Prediction of AL and Dst Indices from ACE Measurements Using Hybrid Physics/Black-Box Techniques

Details Prediction of AL and Dst Indices from ACE Measurements Using Hybrid Physics/Black-Box Techniques Prediction of AL and Dst Indices from ACE Measurements Using Hybrid Physics/Black-Box Techniques

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm23b1716s&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #SM23B-1716

Computer Science

Performance

7924 Forecasting (2722), 7954 Magnetic Storms (2788), 7959 Models

Scientific paper

ACE measurements of the solar wind velocity, IMF and proton density is used to drive a hybrid Physics/Black- Box model of the nightside magnetosphere. The core physics is contained in a low order nonlinear dynamical model of the nightside magnetosphere called WINDMI. The model is augmented by wavelet based nonlinear mappings between the solar wind quantities and the input into the physics model, followed by further wavelet based mappings of the model output field aligned currents onto the ground based magnetometer measurements of the AL index and Dst index. The black box mappings are introduced at the input stage to account for uncertainties in the way the solar wind quantities are transported from the ACE spacecraft at L1 to the magnetopause. Similar mappings are introduced at the output stage to account for a spatially and temporally varying westward auroral electrojet geometry. The parameters of the model are tuned using a genetic algorithm, and trained using the large geomagnetic storm dataset of October 3-7 2000. It's predictive performance is then evaluated on subsequent storm datasets, in particular the April 15-24 2002 storm. This work is supported by grant NSF 7020201

Affiliated with

Also associated with

No associations

Rating

Prediction of AL and Dst Indices from ACE Measurements Using Hybrid Physics/Black-Box Techniques does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Prediction of AL and Dst Indices from ACE Measurements Using Hybrid Physics/Black-Box Techniques, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prediction of AL and Dst Indices from ACE Measurements Using Hybrid Physics/Black-Box Techniques will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1095172