1. Watershed Modeling – Advanced DEM Delineation Techniques Learn how to model manmade and natural drainage features such as road embankments, depressions, and gutters Objectives Manipulate the default watershed boundaries by assigning map features such as road embankments, gutters, and known watershed boundaries to watershed delineations . 0000002002 00000 n Prerequisite Tutorials Watershed Modeling – DEM Delineation Required Components Data Drainage Map Time 30–60 minutes v. 10.1 • Delineation is part of the process known as watershed segmentation, i.e., dividing the watershed into discrete land and channel segments to analyze watershed behavior If this has happened, be sure that it is a mistake and correct it. 3. Natural'Watershed'Delineation' Instructions:!Delineate!the!Tuna!Canyon!Watershed.!Bonus!points!if!you!delineate!Pena!Canyon!too!!!!! The first watershed will contain your entire study area. How to Delineate a Watershed. Practice Exercises; Watershed & Lakeshed Delineation. In this exercise, you will select a stream gage location and use online tools to delineate the watershed draining to the gage. In this tutorial you will learn about that how Watershed Delineate in ArcGIS. This site and Reading Topographic Maps are available together for download. To perform sub-watershed delineation, you should use watershed Processing->Batch Subwatershed Delineation option in the ArcHydro toolbar. A watershed is an upslope area that contributes water flow as concentrated drainage. Watersheds can be delineated manually using paper maps, or digitally in a GIS environment. Ensure that the watershed boundary (the ridge line) never crosses any drainage line inside the watershed. They do that using contour lines. The main stream is show in the Heavy dark line. <<45d10a6118e73c46998f889201af0334>]>> Topographic maps; for example, have a scale of 1:24,000 (which means that one inch measured on the map represents 24,000 inches (2000 feet) on the ground). Watershed and Stream Network Delineation GIS in Water Resources, Fall 2012 Prepared by David Tarboton, Utah State University Purpose The purpose of this exercise is to illustrate watershed and stream network delineation based on digital elevation models using the Hydrology tools in the ArcGIS Geoprocessing toolbox. Geographical Information System (GIS) is an effective tool to perform many operations such as digitization, delineation of streams of a watershed and carry out a variety of spatial analysis. 0000013899 00000 n In this exercise, we will use Arc Hydro tools to process a DEM to delineate watershed, sub-watersheds, stream network and some other watershed characteristics that collectively describe the drainage patterns of a basin. The purpose of this exercise is to illustrate watershed and stream network delineation based on digital elevation models using the Hydrology tools in ArcGIS and online services for Hydrology and Hydrologic data. Using the same 10 m digital elevation model (DEM) that we used in Lab 06, the Big Cottonwood Creek watershed was delineated from this raster. This area can be delineated from a digital elevation model (DEM) using the Hydrology toolset from the Spatial Analyst toolbox. Alan Ammann, PhD and Amanda Lindley Stone. This is where the surface hydrology tools are located. The results from this exercise can be used to create input files for many hydrologic models. 0000000972 00000 n Exercise 7 – Watershed Delineation Using ArcGIS Spatial Analyst – Last Updated 4/6/2017 Within this document, the term NHDPlus is used when referring to NHDPlus Version 2.1 (unless otherwise noted). xref Trace the watercourse from its source to its mouth, including all tributaries. Exercise # 7: Watershed Delineation Using NHDPlus and the ArcHydro Tools – Last Updated 4/30/2008 This exercise requires the ArcHydro tools. Visualizing the landscape represented by the topographic map will make the process much easier than simply The purpose of this exercise is to illustrate watershed and stream network delineation based on digital elevation models using the Hydrology tools in ArcGIS and online services for Hydrology and Hydrologic data. Follow the steps just discussed: The results from this exercise can be … 18 18 Original exercise prepared by David Maidment Center for Research in Water Resources University of Texas at Austin. Big River Watershed. 