noaa-cave-5538 eng; USA utf8 dataset Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2018-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Partin et al. 2007 Northern Borneo Stalagmite Oxygen Isotope Data 2011-06-01 publication noaa-cave-5538 NCEI DSI 1200_01 Partin, J.W. originator Partin, J.W. author Cobb, K.M. originator Cobb, K.M. author Adkins, J.F. originator Adkins, J.F. author Clark, B. originator Clark, B. author Fernandez, D.P. originator Fernandez, D.P. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Cave. The data include parameters of speleothems with a geographic location of Malaysia. The time period coverage is from 27228 to 0 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past temperature, precipitation, and other aspects of climate derived from mineral deposits found in caves. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. completed Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncdc.noaa.gov/c/images/pc-default-cave.png Paleoclimatology - Speleothem PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Land Records > Cave Deposits Earth Science > Climate Indicators > Paleoclimate Indicators > Speleothems Earth Science > Paleoclimate > Land Records > Cave Deposits theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems > oxygen isotopes theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Last Glacial Maximum theme Ocean > Indian Ocean > Malaysia> Gunung Buda National Park > LATITUDE 4.03 > LONGITUDE 114.8 place otherRestrictions Cite as: Partin, J.W.; Cobb, K.M.; Adkins, J.F.; Clark, B.; Fernandez, D.P. (2011-06-01): NOAA/WDS Paleoclimatology - Partin et al. 2007 Northern Borneo Stalagmite Oxygen Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/5538. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. otherRestrictions None otherRestrictions 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. eng; USA geoscientificInformation Date Range: -25278 AD to 1950 AD; Date Range: 27228 cal yr BP to 0 cal yr BP; 114.8 114.8 4.03 4.03 Study Coordinates 4.03 114.8 -25278 1950 STUDY NOTES: Three stalagmite d18O records from Gunung Buda National Park, Northern Borneo, Malaysia (4º02'N, 114º48'E, elev. 150m), for the last 27ka. Samples SSC01 and SCH02 originate from Snail Shell Cave and formed ~250m from the cave entrance and ~20m from each other. Sample BA04 formed >500m from the cave entrance in Bukit Assam Cave, which lies ~6km NNE from Snail Shell Cave. The age model for each record is comprised of 24-26 U/Th Dates corrected using stalagmite specific 230Th/232Th (Suppl. Info in Partin et al., 2007; Adkins et al., 2007); breaks in the record are dated hiatuses. The average temporal resolution for each d18O record is 72, 56, and 60 yrs/sample for SCH02, SSC01, and BA04, respectively. Rules for establishing the age models from U/Th dates, as well as known hiatuses, are provided below. A "master d18O record" is constructed by splicing together portions of the three individual records. The master record is best used with error bars calculated from overlapping portions of all three stalagmites. For all records, d18O data are reported with respect to PDB, and ages are reported as years before present. Two rules were used for establishing the final age model: 1) For ages older than 11,000 years, individual age errors for a U-series point must be less than 2% (2s). 2) For ages younger than 11,000 years we only keep points with uncertainties of less than 400 years. Two additional rules used to pick dates: 1) Use only one point per isochron – that with the lowest error bar. 2) When there is overlap between two ages within error, take the age with the smallest error bar. Rules for establishing length of a hiatus: After visually examining the stalagmites for indications of a hiatus, all potential bands were checked for missing years by extending the young part of the adjacent age constraints downward and the older age constraints upward. If there is a difference in predicted age at the visual band's depth that is larger than 400 years and the age difference is larger than the propagated uncertainty, we declare that band a hiatus. A hiatus' duration is taken to be the difference in age between the upper and lower age model constraints. June 2007 Corregendum, Nature 4 June 2009: A recalibration of the Caltech 236U and 229Th spike has determined that the original spike value used for the stalagmite chronologies yielded U-Th ages that were too old by a margin of ~2-3%. U-Th ages and subsequent age models have been recalculated using the new spike value for all stalagmites. The new age models alter the absolute timing of certain events, but do not alter any major conclusions of the original manuscript. The highest d18O values (inferred driest conditions) now occur at 16.0 +/- 0.3 kyr ago. A late deglacial d18O plateau in the Borneo stalagmite records is now centered at 13.0 +/- 0.2 kyr ago. The lowest d18O values (inferred wettest conditions) now occur at 5.0 +/- 0.1 kyr ago. Examples of original and adjusted dates, respectively, at 5 kyr intervals are as follows: 5280 versus 5141 (SSC01); 10581 versus 10293 (SSC01); 15673 versus 15231 (BA04); 20937 versus 20322 (BA04); and 26387 versus 25602 (SCH02). Revised chronologies are available at: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/speleothem/ pacific/gunung-buda2007.xls LAST UPDATE: 6/2011 (add spliced record) 6/2008 (substitute revised age model) ABSTRACT SUPPLIED BY ORIGINATOR: Models and palaeoclimate data suggest that the tropical Pacific climate system plays a key part in the mechanisms underlying orbital-scale and abrupt climate change. Atmospheric convection over the western tropical Pacific is a major source of heat and moisture to extratropical regions, and may therefore influence the global climate response to a variety of forcing factors. The response of tropical Pacific convection to changes in global climate boundary conditions, abrupt climate changes and radiative forcing remains uncertain, however. Here we present three absolutely-dated oxygen isotope records from stalagmites in northern Borneo that reflect changes in west Pacific warm pool hydrology over the past 27,000 years. Our results suggest that convection over the western tropical Pacific weakened 18,000- 20,000 years ago, as tropical Pacific and Antarctic temperatures began to rise during the early stages of deglaciation. Convective activity, as inferred from oxygen isotopes, reached a minimum during Heinrich event 1, when the Atlantic meridional overturning circulation was weak, pointing to feedbacks between the strength of the overturning circulation and tropical Pacific hydrology. There is no evidence of the Younger Dryas event in the stalagmite records, however, suggesting that different mechanisms operated during these two abrupt deglacial climate events. During the Holocene epoch, convective activity appears to track changes in spring and autumn insolation, highlighting the sensitivity of tropical Pacific convection to external radiative forcing. Together, these findings demonstrate that the tropical Pacific hydrological cycle is sensitive to high-latitude climate processes in both hemispheres, as well as to external radiative forcing, and that it may have a central role in abrupt climate change events. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-cave-5538 HTTPS Landing Page NCEI landing page for this dataset Dataset landing page with general information and links to access the data. information https://www.ncdc.noaa.gov/paleo/study/5538 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem HTTPS Information NCEI Cave Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/pacific/gunung-buda2007.txt HTTPS Download /speleothem/pacific/gunung-buda2007.txt Speleothem download https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/pacific/gunung-buda2007.xls HTTPS Download /speleothem/pacific/gunung-buda2007.xls Speleothem download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25