{"NOAAStudyId":"17936","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":"2015-01-30","dataPublisher":"NOAA","dataType":"PALEOCEANOGRAPHY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/paleoceanography","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-17936.xml","doi":null,"earliestYearBP":1306700,"earliestYearCE":-1304750,"entryId":"noaa-ocean-17936","funding":[{"fundingAgency":"National Natural Science Foundation China","fundingGrant":"41402153, 41106062"},{"fundingAgency":"Chinese Academy of Sciences","fundingGrant":"Bairen Program"},{"fundingAgency":"China Postdoctoral Science Foundation","fundingGrant":"2013T60164"},{"fundingAgency":"National Basic Research Program of China","fundingGrant":"2010CB951200, 2012CB821900"}],"investigators":"Yi, L.; Deng, C.; Xu, X.; Yu, H.; Qiang, X.K.; Jiang, X.-Y.; Chen, Y.; Su, Q.; Chen, G.; Li, P.; Ge, J.; Li, Y.","mostRecentYearBP":1900,"mostRecentYearCE":50,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/17936","originalSource":null,"publication":[{"abstract":null,"author":{"name":"Yi, L., H. Yu, J.D. Ortiz, X. Xu, X. Qiang, H. Huang, X. Shi, and C. Deng"},"citation":"Yi, L., H. Yu, J.D. Ortiz, X. Xu, X. Qiang, H. Huang, X. Shi, and C. Deng. 2012. A reconstruction of late Pleistocene relative sea level in the  south Bohai Sea, China, based on sediment grain-size analysis. Sedimentary Geology, 281, 88-100. doi: 10.1016/j.sedgeo.2012.08.007","edition":null,"identifier":{"id":"10.1016/j.sedgeo.2012.08.007","type":"doi","url":"http://dx.doi.org/10.1016/j.sedgeo.2012.08.007"},"issue":null,"journal":"Sedimentary Geology","pages":"88-100","pubRank":"2","pubYear":2012,"reportNumber":null,"title":"A reconstruction of late Pleistocene relative sea level in the  south Bohai Sea, China, based on sediment grain-size analysis","type":"publication","volume":"281"},{"abstract":"Asian marginal seas play an important role in moderating material and energy flux linkages between Asia and the Northwest Pacific, and thus have profound climatic and environmental effects. In this study, by combining paleomagnetic study with sediment grain-size analysis on the Lz908 borehole sedimentary sequence from the southern Bohai Sea, new insights into regional geomorphological process since the late early Pleistocene are obtained. The main results are as follows. (1) Paleomagnetic findings suggest that the sequence recorded the Brunhes normal chron and the late Matuyama reverse chron, including the Jaramillo normal subchron. (2) The sedimentary processes in the study area since 1327 ka show a three-stage pattern, with depositional rates of 4.3, 17 and 107 cm/ka during 1327-260 ka (later part of the early and middle Pleistocene), 260-10 ka (late middle and late Pleistocene), and the Holocene, respectively. (3) The sedimentary basin was a part of the Bohai Paleolakes (BHPL) prior to 260 ka, whose water levels were consistently higher than 3 m above the present-day level. After 260 ka, seawater entered the Bohai basin, and relative sea level cyclically fluctuated with global sea-level changes. We therefore infer that the Miaodao Islands, which were the natural barrier of the BHPL blocking seawater entry, had partially subsided before 260 ka, only allowing seawater to enter the basin during a global sea-level maximum. The BHPL terminated around 260 ka, and the \"barrier\" subsided completely around ~130 ka, causing the Bohai basin to become an inner shelf sea.","author":{"name":"Liang Yi, Chenglong Deng, Xingyong Xu, Hongjun Yu, Xiaoke Qiang, Xingyu Jiang, Yanping Chen, Qiao Su, Guangquan Chen, Ping Li, Junyi Ge, Yan Li"},"citation":"Liang Yi, Chenglong Deng, Xingyong Xu, Hongjun Yu, Xiaoke Qiang, Xingyu Jiang, Yanping Chen, Qiao Su, Guangquan Chen, Ping Li, Junyi Ge, Yan Li. 2015. Paleo-megalake termination in the Quaternary: Paleomagnetic and water-level evidence from south Bohai Sea, China. Sedimentary Geology, 319, 