Intensified impact of tropical Atlantic SST on the western North Pacific summer climate under a weakened Atlantic thermohaline circulation

Verfasser / Beitragende:
[Wei Chen, June-Yi Lee, Riyu Lu, Buwen Dong, Kyung-Ja Ha]
Ort, Verlag, Jahr:
2015
Enthalten in:
Climate Dynamics, 45/7-8(2015-10-01), 2033-2046
Format:
Artikel (online)
ID: 605471444
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024 7 0 |a 10.1007/s00382-014-2454-4  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00382-014-2454-4 
245 0 0 |a Intensified impact of tropical Atlantic SST on the western North Pacific summer climate under a weakened Atlantic thermohaline circulation  |h [Elektronische Daten]  |c [Wei Chen, June-Yi Lee, Riyu Lu, Buwen Dong, Kyung-Ja Ha] 
520 3 |a The tropical North Atlantic (TNA) sea surface temperature (SST) has been identified as one of regulators on the boreal summer climate over the western North Pacific (WNP), in addition to SSTs in the tropical Pacific and Indian Oceans. The major physical process proposed is that the TNA warming induces a pair of cyclonic circulation anomaly over the eastern Pacific and negative precipitation anomalies over the eastern to central tropical Pacific, which in turn lead to an anticyclonic circulation anomaly over the western to central North Pacific. This study further demonstrates that the modulation of the TNA warming to the WNP summer climate anomaly tends to be intensified under background of the weakened Atlantic thermohaline circulation (THC) by using a water-hosing experiment. The results suggest that the weakened THC induces a decrease in thermocline depth over the TNA region, resulting in the enhanced sensitivity of SST variability to wind anomalies and thus intensification of the interannual variation of TNA SST. Under the weakened THC, the atmospheric responses to the TNA warming are westward shifted, enhancing the anticyclonic circulation and negative precipitation anomaly over the WNP. This study supports the recent finding that the negative phase of the Atlantic multidecadal oscillation after the late 1960s has been favourable for the strengthening of the connection between TNA SST variability and WNP summer climate and has important implications for seasonal prediction and future projection of the WNP summer climate. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Western North Pacific (WNP) summer climate  |2 nationallicence 
690 7 |a Tropical North Atlantic (TNA) SST  |2 nationallicence 
690 7 |a Weakened Atlantic thermohaline circulation (THC)  |2 nationallicence 
690 7 |a Atlantic multidecadal oscillation (AMO)  |2 nationallicence 
700 1 |a Chen  |D Wei  |u State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physic, Chinese Academy of Sciences, Beijing, China  |4 aut 
700 1 |a Lee  |D June-Yi  |u Research Center for Climate Sciences, Pusan National University, Busan, Korea  |4 aut 
700 1 |a Lu  |D Riyu  |u State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physic, Chinese Academy of Sciences, Beijing, China  |4 aut 
700 1 |a Dong  |D Buwen  |u Department of Meteorology, National Centre for Atmospheric Science-Climate, University of Reading, Reading, UK  |4 aut 
700 1 |a Ha  |D Kyung-Ja  |u Research Center for Climate Sciences, Pusan National University, Busan, Korea  |4 aut 
773 0 |t Climate Dynamics  |d Springer Berlin Heidelberg  |g 45/7-8(2015-10-01), 2033-2046  |x 0930-7575  |q 45:7-8<2033  |1 2015  |2 45  |o 382 
856 4 0 |u https://doi.org/10.1007/s00382-014-2454-4  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00382-014-2454-4  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chen  |D Wei  |u State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physic, Chinese Academy of Sciences, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Lee  |D June-Yi  |u Research Center for Climate Sciences, Pusan National University, Busan, Korea  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Lu  |D Riyu  |u State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physic, Chinese Academy of Sciences, Beijing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Dong  |D Buwen  |u Department of Meteorology, National Centre for Atmospheric Science-Climate, University of Reading, Reading, UK  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ha  |D Kyung-Ja  |u Research Center for Climate Sciences, Pusan National University, Busan, Korea  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Climate Dynamics  |d Springer Berlin Heidelberg  |g 45/7-8(2015-10-01), 2033-2046  |x 0930-7575  |q 45:7-8<2033  |1 2015  |2 45  |o 382