caa a22 4500 605471908 CHVBK 20210128100335.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s00382-015-2546-9 doi (NATIONALLICENCE)springer-10.1007/s00382-015-2546-9 Recent recovery of surface wind speed after decadal decrease: a focus on South Korea [Elektronische Daten] [JongChun Kim, Kyungrock Paik] We investigate the multi-decadal variability of observed surface wind speed around South Korea. It is found that surface wind speed exhibits decreasing trend from mid-1950s until 2003, which is similar with the trends reported for other parts of the world. However, the decreasing trend ceases and becomes unclear since then. It is revealed that decreasing wind speed until 2003 is strongly associated with the decreasing trend of the spatial variance in both atmospheric pressure and air temperature across the East Asia for the same period. On the contrary, break of decreasing trend in surface wind speed since 2003 is associated with increasing spatial variance in surface temperature over the East Asia. Ground observation shows that surface wind speed and air temperature exhibit highly negative correlations for both summer and winter prior to 2003. However, since 2003, the correlations differ between seasons. We suggest that mechanisms behind the recent wind speed trend are different between summer and winter. This is on the basis of an interesting finding that air temperature has decreased while surface temperature has increased during winter months since 2003. We hypothesize that such contrasting temperature trends indicate more frequent movement of external cold air mass into the region since 2003. We also hypothesize that increasing summer wind speed is driven by intrusion of warm air mass into the region which is witnessed via increasing spatial variance in surface temperature across East Asia and the fact that both air and surface temperature rise together. Springer-Verlag Berlin Heidelberg, 2015 Wind speed nationallicence Climate change nationallicence Temporal trends nationallicence Interannual variability nationallicence Stilling nationallicence Kim JongChun School of Civil, Environmental, and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, 136-713, Seoul, South Korea aut Paik Kyungrock School of Civil, Environmental, and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, 136-713, Seoul, South Korea aut Climate Dynamics Springer Berlin Heidelberg 45/5-6(2015-09-01), 1699-1712 0930-7575 45:5-6<1699 2015 45 382 https://doi.org/10.1007/s00382-015-2546-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00382-015-2546-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim JongChun School of Civil, Environmental, and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, 136-713, Seoul, South Korea aut NATIONALLICENCE 700 1- Paik Kyungrock School of Civil, Environmental, and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, 136-713, Seoul, South Korea aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 45/5-6(2015-09-01), 1699-1712 0930-7575 45:5-6<1699 2015 45 382