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Group Meeting

Group Meeting. Pei-Yu Chueh 2010/05/04.

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Group Meeting

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  1. Group Meeting Pei-Yu Chueh 2010/05/04

  2. Meehl et al. reported that in their model increased solar irradiance over land during summer solar maximum conditions helped intensify the monsoons, and more solar radiation over cloud free regions increased evaporation and moisture convergence.(atmospheric response) • Van Loon et al. suggested that TSI forcing in the subtropics created temperature gradients and wind conditions that excite an ocean dynamical response, particularly that associated with La nina during Northern Hemisphere winter.(ocean dynamical heating) • The influence of UV variations in the stratosphere, which is known to respond to solar forcing with warming and increased ozone during solar maximum conditions. D. Rind et al. , Exploring the stratospheric/tropospheric response to solar forcing

  3. 11-yr solar cycle may produce significant responses in the troposphere and ocean. Specifically for the Indo-Pacific region. • Some studies suggest that solar signal is preferentially strong in subtropical Pacific areas and affects the moisture transport and precipitation in these regions (van Loon et al. 2004, 2007). GERALD A. MEEHL, A Coupled Air–Sea Response Mechanism to Solar Forcing in the Pacific Region

  4. With present-day greenhouse gas and aerosol conditions, the ascending branch of the Hadley cell is enhanced near the equator, and the intertropical convergence zone (ITCZ) is shifted northward in response to solar forcing during the boreal winter. • Enhancement of the meridionally averaged vertical velocity over the western Pacific indicates strengthening of the Walker circulation in response to solar forcing in both solstice seasons. JAE N. LEE et al., The Influence of Solar Forcing on Tropical Circulation

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