Sentences with phrase «near surface temperature station»

When asked to describe his «skepticism» about human - caused global warming, Watts went into a long discussion about his concerns that encroachment of human development near surface temperature stations has introduced a bias into the temperature record.

Not exact matches

The two longest ones are of temperature near the Earth's surface: a vast network of weather stations over land areas, and ship data from the oceans.

(1) In addition to the data of the near - surface temperatures, which are composed of measurements from weather stations and sea surface temperatures, there is also the microwave data from satellites, which can be used to estimate air temperatures in the troposphere in a few kilometers altitude.

The Surface Stations project has revealed that many of the thermometer shelters used for calculating temperature trends are currently located near artificial heating sources, such as the ones in the Marysville, California station shown above (the thermometer is at the point labelled MMTS Shelter).

To determine these differences it is important to survey areas where the weather stations, the urban one in particular, are not located near a geophysical boundary where surface temperatures in one direction are significantly different from those in other directions.

Estimates of temperature variations near the earth's surface are based on thermometer readings taken daily at thousands of land stations and on board thousands of ships.

Since the 1950s, research stations on the Antarctic Peninsula have recorded some of the largest increases in near - surface air temperature in the Southern Hemisphere.

The two that come to mind related to the «blacktop» effect on weather station reporting (higher ground temperatures in the immediate vicinity of urban weather stations that were only at or immediately near ground level due to urban development) and problems with ocean surface temperature measuring methods.

Under «well - mixed» conditions, this forces the near - surface temperature to be constrained to values near the freezing point of salt water, whether or not the associated land station is much warmer or colder.

But based on withholding tests, it is far more statistically likely that our results are closer to the truth — assuming the underlying station data is correct and that the covariance structure of the satellite data is a good proxy for the covariance structure of near - surface air temperature measurements.