{"NOAAStudyId":"8607","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"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.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2008-01-01","dataPublisher":"NOAA","dataType":"CORALS AND SCLEROSPONGES","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/coral-sclerosponge","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-coral-8607.xml","doi":null,"earliestYearBP":104,"earliestYearCE":1846,"entryId":"noaa-coral-8607","funding":[],"investigators":"Abram, N.J.; Gagan, M.K.; Cole, J.E.; Hantoro, W.S.; Mudelsee, M.","mostRecentYearBP":-48,"mostRecentYearCE":1998,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/8607","originalSource":null,"publication":[{"abstract":null,"author":{"name":"Charles, C.D., D.E.Hunter, and R.G.Fairbanks"},"citation":"Charles, C.D., D.E.Hunter, and R.G.Fairbanks. 1997.\r\nInteraction Between the ENSO and the Asian Monsoon in a Coral Record of\r\nTropical Climate. Science, 277, 925-928.","edition":null,"identifier":null,"issue":null,"journal":"Science","pages":"925-928","pubRank":"3","pubYear":1997,"reportNumber":null,"title":"Interaction Between the ENSO and the Asian Monsoon in a Coral Record of Tropical Climate","type":"publication","volume":"277"},{"abstract":"The interplay of the El Nino Southern Oscillation, Asian monsoon and Indian Ocean Dipole (IOD) drives climatic extremes in and around \r\nthe Indian Ocean. Historical and proxy records reveal changes in the \r\nbehaviour of the El Nino Southern Oscillation and the Asian monsoon over recent decades. However, reliable instrumental records of the \r\nIOD cover only the past 50 years, and there is no consensus on long-\r\nterm variability of the IOD or its possible response to greenhouse \r\ngas forcing. Here we use a suite of coral oxygen-isotope records \r\nto reconstruct a basin-wide index of IOD behaviour since AD 1846. \r\nOur record reveals an increase in the frequency and strength of \r\nIOD events during the twentieth century, which is associated with \r\nenhanced seasonal upwelling in the eastern Indian Ocean. Although the El Nino Southern Oscillation has historically \r\ninfluenced the variability of both the IOD and the Asian monsoon, we find that the recent intensification of the IOD coincides with \r\nthe development of direct, positive IOD-monsoon feedbacks. We suggest that projected greenhouse warming may lead to a \r\nredistribution of rainfall across the Indian Ocean and a growing \r\ninterdependence between the IOD and Asian monsoon precipitation \r\nvariability.","author":null,"citation":"Abram, N.J., M.K. Gagan, J.E. Cole, W.S. Hantoro, and M. Mudelsee. 2008. Recent intensification of tropical climate variability in the Indian Ocean. Nature Geoscience, 1 (12), 849-853. doi:10.1038/ngeo357.","edition":null,"identifier":{"id":"10.1038/ngeo357","type":"doi","url":"http://dx.doi.org/10.1038/ngeo357"},"issue":"12","journal":"Nature Geoscience","pages":"849-853","pubRank":"1","pubYear":2008,"reportNumber":null,"title":"Recent intensification of tropical climate variability in the Indian Ocean","type":"publication","volume":"1"},{"abstract":null,"author":{"name":"Charles, C.D.; Cobb, K.M.; Moore, M.D.; Fairbanks, R.G"},"citation":"Charles, C.D.; Cobb, K.M.; Moore, M.D.; Fairbanks, R.G. 2003. Monsoon-tropical ocean interaction in a network of coral records spanning the 20th century. Marine Geology, 201. doi: 10.1016/S0025-3227(03)00217-2","edition":null,"identifier":{"id":"10.1016/S0025-3227(03)00217-2","type":"doi","url":"http://dx.doi.org/10.1016/S0025-3227(03)00217-2"},"issue":null,"journal":"Marine Geology","pages":null,"pubRank":"2","pubYear":2003,"reportNumber":null,"title":"Monsoon-tropical ocean interaction in a network of coral records spanning the 20th century","type":"publication","volume":"201"},{"abstract":null,"author":{"name":"Pfeiffer, M.; Dullo, W.C"},"citation":"Pfeiffer, M.; Dullo, W.C. 2006. Monsoon-induced cooling of the western equatorial Indian Ocean as recorded in coral oxygen isotope records from the Seychelles covering the period of 1840-1994 AD. Quaternary Science Reviews, 25. ","edition":null,"identifier":null,"issue":null,"journal":"Quaternary Science Reviews","pages":null,"pubRank":"4","pubYear":2006,"reportNumber":null,"title":"Monsoon-induced cooling of the western equatorial Indian Ocean as recorded in coral oxygen isotope