noaa-ocean-19101 San Lázaro Basin, Eastern Pacific 2,300 Year Sediment Geochemical Data Abella-Gutiérrez, J.L.; Herguera, J.-C. San Lázaro Basin, Eastern Pacific 2,300 Year Sediment Geochemical Data 2016-07-14 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/19101 Investigator J.L. Abella-Gutiérrez Investigator J.-C. Herguera earth science paleoclimate paleoceanography depth,null,null,millimeter,null,paleoceanography,null,null,N,null earth science paleoclimate paleoceanography calcium carbonate,sediment,null,percent,null,paleoceanography,null,carbon coulometry,N,null earth science paleoclimate paleoceanography bromine/silicon,sediment,null,dimensionless,null,paleoceanography,null,x-ray fluorescence spectroscopy,N,null earth science paleoclimate paleoceanography depth,null,null,millimeter,null,paleoceanography,null,null,N,depth for XRF data earth science paleoclimate paleoceanography bromine/silicon,sediment,null,dimensionless,null,paleoceanography,normalized,x-ray fluorescence spectroscopy,N,z score earth science paleoclimate paleoceanography depth,null,null,millimeter,null,paleoceanography,null,null,N,depth for XRF earth science paleoclimate paleoceanography bromine/silicon,sediment,null,null,null,paleoceanography,normalized,x-ray fluorescence spectroscopy,N,z score earth science paleoclimate paleoceanography age,null,null,year Common Era,null,paleoceanography,null,null,N,null earth science paleoclimate paleocean geochemistry geoscientificInformation carbon cycle -304 AD 1995 AD 2254 cal yr BP -45 cal yr BP Complete 25.1593 25.2163 -112.7333 -112.6783 -543 -528 Ocean Pacific Ocean Eastern Pacific Ocean San Lázaro Basin>LATITUDE 25.19>LONGITUDE -112.71 Ocean Pacific Ocean Eastern Pacific Ocean CH94-2K>LATITUDE 25.1593>LONGITUDE -112.7032 Ocean Pacific Ocean Eastern Pacific Ocean PCM00-78K>LATITUDE 25.1883>LONGITUDE -112.6783 Ocean Pacific Ocean Eastern Pacific Ocean CA94-8K>LATITUDE 25.2085>LONGITUDE -112.7272 Ocean Pacific Ocean Eastern Pacific Ocean CA94-9K>LATITUDE 25.1975>LONGITUDE -112.7198 Ocean Pacific Ocean Eastern Pacific Ocean BAP96-6-C>LATITUDE 25.2163>LONGITUDE -112.7333 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 Jose Abella‐Gutiérrez, Juan Carlos Herguera 2016 Paleoceanography 31 7 953-970 10.1002/2015PA002872 http://onlinelibrary.wiley.com/doi/10.1002/2015PA002872/abstract

San Lázaro Basin (SLB) oceanographic record is highly sensitive to El Niño and the Southern Oscillation (ENSO) and the Pacific Decadal Oscillation (PDO) variability due to its location below the dynamic boundary between the northern, cooler and fresher waters of the California Current System (CCS) and the southern, warmer and saltier surface waters from subtropics and tropics. Warm sea surface temperatures (SST) and the ensuing stratified surface water column favor carbonate productivity, mostly dominated by the export of coccolithoforids as observed during El Niño events, while cool SSTs and a lesser stratified water column favor a relatively higher export of organic carbon. Here we show how during the last two millenia, the mechanisms that drive the organic carbon and carbonate export depend on the timescale considered. The organic carbon and carbonate records show opposite trends for the past 2 Kyr and in the multicentennial periodicities most probably as the result of the precessional forcing and decreasing insolation of the Northern Hemisphere, which has been shown to further affect the migration of the Inter Tropical Convergence Zone and the Polar Jet stream. In the shorter time-scales, interanual to centennial, the SLB records exhibit an ENSO-like variability; while decadal to multidecadal variability is correlated with instrumental and reconstructed PDO records. Here we further show how interannual variability seems to have increased during the Little Ice Age, most likely related to large ENSO events, in contrast with an apparent reduction in this type of variability between 400 to 1350 CE suggesting a changing sensitivity of the ENSO teleconnection in the southern CCS for the past 2 millennia. STUDY NOTES: Sediment geochemical data (carbonate percentage and Br/Si ratio) from 5 cores collected in the San Lázaro Basin (also called Soledad Basin) off Baja California, Mexico, in the Eastern Pacific Ocean Sediment carbonate content is used as a proxy of water column stratification.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016bap96-6c.txt Text Data File; Core BAP96-6-C Carbonate Content Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016ca94-9k-brsi.txt Text Data File; Core CA94-9K Br/Si Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016ch94-2k-brsi.txt Text Data File; Core CH94-2K Br/Si Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016ca94-9k.txt Text Data File; Core CA94-9K Carbonate Content Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016pcm00-78k-brsi.txt Text Data File; Core PCM00-78K Br/Si Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016composite.txt Text Data File; San Lázaro Basin Composite Carbonate Content Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016composite-brsi.txt Text Data File; San Lázaro Basin Composite Br/Si Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016bap96-6c-brsi.txt Text Data File; Core BAP96-5-C Br/Si Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016pcm00-78k.txt Text Data File; Core PCM00-78K Carbonate Content Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016ca94-8k.txt Text Data File; Core CA94-8K Carbonate Content Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/abella-gutierrez2016/abella-gutierrez2016ch94-2k.txt Text Data File; Core CH94-2K Carbonate Content Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11