Ionisation in the Atmosphere

3-D model for cosmic ray planetary ionisation in the middle atmosphere

A 3-D planetary model of the cosmic ray electron production rate q(h) (cm−3 s−1) has been developed for the strato-mesosphere and lower thermosphere (altitude range 30–100 km) with a 10-km step. The spectrum of the primary cosmic rays is modelled by an analytical expression using input data from the CREME96 model. An isotropic penetration of the cosmic rays from the upper hemisphere is assumed ...

Methane in Kano-Nigeria atmosphere

ABSTRACT Methane concentrations in Kano municipality have been attributed to the burning of solid and fossil fuels and industrial processes. Using an automatic gas sampling system, methane in the Kano atmosphere was determined. Its distribution in the municipality was skewed towards high frequency of low concentration with a mean and standard deviation of 0.61? 0.39 ?g/m3. Similarly the distri...

the u.s. policy in central asia and its impact on the colored revolutions in the region (the case study of tulip revolution in kyrgyzstan)

چکیده ندارد.

Physical Simulation of Baroclinic Waves and Vortices in the Atmosphere

Simulations of ionisation triggering

We review recent pilot simulations that incorporate feedback from ionising radiation in SPH calculations of star forming clouds. In the case that the ionising radiation source is located within the star forming cloud, the inhomogeneity of the cloud significantly modifies the way that feedback operates compared with spherically symmetric cloud models. Inflow/outflow behaviour develops, combining...