0000001218 00000 n Until the end of the exercise, this form will be used. In this exercise, you will add a watershed legend table to the drawing. These videos were created by Dr. Jane Frankenberger and Dr. Fariborz Daneshvar of Purdue University to provide an on-demand introduction to learning SWAT. With the Swamp School Wetland Delineation training online, you can earn your certification in 16 weeks or less. Turn “on” and “activate” Subbasins. Exercise 3: Creating a Watershed Legend In this exercise, you will add a watershed legend table to the drawing. 9. As water falls onto the bowl’s rim, it either flows down the inside of the bowl or down the outside of the bowl. In this exercise, you'll learn how best to use raster data and how to symbolize NHDPlusV2 raster data in a map. The … 0000001740 00000 n The first thing is to load the project with the lesson data, which just contains a DEM. In this lesson, we are going to do some hydrological analysis. To do this, click Prepro2004/Watershed Delineator. This exercise continues from Exercise 2: Generating a Watershed Analysis. Create a new empty map, and save it as Exercise.mxd (or any other name – Ex3 is the name used in this tutorial). First, a simple exercise will review map reading skills. As water falls onto the bowl’s rim, it either flows down the inside of the bowl or down the outside of the bowl. At this point we have all required layers to delineate the watershed region of Katraj Lake. Your job is to draw the drainage divide for the Summerson Run watershed outlined within the box. Use a topographic map(s) to locate the river, lake, stream, wetland, or other waterbodies of interest. 1��(q��e�&i=4u�Ut� !�a�����I��P�z�}��S�JvS�H4=�Z�%a*j�>Q��Vۖ�M��8�u��3� �rgT�TլD7Y�'i�Qx���wS���I|�>o��i�����/��Z�mۿh�x�C��z�͠,� zTjɁ1�>]�W�W3��Gi%��. Delineating watersheds from DEMs 4. 0000005793 00000 n Creating a depressionless DEM It is important to start with an elevation grid that has no depressions. Watershed Delineation Steps. HSPF modeling and for BASINS watershed characterization reports • So we can characterize and investigate what is going on in one portion of the study area versus another. Urban Watershed Delineation Instructions: Delineate the Compton Creek Watershed (Creek shown in red, LA River in blue) Topanga 2012 File Edit View Window Help 7900 1600 1100 1300 1300 22.75 in Dix … What is a watershed? To download the videos, or for citation information, go … Stream Network and Watershed Delineation using Spatial Analyst Hydrology Tools Prepared by Venkatesh Merwade School of Civil Engineering, Purdue University vmerwade@purdue.edu January 2019 Objective The purpose of this exercise to learn how to delineate stream network and watersheds 43 0 obj<>stream x�b```f``z�����������b�@�q�`a[�ÞPG�W���Mf���u(l�� ��J @6C� ��B`�>��+��k$���&�2Zo-�i� �ІU��b/C�v ���@,��P���5@� Mg B 21. Exercise 03: Watershed Delineation from DEMs Introduction In our last exercise, we tackled watershed delineation using contour data. 0000001477 00000 n IAP2014 Watershed Delineation January, 2014 Anne Graham and Daniel Sheehan 1 Hydrology tools in ArcGIS Before you begin, think about where you will be storing all the GIS files that you will be downloading and creating in this exercise. Question: (A By-hand Watershed Delineation Exercise) Assume That Your Firm Is Building An Open Reservoir Type Rainwater Harvesting System Next To Route 322 In Worth Township, Centre County Along Laurel Run. You can create a working folder on the desktop of the MIT Libraries computer you are using. it should be perpendicular to each contour line it crosses). endstream endobj 42 0 obj<> endobj 44 0 obj<> endobj 45 0 obj<>/Font<>/XObject<>/ProcSet[/PDF/Text/ImageC]/ExtGState<>>> endobj 46 0 obj<> endobj 47 0 obj<> endobj 48 0 obj[/ICCBased 50 0 R] endobj 49 0 obj<>stream In this exercise you will learn the basics of DEM delineation using the hydrologic modeling wizard. Flow Path Tracing . The purpose of this exercise is to illustrate watershed and stream network delineation based on digital elevation models using the Hydrology tools in ArcGIS and online services for Hydrology and Hydrologic data. 9.2 Watershed Boundary Delineation from Contour/Topographic Maps. ArcHYDRO / Watershed and Stream Network Delineation Open ArcMap. Exercise 2: Generating a Watershed Analysis In this exercise, you will generate and display the watershed analysis. 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