noaa-tree-9900 Pohl - Lava Cast Forest - PIPO - ITRDB OR090 Pohl, K.A.; Hadley, K.S.; Arabas, K.B. Pohl - Lava Cast Forest - PIPO - ITRDB OR090 2010-09-29 NCDC-Paleoclimatology ONLINE Files 10.25921/rhjw-1a29 https://www.ncdc.noaa.gov/paleo/study/9900 Investigator K.A. Pohl Investigator K.S. Hadley Investigator K.B. Arabas earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF50B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF15A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF02A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF21A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF21B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF22B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF23B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF26A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF36A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF44A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF48A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF16A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF23A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF36B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF42A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF04B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF30A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF35A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF42B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF46B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF09B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF24A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF25A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF25B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF29A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF30B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF43B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF26B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF27A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF27B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF39B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF40B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring age,null,null,year Common Era,null,tree ring,null,null,N,null earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF14A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF28A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF31A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF39A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF40A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF44B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF47A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF49A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF49B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF50A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF01A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF19A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF31B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF33A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF34A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF37B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF45A; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree ring total ring width,null,null,millimeter,null,tree ring,null,null,N,Tree ID: LCF48B; units are 0.01 mm if end-of-series marker is 999 and 0.001 mm if end-of-series marker is -9999 earth science paleoclimate tree-ring width geoscientificInformation drought PIPO Pinus ponderosa Douglas ex C. Lawson ponderosa pine western yellow pine 1455 AD 1999 AD 495 cal yr BP -49 cal yr BP Complete 43.6833 43.6833 -121.25 -121.25 1500 1500 Continent North America United States Of America Oregon Lava Cast Forest>LATITUDE 43.6833>LONGITUDE -121.25 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

325 Broadway, E/NE31

Boulder CO 80305-3328 USA online ASCII Pohl, K.A., K.S. Hadley, and K.B. Arabas. 2002. A 545-Year drought reconstruction for Central Oregon. Physical Geography 23(4): 302-320.

Using a 545-year ponderosa pine (Pinus ponderosa) tree-ring chronology, we examine the drought history of central Oregon to: (1) determine the relationship among drought, ENSO (El Niño/Southern Oscillation), and the PDO (Pacific Decadal Oscillation), and (2) compare the climatic sensitivity of ponderosa pine and western juniper (Juniperus occidentalis) to determine their suitability as interchangeable climate proxies. Our climatic reconstruction explained 35% of the variance in historical Palmer’s Drought Severity Index (PDSI) values and revealed severe drought periods during the 1480s, 1630s, 1700s, and 1930s. The most sustained drought period in our reconstruction occurred during the 1930s, with the most severe single drought year occurring in 1489. We found a significant (p < .01) but weak relationship between our ponderosa pine chronology and ENSO and the PDO, explaining 9% and 12% of the variation respectively. Both ponderosa pine and western juniper record periods of severe regional drought, but western juniper is more sensitive to regional and seasonal climatic variations, whereas ponderosa pine is more responsive to temperature change. These differences suggest that their substitutability as climate proxies in dendroecological studies is limited. STUDY NOTES: Cores collected from ponderosa pine growing on lava flows were used to # reconstruct the climate history at Lava Cast Forest area of Newberry # National Volcanic Monument in central Oregon. Annual Ring-width # measurements were used identify years of extreme drought, reconstruct # PDSI, and estimate the influence of ENSO and PDO on tree-growth. # # NOAA Template Raw Measurements file added 2019-02-08.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/correlation-stats/or090.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/or090-noaa.rwl Raw Measurements - NOAA Template File; or090-noaa.rwl GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/or090.rwl USA/NOAA DIF Version 9.8.4 2019-02-13 2019-02-13