A General Radiative Seasonal Climate Model Applied to Saturn, Uranus, and Neptune.

Details A General Radiative Seasonal Climate Model Applied to Saturn, Uranus, and Neptune. A General Radiative Seasonal Climate Model Applied to Saturn, Uranus, and Neptune.

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufm.p21b..06g&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #P21B-06

Physics

3305 Climate Change And Variability (1616, 1635, 3309, 4215, 4513), 3359 Radiative Processes, 6255 Neptune, 6275 Saturn, 6293 Uranus

Scientific paper

With similar compositions, a range of planet-sun distances, different orbital periods, and a variety of axial tilts, the Giant Planets are a unique test set for seasonal climate variation studies. We have created a general radiative seasonal climate model in an attempt to reproduce observed and predict future stratospheric temperatures of the Giant Planets. We present here a description of the radiative heating and cooling algorithms used in calculating the change in temperature with time. We will discuss the methods used to decrease run time, the opacity tables used, and indicate where more detailed opacity information would prove useful. We will use Saturn seasonal models to show the impact variations of the key coolants, acetylene and ethane, and the dominant heaters, methane and aerosols, have on predicted stratospheric temperatures. We will also present the initial results from the application of our model to the atmospheres of Uranus and Neptune. The same planet independent heating/cooling code implemented in our radiative seasonal climate model is being incorporated into the global circulation model EPIC. This work was funded by NASA PATM grants NNX08AE64G and NNX08AL95G.

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