Chapter05a - Dew, Frost and Fog • • • • • • •...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Dew, Frost and Fog
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
RECAP Hydrological cycle : transport of water and energy. Humidity : absolute humidity, specific humidity, water mixing ratio, relative humidity. Saturation pressure : the maximum vapor pressure at a given T. Dew point : the temperature to which air would have to be cooled in order to get saturated. The effect of large water bodies on the humidity of a climate (Florida/California). The effect of cooling/heating systems on the humidity in the house. Heat index : what the air temperature “feels like” to the average person for different combinations of temperature and relative humidity
Background image of page 2
Condensation As air cools, it becomes first saturated and then supersaturated -> condensation/deposition Condensation requires some initiator surface (dew, frost) nuclei (haze, fog, clouds) Classification of condensation nuclei according to size (not important) properties hygroscopic: “water- seeking”, condensation at RH<100% hydrophobic: “water- repelling”, condensation at RH>100%. unsaturated Super- saturated saturated
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Dew Condensation of water vapor on cool surfaces. Usually forms at ground level (air is coldest there). Frozen dew: air temperature drops below zero after dew has
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/08/2008 for the course MET 1010 taught by Professor Matchev during the Spring '08 term at University of Florida.

Page1 / 16

Chapter05a - Dew, Frost and Fog • • • • • • •...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online