Precipitation Maps to Magnetotail Imager: Monitoring the Magnetosphere from Low-Altitude Particles and Images

Details Precipitation Maps to Magnetotail Imager: Monitoring the Magnetosphere from Low-Altitude Particles and Images Precipitation Maps to Magnetotail Imager: Monitoring the Magnetosphere from Low-Altitude Particles and Images

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm31c..05n&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM31C-05

Other

2716 Energetic Particles, Precipitating, 2736 Magnetosphere/Ionosphere Interactions

Scientific paper

Low-altitude satellites cut rapidly across magnetic field lines, sampling large volumes of the magnetosphere in impressively short times. Therefore, throughout the majority of the magnetosphere which is isotropic, densities, temperatures, pressure, and their gradients can be measured. Even in the remainding minority of the magnetosphere, the field-aligned component can be sampled. As the practical utility of monitoring the magnetosphere from low altitude particle and auroral observations grows, natural skepticism about deconvolution issues arise. We here show that ample hard evidence of the validity of low-altitude monitoring exists For example, composite partial "images" of the magnetotail plasma population can be formed. The results both statistically agree with (while going beyond) high-altitude observations, and also have direct verification from some case studies. Likewise, Polar UVI observations of equatorward moving auroral fingers have been shown to correspond well with bursty bulk flows observed in the magnetotail. As yet another example, it has been recently confirmed that the magnetotail magnetic configuration estimated by models can be greatly improved by the use of plasma pressure profiles inferred entirely from low-altitude data.

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