Figure 31.7

North Carolina State University
Kenneth E. Kunkel

This figure appears in chapter 31 of the NOAA-led State Summaries 2019 report.

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 similar extended wet and dry periods. Source: CICS-NC and NOAA NCEI.

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The time range for this figure is January 01, 1000 (00:00 AM) to December 31, 2000 (00:00 AM).

This figure was created on February 21, 2019.

This figure was submitted on June 03, 2019.

Provenance

This figure replaces figure 31.7: New Mexico Palmer Drought Severity Index

This figure is composed of this image :