caa a22 4500 605474087 CHVBK 20210128100346.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00382-014-2402-3 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2402-3 Reconstruction of the springtime East Asian Subtropical Jet and Western Pacific pattern from a millennial-length Taiwanese tree-ring chronology [Elektronische Daten] [W. Wright, B. Guan, Y.-H. Tseng, E. Cook, K.-Y. Wei, S.-T. Chang] The East Asian subtropical jet (EAJ) and the closely related Western Pacific pattern (WP) are among the most important features in global atmospheric dynamics, but little is known about their long-term variability. This study presents reconstructions of the Spring EAJ index (EAJI) and the Spring WP index (WPI) based on significant relationships identified between mean values for these features and a millennial length tree-ring width chronology of Chamaecyparis obtusa var. formosana, a high-mountain cloud forest species from northeastern Taiwan. Tree-ring based reconstructions of high pass filtered versions of the EAJI and WPI (EAJI 5YR and WPI 5YR) presented herein explain 42 and 31% of the WPI 5YR and EAJI 5YR, respectively, and display acceptable reliability back to A.D. 1237. A significant trend present in the long-term variance of the reconstructed EAJI and WPI after A.D. 1860 suggests long-term increasing variability in the spring mean latitudinal placement and/or the strength/breadth of the EAJ core region near Taiwan and Japan and in the trajectory of the EAJ over the North Pacific. Related features affected by changes in the EAJ include the North Pacific storm track and Asian Dust transport. Springer-Verlag Berlin Heidelberg, 2014 Tree-ring nationallicence Cloud forest nationallicence East Asian Subtropical jet nationallicence Western Pacific pattern nationallicence North Pacific storm track nationallicence Temperature nationallicence Wright W. Laboratory of Tree-Ring Research, The University of Arizona, Tucson, AZ, USA aut Guan B. School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan aut Tseng Y.-H Earth System Laboratory, National Center for Atmospheric Research, Boulder, CO, USA aut Cook E. Biology and Paleoenvironment, Lamont-Doherty Earth Observatory, Palisades, NY, USA aut Wei K.-Y Department of Geoscience, National Taiwan University, Taipei, Taiwan aut Chang S.-T School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan aut Climate Dynamics Springer Berlin Heidelberg 44/5-6(2015-03-01), 1645-1659 0930-7575 44:5-6<1645 2015 44 382 https://doi.org/10.1007/s00382-014-2402-3 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/s00382-014-2402-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wright W. Laboratory of Tree-Ring Research, The University of Arizona, Tucson, AZ, USA aut NATIONALLICENCE 700 1- Guan B. School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan aut NATIONALLICENCE 700 1- Tseng Y.-H Earth System Laboratory, National Center for Atmospheric Research, Boulder, CO, USA aut NATIONALLICENCE 700 1- Cook E. Biology and Paleoenvironment, Lamont-Doherty Earth Observatory, Palisades, NY, USA aut NATIONALLICENCE 700 1- Wei K.-Y Department of Geoscience, National Taiwan University, Taipei, Taiwan aut NATIONALLICENCE 700 1- Chang S.-T School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 44/5-6(2015-03-01), 1645-1659 0930-7575 44:5-6<1645 2015 44 382