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A continuous supply of cold unsaturated air from the east allowed the surface temperature to converge with the dewpoint temperature and drop below freezing as precipitation fell on the afternoon of 16 February.
The dry-bulb and dewpoint temperature data that served as input parameters for the calculations were obtained from the National Climatic Data Center (1997).
The dewpoint temperature is the temperature at which condensation occurs for air with a certain relative humidity.
The crossover temperature represents the minimum dewpoint temperature observed during the maximum heating of the day.
An altitude with an ambient air temperature of -4 degrees C and a dewpoint temperature of -5 degrees C has a great potential to contain clouds with supercooled liquid water.
Return and supply air dewpoint temperatures were obtained with a chilled mirror hygrometer.
The ability to monitor vital parameters is standard practice amongst many industries, for example food manufacturers are now able to check dewpoint temperatures of compressed air and take action to prevent spoiled batch runs, electronic component manufacturers are able to monitor nitrogen gas purities and take action to prevent high oxygen levels causing weak solder joints.
It provides measurement accuracy of [+ or -] 2[degrees]C for dewpoint temperatures ranging from -50[degrees]C to ambient.
The unit provides measurement accuracy of [+ or -] 2 C for dewpoint temperatures ranging from -50 C to ambient.
We did not detect a discernible influence on the conditions in the bounce house from their presence as temperature variations over time paralleled those outside the structure and dewpoint temperatures remained nearly constant.
However, dewpoint temperatures offshore, obtained from ship reports and compared with sea surface temperatures along the coast, provide a much better measure on the potential for dense coastal fog: dewpoints similar to or higher than the sea surface temperature favor fog.