{"NOAAStudyId":"15445","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":"2013-11-18","dataPublisher":"NOAA","dataType":"CLIMATE RECONSTRUCTIONS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/climate-reconstruction","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-recon-15445.xml","doi":null,"earliestYearBP":328,"earliestYearCE":1622,"entryId":"noaa-recon-15445","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"AGS-PRF1137729, DEB-0816700, ATM0117442, OCE0402474"}],"investigators":"Davi, N.K.; Pederson, N.; Leland, C.; Nachin, B.; Suran, B.; Jacoby, G.C.","mostRecentYearBP":-57,"mostRecentYearCE":2007,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/15445","originalSource":null,"publication":[{"abstract":"Temperatures in semiarid Mongolia have rapidly risen over the past few decades, and increases in drought, urban development, mining, and agriculture have intensified demands on limited water resources. Understanding long-term streamflow variation is critical for Mongolia, particularly if alterations in streamflow are being considered and because of the potential negative impacts of drought on the animal agriculture sector. Here, we present a temporally and spatially improved streamflow reconstruction for the Kherlen River. We have added 11 new records in comparison with two in the original 2001 reconstruction. This new reconstruction extends from 1630 to 2007 and places the most recent droughts in a multicentennial perspective. We find that variations in streamflow have been much greater in the past than in the original study. There was higher variability in the mid to late 1700s, ranging from severe and extended drought conditions from 1723 to 1739 and again in 1768-1778 to two decadal length episodes of very wet conditions in the mid 1700s and late 1700s. Reduced amplitude is seen in the mid-1800s, and several pluvial events are reconstructed for the 1900s. Although recent droughts are severe and disturbing economic and ecological systems in Mongolia and it appears that eastern Mongolia is drying, the drying trend since the late 1900s might in fact be accentuated by a change from a particularly wet era in Mongolia. The recent drought might be a return to more characteristic hydroclimatic conditions of the past four centuries in Mongolia.","author":{"name":"Nicole K. Davi, Neil Pederson, Caroline Leland, Baatarbileg Nachin, Byambagerel Suran, Gordon C. Jacoby"},"citation":"Nicole K. Davi, Neil Pederson, Caroline Leland, Baatarbileg Nachin, Byambagerel Suran, Gordon C. Jacoby. 2013. Is eastern Mongolia drying? A long-term perspective of a multidecadal trend. Water Resources Research, 49(1), 151-158. doi: 10.1029/2012WR011834","edition":null,"identifier":{"id":"10.1029/2012WR011834","type":"doi","url":"http://dx.doi.org/10.1029/2012WR011834"},"issue":"1","journal":"Water Resources Research","pages":"151-158","pubRank":"1","pubYear":2013,"reportNumber":null,"title":"Is eastern Mongolia drying? A long-term perspective of a multidecadal trend","type":"publication","volume":"49"}],"reconstruction":"Y","scienceKeywords":["hydrology","Streamflow Reconstruction"],"site":[{"NOAASiteId":"55728","geo":{"geoType":"Feature","geometry":{"coordinates":["47.3121","110.6644"],"type":"POINT"},"properties":{"easternmostLongitude":"110.6644","maxElevationMeters":"1032","minElevationMeters":"1032","northernmostLatitude":"47.3121","southernmostLatitude":"47.3121","westernmostLongitude":"110.6644"}},"locationName":"Continent>Asia>Eastern Asia>Mongolia","mappable":"Y","paleoData":[{"NOAADataTableId":"25370","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>reconstructions>streamflow"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/mongolia/kherlen2013flow.txt","linkText":"kherlen2013flow.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|TREE RING","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":"CLIMATE RECONSTRUCTIONS|TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":"annual","cvShortName":null,"cvUnit":"cubic meter per second","cvWhat":"earth system variable>hydroclimatic variable>hydroclimate rate>streamflow"}]}],"dataTableName":"Kherlen2013flow","dataTableNotes":null,"earliestYear":1622,"earliestYearBP":328,"earliestYearCE":1622,"mostRecentYear":2007,"mostRecentYearBP":-57,"mostRecentYearCE":2007,"species":[],"timeUnit":"AD"}],"siteName":"Undurkhaan"}],"studyCode":null,"studyName":"Kherlen River, Mongolia 385 Year Streamflow Reconstruction","studyNotes":"Tree ring based reconstruction of annual river flow on the Kherlen River, Mongolia for the past 385 years. The reconstruction updates and improves on the previous reconstruction of the Kherlen River by Pederson et al. [2001] \nthrough increased spatial and temporal tree-ring replication and the use of nested model methods that add 40 years to the original Pederson et al. [2001] reconstruction. The updated tree-ring network is composed of 13 records that cover substantially more of the Kherlen River headwater region than the original reconstruction. River flow is reconstructed for the Undurkhaan gauge on the Kherlen River (47N, 111E, 1032 m, 1959-2008AD). ","version":"1.0","xmlId":"13238"}