Figure : utah-palmer-drought-severity-index

Utah Palmer Drought Severity Index

Figure 44.5

North Carolina State University
Kenneth E. Kunkel

This figure appears in chapter 44 of the NOAA-led State Summaries 2019 report.

Time series of the Palmer Drought Severity Index from the year 1000 to 2018. Values for 1895ā€“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 1980sā€“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.

This figure replaces figure 44.5: Utah Palmer Drought Severity Index

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