Sentences with phrase «station quality bias»

We discuss microclimate biases («poor station exposures») in our «Has poor station quality biased U.S. temperature trend estimates?»

We discuss this in some detail in our «Has poor station quality biased U.S. temperature trend estimates?»

Not exact matches

We carefully studied issues raised by skeptics: biases from urban heating (we duplicated our results using rural data alone), from data selection (prior groups selected fewer than 20 percent of the available temperature stations; we used virtually 100 percent), from poor station quality (we separately analyzed good stations and poor ones) and from human intervention and data adjustment (our work is completely automated and hands - off).

They specifically wanted to answer the question is «the temperature rise on land improperly affected by the four key biases (station quality, homogenization, urban heat island, and station selection)?»

The station where a bias or shift is know to exist in the data record may still be used in estimation of missing reports at nearby high quality stations for non-critical points (i.e not a recent, warm or cold value.

Looking at the adjustments, it seemed odd that they implied improving station location quality and reduced warming bias in the measurements, despite Anthony Watts work calling both assumptions into question.

-LSB-...] stations to better - quality rural stations through biased detection of changepoints.

There is accurate CO2 data but only since 1958 at Mauna Loa, as for temperature, well there are thousands of high quality rural weather stations throughout the world and especially in the US and the northern hemisphere that have long histories and NO UHI bias.

We carefully studied issues raised by skeptics: biases from urban heating (we duplicated our results using rural data alone), from data selection (prior groups selected fewer than 20 percent of the available temperature stations; we used virtually 100 percent), from poor station quality (we separately analyzed good stations and poor ones) and from human intervention and data adjustment (our work is completely automated and hands - off).

For poor quality stations, most of the neighbours will be similarly affected by siting biases.

was not that warming has occurred; it was that the level of warming was not affected by station selection bias, by homogenization bias, by poor station quality.

surfacestations.org has made a concerted effort to identify high - quality stations within the USHCN network (CRN1 - 2 stations) and preliminary indications are that the GISS U.S. estimate will not differ greatly from results from the «best» stations (though there will probably be a little bias.)

BEST used even more fragments from more lower quality stations and less constrained due to smaller fragments that do not show the local long term trend and are more susceptible to such assembling bias.

Berkeley Earth also has carefully studied issues raised by skeptics, such as possible biases from urban heating, data selection, poor station quality, and data adjustment.

For many years the BoM developed what it calls the High Quality network of 237 weather stations around Australia that meet strict criteria to ensure accurate temperature comparisons back to 1910, with an anomaly baseline from 1961 - 90 (see research published January 2013 re bias in the HQ network).

The group at NOAA that has not quality controlled weather station siting, and who did not document homogenization that gives an upward temperature bias.

They specifically wanted to answer the question is «the temperature rise on land improperly affected by the four key biases (station quality, homogenization, urban heat island, and station selection)?»

Either way, the adjustments look to be biased by station quality.