Third‐Order Structure Functions of Zonal Winds in the Thermosphere Using CHAMP and GOCE Observations
Facundo L. Poblet,
Huixin Liu,
Jorge L. Chau
Abstract:We use multi‐year observations of cross‐track winds (u) from the CHAllenging Minisatellite Payload (CHAMP) and the Gravity Field and Steady State Ocean Circulation Explorer (GOCE) to calculate third‐order structure functions in the thermosphere as a function of horizontal separation (s). They are computed using the mean (〈δu3〉) and the median and implemented over non‐polar satellite paths in both hemispheres. On height averages, 〈δu3〉 is shown to scale with s2 for s ≃ 80–1,000 km, in agreement with equivalent… Show more
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