Post on 14-Feb-2016
description
The Influence of Solar Variability on the Atmosphere
and Ocean Dynamics
Speaker: Pei-Yu Chueh Adviser: Yu-Heng Tseng
Date: 2010/09/09
Introduction
•Solar variability•Solar signals•The influence of solar forcing / the response of solar forcing
Observation•Atmosphere•Ocean
Model
•The coupled air-sea response mechanism to solar forcing. [Meehl et al., 2003; van Loon et al., 2007]
•The variations in stratospheric ozone in response to solar variability. [Haigh, 1996; Shindell et al., 1999; White, 2006]
Mechanism
Observation-Solar variability
• The variation of 1.4W/m2 observed between the 11-year cycle minimum in 1986 and maximum in 1991 could be deduced potentially to cause a mean increase in global average surface temperature of ca. 0.12 K .[Haigh, 2002]
Observation-Solar signals
[van Loon et al., 2000]
bathythermograph
[White et al., 1997]
Atmosphere Ocean
Mechanism
1. The coupled air-sea response mechanism to solar forcing. – Increased solar– Increased input in cloud free
areas– More vapor (precipitation)– More evaporation
(temperature)– Stronger trades
[Meehl et al., 2003; Van Loon et al., 2007]
Mechanism
2. The variations in stratospheric ozone in response to solar variability. – Solar irradiance – UV – O3 – Stratosphere– Troposphere warming– Heating ocean
[Haigh, 1996; Shindell et al., 1999; White, 2006]
Thank you!
The influence of solar forcing