Physics – Geophysics
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30i..45s&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 9, pp. 45-1, CiteID 1492, DOI 10.1029/2002GL016649
Physics
Geophysics
1
Mathematical Geophysics: Modeling, General Or Miscellaneous: Techniques Applicable In Three Or More Fields, Ionosphere: General Or Miscellaneous
Scientific paper
High dimensional model representation (HDMR), a technique useful for reducing the computational burden of complex geophysical models, is applied to a global first principles model of the ionosphere/thermosphere system. HDMR captures the input-output relationship of a model with a series of correlation functions that accurately represents the original model. The resulting Fully Equivalent Operational Model (FEOM) of ionospheric electron density ([e]) described herein is derived from the Integrated Space Weather Prediction Model (ISM). It reproduces ISM [e] with errors of less than 3% over 97% of the three-dimensional ISM grid. The observed factor of 103 speed up in CPU time demonstrates the feasibility of using HDMR to construct a fast and accurate ionospheric model based on first principles model output.
Li Gaojun
Rabitz Herschel
Schoendorf Jacqueline
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