Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-18T04:40:41.070Z Has data issue: false hasContentIssue false

Climatic Regionalization and the Spatio-Temporal Occurrence of Extreme Single-Year Drought Events (1500–1998) in the Interior Pacific Northwest, USA

Published online by Cambridge University Press:  20 January 2017

Paul A. Knapp*
Affiliation:
Department of Anthropology and Geography, Georgia State University, Atlanta, 30303, Georgia
Henri D. Grissino-Mayer
Affiliation:
Department of Geography, The University of Tennessee, Knoxville, 37996, Tennessee
Peter T. Soulé
Affiliation:
Department of Geography and Planning, Appalachian State University, Boone, North Carolina, 28608
*
1To whom correspondence should be addressed. E-mail: gegpak@langate.gsu.edu.

Abstract

Tree-ring records from western juniper (Juniperus occidentalis var. occidentalis Hook.) growing throughout the interior Pacific Northwest identify extreme climatic pointer years (CPYs) (i.e., severe single-year droughts) from 1500–1998. Widespread and extreme CPYs were concentrated in the 16th and early part of the 17th centuries and did not occur again until the early 20th century. The 217-yr absence of extreme CPYs may have occurred during an extended period of low variance in the Pacific Decadal Oscillation. We mapped climatic boundaries for the interior Pacific Northwest based on the location of sites with similar precipitation variability indices. Three regions, the Northwest (based on chronologies from nine sites), the Southwest (four sites), and the East (five sites) were identified. Our results suggest that western juniper radial growth indices have substantial interannual variability within the northwestern range of the species (central Oregon), particularly when compared with western juniper growing in its eastern range (eastern Oregon, southeastern Idaho, and northern Nevada) and southwestern range (southern Oregon and northeast California). We suspect that the substantial differences in the variability of western juniper radial growth indices are linked to the influence of ENSO events on winter/spring precipitation amounts.

