SIMuRG: System for Ionosphere Monitoring and Research from GNSS

Currently, more than 6000 operating GNSS receivers deliver observations to multiple servers. Ionospheric data are derived from these measurements providing outstanding space coverage and time resolution. There are about 200 million independent measurements daily. Researchers need sophisticated software tools to deal with such a large amount of data. We present recent advances and products from the System for Ionosphere Monitoring and Research from GNSS (SIMuRG). Currently, SIMuRG provides the total electron content (TEC) variations filtered within 2–10 min, 10–20 min, and 20–60 min, the Rate of the TEC Index, the Along Arc TEC Rate index, and the vertical TEC. SIMuRG is an online service at http://simurg.iszf.irk.ru . The system can be used free of charge and allows calculating both maps and series for arbitrary time intervals and geographic regions. All the data products are available in the form of data or figures. We discuss the system and its geophysics applications.

[1]  Jisheng Xu,et al.  The ionospheric storms in the American sector and their longitudinal dependence at the northern middle latitudes , 2017 .

[2]  Manuel Hernández-Pajares,et al.  Precise ionospheric electron content monitoring from single-frequency GPS receivers , 2018, GPS Solutions.

[3]  S. Solomon,et al.  Variability of thermosphere and ionosphere responses to solar flares , 2011 .

[4]  Irina Zakharenkova,et al.  Prompt penetration electric fields and the extreme topside ionospheric response to the June 22–23, 2015 geomagnetic storm as seen by the Swarm constellation , 2016, Earth, Planets and Space.

[5]  Juha Vierinen,et al.  GNSS Observations of Ionospheric Variations During the 21 August 2017 Solar Eclipse , 2017 .

[6]  J. Bernard Minster,et al.  GPS detection of ionospheric perturbations following the January 17, 1994, Northridge Earthquake , 1995 .

[7]  V. V. Chernukhov,et al.  Ionospheric effects of the solar eclipse of March 9, 1997, as deduced from GPS data , 1998 .

[8]  Anthea J. Coster,et al.  Automated GPS processing for global total electron content data , 2006 .

[9]  E. Astafyeva,et al.  Ionospheric response to earthquakes of different magnitudes: Larger quakes perturb the ionosphere stronger and longer , 2013 .

[10]  A. B. Ishin,et al.  Ionospheric super-bubble effects on the GPS positioning relative to the orientation of signal path and geomagnetic field direction , 2012, GPS Solutions.

[11]  Guillermo González-Casado,et al.  AATR an ionospheric activity indicator specifically based on GNSS measurements , 2018 .

[12]  M. Sergeeva,et al.  Impact of magnetic storms on the global TEC distribution , 2018, Annales Geophysicae.

[13]  Orhan Arikan,et al.  Online, automatic, near‐real time estimation of GPS‐TEC: IONOLAB‐TEC , 2013 .

[14]  A. Komjathy,et al.  Real-Time Detection of Tsunami Ionospheric Disturbances with a Stand-Alone GNSS Receiver: A Preliminary Feasibility Demonstration , 2017, Scientific Reports.

[15]  I. V. Zhivetiev,et al.  Global electron content: a new conception to track solar activity , 2008 .

[16]  V. Pilipenko,et al.  Modulation of the ionosphere by Pc5 waves observed simultaneously by GPS/TEC and EISCAT , 2016, Earth, Planets and Space.

[17]  I. Shagimuratov,et al.  Comparison of total electron content obtained from GPS with IRI , 2000 .

[18]  Chris Rizos,et al.  The International GNSS Service in a changing landscape of Global Navigation Satellite Systems , 2009 .

[19]  Shuanggen Jin,et al.  GNSS ionospheric seismology: Recent observation evidences and characteristics , 2015 .

[20]  L. A. Leonovich,et al.  Observation of large-scale traveling ionospheric disturbances of auroral origin by global GPS networks , 2000 .

[21]  Sergey Pulinets,et al.  Ionospheric precursors of earthquakes and Global Electric Circuit , 2014 .

[22]  Daniel T. Welling,et al.  Multispacecraft observations and modeling of the 22/23 June 2015 geomagnetic storm , 2016 .

[23]  Rune Floberghagen,et al.  Special issue “Swarm science results after 2 years in space” , 2016, Earth, Planets and Space.

[24]  L. A. Leonovich,et al.  MHD nature of night‐time MSTIDs excited by the solar terminator , 2009 .

