| Autor: |
Chahine, M. T., Chen, Luke, Dimotakis, Paul, Jiang, Xun, Li, Qinbi, Pagano, Thomas, Randerson, James T., Yung, Yuk L. |
| Jazyk: |
angličtina |
| Rok vydání: |
2008 |
| Předmět: |
|
| Popis: |
Human activity has increased the concentration of the earth's atmospheric carbon dioxide, which plays a direct role in contributing to global warming. Mid-tropospheric CO_2 retrieved by the Atmospheric Infrared Sounder shows a substantial spatiotemporal variability that is supported by in situ aircraft measurements. The distribution of middle tropospheric CO_2 is strongly influenced by surface sources and large-scale circulations such as the mid-latitude jet streams and by synoptic weather systems, most notably in the summer hemisphere. In addition, the effects of stratosphere-troposphere exchange are observed during a final stratospheric warming event. The results provide the means to understand the sources and sinks and the lifting of CO_2 from surface layers into the free troposphere and its subsequent transport around the globe. These processes are not adequately represented in three chemistry-transport models that have been used to study carbon budgets. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
