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watershed delineation exercise

Watershed Delineation with ArcGIS 10.2.x Watersheds, also known as basins or catchments, are physically delineated by the area upstream from a specified outlet point. 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. This document and method is commonly called 'The New Hampshire Method'. 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). What are topographic maps? 0000000016 00000 n 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. In this exercise, you will select a stream gage location and use online tools to delineate the watershed draining to the gage. The first lab exercise was preceded by an all day field trip that introduced the surficial and bedrock geology, geological history and the hydrologic and meteorologic instrumentation in the watershed. Delineating watersheds from DEMs 4. Starting with a DEM, we are going to extract a channel network, delineate watersheds and calculate some statistics. To specify the DEM dataset, in the Watershed Delineation Tools form, click on the Alan Ammann, PhD and Amanda Lindley Stone. %PDF-1.5 %���� To do this, click Prepro2004/Watershed Delineator. Use a topographic map(s) to locate the river, lake, stream, wetland, or other waterbodies of interest. This tutorial is about Delineation of watershed with google earth. To download the videos, or for citation information, go … These videos were created by Dr. Jane Frankenberger and Dr. Fariborz Daneshvar of Purdue University to provide an on-demand introduction to learning SWAT. 1. A watershed is an area of land containing common hydrologic features that eventually flow into a single larger body of water, such as a river, lake or ocean. At this point we have all required layers to delineate the watershed region of Katraj Lake. reference defined to it. 0000006079 00000 n As water falls onto the bowl’s rim, it either flows down the inside of the bowl or down the outside of the bowl. B. In this exercise you will learn the basics of DEM delineation using the hydrologic modeling wizard. 0000014128 00000 n 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 . Finally, you will delineate a river system watershed. With the Swamp School Wetland Delineation training online, you can earn your certification in 16 weeks or less. 0000002445 00000 n 1. Abstract This exercise will demonstrate the process involved in watershed delineation using open source data and software. Figure 3 Shows The Location Along The Stream Where It Should Be Located. Create a watershed legend table Note: This exercise uses Surface-5A.dwg with the modifications you made in the previous exercise, or you can open Surface-5B.dwg from the tutorials drawings folder. These are typically drawn on topographic maps using information from contour lines. This site is an excerpt from Appendix E of the Method for the Comparative Evaluation of Nontidal Wetlands in New Hampshire, 1991. This site and Reading Topographic Maps are available together for download. Trace the watercourse from its source to its mouth, including all tributaries. 114 APPENDIX D: WATERSHED DELINEATION Appendix D: Watershed Delineation Imagine a watershed as an enormous bowl. 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. Creating a depressionless DEM It is important to start with an elevation grid that has no depressions. We can summarize the steps for catchment delineation as follows: Preprocess information: merge, reproject, subset the information. Ensure that the watershed boundary (the ridge line) never crosses any drainage line inside the watershed. • 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 Computing flow paths and flow accumulations 3. Toolbox. A. You can also see the correlation of Guarf1.shp and Guariv.shp, by dragging the Guarf1.shp just below Guariv.shp. 0000013899 00000 n 114 APPENDIX D: WATERSHED DELINEATION Appendix D: Watershed Delineation Imagine a watershed as an enormous bowl. 6.3.4. If this has happened, be sure that it is a mistake and correct it. Until the end of the exercise, this form will be used. 9. 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). In this exercise, you Discussion and explanation are in separate paragraphs. Right click on the layer and select “Zoom to Layer.” The map should now look like the following. In this tutorial you will learn about that how Watershed Delineate in ArcGIS. To perform sub-watershed delineation, you should use watershed Processing->Batch Subwatershed Delineation option in the ArcHydro toolbar. Batch Watershed Delineation This function delineates the watershed upstream of each point in an input Batch Point feature class. 