{"NOAAStudyId":"13136","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":"2012-07-11","dataPublisher":"NOAA","dataType":"CLIMATE FORCING","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/climate-forcing","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-forcing-13136.xml","doi":null,"earliestYearBP":56000000,"earliestYearCE":-55998050,"entryId":"noaa-forcing-13136","funding":[],"investigators":"Zeebe, R.E.","mostRecentYearBP":55800000,"mostRecentYearCE":-55798050,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/13136","originalSource":null,"publication":[{"abstract":"The LOSCAR model is designed to efficiently compute the \r\npartitioning of carbon between ocean, atmosphere, and sediments \r\non time scales ranging from centuries to millions of years. \r\nWhile a variety of computationally inexpensive carbon cycle \r\nmodels are already available, many are missing a critical \r\nsediment component, which is indispensable for long-term \r\nintegrations. One of LOSCAR's strengths is the coupling \r\nof ocean-atmosphere routines to a computationally efficient \r\nsediment module. This allows, for instance, adequate computation \r\nof CaCO3 dissolution, calcite compensation, and long-term carbon \r\ncycle fluxes, including weathering of carbonate and silicate rocks. \r\nThe ocean component includes various biogeochemical tracers \r\nsuch as total carbon, alkalinity, phosphate, oxygen, and stable \r\ncarbon isotopes. LOSCAR's configuration of ocean geometry \r\nis flexible and allows for easy switching between modern \r\nand paleo-versions. We have previously published applications \r\nof the model tackling future projections of ocean chemistry \r\nand weathering, pCO2 sensitivity to carbon cycle perturbations \r\nthroughout the Cenozoic, and carbon/calcium cycling during \r\nthe Paleocene-Eocene Thermal Maximum. The focus of the present \r\ncontribution is the detailed description of the model including \r\nnumerical architecture, processes and parameterizations, tuning, \r\nand examples of input and output. Typical CPU integration times \r\nof LOSCAR are of order seconds for several thousand model years \r\non current standard desktop machines. The LOSCAR source code \r\nin C can be obtained from the author by sending a request \r\nto loscar.model@gmail.com.\r\n\r\n","author":null,"citation":"Zeebe, R.E. 2012. \r\nLOSCAR: Long-term Ocean-atmosphere-Sediment CArbon cycle \r\nReservoir Model v2.0.4. \r\nGeosci. Model Dev., 5, 149-166 \r\nwww.geosci-model-dev.net/5/149/2012/\r\ndoi:10.5194/gmd-5-149-2012","edition":null,"identifier":{"id":"10.5194/gmd-5-149-2012","type":"doi","url":"http://dx.doi.org/10.5194/gmd-5-149-2012"},"issue":null,"journal":"Geoscientific Model Development","pages":null,"pubRank":"1","pubYear":2012,"reportNumber":null,"title":"LOSCAR: Long-term Ocean-atmosphere-Sediment CArbon cycle  Reservoir Model v2.0.4","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["carbon cycle"],"site":[{"NOAASiteId":"22723","geo":{"geoType":"Feature","geometry":{"coordinates":["-90","90","-180","180"],"type":"POLYGON"},"properties":{"easternmostLongitude":"180","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"90","southernmostLatitude":"-90","westernmostLongitude":"-180"}},"locationName":"Geographic Region>Global","mappable":"N","paleoData":[{"NOAADataTableId":"22592","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>climate forcing>carbon dioxide"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/climate_forcing/trace_gases/loscar-petm-co2.txt","linkText":"loscar-petm-co2.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":"years from start of model simulation","cvDataType":"CLIMATE FORCING|PALEOCLIMATIC MODELING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE FORCING|PALEOCLIMATIC MODELING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"parts per million","cvWhat":"chemical composition>compound>inorganic compound>carbon dioxide"}]},{"NOAAKeywords":["earth science>paleoclimate>climate forcing>carbon dioxide"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/climate_forcing/trace_gases/loscar-petm-co2.xls","linkText":"loscar-petm-co2.xls","urlDescription":"Data","variables":[]}],"dataTableName":"LOSCAR2012","dataTableNotes":null,"earliestYear":56000000,"earliestYearBP":56000000,"earliestYearCE":-55998050,"mostRecentYear":55800000,"mostRecentYearBP":55800000,"mostRecentYearCE":-55798050,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Global"}],"studyCode":null,"studyName":"LOSCAR Model Paleocene-Eocene Thermal Maximum pCO2 Output","studyNotes":"pCO2 output for the Palaeocene-Eocene Thermal Maximum from LOSCAR \nmodel (Long-term Ocean-atmosphere-Sediment CArbon cycle Reservoir Model)\nModel run is for 200,000 y after Paleocene-Eocene boundary (~56 Ma)","version":"1.0","xmlId":"11178"}