First steps toward a new class of statistical convection models

Details First steps toward a new class of statistical convection models First steps toward a new class of statistical convection models

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsa23b1475b&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SA23B-1475

Physics

[2712] Magnetospheric Physics / Electric Fields, [2736] Magnetospheric Physics / Magnetosphere/Ionosphere Interactions, [2760] Magnetospheric Physics / Plasma Convection

Scientific paper

The pioneering work of Gary Abel, Mervyn Freeman [2002, 2006], and Murray Parkinson [2006] have examined the complex nature of convection observed by SuperDARN. They have shown that the convection velocity is highly variable in both time and space, with spatial and temporal correlations without characteristic scales. Current statistical convection models do not account for any variability beyond that of the IMF time series with which they are driven. They do, however, produce a pattern of convection that seem to represent the average of the observations. This work presents the initial steps toward developing a new convection model that will account for the variable nature of velocity, while retaining the average behavior of current models. The presentation examines the statistics of the velocity fluctuations and random number generators that have the same distributions. The next steps are to to enforce some temporal and spatial correlations that will generate the convection patterns observed on average. Abel, G. A., M. P. Freeman, (2002) A statistical analysis of ionospheric velocity and magnetic field power spectra at the time of pulsed ionospheric flows. J. Geophys. Res. 107, 1470, doi:10/1029/2002JA009402 Abel, G. A., M. P. Freeman, and G. Chisham (2006) Spatial structure of ionospheric convection velocities in regions of open and closed magnetic field topology. Geophys. Res. Lett. 33, doi 10.1029/2006GL027919 Parkinson, M. L., (2006) Dynamical critical scaling of electric field fluctuations in the greater cusp and magnetotail implied by HF radar observations of F-region Doppler velocity. Ann. Geophys., 24, 689-705

Affiliated with

Also associated with

No associations

Rating

First steps toward a new class of statistical convection models 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 First steps toward a new class of statistical convection models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First steps toward a new class of statistical convection models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1778837