1-12. doi: 10.1016/j.sedgeo.2015.01.005","edition":null,"identifier":{"id":"10.1016/j.sedgeo.2015.01.005","type":"doi","url":"http://dx.doi.org/10.1016/j.sedgeo.2015.01.005"},"issue":null,"journal":"Sedimentary Geology","pages":"1-12","pubRank":"1","pubYear":2015,"reportNumber":null,"title":"Paleo-megalake termination in the Quaternary: Paleomagnetic and water-level evidence from south Bohai Sea, China","type":"publication","volume":"319"}],"reconstruction":"Y","scienceKeywords":["Sea Level Reconstruction"],"site":[{"NOAASiteId":"54007","geo":{"geoType":"Feature","geometry":{"coordinates":["37.15","118.9667"],"type":"POINT"},"properties":{"easternmostLongitude":"118.9667","maxElevationMeters":"6","minElevationMeters":"6","northernmostLatitude":"37.15","southernmostLatitude":"37.15","westernmostLongitude":"118.9667"}},"locationName":"Continent>Asia>Eastern Asia>China","mappable":"Y","paleoData":[{"NOAADataTableId":"28214","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/relative_sea_level/bohai2015gs.txt","linkText":"Grain Size Data of Core LZ908","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":"<4um","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"percent","cvWhat":"physical property>diameter>grain size>grain size class>clay"},{"cvAdditionalInfo":"4um-63um","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"percent","cvWhat":"physical property>diameter>grain size>grain size class>silt"},{"cvAdditionalInfo":">63um","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"percent","cvWhat":"physical property>diameter>grain size>grain size class>sand"}]}],"dataTableName":"Bohai2015GS","dataTableNotes":"Grain-size data of Lz908 core","earliestYear":1306700,"earliestYearBP":1306700,"earliestYearCE":-1304750,"mostRecentYear":1900,"mostRecentYearBP":1900,"mostRecentYearCE":50,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"28215","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/relative_sea_level/bohai2015mode.txt","linkText":"Grain Size Decomposition by Weibull Function of Core LZ908","urlDescription":"Data File","variables":[{"cvAdditionalInfo":"R-squared of the regression","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>notes"},{"cvAdditionalInfo":"standard error of the regression","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling 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level"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar kiloyear before present","cvWhat":"age variable>age"}]}],"dataTableName":"Bohai2015RSL","dataTableNotes":null,"earliestYear":1306700,"earliestYearBP":1306700,"earliestYearCE":-1304750,"mostRecentYear":1900,"mostRecentYearBP":1900,"mostRecentYearCE":50,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"28217","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>population abundance"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/relative_sea_level/bohai2015foram.txt","linkText":"Foraminifera Abundance of Core LZ908","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"count per gram","cvWhat":"biological material>organism>foraminifer>foraminiferal index>total foraminifers"}]}],"dataTableName":"Bohai2015foram","dataTableNotes":"Abundance of foraminifera of Lz908 core","earliestYear":243350,"earliestYearBP":243350,"earliestYearCE":-241400,"mostRecentYear":2100,"mostRecentYearBP":2100,"mostRecentYearCE":-150,"species":[],"timeUnit":"cal yr BP"}],"siteName":"LZ908"}],"studyCode":null,"studyName":"Bohai Sea 1327KYr Grain Size Data and Reconstructed Relative Water Level","studyNotes":"Sediment grain size data, foraminifera abundance, and reconstructed Bohai Sea relative water level from coastal sediment core LZ908, covering the past 1.327 million years. This data set is an extension of the Yi et al. 2012 data set, (http://www.ncdc.noaa.gov/paleo/study/13286) which is reconstructed Bohai Sea relative water level for 135KYrs. ","version":"1.0","xmlId":"15639"}