{"NOAAStudyId":"19100","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":"2015-08-11","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-19100.xml","doi":null,"earliestYearBP":21000,"earliestYearCE":-19050,"entryId":"noaa-forcing-19100","funding":[],"investigators":"Lambert, F.; Tagliabue, A.; Shaffer, G.; Lamy, F.; Winckler, G.; Farias, L.; Gallardo, L.; De Pol-Holz, R.","mostRecentYearBP":0,"mostRecentYearCE":1950,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/19100","originalSource":null,"publication":[{"abstract":"Mineral dust aerosols play a major role in present and past climates. To date, we rely on climate models for estimates of dust fluxes to calculate the impact of airborne micronutrients on biogeochemical cycles. Here we provide a new global dust flux data set for Holocene and Last Glacial Maximum (LGM) conditions based on observational data. A comparison with dust flux simulations highlights regional differences between observations and models. By forcing a biogeochemical model with our new data set and using this model's results to guide a millennial-scale Earth System Model simulation, we calculate the impact of enhanced glacial oceanic iron deposition on the LGM-Holocene carbon cycle. On centennial timescales, the higher LGM dust deposition results in a weak reduction of <10 ppm in atmospheric CO2 due to enhanced efficiency of the biological pump. This is followed by a further ~10 ppm reduction over millennial timescales due to greater carbon burial and carbonate compensation.","author":{"name":"Fabrice Lambert, Alessandro Tagliabue, Gary Shaffer, Frank Lamy, Gisela Winckler, Laura Farias, Laura Gallardo, and Ricardo De Pol-Holz"},"citation":"Fabrice Lambert, Alessandro Tagliabue, Gary Shaffer, Frank Lamy, Gisela Winckler, Laura Farias, Laura Gallardo, and Ricardo De Pol-Holz. 2015. Dust fluxes and iron fertilization in Holocene and Last Glacial Maximum climates. Geophysical Research Letters, 42(14), 6014-6023. doi: 10.1002/2015GL064250","edition":null,"identifier":{"id":"10.1002/2015GL064250","type":"doi","url":"http://dx.doi.org/10.1002/2015GL064250"},"issue":"14","journal":"Geophysical Research Letters","pages":"6014-6023","pubRank":"1","pubYear":2015,"reportNumber":null,"title":"Dust fluxes and iron fertilization in Holocene and Last Glacial Maximum climates","type":"publication","volume":"42"}],"reconstruction":"Y","scienceKeywords":null,"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":"29544","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>climate forcing>other"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/climate_forcing/lambert2015/readme-lambert2015dust.txt","linkText":"Lambert et al. 2015 Readme File","urlDescription":"Data Description","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"month of year","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"degree north","cvWhat":"sampling metadata>latitude"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"degree east","cvWhat":"sampling metadata>longitude"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"kilogram per square meter per second","cvWhat":"geological material>bulk geological material>dust"}]},{"NOAAKeywords":["earth science>paleoclimate>climate forcing>other"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/climate_forcing/lambert2015/dustflux.nc","linkText":"Holocene and Last Glacial Maximum Dust Flux Data","urlDescription":"netCDF Data File","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>climate forcing>other"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/climate_forcing/lambert2015/dustflux.nc.txt","linkText":"Holocene and Last Glacial Maximum Dust Flux Data","urlDescription":"Text Data File","variables":[]}],"dataTableName":"Lambert2015dust","dataTableNotes":null,"earliestYear":21000,"earliestYearBP":21000,"earliestYearCE":-19050,"mostRecentYear":0,"mostRecentYearBP":0,"mostRecentYearCE":1950,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Global"}],"studyCode":null,"studyName":"Global Holocene and Last Glacial Maximum Dust Flux Data","studyNotes":"Global interpolated dust fluxes for the Holocene and Last Glacial Maximum (LGM)","version":"1.0","xmlId":"16772"}