PPT-Chapter 4 Atmospheric Humidity

2019 Cengage Learning Inc All rights reserved Circulation of Water in the Atmosphere 1 of 2 Water vapor in the air transforms into cloud particles Humidity amount of water vapor in the air. :. Radiosondes, Dropsondes and . Driftsondes. Kate Young . & . Junhong. . Wang. kbeierle. @. ucar.edu. NCAR Earth Observing Laboratory. National Center for . Atmospheric Research. Weather/Climate. with . climate variability and change . Seminar in Atmospheric Science, EESC G9910. Diagnosing ENSO from atmospheric composition (ozone measured from space). Ziemke. et al. ., 2010; . Oman et al. ., 2011. Chapters 4 and 5. 1. Class #3 July 9, 2010. Atmospheric Humidity. Chapter 4. 2. Class #3 July 9, 2010. Circulation of Water in the Atmosphere. A general definition of humidity is the amount of water vapor in the air.. ABSOLUTE HUMIDITY:. Absolute humidity (expressed as grams of water vapor per cubic meter volume of air) is a measure of the actual amount of water vapor (moisture) in the air, regardless of the air's temperature. The higher the amount (weight) of water vapor per kilogram, the higher the absolute humidity. . These figures were all obtained from the National Climatic Data Center. High humidity can lead to fogs. This is the average annual number of heavy fog days.. Advection Fog. Radiation Fog. Two views from the steps to the Quad. Evaluation of moisture characteristics associated with heavy daily rainfall. Dependence on region/season. Progressing to hourly rain gauge data and additional precursor diagnostics (e.g. wet bulb & dew point temperature). Humidity refers to the amount of moisture (water vapor) in the surrounding air.. Relative. Humidity is a measure of the amount of moisture in the air . compared. with the amount of moisture the air can hold.. for the GOCI. Jae Hyun . Ahn. *. Joo-Hyung. . Ryu. *. Young Jae Park*. Yu-Hwan . Ahn. *. Im. Sang Oh**. Korea Ocean Research & Development Institute. Seoul National University. I n d e x _. Introduction . and Climate (Chap 6). Atmospheric General Circulation. Also: Global or planetary circulation. . The general circulation (GC) of the atmosphere is the totality of motions that characterize the . large scale. :. Radiosondes, Dropsondes and Driftsondes. Kate Young & Junhong Wang. NCAR Earth Observing Laboratory. National Center for . Atmospheric Research. Weather/Climate. Societal Impacts. Pollution/Air Chemistry. SentryPRODUCTOVERVIEWThe Sentry TEHU-2222 is a wireless temperature and humidity monitoring device and component of the SensiNetwireless sensor network It reports highly accurate real-time ambient l EARTH SURFACE. gravity. random. motion. Weight of all air molecules is propagated to surface by random motion of molecules. Random motion of molecules causes pressure to be applied in all directions. Water . Vapour. in Atmosphere. Amount of water . vapour. in atmosphere (. humidity) is . measured by, an instrument called hygrometer.. Significance of Atmospheric Moisture. • Water . vapour. absorbs . Vapour Pressure. , . Relative Humidity . and . Dew point temperature. .. . The partial pressure in air due to water vapour alone is called “vapour pressure”.. . It is expressed in energy units viz., millibar or millimetre of mercury..