noaa-recon-22453 Central Vietnam 660 Year SPEI Index Reconstruction Buckley, B.M.; Stahle, D.K.; Luu, H.T.; Wang, S.-Y.; Nguyen, T.Q.T.; Thomas, P.; Le, C.N.; Ton, T.M.; Bui, T.H.; Nguyen, V.T. Central Vietnam 660 Year SPEI Index Reconstruction 2017-08-07 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22453 Investigator B.M. Buckley Investigator D.K. Stahle Investigator H.T. Luu Investigator S.-Y. Wang Investigator T.Q.T. Nguyen Investigator P. Thomas Investigator C.N. Le Investigator T.M. Ton Investigator T.H. Bui Investigator V.T. Nguyen earth science paleoclimate climate reconstructions|tree ring age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null earth science paleoclimate climate reconstructions|tree ring standardized precipitation evapotranspiration index,null,null,dimensionless,Apr,climate reconstructions|tree ring,null,null,N,null earth science paleoclimate reconstructions precipitation geoscientificInformation Other Hydroclimate Reconstruction 1347 AD 2013 AD 603 cal yr BP -63 cal yr BP Complete 15.15 15.15 107.69 107.69 1350 1350 Continent Asia Southeastern Asia Vietnam Tay Giang Protection Forest>LATITUDE 15.15>LONGITUDE 107.69 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 Brendan M. Buckley, Daniel K. Stahle, Hong Truong Luu, S.-Y. Simon Wang, Tran Quoc Trung Nguyen, Philip Thomas, Canh Nam Le, That Minh Ton, The Hoang Bui, and Van Thiet Nguyen 2017 Climate Dynamics 48 11-12 3707-3723 10.1007/s00382-016-3297-y https://link.springer.com/article/10.1007/s00382-016-3297-y

We present the first crossdated tree ring record from central Vietnam, derived from the growth rings of the rare cypress Fokienia hodginsii from the mountains of Quang Nam Province near the Laos border. The Quang Nam Fokienia hodginsii time series (QNFH), based on the crossdated sequences of 71 increment core samples from 37 mature trees, is the third published dendrochronological record from this species. The record extends 667 years from AD 1347 to 2013 and exhibits a mean series intercorrelation of 0.526, similarly significant with the first two published Fokienia hodginsii records: 0.474 for Mu Cang Chai (MCFH) and 0.578 for Bidoup-Nui Ba National Park (BDFH) in the north and south of Vietnam, respectively. The Expressed Population Signal (EPS) for the QNFH record exceeds the generally accepted threshold of 0.85 back to AD 1567, but remains above 0.8 back to 1550. Similar to the MCFH and BDFH records, QNFH expresses statistically significant linkages to regional hydroclimate metrics and the El Niño-Southern Oscillation. Here we present a reconstruction of the Standardized Precipitation Evapotranspiration Index for the month of April, averaged over a large region of Southeast Asia. As with prior studies we demonstrate that cool phase (La Niña) and warm phase (El Niño) events are linked to regional wet and dry conditions, respectively, with linkages to modulation of the surface water temperature over the adjacent sea to the east of Vietnam as well as the Indian Ocean. A late eighteenth century megadrought that is expressed widely across South and Southeast Asia, and notably from the MCFH and BDFH records described above, is not as pronounced in Central Vietnam and we explore the reasons why. STUDY NOTES: Central Vietnam Standardized Precipitation Evapotranspiration Index (SPEI) for the month of April, 1347-2013 CE, based on Fokienia hodginsii tree rings from Quang Nam Province.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/asia/vietnam/central-vietnam2017spei.txt Formatted Text Data File; Central Vietnam SPEI Index Reconstruction USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11