[25]  Chuang Shi,et al.  Consistency of seven different GNSS global ionospheric mapping techniques during one solar cycle , 2018, Journal of Geodesy.

[26]  L. Chang,et al.  Medium‐scale traveling ionospheric disturbances triggered by Super Typhoon Nepartak (2016) , 2017 .

[27]  S. Schaer.  Mapping and predicting the Earth's ionosphere using the Global Positioning System. , 1999 .

[28]  J. Habarulema,et al.  Unexpected Southern Hemisphere ionospheric response to geomagnetic storm of 15 August 2015 , 2018 .

[29]  J. Bernard Minster,et al.  GPS detection of ionospheric perturbations following a space shuttle ascent , 1996 .

[30]  Heng Yang,et al.  Multi‐TID detection and characterization in a dense Global Navigation Satellite System receiver network , 2017 .

[31]  Jia Yue,et al.  Concentric traveling ionospheric disturbances triggered by the launch of a SpaceX Falcon 9 rocket , 2017 .

[32]  P. Dierckx.  An algorithm for smoothing, differentiation and integration of experimental data using spline functions , 1975 .

[33]  S. Sripathi,et al.  Ionospheric Response to 22–23 June 2015 Storm as Investigated Using Ground‐Based Ionosondes and GPS Receivers Over India , 2017 .

[34]  K. Shiokawa,et al.  Geomagnetic conjugate observations of large-scale traveling ionospheric disturbances using GPS networks in Japan and Australia , 2006 .

[35]  E. L. Afraimovich,et al.  GPS global detection of the ionospheric response to solar flares , 2000, physics/0007026.

[36]  A. Garcia-Rigo,et al.  The IGS VTEC maps: a reliable source of ionospheric information since 1998 , 2009 .

[37]  Richard B. Langley,et al.  Canadian High Arctic Ionospheric Network (CHAIN) , 2009 .

[38]  H. Takahashi,et al.  Ionospheric disturbances in the vicinity of the Chelyabinsk meteoroid explosive disruption as inferred from dense GPS observations , 2015 .

[39]  I. Cherniak,et al.  Large‐Scale Traveling Ionospheric Disturbances Origin and Propagation: Case Study of the December 2015 Geomagnetic Storm , 2018, Space Weather.

[40]  Xiaoqing Pi,et al.  Monitoring of global ionospheric irregularities using the Worldwide GPS Network , 1997 .

[41]  E. Afraimovich,et al.  Parameters of large‐scale TEC disturbances during the strong magnetic storm on 29 October 2003 , 2008 .

[42]  Heng Yang,et al.  Direct MSTID mitigation in precise GPS processing , 2017 .

[43]  N. Dashora,et al.  Climatological response of Indian low‐latitude ionosphere to geomagnetic storms , 2016 .

[44]  Werner Gurtner,et al.  RINEX - The Receiver Independent Exchange Format - Version 3.00 , 2007 .

[45]  Libo Liu,et al.  Solar activity effects of the ionosphere: A brief review , 2011 .

[46]  E. L. Afraimovich,et al.  The shock-acoustic waves generated by earthquakes , 2001 .

[47]  H. Le,et al.  Statistical analysis of ionospheric responses to solar flares in the solar cycle 23 , 2013 .

[48]  Michael Mendillo,et al.  Storms in the ionosphere: Patterns and processes for total electron content , 2006 .

[49]  Yulia S. Tumanova,et al.  Ionospheric perturbation indices based on the low- and high-orbiting satellite radio tomography data , 2017, GPS Solutions.

[50]  M. Abdullah,et al.  Total Electron Content Observations by Dense Regional and Worldwide International Networks of GNSS , 2018, Journal of Disaster Research.

[51]  Artem M. Padokhin,et al.  Influence of GPS/GLONASS differential code biases on the determination accuracy of the absolute total electron content in the ionosphere , 2015, Geomagnetism and Aeronomy.

[52]  Yu. V. Yasyukevich,et al.  Tool for Creating Maps of GNSS Total Electron Content Variations , 2018, 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama).

[53]  N. P. Perevalova,et al.  Investigation into impact of tropical cyclones on the ionosphere using GPS sounding and NCEP/NCAR Reanalysis data , 2011 .

[54]  I. Stanislawska,et al.  Derivation of a planetary ionospheric storm index , 2008 .

[55]  Yu. V. Yasyukevich,et al.  Ionospheric TEC estimation with the signals of various geostationary navigational satellites , 2015, GPS Solutions.