Figure : temp-reconstruction

Pollen-Based Temperature Reconstruction

Figure 6.2

National Oceanic and Atmospheric Administration National Centers for Environmental Information NCEI
Eugene R. Wahl

This figure appears in chapter 6 of the Climate Science Special Report: The Fourth National Climate Assessment: Volume I report.

Pollen-based temperature reconstruction for temperate North America. The blue curve depicts the pollen-based reconstruction of 30-year averages (as anomalies from 1904 to 1980) for the temperate region (30°–55°N, 75°–130°W). The red curve shows the corresponding tree ring-based decadal average reconstruction, which was smoothed and used to calibrate the lower-frequency pollen-based estimate. Light (medium) blue zones indicate 2 standard error (1 standard error) uncertainty estimations associated with each 30-year value. The black curve shows comparably smoothed instrumental temperature values up to 1980. The dashed black line represents the average temperature anomaly of comparably smoothed instrumental data for the period 2000–2006. (Figure source: NOAA/NCEI).

Free to use with credit to the original figure source.

This figure was created on October 14, 2016.

This figure was submitted on October 06, 2017.


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