Seasonal Dependence of the Effect of Arctic Greening on Tropical Precipitation
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- Seasonal Dependence of the Effect of Arctic Greening on Tropical Precipitation
- Other Titles
- 극지역 녹화(greening)가 적도지역 강수에 미치는 영향
- Kang, Sarah M.
Frierson, Dargan M. W.
- Meteorology & Atmospheric Sciences
- arctic greening; atmospheric circulation
- Issue Date
- Kang, Sarah M., et al. 2015. "Seasonal Dependence of the Effect of Arctic Greening on Tropical Precipitation". JOURNAL OF CLIMATE, 28(15): 6086-6095.
- mospheric energy transport across the equator by an anomalous Hadley circulation, resulting in a northward shift of the tropical precipitation. In contrast, in boreal fall, the slight increase in insolation over the Arctic is more than offset by increased outgoing longwave radiation and reduced surface turbulent fluxes in midlatitudes, from the warmer atmosphere. As a result, the Northern Hemisphere atmosphere loses energy, which is compensated by a northward cross-equatorial atmospheric energy transport, leading to a southward shift of the tropical precipitation in boreal fall. Thus, although Arctic vegetation is changed throughout the year, its effect on tropical precipitation exhibits substantial seasonal variations.
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