Type
Research Article
Copyright
University of Washington

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Acker, J.C., and Soulé, P.T. Temporal characteristics of Pennsylvania snowfall, 1950–51 through 1989–90. Physical Geography 16, (1995). 188 204.CrossRefGoogle Scholar
Biondi, F., Gershunov, A., and Cayan, D.R. North Pacific decadal climate variability since 1661. Journal of Climate 14, (2001). 5 10.Google Scholar
Bond, G., Kromer, B., Beer, J., Muscheler, R., Evans, M.N., Showers, W., Hoffmann, S., Lotti-Bond, R., Hajdas, I., and Bonani, G. Persistent solar influence on North Atlantic climate during the Holocene. Science 294, (2001). 2130 2136.Google Scholar
Bridge, M.C., Gasson, P.E., and Cutler, D.F. Dendroclimatological observations on trees at Kew and Wakehurst Place: Event and pointer years. Forestry 69, (1996). 263 269.Google Scholar
Brubaker, L.B. Spatial patterns of tree-growth anomalies in the Pacific Northwest. Ecology 61, (1980). 798 807.Google Scholar
Cattell, R.B. The scree test for the number of factors. Multivariate Behavioral Research 1, (1966). 245 276.Google Scholar
D'Arrigo, R., Jacoby, G., Free, M., and Robock, A. Northern hemisphere temperature variability for the past three centuries: Tree-ring and model estimates. Climatic Change 42, (1999). 663 667.Google Scholar
Dean, J.S., and Funkhouser, G.S. Dendroclimatic reconstructions for the southern Colorado Plateau. Waugh, W.J. Climate Change in the Four Corners and Adjacent Regions: Implications for Environmental Restoration and Land-Use Planning. (1995). Mesa State College, Grand Junction. 85 104.Google Scholar
Dyer, T.G.J. The assignment of rainfall stations into homogeneous groups: An application of principal components analysis. Quarterly Journal of the Royal Meteorological Society 101, (1975). 1005 1013.CrossRefGoogle Scholar
Earle, C. J. (1993). Asynchronous drought in California streamflow as reconstructed from tree-rings. Quaternary Research 39, 290299.,Google Scholar
Eder, B.K., Davis, J.M., and Monahan, J.F. Spatial and temporal analysis of the Palmer Drought Severity Index over the southeastern United States. Journal of Climatology 7, (1987). 31 56.CrossRefGoogle Scholar
Fritts, H. C., and Shao, X. M. (1992). Mapping climate using tree-rings from western North America.. In Climate Since A.D. 1500R. S. Bradley and P. D. Jones, Eds., pp. 269295. Routledge, London.Google Scholar
Fritts, H.C., Lofgren, G.R., and Gordon, G.A. Variations in climate since 1602 as reconstructed from tree rings. Quaternary Research 12, (1979). 18 46.Google Scholar
Gershunov, A., and Barnett, T.P. Interdecadal modulation of ENSO teleconnections. Bulletin of the American Meteorological Society 79, (1998). 2715 2725.2.0.CO;2>CrossRefGoogle Scholar
Gershunov, A., Barnett, T., and Cayan, D. North Pacific interdecadal oscillation seen as factor in ENSO-related North American climate anomalies. EOS, Transactions, American Geophysical Union 80, (1999). 25 30.Google Scholar
Graumlich, L.J. Precipitation variation in the Pacific Northwest (1675–1975) as reconstructed from tree-rings. Annals of the Association of American Geographers 77, (1987). 19 29.Google Scholar
Graumlich, L.J., and Brubaker, L.B. Reconstruction of annual temperature (1590–1979) for Longmire, Washington, derived from tree rings. Quaternary Research 25, (1986). 223 234.Google Scholar
Grissino-Mayer, H.D., and Fritts, H.C. The International Tree-Ring Data Bank: an enhanced global database serving the global scientific community. The Holocene 7, (1997). 235 238.CrossRefGoogle Scholar
Holmes, R.L., Adams, R.K., and Fritts, H.C. Tree-Ring Chronologies of Western North America: California, Eastern Oregon and Northern Great Basin. Chronology Series VI (1986). Univ. of Arizona; Press, Tucson.Google Scholar
Hughes, M.K., and Brown, P.M. Drought frequency in central California since 101 B.C. recorded in giant sequoia tree rings. Climate Dynamics 6, (1992). 161 167.Google Scholar
Kadonaga, L.K., Podlaha, O., and Whiticar, M.J. Time series analyses of tree ring chronologies from Pacific North America: Evidence for sub-century climate oscillations. Chemical Geology 161, (1999). 339 363.Google Scholar
Karl, T.R., and Koscielny, A.J. Drought in the United States: 1895–1981. Journal of Climatology 2, (1982). 313 329.Google Scholar
Keen, F.P. Climatic cycles in eastern Oregon indicated by tree-rings. Monthly Weather Review 65, (1937). 175 188.2.0.CO;2>CrossRefGoogle Scholar
Knapp, P.A., Soulé, P.T., and Grissino-Mayer, H.D. Post-drought growth responses of western juniper (Juniperus occidentalis var. occidentalis) in central Oregon. Geophysical Research Letters 28, (2001). 2657 2660.CrossRefGoogle Scholar
Knapp, P.A., Soulé, P.T., and Grissino-Mayer, H.D. Detecting potential regional effects of increased atmospheric CO2 on growth rates of western juniper. Global Change Biology 7, (2001). 903 917.CrossRefGoogle Scholar
Leathers, D.J., Mote, T.L., Kuivinen, K.C., McFeeters, S., and Kluck, D.R. Temporal characteristics of USA snowfall 1945–46 to 1984–85. International Journal of Climatology 13, (1993). 65 76.Google Scholar
Mantua, N.J., Hare, S.R., Zhang, Y., Wallace, J.M., and Francis, R.C. A Pacific interdecadal climate oscillation with impacts on salmon production. Bulletin of the American Meteorological Society 78, (1997). 1069 1079.2.0.CO;2>CrossRefGoogle Scholar
Meyer, F.D. Pointer year analysis in dendroecology: A comparison of methods. Dendrochronologia 16–17, (1999). 193 204.Google Scholar
Mitchell, V.C. The regionalization of climate in the western United States. Journal of Applied Meteorology 15, (1976). 920 927.Google Scholar
Namias, J. Some causes of United States drought. Journal of Climate and Applied Meteorology 22, (1983). 30 39.Google Scholar
Peterson, D.L., Silsbee, D.G., and Redmond, K.T. Detecting long-term hydrological patterns at Crater Lake, Oregon. Northwest Science 73, (1999). 121 130.Google Scholar
Redmond, K.T., and Koch, R.W. Surface climate and streamflow variability in the western United States and their relationship to large-scale circulation indices. Water Resources Research 27, (1991). 2381 2399.CrossRefGoogle Scholar
SAS User's Guide. Statistics, Version 5. (1985). SAS Institute, Cary.Google Scholar
Schweingruber, F.H. Tree Rings: Basics and Applications of Dendrochronology. (1988). Reidel, Dordrecht.Google Scholar
Schweingruber, F.H., Eckstein, D., Serre-Bachet, F., and Bräker, O.U. Identification, presentation and interpretation of event years and pointer years in dendrochronology. Dendrochronologia 8, (1990). 9 34.Google Scholar
Shortle, W.C., Smith, K.T., Minocha, R., Minocha, S., Wargo, P.M., and Vogt, K.A. Tree health and physiology in a changing environment. Mickler, R.A., Birdsey, R.A., and Hom, J. Responses of Northern Forests to Environmental Change. (2000). Springer-Verlag, New York. 229 274.Google Scholar
Soulé, P.T. Spatial patterns of multiple drought types in the contiguous United States: A seasonal comparison. Climate Research 1, (1990). 13 21.Google Scholar
Woodhouse, C.A., and Kay, P.A. The use of tree-ring chronologies to show spatial and temporal changes in an air mass boundary. Physical Geography 11, (1990). 172 190.Google Scholar