PDF-PRIMARY USEADDITIONAL USES:Enhance infiltration and to control runoff.

Limitations NRCS Field Office T echnical Guide TerracingPerspective View. EROSION. Detachment – particle/aggregate loosened from surface. Entrainment – initiation of motion by flow. TRANSPORT. Rill – concentrated overland flow. Inter-rill (. sheetwash. ) – diffuse overland flow. Reading: . Haested. Section 2.4 Computing Hydrographs. Excess . Rainfall and Direct Runoff . Rainfall that is neither retained on the land surface nor infiltrated into the soil. Graph of excess rainfall versus time is called excess rainfall hyetograph. Reading: Applied Hydrology Sections 5.6 to 5.8 and Chapter 6 for Tuesday of next week. Runoff. Streamflow. Generation. Excess Rainfall and Direct Runoff. SCS Method for runoff amount. Examples from Brushy Creek. Open Book. . Answer all questions. Please answer on separate sheets of paper. You may refer to the textbook, notes, solutions to . homeworks. and any other written or printed reference material that you have brought with you. . 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. (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.. Baseflow. Separation. Phi-Index. Determining the .  index and Excess Rainfall Hyetograph. Direct Runoff from . the SCS Curve Number Equation. Midterm Format. Open Book. . Answer all questions. Please answer on separate sheets of paper. You may refer to the textbook, notes, solutions to . 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. Slope. Degree of saturation. Porosity. Permeability. Capillarity. Vegetation. Land use. What factors affect the movement of water?. Slope . is how steep the land is.. The steeper the slope of the land, . Quantifies . reductions in . phosphorus (P) and TSS runoff for . a given BMP or group of . BMPs. Can be used to determine best BMP(s) for a particular situation. Why do we need to know these?. Meet regulatory requirements. 2.8.1 The coefficient of storage of a confined aquifer is found to be 6.8 x 10. -4. as a result of a pumping test. The thickness of the aquifer is 50 m and the porosity is 0.25. Determine the fractions of the expansibility of water and compressibility of the aquifer skeleton in making up the storage coefficient of the aquifer. Runoff. Streamflow. Generation. Excess Rainfall and Direct Runoff. SCS Method for runoff amount. Examples from Brushy Creek. Reading for today: Applied Hydrology sections 5.1 to 5.6. Reading for Tuesday Feb 19: Applied Hydrology Sections 5.7 and 5.8, Chapter 6. Erosion, & Deposition. THINK ABOUT IT:. What . processes shape Earth’s surface?. Key Concepts to Know:. RECALL:. The . hydrologic (water) cycle. The processes of runoff, infiltration and . capillarity.