Solar EUV flux, exospheric temperature and thermospheric wind inferred from incoherent scatter measurements of the electron density profile at Millstone Hill and Shigaraki | Zendy

Zhang ShunRong | Zendy; Oliver William L. | Zendy; Holt John M. | Zendy; Fukao Shoichiro | Zendy

Premium

Solar EUV flux, exospheric temperature and thermospheric wind inferred from incoherent scatter measurements of the electron density profile at Millstone Hill and Shigaraki

Author(s) -

Zhang ShunRong,

Oliver William L.,

Holt John M.,

Fukao Shoichiro

Publication year - 2002

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/2001gl013579

Subject(s) - millstone hill , exosphere , incoherent scatter , flux (metallurgy) , noon , extreme ultraviolet lithography , solar wind , thermosphere , physics , ionosphere , atmospheric sciences , electron density , solar minimum , environmental science , solar cycle , electron , plasma , geophysics , optics , materials science , ion , quantum mechanics , metallurgy

We explore a method for inferring solar EUV flux, atmospheric composition and wind using ionospheric electron density N e profile measurements. Incoherent scatter radar data from Millstone Hill and Shigaraki measured on October 5, 1989 are assimilated into a theoretical model whose driving forces, solar EUV flux, exosphere temperature T ex , and meridional wind, are adjustable. Adjustments are made to give best match between the model N e profile and the data. The derived T ex values, found to be low near noon at Millstone and high in the afternoon at Shigaraki, are essentially those required to give the [O]/[N 2 ] ratio necessary to fit the data. Our inferred EUV fluxes for the two sites are similar. Our technique of using profile data may resolve the ambiguity in deriving EUV and [O]/[N 2 ] from electron‐density measurements.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research