Sentences with phrase «measurement biases introduced»

Systematic measurement biases introduced a spurious cooling trend since 2003.

Not exact matches

The progressive increase in the ratio of intrinsically warmer (ships) to intrinsically cooler (buoys) measurements introduces a cooling bias in the trend for the combined data.

The problem with the historical data (besides accuracy and repeatability and quality control questions,...) is that many of the series or single measurements were done at such places like Diekirch, which introduces a strong positive bias.

So you might ask if past measurement techniques introduced a bias that would show in the long - term trend.

By the way, think about what these adjustments mean — adjusting recent temperatures down means that our growing urban society and hot cities are somehow introducing a recent cooling bias in measurement.

The range of the gradient is 12 kilometers (grid 12 km by 12 km) and its purpose is to show whether or not accurate and meaningful C12 / C14 measurements can be made anywhere near a powerplant (for instance) without introducing the same bias as, say, an «urban heat island».

What is the bias in degrees Celsius introduced as a result of aggregating temperature data from different measurement heights, aerodynamic roughnesses, and thermodynamic stability?

In general, measurement error tends to decrease the ability to detect an effect that is in fact present and therefore introduces a conservative bias.39