{"NOAAStudyId":"13885","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":"2012-12-19","dataPublisher":"NOAA","dataType":"TREE RING","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/tree-ring","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-tree-13885.xml","doi":"https://doi.org/10.25921/8dqa-md97","earliestYearBP":297,"earliestYearCE":1653,"entryId":"noaa-tree-13885","funding":[],"investigators":"Pederson, N.; Saladyga, T.; Suran, B.; McGraw, K.; Nachin, B.","mostRecentYearBP":-58,"mostRecentYearCE":2008,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/13885","originalSource":null,"publication":[{"abstract":"In its continuing move toward resource independence, Mongolia has recently entered a new agricultural era. Large crop fields and center-pivot irrigation have been established in the last 10 years across Mongolia's \"Breadbasket\": the Bulgan, Selenge and Tov aimags of northcentral Mongolia. Since meteorological records are typically short and spatially diffuse, little is known about the frequency and scale of past droughts in this region. We use six chronologies from the eastern portion of the breadbasket region to reconstruct streamflow of the Yeruu River. These chronologies accounted for 60.8% of May-September streamflow from 1959 to 1987 and 74.1% from 1988 to 2001. All split, calibration-verification statistics were positive, indicating significant model reconstruction. Reconstructed Yeruu River streamflow indicates the 20th century to be wetter than the two prior centuries. When comparing the new reconstruction to an earlier reconstruction of Selenge River streamflow, representing the western portion of the breadbasket region, both records document more pluvial events of greater intensity during 20th century versus prior centuries and indicate that the recent decade of drought that lead to greater aridity across the landscape is not unusual in the context of the last 300 years. Most interestingly, variability analyses indicate that the larger river basin in the western breadbasket (the Selenge basin) experiences greater swings in hydroclimate at multi-decadal to centennial time scales while the smaller basin in the eastern portion of the breadbasket (the Yeruu basin) is more stable. From this comparison, there would be less risk in agricultural productivity in the eastern breadbasket region, although the western breadbasket region can potentially be enormously productive for decades at a time before becoming quite dry for an equally long period of time. These results indicate that farmers and water managers need to prepare for both pluvial conditions like those in the late-1700s, and drier conditions like those during the early and mid-1800s. Recent studies have indicated that cultures with plentiful resources are more vulnerable when these resources become diminished. Thus, the instrumental records of the 20th century should not be used as a model of moisture availability. Most importantly, the geographic mismatch between precipitation, infrastructure, and water demand could turn out to be particularly acute for countries like Mongolia, especially as these patterns can switch in space through time.","author":null,"citation":"Pederson, N., C. Leland, B. Nachin, A.E. Hessl, A.R. Bell, D. Martin-Benito, T. Saladyga, B. Suran, P.M. Brown, N.K. Davi. 2012. \r\nThree centuries of shifting hydroclimatic regimes across the Mongolian Breadbasket. \r\nAgricultural and Forest Meteorology, DOI: 10.1016/j.agrformet.2012.07.003. ","edition":null,"identifier":{"id":"10.1016/j.agrformet.2012.07.003","type":"doi","url":"http://dx.doi.org/10.1016/j.agrformet.2012.07.003"},"issue":null,"journal":"Agricultural and Forest Meteorology","pages":null,"pubRank":"1","pubYear":2012,"reportNumber":null,"title":"Three centuries of shifting hydroclimatic regimes across the Mongolian Breadbasket","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["hydrology"],"site":[{"NOAASiteId":"54506","geo":{"geoType":"Feature","geometry":{"coordinates":["49.9385","106.2011"],"type":"POINT"},"properties":{"easternmostLongitude":"106.2011","maxElevationMeters":"1180","minElevationMeters":"1180","northernmostLatitude":"49.9385","southernmostLatitude":"49.9385","westernmostLongitude":"106.2011"}},"locationName":"Continent>Asia>Eastern Asia>Mongolia","mappable":"Y","paleoData":[{"NOAADataTableId":"23576","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/mong035.txt","linkText":"mong035.txt","urlDescription":"Correlation Stats","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/asia/mong035.rwl","linkText":"mong035.rwl","urlDescription":"Raw Measurements","variables":[{"cvAdditionalInfo":null,"cvDataType":"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":"units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999","cvDataType":"TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"physical property>length>total ring width"}]},{"NOAAKeywords":["earth science>paleoclimate>tree-ring>width>ring width"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/asia/mong035-noaa.rwl","linkText":"mong035-noaa.rwl","urlDescription":"Raw Measurements - NOAA Template File","variables":[{"cvAdditionalInfo":"Tree ID: DKN14b; 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The trees cored here are primarily from a classic dendroclimatically site: trees were mostly open grown on sterile, south to southwest-facing slopes. There is evidence of fire in this landscape. NOAA Template Raw Measurements file added 2019-04-08.","version":"1.0","xmlId":"11886"}