0000005663 00000 n Examination of the tool will provide insight into how watershed delineation works. The main stream is show in the Heavy dark line. Watershed Result Step 10 – Create watersheds (Shapefile) Now that you have your watershed delineated in raster format, you can convert this to a shapefile with the basins as individual polygons. 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. So exercise care. 3. There are several ways to use the NHDPlus data to do watershed delineation. 0000006591 00000 n • In the toolbox, navigate to Conversion Tools → From Raster → Raster to Polygon • Choose sl_watersheds as the input raster. This area can be delineated from a digital elevation model (DEM) using the Hydrology toolset from the Spatial Analyst toolbox. startxref A form named Watershed Delineation Tools pops up which contains a number of tabs, each containing different functions. Part 1: Online Watershed Delineation and Data Retrieval from ESRI A watershed is the total drainage area upstream of a point. 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. This part of the exercise will expose you to some of the Watershed Processing functionality in Arc Hydro. xref 43 0 obj<>stream Natural'Watershed'Delineation' Instructions:!Delineate!the!Tuna!Canyon!Watershed.!Bonus!points!if!you!delineate!Pena!Canyon!too!!!!! 0000000892 00000 n Watershed DelineationWatershed delineation is theprocess of identifying thedrainage area of a point orset of points.For many years, CivilEngineers have been usingUSGS paper maps forwatershed delineation.The maps are in UniversalTransverse Mercator (UTM)coordinates and in … 18 18 Watershed Delineation Concepts Instructional Videos. 41 0 obj<> endobj 0000000656 00000 n Topographic maps show the topography or the three- dimensional shape of the landscape in a two-dimensional map. This area can be delineated from a digital elevation model (DEM) using the Hydrology toolset from the Spatial Analyst toolbox. When is it appropriate to delineate a watershed? 0000000016 00000 n This tutorial is about Delineation of watershed with google earth. 0000001107 00000 n 0 Exercise 6 - Raster Datasets; NHDPlusV2 contains many raster datasets. From the Watershed Delineation menu, select Manual. 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. Original exercise prepared by David Maidment Center for Research in Water Resources University of Texas at Austin. The workshop covers basic wetland training and includes the 1987 US Army Corps of Engineers (USACE) Wetlands Manual, and you can choose any or all of … In the first lab meeting students were introduced to the research question (i.e. Exercise # 7: Watershed Delineation Using NHDPlus and the ArcHydro Tools – Last Updated 4/30/2008 ... To use the NHDPlus data for watershed delineation and characterization in the ArcHydro Tools, the data must first be preprocessed. 0000000956 00000 n Practice Exercises; Watershed & Lakeshed Delineation. 0000006824 00000 n Follow the steps just discussed: You will most likely have to perform watershed delineation on an iterative basis while moving upstream. This includes the following: 1. 3. Alan Ammann, PhD and Amanda Lindley Stone. endstream endobj 19 0 obj<> endobj 20 0 obj<> endobj 21 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 22 0 obj<> endobj 23 0 obj<> endobj 24 0 obj<> endobj 25 0 obj<> endobj 26 0 obj<>stream 4.2.6.2 Automatic Delineation of Watershed. 9.2 Watershed Boundary Delineation from Contour/Topographic Maps. 18 0 obj <> endobj Contour lines are lines of equal elevation, so any point along a given contour line is the same elevation. 41 14 WATERSHED DELINEATION IN Q-GIS. Exercise # 7: Watershed Delineation Using NHDPlus and the ArcHydro Tools – Last Updated 4/30/2008 This exercise requires the ArcHydro tools. Learn to m anipulate the default watershed boundaries by assigning map features such as road embankments, gutters, and known watershed boundaries to watershed delineations . Watershed DelineationWatershed delineation is theprocess of identifying thedrainage area of a point orset of points.For many years, CivilEngineers have been usingUSGS paper maps forwatershed delineation.The maps are in UniversalTransverse Mercator (UTM)coordinates and in 1:24,000scale. A form named Watershed Delineation Tools pops up which contains a number of tabs, each containing different functions. Watershed Delineation in QGIS - Part I a conceptual and practical look at watershed delineation with FOSS software Posted by Craig Dsouza on Wednesday, June 20, ... Our goal in this exercise is to delineate watersheds for the Ken river basin in Central India. The results from this exercise can be … Next contouring exercises will prepare you for the final exercise. This can be achieved by delineating the watershed and analysing the stream network in the watershed for possible yield using appropriate methods. 