|
vk3pa
Deceased
Australia
1714 Posts |
 Posted - 28 May 2006 : 08:23:50 AM
|
Propagation Tidbit -- As we move into summer, we'll see a decrease in
daytime F2 region MUFs. This is in large part due to a change in the
composition of the atmosphere at F2 region altitudes. Summer brings
decreased ratios of O (atomic oxygen) to O2 (molecular oxygen) and of O to
N2 (molecular nitrogen). Since the electron production rate at F2 region
altitudes depends on the concentration of O, whereas the electron loss rate
is controlled by O2 and N2, a decrease in O to O2 and O to N2 ratios leads
to lower daytime MUFs in the summer.
we are referenced to nth hemi..
|
|
a decrease in daytime F2 region MUFs
