Sentences with phrase «term calibration issue»
Not exact matches
The authors take advantage of a very straightforward analysis of climate proxy data, avoiding the highly technical and arcane issues of statistical calibration and methodology that are so frequently seized upon by those who dispute that recent large - scale warmth is anomalous in a long - term context.
http://www.realclimate.org/
«A number of studies have suggested that long - term irradiance - based measurements of cloud cover from satellite may be unreliable due to the inclusion of artifacts, difficulties in observing low - cloud, biases connected to view angles, and calibration issues [1, 2, 3, 4].
It's clear there is a calibration issue between the long term proxy (based on ∂ 18O measurement) and recent direct measurement of temperatures on the Greenland ice sheet.
Issues such as short and long term drift, aging, hysteresis, and non-linearity in each of these, as well as the quality of initial calibration and calibration markings all introduce errors within an instrument that are not removed by averaging observations.