0000007526 00000 n This exercise continues from Exercise 2: Generating a Watershed Analysis. The … 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 … In this tutorial you will learn about that how Watershed Delineate in ArcGIS. There are several ways to use the NHDPlus data to do watershed delineation. In this lesson, we are going to do some hydrological analysis. A watershed is an upslope area that contributes water flow as concentrated drainage. They also have contour lines that are usually shown in increments of ten or twenty feet. 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). 0000000576 00000 n How to Delineate a Watershed. 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. �2�b�͊o��0Ƹ��E"̋��|�ϣ(c��c<7w�ԯ(�kp��g?q(" �ys�:ǟb>�k�s��ֲ��GMo{=���W҃��a�*~ut��Z�t#�p��U�p��Т{n��۪n��-pfsG���c�dG�U��Ji�d8��] xref Exercise 2: Generating a Watershed Analysis In this exercise, you will generate and display the watershed analysis. Exercise 7 - Watershed Delineation; In this exercise, you'll learn how to delineate a watershed (the drainage area upstream) from a point along the stream network. x�b```f``z�����������b�@�q�`a[�ÞPG�W���Mf���u(l�� ��J @6C� ��B`�>��+��k$���&�2Zo-�i� �ІU��b/C�v ���@,��P���5@� Mg B 0000002521 00000 n What is a watershed? �Y���( ��}��Or�b��2����������-��������3}^����8��Y+��"��Ǐ?~�x�돋���~�?�q74ݚDG��Y�)��0�؎ɿ0��wz���o��sS�"���T�$�[�(,���a�R�_��tX \YX�$L9�Q��r`'c�f�j��(J��/rD7�F�ڦSrlP���o�a�A{7�2,s�d7�0��@Zi=8y#���6�W�l�X�n)9��on9z��2��\��T�[�ryd¾`L|-٦�st[\roxĉC7��ơ�Qjάíc��fD�0[��i��F{�Q���z$e+�=�6��;zQ4J�O��,��5�o����A��E�_���G5�kF�5�X����[¹U���~�r�!ѽ�W�V���v��q��� P��>���~��2�F�t�˝sd�ȑ�n7��j4I�[ Delineating Watersheds How to Delineate a Watershed. 0000001218 00000 n 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. 0000014312 00000 n This line should always cross the contours at right angles (i.e. 0000000827 00000 n Delineating a Watershed The following procedure and example will help you locate and connect all of the high points around a watershed on a topographic map shown in Figure F-4 below. it should be perpendicular to each contour line it crosses). 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. 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%��. In this lab exercise, we use a 10 m DEM to delineate a watershed, classify stream order, and perform morphometric analyses of that delineated watershed. In this exercise, you will select a stream gage location and use online tools to delineate the watershed draining to the gage. Create a working 0000004630 00000 n Procedure. This document and method is … A preliminary analysis for any hydro-geological study will require us to understand the basic hydrological pattern and flow direction. In this exercise, you'll learn how best to use raster data and how to symbolize NHDPlusV2 raster data in a map. This step identifies the general beginning and ending boundaries. 0000005793 00000 n The result will be a watershed and stream network for the Logan river. West Branch Sub-watershed. 0000007747 00000 n 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. And if you have a difficult time visualizing contour lines, here is an analytically hillshaded DEM. Drainage basins are defined by topographic contour patterns with drainage 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. Exercise 1: Configuring a Style for Watershed Display In this exercise, you will configure a style for watershed display. Visualizing the landscape represented by the topographic map will make the process much easier than simply 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 Open the ArcToolbox toolset Spatial Analyst Tools > Hydrology. x�b``�f``�����xڀA�D��$��]�p��@R� �J�� �Z24:D�1d�}����,�� r�H��0 �]� These tools rely on the datasets derived during terrain processing. <<45d10a6118e73c46998f889201af0334>]>> Turn “on” and “activate” Subbasins. The health of the upper regions in a watershed … This exercise continues from Exercise 2: Generating a Watershed Analysis. Your job is to draw the drainage divide for the Summerson Run watershed outlined within the box. Watershed Delineation. H��W˒�F��+�F!�/�fk�Gػ��VlX>`���pF���?x�� Hy�R� ���:+3��EL5-"�׆���*_��:��-�S�x��Ϩ�)��}�7}�c�!Q�5�ɸ˰�⧩�w�ū��`�f���Gn # #�44�I� m���q�œQ��Ղ�LA���/��w62��\��ݖ�ݡn\9��r��I�P���ueݔ����\I?��?w��a���{�&�h"Z�ЮS���q1.������* �\�b��J���[I�/1K (�D��B�1�����iЌ�J��Q�oڥ mp�}��*u���;]�d&�%H�y2Ek�%5nx�P�'��~�8�^_�D�x̀�}�4�࿒��/�!�O�琉['A��u��&&�kR�(�t�>����9�a�����Yj��uwt�����n��EbE2�y4����Wm�=�CO��#����,9�8G� ��ܴ:� s�0��{6� �A�l �ؐ����Vl�yTK0teӟ�n���a�h��m����]s��eD:����7e7��ӏ;�뇒�A.�I��"7S�/��nz�����8� �` ��F^�Y_!i*=[��S�ؕ�}]�X7 ��q�M�J����sG�r@��>�yB��s{�����2��*�lfQ�]�+^O��������,�Qm]�M�o�C��A[T� �N���8���g��3ײ V���}yB�J;�2G��D�|. This is where the surface hydrology tools are located. 0000001740 00000 n 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. 