During the northern hemisphere winter of 2003–2004 significant levels of stratospheric odd nitrogen (NOX) were observed descending from the mesosphere. Here we study subionospheric radio wave propagation data from Ny Ålesund, Svalbard, Norway to determine the origin of the mesospheric NOX. A clear change in the radio wave diurnal variation is observed, starting on January 13, 2004, lasting for 37 days. The behavior is consistent with the ionization, by Lyman-α, of thermospheric NOX descending into the mesosphere from altitudes above 90 km. Estimates of the concentration of NOX required to produce the observed ionization changes are consistent with the levels of previously published stratospheric mixing ratios after the NOX has descended into the stratosphere. The radio wave data shows that no significant proton or electron precipitation events into the mesosphere occurred at this time, and the mesospheric effects of the large storms in October/November 2003 had abated by late December 2003.
after the second child of the new open policy, many investors want to join in the children’s clothing market to tap their potential in the future, would like to open a children’s clothing stores to do business, and children’s clothing business needs a good display skills, only a good choice of skills, in order to better open up the market.
Combined with the
good display to make money, to make, this is no doubt that children should be good at business, from a practical point of view, only the selection of good skills, in order to better business, want better money, need to pay attention to many aspects.
contemporary parents fashion aesthetic is not general, therefore attaches great importance to the display of children’s clothing store, master’s stores display skills is very important, I hope everyone can Study hard, so that it can more easily start a successful children’s clothing stores.