- GIC flow also in pipelines but the major interest is in GIC impacts on power grids.
Disturbances propagate from the surface of the Sun to the Earth in about 1-2 days.
Solar wind propagates from L1 (1.5 million km upstream) to Earth in about 30-60 min.
NASA Research and Research Missions: Addressing Space Weather Hazards
NASA Research & Research Missions: <br />Addressing Space Weather Hazards<br />Michael Hesse<br />Chief, Space Weather Laboratory<br />NASA GSFC<br />49th Robert H. Goddard Memorial Symposium<br />- More than you imagine -<br />March 31, 2011<br />
Elements of Space Weather Forecasting<br /><ul><li>Knowledge (Research)
The RBSP Space Weather (SW) broadcast will be a transmission like those on ACE and STEREO.
Ground processing for SWx products will be provided by receiving organization(s). </li></li></ul><li>
Forecast model development at NASA<br />NASA, together with partner agencies, such as NSF, AFOSR, and ONR, sponsors the development of models, which:<br /><ul><li>Contribute to resolving scientific puzzles
19<br />Solar Shield:Protecting the Power Grid<br />Geomagnetically induced current (GIC)<br />
Level 1 forecasts<br />NASA observations of explosions on the Sun drive modern model calculations. SOHO and STEREO data used.<br />Model output at the Earth used in a statistical model tp provide probabilistic estimate for GIC at individual nodes of the power grid. GIC forecast file is generated.<br />Model propagates the disturbance to the Earth through interplanetary space. Computations carried out at the Space Weather Laboratory.<br />20<br />April 3, 2008<br />
NASA ACE Lagrange 1 observations used as boundary conditions for magnetospheric model.<br />Model output used to drive geomagnetic induction and GIC code providing GIC at individual nodes of the power grid. GIC forecast file is generated. <br />Magnetospheric model used to model the current flow in the Earth’s upper atmosphere. Computations carried out at the Space Weather Laboratory at GSFC.<br />21<br />April 3, 2008<br />
Coupling to the SUNBURST research support tool<br />% Level 1 GIC forecast produced by REALTIMEGIC_LEVEL1<br />%<br />% The format of the data is as follows: <br />% 0 0 0 0 0 lat1 lon1 lat2 lon2 . . .<br />% yy mm dd hh mi GIC1low GIC1high GIC2low GIC2high . . .<br />%<br /> 0 0 0 0 53.16 -99.29 45.39 -68.53<br />2006 12 14 14 6 76 15 153<br />% Level 2 GIC forecast produced by REALTIMEGIC_LEVEL2<br />% <br />% The format of the data is as follows: <br />% 0 0 0 0 0 0 lat1 lon1 lat2 lon2 . . .<br />%<br /> 0 0 0 0 0 0 53.16 -99.29 45.39 -68.53<br />2008 03 19 11 02 31 -0.11 0.00 0.13 0.00 <br />2008 03 19 11 04 31 0.02 0.00 0.03 0.00 <br />2008 03 19 11 06 31 -0.02 0.00 0.04 0.00 <br />2008 03 19 11 08 31 0.00 0.00 0.01 0.00 <br />22<br />Unique and innovative capability<br />
Innovative dissemination<br />One-stop shop for state-of-the-art information<br />> 200 SWx Tools<br />Flexible to adapt<br /> to changing model<br /> (and data) environment<br />User-configurable web-based system for analyzing space weather. Includes the most comprehensive list of SW data products and modeling results<br />iswa.ccmc.gsfc.nasa.gov<br />
Soon for Android</li></li></ul><li>Conclusions<br />NASA SMD missions and priorities are driven by scientific objectives, including the goal to understand Space Weather<br />NASA missions can, do, and will provide substantial and critical space weather information<br />With the growing use of assimilative models, ingestion of NASA-provided data streams can create invaluable input into space science and space weather models<br />NASA is proud of its contributions to real-time Space Weather forecasting, and we look forward to working with the partner agencies in the future.<br />