Abstract
Considering the big climate changes of the recent centuries and the predictions
of future changes, it becomes increasingly important to understand
what mechanisms drive climate. One such mechanism, that has been held
responsible for changes in cloud cover during the last 25 years, for the Little
Ice Age, the Medieval Warmth, and other climate phenomena going further
back in time, is that of Ion Induced Nucleation { the ability of ions to enhance
the formation of aerosol particles in the atmosphere. Several nucleation
events that cannot be explained with the standard theory of homogeneous
nucleation have been speculated to be caused by ions. Correlations between
ionisation sources and climate parameters have been put forth, and experiments
with extreme gas or ion concentrations have shown an eect of the
ions. The relevance of Ion Induced Nucleation is, however, still undergoing
debate [1, p. 188]. In this study 3 dierent experimental setups were employed
to investigate the eect of ions on aerosol processes under atmospheric
conditions.
1
of future changes, it becomes increasingly important to understand
what mechanisms drive climate. One such mechanism, that has been held
responsible for changes in cloud cover during the last 25 years, for the Little
Ice Age, the Medieval Warmth, and other climate phenomena going further
back in time, is that of Ion Induced Nucleation { the ability of ions to enhance
the formation of aerosol particles in the atmosphere. Several nucleation
events that cannot be explained with the standard theory of homogeneous
nucleation have been speculated to be caused by ions. Correlations between
ionisation sources and climate parameters have been put forth, and experiments
with extreme gas or ion concentrations have shown an eect of the
ions. The relevance of Ion Induced Nucleation is, however, still undergoing
debate [1, p. 188]. In this study 3 dierent experimental setups were employed
to investigate the eect of ions on aerosol processes under atmospheric
conditions.
1
| Originalsprog | Engelsk |
|---|
| Udgivelsessted | Kemisk Institut, Københavns Universitet |
|---|---|
| Antal sider | 147 |
| Status | Udgivet - 2008 |