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COMPARING THE PALMER DROUGHT INDEX AND THE STANDARDIZED PRECIPITATION INDEX1
Abstract
ABSTRACT: The Palmer Drought Index (PDI) is used as an indicator of drought severity, and a particular index value is often the signal to begin or discontinue elements of a drought contingency plan. The Standardized Precipitation Index (SPI) was recently developed to quantify a precipitation deficit for different time scales. It was designed to be an indicator of drought that recognizes the importance of time scales in the analysis of water availability and water use. This study compares historical time series of the PDI with time series of the corresponding SPI through spectral analysis. Results show that the spectral characteristics of the PDI vary from site to site throughout the U.S., while those of the SPI do not vary from site to site. They also show that the PDI has a complex structure with an exceptionally long memory, while the SPI is an easily interpreted, simple moving average process.
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Citations
Cited by
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Cook, E. R., Seager, R., Cane, M. A., & Stahle, D. W. (2007) · Earth-Science Reviews · doi:10.1016/j.earscirev.2006.12.002 · Cited by 862
A review of the relationships between drought and forest fire in the United States
Littell, J. S., Peterson, D. L., Riley, K. L., Liu, Y., & Luce, C. H. (2016) · Global Change Biology · doi:10.1111/gcb.13275 · Cited by 571
Twentieth-century hydroclimate changes consistent with human influence
Marvel, K., Cook, B. I., Bonfils, C. J. W., Durack, P. J., Smerdon, J. E., & Williams, A. P. (2019) · Nature · doi:10.1038/s41586-019-1149-8 · Cited by 317
Spatio‐temporal characteristics of the recent rainfall recovery in West Africa
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Metadata
- Authors
- Guttman, N. B.
- Venue
- JAWRA Journal of the American Water Resources Association
- Publisher
- Wiley
- Published
- 1998-02
- Volume
- 34
- Issue
- 1
- Pages
- 113-121
- ISSN
- 1093-474X (ISSN-L)
- 1752-1688
- OpenAlex
- W2068738735
- Cited by
- 1,140
- References
- 0
- FWCI
- 4.92
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: COMPARING THE PALMER DROUGHT INDEX AND THE STANDARDIZED PRECIPITATION INDEX1. https://app.cochat.ai/papers/10.1111/j.1752-1688.1998.tb05964.x
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- Guttman, N. B. (1998). COMPARING THE PALMER DROUGHT INDEX AND THE STANDARDIZED PRECIPITATION INDEX1. JAWRA Journal of the American Water Resources Association. https://doi.org/10.1111/j.1752-1688.1998.tb05964.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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