The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
Variations in the Pacific Decadal Oscillation over the past millennium
Open accessAbstract
Hydrologically sensitive tree‐ring chronologies from Pinus flexilis in California and Alberta were used to produce an AD 993–1996 reconstruction of the Pacific Decadal Oscillation (PDO) and to assess long‐term variability in the PDO's strength and periodicity. The reconstruction indicates that a ∼50 to 70 year periodicity in the PDO is typical for the past 200 years but, was only intermittently a strong mode of variability prior to that. Between AD 1600 and 1800 there is a general absence of significant variability within the 50 to 100 year frequency range. Significant variability within in the frequency range of 50 to 100 years reemerges between AD 1500 and 1300 and AD 1200 to 1000. A prolonged period of strongly negative PDO values between AD 993 and 1300 is contemporaneous with a severe medieval megadrought that is apparent in many proxy hydrologic records for the western United States and Canada.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
A Practical Guide to Wavelet Analysis
Torrence, C., & Compo, G. P. (1998) · Bulletin of the American Meteorological Society · doi:10.1175/1520-0477(1998)079<0061:apgtwa>2.0.co;2 · Cited by 14,890
A Pacific Interdecadal Climate Oscillation with Impacts on Salmon Production
Mantua, N. J., Hare, S. R., Zhang, Y., Wallace, J. M., & Francis, R. C. (1997) · Bulletin of the American Meteorological Society · doi:10.1175/1520-0477(1997)078<1069:apicow>2.0.co;2 · Cited by 7,099
Bradley, R. S., & Fritts, H. C. (1978) · Arctic and Alpine Research · doi:10.2307/1550667 · Cited by 4,518
An Introduction to Tree-Ring Dating
Stokes, M. A., & Smiley, T. L. (1996) · Medical Entomology and Zoology · Cited by 3,914
The Pacific Decadal Oscillation
Mantua, N. J., & Hare, S. R. (2002) · Journal of Oceanography · doi:10.1023/a:1015820616384 · Cited by 2,773
Fritts, H. C. (1972) · Scientific American · doi:10.1038/scientificamerican0572-92 · Cited by 2,603
Methods of Dendrochronology, Applications in the Environmental Sciences
Yamaguchi, D. K., Cook, E. R., & Kairiukstis, L. A. (1991) · Arctic and Alpine Research · doi:10.2307/1551446 · Cited by 1,682
From Anchovies to Sardines and Back: Multidecadal Change in the Pacific Ocean
Chavez, F. P., Ryan, J., Lluch-Cota, S. E., & Ñiquen C., M. (2003) · Science · doi:10.1126/science.1075880 · Cited by 1,641
Long-Term Aridity Changes in the Western United States
Cook, E. R., Woodhouse, C. A., Eakin, C. M., Meko, D. M., & Stahle, D. W. (2004) · Science · doi:10.1126/science.1102586 · Cited by 1,580
A Comprehensive Ocean-Atmosphere Data Set
Woodruff, S. D., Slutz, R. J., Jenne, R. L., & Steurer, P. M. (1987) · Bulletin of the American Meteorological Society · doi:10.1175/1520-0477(1987)068<1239:acoads>2.0.co;2 · Cited by 1,078
Cited by
The Pacific Decadal Oscillation, Revisited
Newman, M., Alexander, M. A., Ault, T. R., Cobb, K. M., Deser, C., Di Lorenzo, E., Mantua, N. J., Miller, A. J., Minobe, S., Nakamura, H., et al. (2016) · Journal of Climate · doi:10.1175/jcli-d-15-0508.1 · Cited by 1,318
Taylor, A. H., Trouet, V., Skinner, C. N., & Stephens, S. (2016) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1609775113 · Cited by 228
Robust sahel drought due to the Interdecadal Pacific Oscillation in CMIP5 simulations.
Villamayor, J., & Mohino, E. (2015) · Geophysical Research Letters · doi:10.1002/2014gl062473 · Cited by 55
Metadata
- Authors
- MacDonald, G. M., & Case, R. A.
- Venue
- Geophysical Research Letters
- Publisher
- American Geophysical Union (AGU)
- Published
- 2005-04
- Volume
- 32
- Issue
- 8
- ISSN
- 0094-8276 (ISSN-L)
- 1944-8007
- OpenAlex
- W2056681173
- Cited by
- 580
- References
- 25
- FWCI
- 10.44
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Variations in the Pacific Decadal Oscillation over the past millennium. https://app.cochat.ai/papers/10.1029/2005gl022478
- The paper
- MacDonald, G. M., & Case, R. A. (2005). Variations in the Pacific Decadal Oscillation over the past millennium. Geophysical Research Letters. https://doi.org/10.1029/2005gl022478
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