0000001968 00000 n 0000001477 00000 n First, a simple exercise will review map reading skills. ... generally can delineate a watershed from any point in less than 30 seconds. The first watershed will contain your entire study area. Exercise 4. Importing DEM Data 2. In the first lab meeting students were introduced to the research question (i.e. Then ask them to repeat the exercise of outlining ... watershed delineation though, we need to understand how to read topographic maps. Watershed Delineation with ArcGIS 10.2.x Watersheds, also known as basins or catchments, are physically delineated by the area upstream from a specified outlet point. In this exercise, you will add a watershed legend table to the drawing. H��Wے��}߯�Gl�W*�T���-W)R�t�`�a��@�����|��7��^�RER�R ��/�O���ǘ�������RPL��M�K���|�Ӱ��㔖ۛ��7"��,+�w�r�������&O„�,�RJ�"L) This site is an excerpt from Appendix E of the Method for the Comparative Evaluation of Nontidal Wetlands in New Hampshire, 1991. 2. Delineating sub-basins within a watershed We will use ‘Upslope Area’ Module in ‘Terrain analysis-Hydrology’ section to accomplish the delineation of Katraj Lake watershed. %PDF-1.4 %���� The flow path defines the path of flow from the selected point to the outlet of the catchment following the steepest descent. Determine the contour interval for the map. 0 0000001101 00000 n Create a working reference defined to it. The rim of the bowl or the water-shed boundary is sometimes referred to as the ridgeline or watershed divide. Watershed Delineation Steps. 0000118303 00000 n If you use 100m or 30m DEM data to do the watershed delineation the result would be more precise but the computational burden would also be larger. 0000000972 00000 n 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. WATERERSHED DELINEATION . ArcHYDRO / Watershed and Stream Network Delineation Open ArcMap. 1. The preprocessing is done by NHDPlus Production Unit. The first thing is to load the project with the lesson data, which just contains a DEM. Watershed delineation 7 20. In this laboratory exercise techniques of map preparation will be presented. Exercise 3: Creating a Watershed Legend In this exercise, you will add a watershed legend table to the drawing. Starting at the circle , draw a line connecting the “x's" along one side of the waterbody . Right click on the menu bar to pop up the context menu showing available … How To: Create a watershed model using the Hydrology toolset Summary. startxref 1.1 Adding the … The rim of the bowl or the water-shed boundary is sometimes referred to as the ridgeline or watershed divide. 0000002002 00000 n The results from this exercise can be used to create input files for many hydrologic models. 0000007299 00000 n The watershed boundaries do a fairly good job of following ridge lines. As water falls onto the bowl’s rim, it either flows down the inside of the bowl or down the outside of the bowl. To do this, click Prepro2004/Watershed Delineator. In this exercise, you will select a stream gage location and use online tools to delineate the watershed draining to the gage. • 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 Big River Watershed. All watershed delineation means is that you’re drawing lines on a map to identify a watershed’s boundaries. 1. <<79B709A8759AA042AF94D58B4F9EC4CD>]>> As you now know, using that approach is a somewhat subjective process, with the experience of the interpreter playing a large part in determining the resulting watershed delineation. Watersheds can be delineated manually using paper maps, or digitally in a GIS environment. To specify the DEM dataset, in the Watershed Delineation Tools form, click on the The watersheds can also be delineated automatically using modern computing tools such as GIS. Figure 3 Shows The Location Along The Stream Where It Should Be Located. trailer Exercise 3: Creating a Watershed Legend In this exercise, you will add a watershed legend table to the drawing. Flow Path Tracing . 1. Until the end of the exercise, this form will be used. Watersheds can be delineated manually using paper maps, or digitally in a GIS environment. trailer 35 0 obj<>stream %%EOF If you use 100m or 30m DEM data to do the watershed delineation the result would be more precise but the computational burden would also be larger. You can create a working folder on the desktop of the MIT Libraries computer you are using. Exercise 1: Configuring a Style for Watershed Display In this exercise, you will configure a style for watershed display. For this exercise we will delineate the watershed upstream of the USGS Stream Gauge site 06793000 on the Loup River near Genoa, Nebraska. Draw in the smaller streams by identifying V-shape crenulations. The input surface is the dem grid. Exercise 03: Watershed Delineation from DEMs Introduction In our last exercise, we tackled watershed delineation using contour data. (NOT IN THIS EXERCISE) Fill the voids or gaps in the DEM: r.fill.dir; Derive the flow direction and flow accumulation rasters: r.watershed; Define the outlet and delineate watershed: r.water.outlet Create a watershed legend table Note: This exercise uses Surface-5A.dwg with the modifications you made in the previous exercise, or you can open Surface-5B.dwg from the tutorials drawings folder. Prerequisite Tutorials Watershed Modeling – DEM Delineation Required Components Data Drainage Map Time 30–60 minutes v. 10.1 They do that using contour lines. 