PPT-EVAPORATION INTRODUCTION

A process whereby liquid water is converted to water vapour and removed from the vapour surface Evaporation consists of 2 components ie The energy component and the aerodynamic component The energy component is responsible conversion of liquid water to water vapour. A Presentation by . Lloyd Samson . Thole. IP Expert, Zambia.. . National Meeting on the Implementation of the WIPO Development Agenda Project: Capacity Building in the Use of Appropriate Technology-Specific Technical and Scientific Information as a Solution for Identified Development Challenges in . What is evaporation?. How is evaporation measured?. How is evaporation estimated?. Reading: Applied Hydrology Sections 3.5 and 3.6. With assistance from Dan Siegel and Marcy Litvak. Evaporation. What is evaporation?. Evaporation is the process in which a liquid changes to the gaseous state at the free surface, below the boiling point through the transfer of heat energy . The rate of evaporation is depended on the of polonium . from. lead-. bismuth. . eutectic. . nuclear. . coolant. Borja Gonzalez . Prieto. 1,2. , Jun . Lim. 1. , Kris . Rosseel. 1. , Johan . Martens. 2. . and Alexander . Aerts. 1. 1. Conditioning. Daily Operations and Accounting. Daily estimates are used for operations and accounting at certain reservoirs, but not all. Estimates are typically based on pan evaporation measurements or reference evapotranspiration. Liquids have molecules moving around in them. . Temperature is the average kinetic energy (which depends on the speed) of these molecules.. Some are moving. faster than others!. If they are moving fast enough, at just the right angle,. How is evaporation measured?. How is evaporation estimated?. Reading: Applied Hydrology Sections 3.5 and 3.6. With assistance from Dan Siegel and Marcy Litvak. Evaporation. What is evaporation?. How is evaporation measured?. (With emphasis on shallow water bodies) . 1. ET Workshop. 12-Mar-2010. INTRODUCTION. Evaporation is rarely measured directly. Estimating methods include:. pan coefficient . x. measured pan evaporation. and . Water . Budget, Part 1. . . Tamlin Pavelsky, Associate Professor of Global Hydrology. Department of Geological Sciences. University of North Carolina. San Diego, CA. Fairbanks, AK. Mean Annual . Alison Radei. Mentors: Dr. Mary Nichols and Michelle Cavanaugh. USDA-ARS-Southwest Watershed Research Center . April 12, 2014. Background. Evaporation is a critical component of the hydrologic cycle. Rotary Evaporation. Hazard. Control. Frost bite. Wear insulated gloves when handling dry . ice. Chemical spills. Secure the clamp on the collection . flask,. and secure the bump trap. Always . wear PPE. K. p. ).. Computation of Potential and Actual Evapotranspiration (ET) status by using pan evaporation data and . K. p. value.. Learning Objectives. Be able to . calculate. Evaporation from a lake or reservoir using the following methods. Energy Balance (p304). Aerodynamic Method (p307). Combined Method (p309). Priestley-Taylor (p309). “Net rate of vapor transport to the atmosphere”. Reverse process of precipitation. Evaporation considered to be a problem for reservoirs storage on one hand may prove very valuable on the other hand .