Vous avez cherché: thermometers (Tchèque - Anglais)

mercury thermometers can't measure within tenths of a degree (0,1)
mercury thermometers can't measure within tenths of a degree (0,1)

but thermometers had by then become widely available, and amateur meteorologists were making their own readings.
but thermometers had by then become widely available, and amateur meteorologists were making their own readings.

why should thermometers at least 34 years ago have measured higher temperatures most of which seem to have required lowering?
why should thermometers at least 34 years ago have measured higher temperatures most of which seem to have required lowering?

the warming trend is the same in rural and urban areas, measured by thermometers and satellites, and by natural thermometers.
the warming trend is the same in rural and urban areas, measured by thermometers and satellites, and by natural thermometers.

otherwise the effect may be too small to show up on simple (and rather inaccurate) thermometers like the liquid crystal ones you show.
otherwise the effect may be too small to show up on simple (and rather inaccurate) thermometers like the liquid crystal ones you show.

put a network of thermometers together, produce a monthly high and low averaged between stations and the same effect i mentioned will apply except more so: most unprecedented and subsequently unparalleled extremes will be found in the earlier history of the network.
put a network of thermometers together, produce a monthly high and low averaged between stations and the same effect i mentioned will apply except more so: most unprecedented and subsequently unparalleled extremes will be found in the earlier history of the network.

...analyzed several million daily high and low temperature readings taken over the span of six decades at about 1,800 weather stations across the country....a quality control process at the data center..looks for such potential problems as missing data as well as inconsistent readings caused by changes in thermometers, station locations, or other factors...
...analyzed several million daily high and low temperature readings taken over the span of six decades at about 1,800 weather stations across the country....a quality control process at the data center..looks for such potential problems as missing data as well as inconsistent readings caused by changes in thermometers, station locations, or other factors...