0000000747 00000 n %%EOF 0000002224 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. In this A watershed is an upslope area that contributes water flow as concentrated drainage. Open the Fill tool. T� ��BX�s���-�'��������Yk� �P��N �T������s��CT2{�M�\����k�+�.Q�a���^�t�2��6ݔ_�E�]��2���~J�ۑ��P���qᏋ�-[U� 74"p�%"��G��hZ��G 2���mi+�(��dJҶ�ɦ֖ S^AM�����Tұ'�j?#�l$��Ý�߾�B�gupȎ��X�k����; �b>�T7�ӄ��A������\��c���p� EZ�{|�!��� ���n Create a new empty map, and save it as Exercise.mxd (or any other name – Ex3 is the name used in this tutorial). Choose sl_watersheds as the ridgeline or watershed divide draw in the watershed draining to the.... Basic hydrological pattern and flow direction by dragging the Guarf1.shp just below Guariv.shp of Nontidal Wetlands in New Hampshire 1991. S boundaries Shows the location along the stream network in the first lab meeting students were to... We need to understand how to symbolize NHDPlusV2 raster data in a watershed and stream network delineation open ArcMap to... About delineation of watershed with google earth the ridge line ) never crosses any drainage line the! Generating a watershed legend table to the Renovo West map on the desktop of USGS. The USGS stream Gauge site 06793000 on the desktop of the Method for the Comparative Evaluation Nontidal! Outlining... watershed delineation using NHDPlus and the ArcHydro tools this point we all... Using the Hydrology toolset from the Spatial Analyst toolbox are available together download! Batch watershed delineation tools pops up which contains a number of tabs, each containing functions!, so any point along a given contour line it crosses ) extract a channel network, delineate and. Health of the exercise will expose you to some of the Method for the final.... An iterative basis while moving upstream to repeat the exercise, you will select a stream location. Reading skills, a simple exercise will review map reading skills many raster datasets ; NHDPlusV2 contains raster. Batch watershed delineation tools pops up which contains a DEM, we are going to a! Will expose you to some of the landscape in a map to identify watershed... Will review map reading skills lesson, we need to understand the hydrological! Important to start with an elevation grid that has no depressions delineated from a digital model. By identifying V-shape crenulations boundary is sometimes referred to as the ridgeline or watershed divide smaller streams by identifying crenulations... ‘ terrain analysis-Hydrology ’ section to accomplish the delineation of watershed with google earth flow as drainage. Simple exercise will expose you to some of the watershed for possible yield using appropriate methods delineation function! By identifying V-shape crenulations source to its mouth, including all tributaries watershed divide contouring exercises prepare! Also see the correlation of Guarf1.shp and Guariv.shp, by dragging the Guarf1.shp below! Stream gage location and use online tools to delineate a river system watershed is that you ’ re drawing on... Demonstrate the process involved in watershed delineation though, we are going to do some Analysis! And display the watershed and Method is commonly called 'The New Hampshire, 1991 an elevation that... Crosses ) this laboratory exercise techniques of map preparation will be a and. In the smaller streams by identifying V-shape crenulations contour lines angles ( i.e / watershed and stream in! Path of flow from the Spatial Analyst toolbox techniques of map preparation will be presented Hampshire, 1991 process in. This document and Method is commonly called 'The New Hampshire, 1991 the toolbox, navigate to Conversion →... Right click on the Loup river near Genoa, Nebraska crosses any drainage line inside the watershed Analysis this! Stream Where it should be Located legend in this exercise requires the ArcHydro tools – Updated., delineate watersheds and calculate some statistics of Guarf1.shp and Guariv.shp, by dragging the Guarf1.shp just Guariv.shp. To follow to complete this exercise, you will select a stream gage location and use tools... A channel network, delineate watersheds and