noaa-tree-13914 Boswijk - Hoanga Road - AGAU - ITRDB NEWZ099 Boswijk, G.; Fowler, A.M. Boswijk - Hoanga Road - AGAU - ITRDB NEWZ099 2012-08-16 NCDC-Paleoclimatology ONLINE Files 10.25921/qmte-tf60 https://www.ncdc.noaa.gov/paleo/study/13914 Investigator G. Boswijk Investigator A.M. Fowler earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: HOA001D; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: HOA001B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring age,null,null,year Common Era,null,tree ring,null,null,N,null earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: HOA001A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree-ring width geoscientificInformation AGAU Agathis australis (D. Don) Loudon kauri pine 1093 AD 1660 AD 857 cal yr BP 290 cal yr BP Complete -35.8667 -35.8667 173.9167 173.9167 5 5 Continent Australia/New Zealand New Zealand Hoanga Road>LATITUDE -35.8667>LONGITUDE 173.9167 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Anthony M. Fowler, Gretel Boswijk, Andrew M. Lorrey, Joelle Gergis, Maryann Pirie, Shane P.J. McCloskey, Jonathan G. Palmer, and Jan Wunder. 2012. Multi-centennial tree-ring record of ENSO-related activity in New Zealand. Nature Climate Change 2: 172 - 176. DOI: 10.1038/nclimate1374

It is not known how global warming will affect the El Niño/Southern Oscillation (ENSO). The instrumental record is too short to discern centennial-scale trends and modelling results are inconclusive1, 2, 3, 4, 5. Proxy reconstructions indicate that ENSO activity was relatively high during the late twentieth century6, 7, 8, 9, 10, but whether this was unusual in the millennial context remains uncertain. Here we present insights into these issues derived from rings of the kauri tree (Agathis australis), a rare long-lived conifer endemic to the forests of northern New Zealand. Our results indicate that the twentieth century was the most ‘ENSO-active’ century of the past 500 years, but may not be unique in the context of the past 700 years, and that ENSO activity comparable to or elevated above that experienced during the late twentieth century is plausible under warmer-than-present conditions. We also find evidence that there may have been significant changes in the ENSO teleconnection to the New Zealand region during the fourteenth and fifteenth centuries, and of multi-decadal fluctuations in ENSO-related activity building up to the present day. Although these two features may delay the expression of increased ENSO activity in the New Zealand region, our results indicate that New Zealand climate is likely to be more dominated by ENSO-related inter-annual variability as the world continues to warm. STUDY NOTES: NOAA Template Raw Measurements file added 2019-01-24. NOAA Template Raw Measurements file added 2019-02-01.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/australia/newz099.rwl GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/newz099.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/australia/newz099-noaa.rwl Raw Measurements - NOAA Template File; newz099-noaa.rwl USA/NOAA DIF Version 9.8.4 2019-02-04 2019-02-04