{"NOAAStudyId":"22951","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":"2017-10-30","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-22951.xml","doi":null,"earliestYearBP":-15,"earliestYearCE":1965,"entryId":"noaa-coral-22951","funding":[{"fundingAgency":"Netherlands Organization  for Scientific Research (NWO)","fundingGrant":"SINDOCOM"}],"investigators":"Zinke, J.","mostRecentYearBP":-57,"mostRecentYearCE":2007,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/22951","originalSource":null,"publication":[{"abstract":"Coral cores provide vital climate reconstructions for site-specific temporal variability in river flow and sediment load. Yet, their ability to record spatial differences across multiple catchments is relatively unknown. Here, we investigate spatial linkages between four coral proxies of terrestrial runoff and their relationships between sites. Coral cores were drilled in and around Antongil Bay, the largest bay in Madagascar, and individually analysed for fifteen years of continuous luminescence (G/B), Ba/Ca, d18Osw and d13C data. Each coral core was drilled close to individual river mouths (>= 7 km), and proxy data were compared to modelled river discharge and sediment runoff data for the three corresponding catchments. A reasonable agreement between terrestrial runoff proxies with modelled river discharge and sediment yield was observed. Some inconsistencies between proxy and modelled data are likely linked to proxy behaviour, watershed size and local environmental physiochemical parameters. In general, the further a coral resided from its river source, the weaker the proxy relationship was with modelled data and other corals, due to mixing gradients and currents. Nevertheless, we demonstrate that two coral Ba/Ca and luminescence (G/B) records influenced by the same watershed are reproducible. Furthermore, a strong Ba/Ca relationship was observed between two cores from distant watersheds, with baseline averages in agreement with modelled sediment runoff data. As humic acids behave conservatively in the water column, luminescence (G/B) data gave the highest regional correlations between cores, and showed the most consistent relationship with site specific modelled discharge. No statistical relationship was observed between cores in terms of interannual d18Osw and d13C, meaning corals were recording a localised signal at their respective sites, confounded by vital effects. Comparing proxy baseline averages and mean seasonal cycles provided a good overview of the runoff dynamics of the bay system.","author":{"name":"C.A. Grove, J. Zinke, T. Scheufen, J. Maina, E. Epping, W. Boer, B. Randriamanantsoa, and G.-J.A. Brummer"},"citation":"C.A. Grove, J. Zinke, T. Scheufen, J. Maina, E. Epping, W. Boer, B. Randriamanantsoa, and G.-J.A. Brummer. 2012. Spatial linkages between coral proxies of terrestrial runoff across a large embayment in Madagascar. Biogeosciences, 9(8), 3063-3081. doi: 10.5194/bg-9-3063-2012","edition":null,"identifier":{"id":"10.5194/bg-9-3063-2012","type":"doi","url":"http://dx.doi.org/10.5194/bg-9-3063-2012"},"issue":"8","journal":"Biogeosciences","pages":"3063-3081","pubRank":"1","pubYear":2012,"reportNumber":null,"title":"Spatial linkages between coral proxies of terrestrial runoff across a large embayment in Madagascar","type":"publication","volume":"9"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"55832","geo":{"geoType":"Feature","geometry":{"coordinates":["-15.866133","50.312167"],"type":"POINT"},"properties":{"easternmostLongitude":"50.312167","maxElevationMeters":"-4","minElevationMeters":"-4","northernmostLatitude":"-15.866133","southernmostLatitude":"-15.866133","westernmostLongitude":"50.312167"}},"locationName":"Ocean>Indian Ocean>Madagascar","mappable":"Y","paleoData":[{"NOAADataTableId":"34156","coreLengthMeters":0,"dataFile":[{"NOAAKeywords":["earth 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