2012 one of 10 warmest years on record globally
Posted by feww on August 7, 2013
The following excerpts are from ‘State of the Climate in 2012,’ a 2-dimentional annual report prepared by the American Meteorological Society (AMS), with researchers from NOAA’s National Climatic Data Center in Asheville, NC acting as lead editors.
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Earth more rapidly warming since 1970: Report
Since 1976, the earth has experienced annual temperatures above the long-term average. The rate of warming is 0.06°C (0.11°F) per decade since 1880 and a more rapid 0.16°C (0.28°F) per decade since 1970, according to the 2012 annual report from NOAA’s National Climatic Data Center.
Earth’s average annual surface temperature is higher today than it was when record keeping began more than a century ago. The red line shows how far above or below the 1981–2010 average (dashed line at zero) the combined land and ocean temperature has been each year since 1880. The data shown are from NOAA’s National Climatic Data Center, one of several temperature analyses included in the State of the Climate in 2012, all of which show a similar warming trend. Graph adapted from Figure 2.1, in BAMS State of the Climate in 2012.
The largest of warm anomalies in 2012 were observed across the Northern Hemisphere higher latitudes: The United States, Canada, southern Europe, western Russia and the Russian Far East, said the report.
Sea levels reached record highs in 2012. Globally, sea level has been increasing at an average rate of 3.2 ± 0.4 mm per year over the past two decades.
The global surface temperature ranked among the top 10 warmest years on record. Over land and ocean combined, 2012 was between 0.14° and 0.17° Celsius (0.25°and 0.31° Fahrenheit) above the 1981–2010 average, depending on the analysis. The globally averaged annual temperature over land was 0.24°–0.29°C (0.43°-0.52°F) above average. And averaged globally, the 2012 ocean temperature was 0.10°–0.14°C (0.18°-0.25°F) above average. [NOAA]
Surface temperatures in 2012 compared to the 1981-2010 average. NOAA map by Dan Pisut, NOAA Environmental Visualization Lab, based on based on Merged Land and Ocean Surface Temperature data from the National Climatic Data Center. Full report is posted HERE.
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