{"NOAAStudyId":"20062","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":"2016-04-22","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-20062.xml","doi":null,"earliestYearBP":450,"earliestYearCE":1500,"entryId":"noaa-recon-20062","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"AGS-1102757, AGS-1304422"}],"investigators":"Wise, E.K.","mostRecentYearBP":-63,"mostRecentYearCE":2013,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/20062","originalSource":null,"publication":[{"abstract":"The U.S. West Coast drought commencing in 2012 developed in association with a large, persistent high-pressure ridge linked to internal atmospheric variability. This study places the occurrence, spatial patterns, and associated circulation features of West Coast drought into a paleoclimate context through a synoptic dendroclimatology approach linking atmospheric circulation to surface hydroclimate patterns. Spatial reconstructions of upper-atmosphere pressure patterns and cool-season drought show that West Coast-wide drought, although relatively rare compared to north-south dipole drought, has occurred periodically since 1500 CE and is consistently associated with a strong ridge centered along the Pacific Northwest coast. Atmospheric blocking is also linked to north-dry dipole droughts, while south-dry and wider Western droughts indicate La Niña-type patterns. The transition latitude between the northern and southern sides of the western precipitation dipole, important for California hydroclimate patterns, has had frequent year-to-year fluctuations but remained centered on 40°N over the past five centuries.","author":{"name":"Erika K. Wise"},"citation":"Erika K. Wise. 2016. Five centuries of U.S. West Coast drought: Occurrence, spatial distribution, and associated atmospheric circulation patterns. Geophysical Research Letters, 43. doi: 10.1002/2016GL068487","edition":null,"identifier":{"id":"10.1002/2016GL068487","type":"doi","url":"http://dx.doi.org/10.1002/2016GL068487"},"issue":null,"journal":"Geophysical Research Letters","pages":null,"pubRank":"1","pubYear":2016,"reportNumber":null,"title":"Five centuries of U.S. West Coast drought: Occurrence, spatial distribution, and associated atmospheric circulation patterns","type":"publication","volume":"43"}],"reconstruction":"Y","scienceKeywords":["Precipitation Reconstruction"],"site":[{"NOAASiteId":"56788","geo":{"geoType":"Feature","geometry":{"coordinates":["32","49","-125","-114"],"type":"POLYGON"},"properties":{"easternmostLongitude":"-114","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"49","southernmostLatitude":"32","westernmostLongitude":"-125"}},"locationName":"Continent>North America>United States Of 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index"}]}],"dataTableName":"Wise2016SPI","dataTableNotes":null,"earliestYear":1500,"earliestYearBP":450,"earliestYearCE":1500,"mostRecentYear":2013,"mostRecentYearBP":-63,"mostRecentYearCE":2013,"species":[],"timeUnit":"AD"}],"siteName":"US West Coast"}],"studyCode":null,"studyName":"US West Coast 500 Year Gridded Standardized Precipitation Index Reconstruction","studyNotes":"Tree-ring based, gridded (0.5°x0.5°) cool-season (Oct-Mar) Standardized Precipitation Index (SPI) reconstruction for the US West Coast 1500-2013 CE.","version":"1.0","xmlId":"17891"}