PPT-Review Session 1 Events during Precipitation - Infiltration

Not all water that falls will reach the water table Infiltration Capacity is measure of a soils capacity to absorb water Highly variable soil type but also the same soil varies depending on current moisture content. Infiltration definitions. Infiltration rate. : the volume of water flowing into the soil profile per unit of surface area per unit time. Infiltrability. : the infiltration rate resulting when water at atmospheric pressure is made freely available at the soil surface. Introduction. Green . Ampt. method. Ponding time . Reading: Applied Hydrology Sections 5.1 to 5.6. depth. Wetting Zone. Transmission. Zone. Transition Zone. Saturation Zone. Wetting Front. q. Infiltration. flow. (Mays p 310-321). Learning objective. Be able to calculate infiltration, cumulative infiltration and time to ponding using the Green-. Ampt. method as given in Mays Section . 7.4. The rate at which water can infiltrate is important for determining the partition between whether rainfall infiltrates or becomes runoff that flows overland to streams.. Learning objective. Be able to calculate infiltration, infiltration capacity and runoff rates using the methods described in the Rainfall Runoff workbook chapter 5 and . Dingman. . chapter 6.. Problem 1 as an example. 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. (Mays p 310-321). Learning objective. Be able to calculate infiltration, cumulative infiltration and time to ponding using the Green-. Ampt. method as given in Mays Section . 7.4. The rate at which water can infiltrate is important for determining the partition between whether rainfall infiltrates or becomes runoff that flows overland to streams.. Ethan Coffel. SREX Ch. 3. Low/medium confidence in heavy . precip. changes in most regions due to conflicting observations or lack of data. Medium confidence in Europe: winter . precip. has increase in some areas, but summer . Presented to Caltrans and RWQCB Staff. May 10, 2013. Prepared by . Caltrans . and Office of Water Programs. . 1. Presented by Sean Penders (Caltrans). Eric Berntsen (SWRCB). Brian Currier (CSUS-OWP). 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”. Hydrology and Water Resources . RSGIS. Institute of Space Technology. October . 11 & 23, . 2013. Infiltration, Percolation, Seepage. Infiltration. Water moving into soil by crossing the soil surface. Green . Ampt. method. Ponding time . Reading: Applied Hydrology Sections 5.1 to 5.6. depth. Wetting Zone. Transmission. Zone. Transition Zone. Saturation Zone. Wetting Front. q. Infiltration. General. 137. Cs to forest soil. Hikaru. IIDA. 1. ）. ，. Hiroaki KATO. 1. ）. ，. Tomoki SHINOZUKA. 1. ）. ，. Satoru. . AKAIWA. 1. ）. ，. Tatsuya YOKOYAMA. 1. ）. ，. Sean HUDSON. 1. ）. , Janice HUDSON. Dr. Andrew Martin. 1. , Dr. Allison Michaelis. 2. Also Collaborating: Dr. F. Martin Ralph. 2. , Dr. Paul Loikith. 1. . Funded by: USACE FIRO @ Lake Mendocino Project. 1. Department of Geography, Portland State University; . Water entering the soil at the ground surface . It replenishes the soil moisture deficiency and the excess moves downward by force of gravity called deep seepage or percolation and builds up the ground water table .