records from the Seychelles covering the period of 1840-1994 AD","type":"publication","volume":"25"},{"abstract":null,"author":{"name":"Saji, N.H; Goswami, B.N.; Vinayachandran, P.H.; Yamagata, T"},"citation":"Saji, N.H; Goswami, B.N.; Vinayachandran, P.H.; Yamagata, T. 1999. A dipole mode in the tropical Indian Ocean. Nature, 401. ","edition":null,"identifier":null,"issue":null,"journal":"Nature","pages":null,"pubRank":"5","pubYear":1999,"reportNumber":null,"title":"A dipole mode in the tropical Indian Ocean","type":"publication","volume":"401"}],"reconstruction":"Y","scienceKeywords":["Atmospheric and Oceanic Circulation Patterns Reconstruction","PAGES Australasia 2k","PAGES 2k Network"],"site":[{"NOAASiteId":"22893","geo":{"geoType":"Feature","geometry":{"coordinates":["-.13","98.52"],"type":"POINT"},"properties":{"easternmostLongitude":"98.52","maxElevationMeters":"-6","minElevationMeters":"-6","northernmostLatitude":"-0.13","southernmostLatitude":"-0.13","westernmostLongitude":"98.52"}},"locationName":"Ocean>Indian Ocean>Indonesia","mappable":"Y","paleoData":[{"NOAADataTableId":"12443","coreLengthMeters":3,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/mentawai2008.xls","linkText":"mentawai2008.xls","urlDescription":"Excel File","variables":[]}],"dataTableName":"PG01-A-2","dataTableNotes":null,"earliestYear":1858,"earliestYearBP":92,"earliestYearCE":1858,"mostRecentYear":1998,"mostRecentYearBP":-48,"mostRecentYearCE":1998,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"1002502","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/abram2008-d18o_noaa.txt","linkText":"abram2008-d18o_noaa.txt","urlDescription":"Coral","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|CORALS AND SCLEROSPONGES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"anomalized to mean annual cycle","cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"anomalized","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"anomalized to mean annual cycle","cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"08suma01a","dataTableNotes":"Adjustments of +0.27� for the TN99-A-4 coral and -0.09� for the TM01-A-10 coral were applied to match the mean d18O values of these shorter records to the PG01-A-2 d18O record.","earliestYear":1858,"earliestYearBP":92,"earliestYearCE":1858,"mostRecentYear":1997,"mostRecentYearBP":-47,"mostRecentYearCE":1997,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"1002503","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/indian_ocean/abram2008-dmi_noaa.txt","linkText":"abram2008-dmi_noaa.txt","urlDescription":"Coral","variables":[{"cvAdditionalInfo":"reference period: 1960-1990 A.D.","cvDataType":"CLIMATE RECONSTRUCTIONS|CORALS AND SCLEROSPONGES","cvDetail":"normalized","cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>isotope ratio>delta 18O","cvMethod":null,"cvSeasonality":"monthly","cvShortName":null,"cvUnit":"standard deviation unit","cvWhat":"earth system variable>mode-of-variability variable>Dipole Mode Index"},{"cvAdditionalInfo":"\"reference period: 1960-1990 A.D., filter: Gaussian to retain periods < 7 years\"","cvDataType":"CLIMATE RECONSTRUCTIONS|CORALS AND SCLEROSPONGES","cvDetail":"filtered","cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>isotope ratio>delta 18O","cvMethod":null,"cvSeasonality":"monthly","cvShortName":null,"cvUnit":"standard deviation unit","cvWhat":"earth system variable>mode-of-variability variable>Dipole Mode Index"},{"cvAdditionalInfo":"\"reference period: 1960-1990 A.D., filter: Gaussian to retain periods < 7 years\"","cvDataType":"CLIMATE RECONSTRUCTIONS|CORALS AND SCLEROSPONGES","cvDetail":"normalized","cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>isotope ratio>delta 18O","cvMethod":null,"cvSeasonality":"monthly","cvShortName":null,"cvUnit":"standard deviation unit","cvWhat":"earth system variable>mode-of-variability variable>Dipole Mode Index"}]}],"dataTableName":"08suma01b","dataTableNotes":"The coral DMI was derived from coral d18O anomaly records from the Mentawai Islands (this study; Supplementary Table 1)","earliestYear":1846,"earliestYearBP":104,"earliestYearCE":1846,"mostRecentYear":1994,"mostRecentYearBP":-44,"mostRecentYearCE":1994,"species":[],"timeUnit":"AD"}],"siteName":"Mentawai"}],"studyCode":null,"studyName":"Mentawai - d18O Data and DMI Reconstruction","studyNotes":null,"version":"1.0","xmlId":"2582"}