Iron and sodium Doppler/temperature lidar studies of the upper mesosphere
type: CreativeWork
description: Lidar measurements of mesospheric Fe were conducted at Urbana, Illinois, during four nights in late October 1989. The average Fe abundances, layer centroid heights and rms widths varied between 1.0-2.0 $\times$ 10$\sp{10}$ cm$\sp{-2}$, 89.0-90.5 km and 3.2-4.1 km, respectively. The peak densities of the layer near 90 km varied between 15-25 $\times$ 10$\sp3$ cm$\sp{-3}$. On three nights the formation and dissipation of three large sporadic Fe (Fe$\sb{\rm s}$) layers were observed.
abstract: Lidar measurements of mesospheric Fe were conducted at Urbana, Illinois, during four nights in late October 1989. The average Fe abundances, layer centroid heights and rms widths varied between 1.0-2.0 $\times$ 10$\sp{10}$ cm$\sp{-2}$, 89.0-90.5 km and 3.2-4.1 km, respectively. The peak densities of the layer near 90 km varied between 15-25 $\times$ 10$\sp3$ cm$\sp{-3}$. On three nights the formation and dissipation of three large sporadic Fe (Fe$\sb{\rm s}$) layers were observed.
author: Bills, Richard Earl
language: eng
keywords: Engineering, Electronics and Electrical, Physics, Atmospheric Science, Physics, Optics
date published: 2011-05-07T12:57:09Z
date modified: 2026-07-22T22:25:17Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/21059