3 ms·
It's difficult even with that. The mean temperature is calculated via inference (obviously you can't have a thermometer everywhere). And there's occasional adju
by bjwbell 11y ago
It's difficult even with that. The mean temperature is calculated via inference (obviously you can't have a thermometer everywhere). And there's occasional adjustments to how the global temp. is inferred. The NOAA recently did one [0].
They have a nice comparison list of the ten warmest years [1].
[0] http://www.ncdc.noaa.gov/sotc/global/2015/5/supplemental/page-1/ http://www.ncdc.noaa.gov/sotc/global/2015/5/supplemental/pag...
[1] http://www.ncdc.noaa.gov/sotc/global/2015/5/supplemental/page-3 http://www.ncdc.noaa.gov/sotc/global/2015/5/supplemental/pag...
- leni536 11y agoThat's interesting, should be hard to not introduce a systematic error.
- bjwbell 11y agoThat's why I prefer the data from satellite measurements. There's a couple for surface temperature at http://www.nsstc.uah.edu/climate/ http://www.nsstc.uah.edu/climate/ & http://www.remss.com/measurements/upper-air-temperature http://www.remss.com/measurements/upper-air-temperature.