A year and half ago Steve recalled some encounters with NASA GISS. One could imagine that after all that embarrassment the quality control in GISS temperature products was by now highly improved. One could be also wrong.

In the March 2010 GISS temperature anomaly map Finland appears as a “hot spot” surrounded by cold temperatures:



GISS station values are even more spectacular, the warmest March on record is set in every Finnish station GISS is following. For instance, according to GISS, the mean March temperature in Sodankylä (61402836000) was a remarkable +1.5 °C beating the old record (-2.2 °C) from 1920 by 3.7 °C!

Well, according to the Finnish Meteorological Institute, March 2010 was colder than usual all over Finland, especially in the northern part. For instance, the mean temperature in Sodankylä was -10.3 °C, which is almost three degrees below the base period 1971-2000 average (-7.5 °C). So the GISS March value for Sodankylä is off by amazing 11.8 °C!

Some quality control, please!

h/t: Leone



