The Metrology of Thermometers

For those that don’t notice, this is about metrology, not meteorology, though meteorology uses the final product. Metrology is the science of measurement. Since we had this recent paper from…

How not to measure temperature, part 50. How to make a rural station "urban"

One of the things that happens when your work becomes well known is that people send you things to look at. Such is the case for today’s subject. Here we…

Inside the ASOS HO83 Temp/dewpoint sensor

HO83 ASOS Hygrothermometer (temperature/dewpoint sensor) Much has been written about problems with artificially high temperature readings due to the HO83 aspirated air temperature/dewpoint temperature sensor used on NOAA Automated Surface…