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Found 4 entries in the Bibliography.

Showing entries from 1 through 4

2020
Climatology characteristics of ionospheric irregularities described with GNSS ROTI the Global Ultraviolet Imager (GUVI) settled on the Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) mission spacecraft. The GUVI-based model is completely Kotulak, Kacper; Zakharenkova, Irina; Krankowski, Andrzej; Cherniak, Iurii; Wang, Ningbo; Fron, Adam; Published by: Remote Sensing Published on: YEAR: 2020 DOI: 10.3390/rs12162634
2018
ROTI Maps: a new IGS ionospheric product characterizing the ionospheric irregularities occurrence The International GNSS Service (IGS) has recently accepted for official release a new ionospheric product to characterize ionospheric irregularity and intensity as derived from multi-site ground-based GPS observations. This product was developed and implemented in the Space Radio-Diagnostic Research Center (SRRC), University of Warmia and Mazury. The SRRC has implemented this approach using in-house software for multi-step processing and interpretation of carrier phase delays in dual-frequency GPS signals and provides the new product to the IGS database. We used measurements with 30-s sampling rate from about 700 GPS stations located at high and middle latitudes of the Northern Hemisphere. The product represents changes in the GPS-based Rate of TEC Index (ROTI) and has a polar projection within a range of 50\textdegree\textendash90\textdegreeN in geomagnetic latitude and 00\textendash24 magnetic local time. The new service allows regular monitoring of ionospheric irregularities over the Northern Hemisphere. We demonstrate results of visualization and analysis of the IGS ROTI Maps product for representative periods with geomagnetically quiet conditions and severe geomagnetic storms in 2014\textendash2015 in order to demonstrate the performance and ability of this product to depict the development of ionospheric irregularities in the area of interest. During space weather events, the ionospheric irregularities oval, as deduced from the ROTI Maps, expands significantly in size toward midlatitudes with simultaneous increase in irregularities intensity, which can lead to degradation of the GPS precise positioning performance at lower latitudes. Cherniak, Iurii; Krankowski, Andrzej; Zakharenkova, Irina; Published by: GPS Solutions Published on: 06/2018 YEAR: 2018 DOI: 10.1007/s10291-018-0730-1
2017
MONITOR ionospheric network: two case studies on scintillation and electron content variability The ESA MONITOR network is composed of high-frequency-sampling global navigation satellite systems (GNSS) receivers deployed mainly at low and high latitudes to study eniguel, Yannick; Cherniak, Iurii; Garcia-Rigo, Alberto; Hamel, Pierrick; andez-Pajares, Manuel; Kameni, Roland; Kashcheyev, Anton; Krankowski, Andrzej; Monnerat, Michel; Nava, Bruno; , others; Published by: Published on: YEAR: 2017 DOI: 10.5194/angeo-35-377-2017
2009
Near Earth space plasma monitoring under COST 296 This review paper presents the main achievements of the near Earth space plasma monitoring under COST 296 Action. The outputs of the COST 296 community making data, historical and real-time, standardized and available\ to the ionospheric community for their research, applications and modeling purposes are presented. The contribution\ of COST 296 with the added value of the validated data made possible a trusted ionospheric monitoring\ for research and modeling purposes, and it served for testing and improving the algorithms producing real-time data and providing data users measurement uncertainties. These value added data also served for calibration and validation of space-borne sensors. New techniques and parameters have been developed for monitoring the near\ Earth space plasma, as time dependent 2D maps of vertical total electron content (vTEC), other key ionospheric\ parameters and activity indices for distinguishing disturbed ionospheric conditions, as well as a technique for improving\ the discrepancies of different mapping services. The dissemination of the above products has been developed\ by COST 296 participants throughout the websites making them available on-line for real-time applications. Altadill, D.; Boska, J.; Cander, L.; Gulyaeva, T.; Reinisch, B.; Romano, V.; Krankowski, A.; Bremer, J.; Belehaki, A.; Stanislawska, I.; Jakowski, N.; Scotto, C.; Published by: Annals of Geophysics Published on: 06/2009 YEAR: 2009 DOI:

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