Figure : indicators-of-warming

Indicators of Warming from Multiple Datasets

Figure 1.1

University of Illinois at Urbana-Champaign, Cooperative Institute for Climate and Satellites - NC
Donald J. Wuebbles, Laura Stevens

This figure appears in chapter 1 of the Climate Science Special Report: The Fourth National Climate Assessment: Volume I report.

This image shows observations globally from nine different variables that are key indicators of a warming climate. The indicators (listed below) all show long-term trends that are consistent with global warming. In parentheses are the number of datasets shown in each graph, the length of time covered by the combined datasets and their anomaly reference period (where applicable), and the direction of the trend: land surface air temperature (4 datasets, 1850–2016 relative to 1976–2005, increase); sea surface temperature (3 datasets, 1850–2016 relative to 1976–2005, increase); sea level (4 datasets, 1880–2014 relative to 1996–2005, increase); tropospheric temperature (5 datasets, 1958–2016 relative to 1981–2005, increase); ocean heat content, upper 700m (5 datasets, 1950–2016 relative to 1996–2005, increase); specific humidity (4 datasets, 1973–2016 relative to 1980–2003, increase); Northern Hemisphere snow cover, March–April and annual (1 dataset, 1967–2016 relative to 1976–2005, decrease); arctic sea ice extent, September and annual (1 dataset, 1979–2016, decrease); glacier cumulative mass balance (1 dataset, 1980–2016, decrease). More information on the datasets can be found in the accompanying metadata. (Figure source: NOAA NCEI and CICS-NC, updated from Melillo et al. 2014;dd5b893d-4462-4bb3-9205-67b532919566 Blunden and Arndt 2016482100c5-394a-461e-8952-4907dee3cc97 ).

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This figure was created on September 02, 2016.

This figure was submitted on October 11, 2017.

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