Frank2010_GISS_uncertainty Published January 20, 2011 at 1244 × 964 in Surface temperature uncertainty, quantified Next → Figure 3. (•), the global surface air temperature anomaly series through 2009, as updated on 18 February 2010, (http://data.giss.nasa.gov/gistemp/graphs/). The grey error bars show the annual anomaly lower-limit uncertainty of ±0.46 C.