Strategies for combating Space Weather Disturbances|
ATI's Space Weather and Telecommunications Systems course
- An Introduction to Space Weather. Overview. Relevance to technological systems.
- Origins of Space Weather. Analogies with everyday weather and climate.
Discussion of relevant features of the sun, the interplanetary medium, and the
magnetosphere. The solar wind and coronal holes, coronal mass ejections, energetic
particle events, flares, and impulsive phenomena that introduce media effects such as
Sudden Ionospheric Disturbances (SIDs) and magnetic storms. Media effects and
telecommunication system responses. All of this information is conveyed in a
scholarly but intertaining manner with many graphical illustrations.
- Properties of the Atmospheric Medium as part of the Radio Propagation
Channel. Generalized refractive index and radiowave interactions. Refraction,
absorption, attenuation, scattering, and ducting. Order of magnitude of effects given
- The Magneto-ionic Medium and its Importance in Radio propagation. The
Appleton-Hartree equation which governs radio propagation in the ionosphere.
Effects such as irregular refraction, absorption, time delay, phase distortion,
scintillation, birefringence, Faraday rotation, Doppler shift and spread, radiowave
scintillation, time delay distortion and multipath spread of signals. Order of
magnitude of effects and consequences for system performance.
- The Ionosphere. Its properties and significance. Layer formation and climatology.
Anomalous behavior and relationships with solar flares and magnetic storms. Role of
the ionosphere in the early development of communication and radar technologies.
Models and applications of models. Forecasting technologies such as persistence,
neural networks, and dynamic mapping of ionospheric features.
- Telecommunications Systems Hierarchy. Characterization of Telecommunication
Systems by Frequency Regime or Mission Area.
- Diversity as the primary Method for improvement of system performance in the
face of deleterious effects arising from Space Weather. Description of various
- Examination of specified HF Communication and Radar Systems. HF long-haul
communication, Automatic Link Establishment (ALE) systems, maritime systems,
Over-the-horizon radar, and HF data link communication systems. Outline of major
HF system performance models such as VOACAP, ICEPAC, and REC533. Lessons
in use of software are a part of this course element.
- Examination of specified Satellite Communication and Surveillance Systems.
Military and civilian systems. Link performance calculations. A global model for
scintillation and its application at ground stations located in polar, auroral,
midlatitude, and equatorial regions. DoD methods of scintillation forecasting based
upon real-time assessment (i.e. , C/NOFS). Engineering solutions for scintillation
- Examination of specified Satellite Navigation Systems. Legacy systems and satellite
systems (GPS), Aviation and Precision Landing systems (WAAS). Error budgets and
the impact of major geomagnetic storms. Real world examples.
- Propagation Tactics in military and civilian systems. How knowledge of the
medium and precise forecasts of potential impairments can be used to advantage.
- Prediction Services and System Resources. NOAA, NASA, DoD, Industry, and
international services. Satellite sensors used for ionospheric and solar observation.
Terrestrial sounding systems and media surveillance technologies.
- Research Activities and Programs. Space-Weather RDT&E in USA, Europe, Asia,
- The future of Space-Weather. On development of a scorecard for telecommunication
systems vis-à-vis space weather impairments.
For dedicated on-site pricing and availability request information HERE.