Mesospheric Mg species from space

Space-borne measurements of mesospheric magnesium species – a retrieval algorithm and preliminary profiles

We present a joint retrieval as well as first results for mesospheric air density and mesospheric Magnesium species (Mg and Mg) using limb data from the SCIAMACHY instrument on board the European ENVISAT satellite. Metallic species like neutral Mg, ionized Mg and others (Fe, Si, Li, etc.) ablate from meteoric dust, enter the gas phase and occur at high altitudes (≥70 km). Emissions from these s...

First space-borne measurements of the altitude distribution of mesospheric magnesium species

First mesospheric in-situ measurement in Iran using sounding rockets and plasma impedance probe (PIP)

This paper reports on the progress for the first development of rocket probe for in-situ measurement of ionospheric plasma parameters in Iran. The designed probe known as Plasma Impedance Probe (PIP) will be used to measure the electron density, electron-neutral collision frequency, background magnetic field, and temperature in the mesospheric and in the altitude range of 70 km to 150 km. This ...

A new method to derive middle atmospheric temperature profiles using a combination of Rayleigh lidar and O2 airglow temperatures measurements

The vertical temperature profiles in a typical Rayleigh lidar system depends on the backscatter photon counts and the CIRA-86 model inputs. For the first time, we show that, by making simultaneous measurements of Rayleigh lidar and upper mesospheric O2 temperatures, the lidar capability can be enhanced to obtain mesospheric temperature profile up to about 95 km altitudes. The obtained results a...

Isolated lower mesospheric echoes seen by MF radar

Isolated lower mesospheric echoes seen by medium frequency radar at 70 N, 19 E C. M. Hall, A. H. Manson, C. E. Meek, and S. Nozawa Tromsø Geophysical Observatory, University of Tromsø, Tromsø, Norway Institute of Space and Atmospheric Studies,University of Saskatchewan, Saskatoon, Canada The Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Japan Received: 16 June 2006 – Acce...