Sentences with phrase «for urban heat bias»

In addition, he is correcting the data for urban heat bias by the so - called population density adjustment.

Indeed, the NOAA has stopped correcting for urban heat bias altogether, and their suface temperature record is diverging from other sources.

Not exact matches

However, the actual claim of IPCC is that the effects of urban heat islands effects are likely small in the gridded temperature products (such as produced by GISS and Climate Research Unit (CRU)-RRB- because of efforts to correct for those biases.

Therefore one must correct for the time of observation bias before one tries to determine the effect of the urban heat island»

There are good explanations of this bias as well, such as failure to properly account for the urban heat island effect.

Fortunately McIntyre has acknowledged that TOB must be considered in their analysis, as has Watts, which is a good start, but they must also account for the other biases noted above in order to draw any valid conclusions about urban heat influences.

There are too many potential sources of bias which are not accounted for, too many apples - to - oranges comparisons, and they can not draw any conclusions about urban heat influences until their data are homogenized and other non-climate influences are removed.

«[NASA is] supposed to make a «homogenisation adjustment,» to allow for [urban heat island (UHI)-RSB- bias,» Homewood wrote.

However, the preliminary analysis includes only a very small subset (2 %) of randomly chosen data, and does not include any method for correcting for biases such as the urban heat island effect, the time of observation, or other potentially influential biases.»

Energy balance climate sensitivity estimates are likely biased high due to the failure to account for the natural millennium cycle that is so obvious in the climate record, and the urban heat island effect.

2) Some stations must be biased warm by urban heat islands, but their influence on the global trend can't be detected with any of the techniques available for separating urban and non-urban stations.

Since then, a growing number of surface temperature measurement stations worldwide, coupled with improved methods for correcting for biases induced through urban heat island effects and other station siting and operational issues, have allowed for the development of accurate global temperature estimates.

Combining the OAS temperatures and OAA temperatures and using the century - scale trends for each identified in the paper -LRB--0.03 K / century and +0.78 K / century, respectively), it may be concluded that instrumental temperature stations located in non-urban areas and not subjected to artificial urban heating bias produce an overall warming trend of just 0.375 K / century (0.038 K / decade) during 1900 - 2010.

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».