) and monitoring climate change.
Xin Jing, Shu-Peng Ho, Xi Shao, Tung-Chang Liu, Yong Chen, Xinjia Zhou   +5 more
doaj   +1 more source

GIM-TEC adaptive ionospheric weather assessment and forecast system [PDF]

, 2013
The Ionospheric Weather Assessment and Forecast (IWAF) system is a computer software package designed to assess and predict the world-wide representation of 3-D electron density profiles from the Global Ionospheric Maps of Total Electron Content (GIM-TEC)
Arikan, Feza, Gulyaeva, Tamara L., Hernández Pajares, Manuel, Stanislawska, Iwona   +3 more
core   +2 more sources

Combination of High-Rate Ionosonde Measurements with COSMIC-2 Radio Occultation Observations for Reference Ionosphere Applications

Atmosphere
Knowledge of ionospheric plasma altitudinal distribution is crucial for the effective operation of radio wave propagation, communication, and navigation systems.
Iurii Cherniak, David Altadill, Irina Zakharenkova, Víctor de Paula, Víctor Navas-Portella, Douglas Hunt, Antoni Segarra, Ivan Galkin   +7 more
doaj   +1 more source

Retrieving Precipitable Water Vapor From Shipborne Multi‐GNSS Observations [PDF]

, 2019
©2019. American Geophysical UnionPrecipitable water vapor (PWV) is an important parameter for climate research and a crucial factor to achieve high accuracy in satellite geodesy and satellite altimetry. Currently Global Navigation Satellite System (GNSS)
Ge, Maorong, Gerland, Sebastian, Ramatschi, Markus, Schuh, Harald, Semmling, Maximilian, Wang, Jungang, Wickert, Jens, Wu, Zhilu, Zus, Florian   +8 more
core   +1 more source

Ionospheric Sounding and Tomography by GNSS

, 2013
Studies of the ionosphere and the physics of the ionospheric processes rely on the knowledge of spatial distribution of the ionospheric plasma. Being the propagation medium for radio waves, the ionosphere significantly affects the performance of various navigation, location, and communication systems.
Kunitsyn, Vyacheslav, Andreeva, Elena, Nesterov, Ivan, Padokhin, Artem   +3 more
openaire   +3 more sources