PPT-Precipitation Measurement and Data Analysis

Learning objectives Be able to estimate area average precipitation from point measurements using a variety of methods Estimate design rainfall amounts and intensities Develop ArcGIS skills for analysis . "Rain Drops Keep Falling on my Head" B.J. Thompson (1969). INTRODUCTION. How much rain do you get in your area?. How about snow?. This amount varies around the world. . For example, people living in Spokane, Washington get much more rain than those in Phoenix, Arizona.. . Photograph: Tony Clarke, VOCALS . REx. flight RF07. Robert Wood. University of Washington. Dave Leon and Jeff Snider, University of Wyoming. Radiative. impact of cloud droplet concentration variations. CBRFC Stakeholder Forum. July 31, 2012. PRECIPITATION DATA. – . WHY IS THIS IMPORTANT ?. Primary Impacts:. Immediate runoff from rainfall events. Affects soil moisture conditions and seasonal volume forecasts. Read and study each page of this PowerPoint with your table group.. Each group member should take notes about each type of precipitation. . You are looking for information that describes:. How the different types of precipitation form. Crown King. May Average: 0.30”. June Average: 0.26”. July Average: 3.44”. August. . Average: . 3.34”. Crown King 2016 . (. 86. % . of . average. ). May: 1.20”. June: 0.36”. July: 1.60”. Water vapor, droplets of water suspended in the air, builds up in the Earth's atmosphere. . Water vapor in the atmosphere is visible as clouds and fog. . Water vapor collects with other materials, such as dust, in clouds. Precipitation condenses, or forms, around these tiny pieces of material, called cloud condensation nuclei (CCN).. Relief. There are three reasons why air is forced upward also forming three types of precipitation.. Relief . Precipitation- caused by winds carrying air up over a mountain barrier.. Convectional Precipitation. Idar Barstad. Idar.Barstad. @uni.no. Uni Research – (. UniComputing / Bjerknes Centre for Climate Research). Motivation: . Orographic precipitation and climate change. Results from a small-scaled field campaign. Tang, S., P. . Gleckler. , S. . Xie. , J. Lee, C. Covey, C. Zhang, M.-S. . Ahn. , 2021: Evaluating Diurnal and Semi-Diurnal Cycle of Precipitation in CMIP6 Models Using Satellite- and Ground-Based Observations. . Acid Precipitation. Acid Precipitation. Acid precipitation. includes all forms of precipitation . (rain, sleet, snow. ). with a high concentration of acids present. . Acid precipitation forms when water vapor and droplets in the atmosphere combine with sulfuric and nitric oxides. This forms sulfuric and nitric acids, which have a lower pH than typical rainfall.. LECTURE 5. PRECIPITATION GAUGE NETWORK. To have an idea of areal distribution of precipitation there should be adequately planned rain gauge network. There are two reasons to plan a network:. Catch area of a precipitation gauge is very small. Case Studies developed for the GPM Disease Initiative. These case studies illustrate the many ways in which NASA Earth-observing data is being used to predict, respond to, and better understand vector-borne and water-related disease.. Artificial rain making.. Process of Precipitation:. Precipitation is caused by condensation of water . vapours. of the air mass. . The ascending air mass with sufficient amount of water . vapours. becomes saturated due to adiabatic cooling. Condensation of water . ---Focus on zonal mean here (can apply to zonal inhomogeneities too). ---Apply to simulated response to external forcing in coupled climate models. 4XCO. 2. , Last Glacial Maximum, Mid-Holocene, Freshwater hosing .