Save
Email
Print
ShareJan. 30, 2010 — To what extent does what's happening in the stratosphere, tens of kilometers above Earth, influence the weather in the troposphere, the layer of atmosphere that touches Earth?
Gerber et al. performed a series of forecast experiments using a general circulation model to study the role of the stratosphere in influencing tropospheric weather following sudden stratospheric warming events. It is known that the troposphere influences the stratosphere in driving these events, but scientists were unsure of whether the stratosphere actively influenced the troposphere.
The authors found that the stratosphere does indeed influence the troposphere, although this influence is weak and easily masked by tropospheric variability.
The results indicate that improved resolution in stratospheric simulations would probably lead to better weather forecasts.
The research appears in the journal Geophysical Research Letters.
Authors include E. P. Gerber, Center for Atmosphere Ocean Science, Courant Institute, New York University; C. Orbe and L. M. Polvani, Department of Applied Physics and Applied Mathematics and Department of Earth and Environmental Science, Columbia University.
Other social bookmarking and sharing tools:
Story Source:
The above story is reprinted from materials provided by American Geophysical Union.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- Gerber et al. Stratospheric influence on the tropospheric circulation revealed by idealized ensemble forecasts. Geophysical Research Letters, 2009; 36 (24): L24801 DOI: 10.1029/2009GL040913
Note: If no author is given, the source is cited instead.
more 
