Climate Dynamics

, Volume 41, Issue 11, pp 3317–3324

Influence of springtime North Atlantic Oscillation on crops yields in Northeast China

Authors

    • Nansen-Zhu International Research Centre, Institute of Atmospheric PhysicsChinese Academy of Sciences
    • Climate Change Research CenterChinese Academy of Sciences
    • University of Chinese Academy of Sciences
    • Nansen-Zhu International Research Centre, Institute of Atmospheric PhysicsChinese Academy of Sciences
    • Climate Change Research CenterChinese Academy of Sciences
  • Song Yang
    • Climate Prediction CenterNOAA
  • Ke Fan
    • Nansen-Zhu International Research Centre, Institute of Atmospheric PhysicsChinese Academy of Sciences
    • Climate Change Research CenterChinese Academy of Sciences
Article

DOI: 10.1007/s00382-012-1597-4

Cite this article as:
Zhou, M., Wang, H., Yang, S. et al. Clim Dyn (2013) 41: 3317. doi:10.1007/s00382-012-1597-4

Abstract

Forecasting grain production is of strategic importance in considerations of climate change and growing population. Here we show that the springtime North Atlantic Oscillation (NAO) is significantly correlated to the year-to-year increment of maize and rice yield in Northeast China (NEC). The physical mechanism for this relationship was investigated. Springtime NAO can induce sea surface temperature anomalies (SSTAs) in the North Atlantic, which display a tripole pattern and are similar to the empirical mode pattern in spring. The spring Atlantic SSTA pattern that could persists to summer, can trigger a high-level tropospheric Rossby wave response in the Eurasia continent, resulting in atmospheric circulation anomalies over the Siberia-Mongolia region, which is unfavorable (favorable) for cold surges that affect NEC. Weaker (stronger) cold surges can accordingly reduce (increase) cloud amount, resulting in an increase (a decrease) in daily maximum temperature and a decrease (an increase) in daily minimum temperature, thereby leading to an increase (a decrease) in diurnal temperature range. And summer-mean daily minimum temperature and diurnal temperature range are most significantly related to the NEC crop yields.

Keywords

NAO Crop yields Teleconnection Year-to-year increment

Copyright information

© Springer-Verlag Berlin Heidelberg 2012