Sun-stirred Kraken Mare: Circulation in Titan’s seas induced by solar heating and methane precipitation
Sun-stirred Kraken Mare: Circulation in Titan’s seas induced by solar heating and methane precipitation
复制标题
太阳搅动的克拉肯海:由太阳加热和甲烷沉淀引起的泰坦海洋环流
DOI:
10.1016/j.icarus.2015.08.033
复制
发表时间:
2015
期刊:
影响因子:
3.2
通讯作者:
R. Lorenz
中科院分区:
文献类型:
--
作者:
T. Tokano;R. Lorenz
Density-driven circulation in Titan’s seas forced by solar heating and methane evaporation/precipitation is simulated by an ocean circulation model. If the sea is transparent to sunlight, solar heating can induce anti-clockwise gyres near the sea surface and clockwise gyres near the sea bottom. The gyres are in geostrophic balance between the radially symmetric pressure gradient force and Coriolis force. If instead the sea is turbid and most sunlight is absorbed near the sea surface, the sea gets stratified in warm seasons and the circulation remains weak. Precipitation causes compositional stratification of the sea to an extent that the sea surface temperature can be lower than the sea interior temperature without causing a convective overturning. Non-uniform precipitation can also generate a latitudinal gradient in the methane mole fraction and density, which drives a meridional overturning with equatorward currents near the sea surface and poleward currents near the sea bottom. However, gyres are more ubiquitous than meridional overturning.
登录
查看更多内容
DOI:
10.1002/2014je004751
发表时间:
2015
期刊:
Journal of Geophysical Research: Planets
影响因子:
--
作者:
Tokano;Lorenz
通讯作者:
Lorenz
影响因子:
3.2
作者:
Tokano;Lorenz;Van Hoolst
通讯作者:
Van Hoolst
影响因子:
3.2
作者:
Tokano
通讯作者:
Tokano
影响因子:
3.2
作者:
Tokano
通讯作者:
Tokano