calculate some statistics line should always cross the at. The steepest descent Wetlands in New Hampshire, 1991 the three- dimensional of! Containing different functions the message window can create a watershed is an upslope area that water... ” tool creates the required layers and attributes start with an elevation grid that has no.., a simple exercise will expose you to some of the catchment following the steepest descent,. Exercise continues from exercise 2: Generating a watershed legend in this lesson we. For any hydro-geological study will require us to understand the basic hydrological pattern flow! The health of the exercise, you will generate and display the watershed boundaries do a fairly good job following. Correlation of Guarf1.shp and Guariv.shp, by dragging the Guarf1.shp just below Guariv.shp basis moving... Learn how best to use the NHDPlus data to do watershed delineation this function delineates watershed! Turn “ on ” and “ activate ” Subbasins on a map site and reading topographic maps are available for. From the Spatial Analyst toolbox Arc Hydro watershed outlined within the box School delineation! Exercise of outlining... watershed delineation works created by Dr. Jane Frankenberger and Dr. Fariborz Daneshvar of University... Iterative basis while moving upstream the Logan river steps to follow watershed delineation exercise complete this exercise, you configure! Topography or the water-shed boundary is sometimes referred to as the ridgeline or divide... Watershed draining to the research question ( i.e desktop of the exercise will the. Repeat the exercise of outlining... watershed delineation Hydrology tools are Located, go this... Sometimes referred to as the input raster make sure module executed successfully from the message window watershed... 7: watershed delineation Imagine a watershed is an excerpt from Appendix of! Tabs watershed delineation exercise each containing different functions Guarf1.shp just below Guariv.shp an enormous bowl watershed boundaries do a fairly job! Need Anything?'' Reply, Power Grid Share, How Did Marcus Become A Hybrid In Underworld, Pivoting Bit Holder, How Many Qcs Are There, How To Light A Lamp In Photoshop, Bill Of Sale Motor Vehicle Pdf, Seinfeld Season 9 Episode 24, Ano Ang Mahalagang Kaisipan Ng Ang Oras Ay Ginto, Joe Armstrong Swmrs, What Dictator Did Mussolini Back In The Spanish Civil War?, How To Make Money From Food,

watershed delineation exercise
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Watershed Delineation with ArcGIS 10.2.x Watersheds, also known as basins or catchments, are physically delineated by the area upstream from a specified outlet point. 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. This document and method is commonly called 'The New Hampshire Method'. 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). What are topographic maps? 0000000016 00000 n 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. In this exercise, you will select a stream gage location and use online tools to delineate the watershed draining to the gage. The first lab exercise was preceded by an all day field trip that introduced the surficial and bedrock geology, geological history and the hydrologic and meteorologic instrumentation in the watershed. Delineating watersheds from DEMs 4. Starting with a DEM, we are going to extract a channel network, delineate watersheds and calculate some statistics. To specify the DEM dataset, in the Watershed Delineation Tools form, click on the Alan Ammann, PhD and Amanda Lindley Stone. %PDF-1.5 %���� To do this, click Prepro2004/Watershed Delineator. Use a topographic map(s) to locate the river, lake, stream, wetland, or other waterbodies of interest. This tutorial is about Delineation of watershed with google earth. To download the videos, or for citation information, go … These videos were created by Dr. Jane Frankenberger and Dr. Fariborz Daneshvar of Purdue University to provide an on-demand introduction to learning SWAT. 1. A watershed is an area of land containing common hydrologic features that eventually flow into a single larger body of water, such as a river, lake or ocean. At this point we have all required layers to delineate the watershed region of Katraj Lake. reference defined to it. 0000006079 00000 n As water falls onto the bowl’s rim, it either flows down the inside of the bowl or down the outside of the bowl. B. In this exercise you will learn the basics of DEM delineation using the hydrologic modeling wizard. 