caa a22 4500 605471738 CHVBK 20210128100334.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s00382-014-2417-9 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2417-9 Interannual variability of the spring atmospheric heat source over the Tibetan Plateau forced by the North Atlantic SSTA [Elektronische Daten] [Yangfan Cui, Anmin Duan, Yimin Liu, Guoxiong Wu] Data analysis indicates that the interannual variability of the spring atmospheric heat source over the Tibetan Plateau (TP) depends largely on the intensity of the overlying subtropical westerly jet (WJ), which is closely related to the early spring (February-March-April) sea surface temperature anomaly (SSTA) tripole pattern over the North Atlantic, i.e., the SSTA tripole pattern with a warm core to the southeast of Newfoundland and two cold cores to the south of Iceland and southeast of Bermuda, respectively. Such an SSTA pattern can be regarded as a response to the atmospheric forcing of the preceding January-February-March North Atlantic Oscillation. Numerical experiment results from both linear baroclinic model with an idealized diabatic heating profile and an atmospheric general circulation model with prescribed SSTA forcing demonstrate that the warm core alone of the tripole pattern can stimulate a steady downstream Rossby wave train, which further intensifies the spring WJ over the TP. As a result, a positive anomaly of surface sensible heating occurs over most parts of the TP, whereas the precipitation and corresponding latent heating is characterized by a seesaw pattern with a positive/negative anomaly over the northern/southern TP. Meanwhile, the air column radiation cooling effect is enhanced to a certain degree over the plateau. Further analysis suggests that the early spring SSTA over the North Atlantic may exert a seasonal-lagged impact upon the East Asian summer monsoon by modulating the thermal forcing over the TP. Springer-Verlag Berlin Heidelberg, 2014 Tibetan Plateau nationallicence Atmospheric heat source nationallicence Westerly jet nationallicence North Atlantic Oscillation nationallicence SSTA tripole pattern nationallicence Cui Yangfan The State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, P. O. Box 9804, 100029, Beijing, China aut Duan Anmin The State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, P. O. Box 9804, 100029, Beijing, China aut Liu Yimin The State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, P. O. Box 9804, 100029, Beijing, China aut Wu Guoxiong The State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, P. O. Box 9804, 100029, Beijing, China aut Climate Dynamics Springer Berlin Heidelberg 45/5-6(2015-09-01), 1617-1634 0930-7575 45:5-6<1617 2015 45 382 https://doi.org/10.1007/s00382-014-2417-9 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/s00382-014-2417-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cui Yangfan The State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, P. O. Box 9804, 100029, Beijing, China aut NATIONALLICENCE 700 1- Duan Anmin The State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, P. O. Box 9804, 100029, Beijing, China aut NATIONALLICENCE 700 1- Liu Yimin The State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, P. O. Box 9804, 100029, Beijing, China aut NATIONALLICENCE 700 1- Wu Guoxiong The State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, P. O. Box 9804, 100029, Beijing, China aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 45/5-6(2015-09-01), 1617-1634 0930-7575 45:5-6<1617 2015 45 382