Navigation/Communication | iswat-cospar.org

Navigation/Communications

Moderator: TBD

Navigation and positioning accuracy are affected by the state of the ionosphere, which depends on variations in solar EUV emissions, geomagnetic activity, and season.

GNSS positioning can be seriously impacted by ionospheric scintillations. These rapid fluctuations of radio signal phase and/or amplitude, generated as it passes through the ionosphere, essentialy occur when the signal traverses a region of small scale irregularities in electron density. The impact is mainly equatorial in the dusk sector, and at high-latitude.

Radar performance (due to single frequency) is affected by TEC and TEC gradients, and as a consequence so is the accuracy with which the trajectories of objects can be computed.

Relevant clusters

Ionosphere -- G2B

EUV emissions -- S2, S3

Geomagnetic activity -- G1

Action Teams:

S3-06: Flare precursors (Lead: Larisza Krista larisza.krista@gmail.com )

S3-05: Understanding the Onset of CMEs/Eruptive Flares (Lead: Spiro Antiochos spiro.antiochos@nasa.gov Mark Linton mark.linton@nrl.navy.mil )

S3-04: Radio Observations of the Sun and Heliosphere (Lead: Pietro Zucca zucca@astron.nl )

S3-01: Flare Scoreboard (Lead: TBD TBD TBD@TBD )

S2-06: Origins of the Spectral Irradiance and its Intermediate Timescale Variability (Lead: James Klimchuk James.A.Klimchuk@nasa.gov Sherry Chhabra Chhabra.Sherry@gmail.com )

S2-05: Sun-Spacecraft and Sun-Earth Magnetic Connectivity (Lead: Rui Pinto rui.pinto@irap.omp.eu Jon Linker linkerj@predsci.com )

S2-03: Global Solar Magnetic Field Working Team (Lead: Carl Henney cjhenney@gmail.com Nick Arge charles.n.arge@nasa.gov )

S2-02: Solar Indices and Irradiance Working Team (Lead: Carl Henney cjhenney@gmail.com Karin Muglach karin.muglach@nasa.gov )

S1-02: Worst-case scenario for extreme solar events (Lead: Ilya Usoskin ilya.usoskin@oulu.fi )

O3-02: SPARC (Lead: Zafar Iqbal zaf@sparc.space )

O2-05: HAPI Standard Development and Promulgation (Lead: Jon Vandegriff jon.vandegriff@jhuapl.edu Robert Weigel rweigel@gmu.edu )

O2-04: Digital Object Identifiers to support Space Weather (Lead: Guido De Marchi gdemarchi@esa.int Aaron Roberts aaron.roberts@nasa.gov )

H3-03: Heliophysics for Artemis and Beyond (Lead: Alexa Halford Alexa.J.Halford@nasa.gov Brian Walsh bwalsh@bu.edu Eddie Semones edward.j.semones@nasa.gov )

G2B-11: Space weather effects on the D-region: measurements, monitoring, and modelling (Lead: Carine Briand Carine.briand@obspm.fr Mark Clilverd macl@bas.ac.uk )

G2B-10: Modelling and Forecasting Ionospheric TEC/Scintillations based on Artificial Intelligence Methods (Lead: Devanaboyina Venkata Ratnam dvratnam@kluniversity.in Pasumarthi Babu Sree Harsha harry9harsha@gmail.com Gampala Siva Vara Prasad gsivavaraprasad@gmail.com )

G2B-09: Ionospheric Scoreboard Development (Lead: Katherine Garcia-Sage katherine.garcia-sage@nasa.gov )

G2B-08: Ground-based and space borne HF-VHF ionospheric investigations (Lead: Hanna Rothkaehl hrot@cbk.waw.pl Maaijke Mevius mevius@astron.nl )

G2B-07: HamSCI: Ham Radio Science Citizen Investigation (Lead: Nathaniel Frissell nathaniel.frissell@scranton.edu Phil Erickson pje@mit.edu )

G2B-06: Global and Regional Ionospheric Total Electron Content (Lead: Ludger Scherliess ludger.scherliess@usu.edu )

G2B-05: Ionosphere Plasma Density: NmF2/foF2, hmF2, TEC (Lead: Ioanna Tsagouri tsagouri@noa.gr )

G2B-04: Ionospheric perturbation indices and scales (Lead: Norbert Jakowski norbert.jakowski@dlr.de )

G2B-03: LW-Sun-Ionosphere nexus (Lead: Dr. Shanmugha Sundaram G A ga_ssundaram@cb.amrita.edu )

G2B-02: Ionospheric Plasma Irregularities and Their Impact on Trans-ionospheric Radio Waves. (Lead: Wojciech Miloch w.j.miloch@fys.uio.no )

G2B-01: TechTIDE (Lead: Anna Belehaki belehaki@noa.gr )

G2A-02: Space Weather and Lower Atmosphere (Lead: Jia Yue jia.yue@nasa.gov )

G1-03: Auroral Precipitation and High Latitude Electrodynamics (AuroraPHILE) (Lead: Bob Robinson robert.m.robinson@nasa.gov Katie Garcia-Sage katherine.garcia-sage@nasa.gov )

G1-02: Mid-to-Low-Latitude Space Weather Effects (Lead: Katariina Nykyri nykyrik@erau.edu Xuanye Ma max@erau.edu )