Public Perception of Climate Change and the New Climate Dice

This year's analysis is for four 11-year periods 1980-1990, 1990-2000, 2000-2010, 2010,2020, with 1951-1980 base period as usual.

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Figure in Author Summary Published in Print

Figure P1. Frequency of occurence (y-axis) of local temperature anomalies divided by local standard deviation (x-axis) obtained by binning all local results for the indicated region and 11-year period into 0.05 frequency intervals. Area under each curve is unity. Standard deviations are for the 1951-1980 period.
In PDF. (Last modified: 2020/10/03)

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Figures in Warm/Cool Dice Colors [for NH Land]


In PDF, (Last modified: 2020/09/24)


In PDF (Last modified: 2020/09/25)

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Updates of Figures Published in PNAS Plus On-Line

Now we use GHCN v4 and ERSST v5.

Figure 1. Jun-Jul-Aug surface temperature anomalies relative to 1951-1980 mean. Number on upper right is the global mean (average over all area with data).
(Last modified: 2020/09/23)

Figure 1 but Dec-Jan-Feb. (Last modified: 2020/09/23)

Figure 2 Simplified. Standard deviation of local Jun-Jul-Aug (left) and Dec-Jan-Feb (right) mean surface temperature for 30-year-period 1951-1980. (Last modified: 2020/09/23)

Figure 3/6. Jun-Jul-Aug surface temperature anomalies in units of the local 1951-1980 standard deviation. (Last modified: 2020/09/23)

Figure 3/6. but for Dec-Jan-Feb.
(Last modified: 2020/09/23)

Shifting Dstribution of Temperature Anomalies
Figure 4. Frequency of occurence (y-axis) of local temperature anoma lies (relative to 1951-1980 mean) divided by local standard deviations (x-axis) obtained by counting how many gridboxes have anomalies within each 0.05 interval over 11-year periods. Area under each curve is unity.
PDF (Last modified: 2020/10/02)

Figure 5. Area covered by temperature anomalies in the categories defined as hot (> 0.43σ), very hot (> 2σ), and extremely hot (> 3σ) with analogous divisions for cold anomalies. Anomalies are relative to 1951-1980 climatology, with σ also from 1951-1980 data.
(Last modified: 2017/01/24)

Figure 7. Same as Fig. 5, but for the United States.
(Last modified: 2017/01/24)

Figure 8. Jun-Jul-Aug and Dec-Jan-Feb temperature anomalies (°C) for area shown on the right. (Last modified: 2011/10/18)

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Figures below will not be Updated

Figure 9. Frequency of occurrence (y-axis) of local temperature anomalies divided by local standard deviation (x-axis) obtained by binning all local results for 11-year periods into 0.05 frequency intervals. Area under each curve is unity. Standard deviations are for the indicated base periods. (Last modified: 2012/01/19)

Figure S1. Jun-Jul-Aug surface temperature anomalies in 1931, 1934, 1936, 1941, 1947, 1953. Number on upper right is the global mean (average over all area with data). (Last modified: 2012/03/26)

Figure S2. Jun-Jul-Aug surface temperature anomalies over land in 1931, 1934, 1936, 1941, 1947, 1953 relative to 1951-1980 mean temperature in unit of the local 1951-1980 standard deviation of temperature. Numbers above each map are the percent of surface area covered by each category in the color bar. (Last modified: 2012/03/26)