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Figure : utah-palmer-drought-severity-index
Utah Palmer Drought Severity Index
Figure 44.5North Carolina State University
Kenneth E. Kunkel
Time series of the Palmer Drought Severity Index from the year 1000 to 2018. Values for 1895–2018 (red) are based on measured temperature and precipitation. Values prior to 1895 (blue) are estimated from indirect measures such as tree rings. The thick black line is a running 20-year average. In the modern era, the wet periods of the early 1900s and the 1980s–1990s and the dry period of the 1950s are evident. The extended record indicates periodic occurrences of similarly prolonged wet and dry periods. Source: CICS-NC and NOAA NCEI.
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This figure was created on April 18, 2019.
This figure was submitted on September 30, 2019.
ProvenanceThis figure replaces figure 44.5: Utah Palmer Drought Severity Index
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