Sökning: "WACCM"
Hittade 4 avhandlingar innehållade ordet WACCM.
1. Solar Forcing of Nitric Oxide in the Upper Atmosphere
Sammanfattning : The forcing of the Sun on Earth's atmosphere manifests itself via solar radiation and energetic particle precipitation (EPP), which variations are most noticeable in the upper regions of the atmosphere. A key species in the lower thermosphere, which is influenced by solar forcing, is nitric oxide (NO). LÄS MER
2. Variability and feedbacks in the middle atmosphere
Sammanfattning : The importance of the middle atmosphere for the weather and climate on Earth is increasingly realized. Variability and feedback processes in the middle atmosphere need to be better understood and form the subject of this thesis. LÄS MER
3. Ground based measurements of upper atmospheric CO and H2O using microwave radiometry
Sammanfattning : Long series of continuous measurements of middle and upper atmospheric constituents are needed to be able to understand the anthropogenic influence on the atmosphere. Phenomena like ozone depletion and the enhanced greenhouse effect are examples where the role of human activities has to be well investigated in order to make the right decisions of necessary changes in our way of life. LÄS MER
4. Seasonality and variability of stratospheric water vapour
Sammanfattning : Stratospheric water vapour (SWV) plays a critical role in the climate system by modulating the radiation budget and influencing the stratospheric chemistry. Studying changes of SWV on global scale is helpful for our understanding of climate change. LÄS MER