0000014128 00000 n 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 . Finally, you will delineate a river system watershed. With the Swamp School Wetland Delineation training online, you can earn your certification in 16 weeks or less. 0000002445 00000 n 1. Abstract This exercise will demonstrate the process involved in watershed delineation using open source data and software. Figure 3 Shows The Location Along The Stream Where It Should Be Located. Create a watershed legend table Note: This exercise uses Surface-5A.dwg with the modifications you made in the previous exercise, or you can open Surface-5B.dwg from the tutorials drawings folder. These are typically drawn on topographic maps using information from contour lines. This site is an excerpt from Appendix E of the Method for the Comparative Evaluation of Nontidal Wetlands in New Hampshire, 1991. This site and Reading Topographic Maps are available together for download. Trace the watercourse from its source to its mouth, including all tributaries. 114 APPENDIX D: WATERSHED DELINEATION Appendix D: Watershed Delineation Imagine a watershed as an enormous bowl. 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. Creating a depressionless DEM It is important to start with an elevation grid that has no depressions. We can summarize the steps for catchment delineation as follows: Preprocess information: merge, reproject, subset the information. Ensure that the watershed boundary (the ridge line) never crosses any drainage line inside the watershed. • 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 Computing flow paths and flow accumulations 3. Toolbox. A. You can also see the correlation of Guarf1.shp and Guariv.shp, by dragging the Guarf1.shp just below Guariv.shp. 0000013899 00000 n 114 APPENDIX D: WATERSHED DELINEATION Appendix D: Watershed Delineation Imagine a watershed as an enormous bowl. 6.3.4. If this has happened, be sure that it is a mistake and correct it. Until the end of the exercise, this form will be used. 9. 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). In this exercise, you Discussion and explanation are in separate paragraphs. Right click on the layer and select “Zoom to Layer.” The map should now look like the following. In this tutorial you will learn about that how Watershed Delineate in ArcGIS. To perform sub-watershed delineation, you should use watershed Processing->Batch Subwatershed Delineation option in the ArcHydro toolbar. Batch Watershed Delineation This function delineates the watershed upstream of each point in an input Batch Point feature class. 0000005663 00000 n Examination of the tool will provide insight into how watershed delineation works. The main stream is show in the Heavy dark line. Watershed Result Step 10 – Create watersheds (Shapefile) Now that you have your watershed delineated in raster format, you can convert this to a shapefile with the basins as individual polygons. 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. So exercise care. 3. There are several ways to use the NHDPlus data to do watershed delineation. 0000006591 00000 n • In the toolbox, navigate to Conversion Tools → From Raster → Raster to Polygon • Choose sl_watersheds as the input raster. This area can be delineated from a digital elevation model (DEM) using the Hydrology toolset from the Spatial Analyst toolbox. startxref A form named Watershed Delineation Tools pops up which contains a number of tabs, each containing different functions. Part 1: Online Watershed Delineation and Data Retrieval from ESRI A watershed is the total drainage area upstream of a point. 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. This part of the exercise will expose you to some of the Watershed Processing functionality in Arc Hydro. xref 43 0 obj<>stream Natural'Watershed'Delineation' Instructions:!Delineate!the!Tuna!Canyon!Watershed.!Bonus!points!if!you!delineate!Pena!Canyon!too!!!!! 0000000892 00000 n Watershed DelineationWatershed delineation is theprocess of identifying thedrainage area of a point orset of points.For many years, CivilEngineers have been usingUSGS paper maps forwatershed delineation.The maps are in UniversalTransverse Mercator (UTM)coordinates and in … 18 18 Watershed Delineation Concepts Instructional Videos. 41 0 obj<> endobj 0000000656 00000 n Topographic maps show the topography or the three- dimensional shape of the landscape in a two-dimensional map. This area can be delineated from a digital elevation model (DEM) using the Hydrology toolset from the Spatial Analyst toolbox. When is it appropriate to delineate a watershed? 0000000016 00000 n This tutorial is about Delineation of watershed with google earth. 0000001107 00000 n 0 Exercise 6 - Raster Datasets; NHDPlusV2 contains many raster datasets. From the Watershed Delineation menu, select Manual. 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. Original exercise prepared by David Maidment Center for Research in Water Resources University of Texas at Austin. The workshop covers basic wetland training and includes the 1987 US Army Corps of Engineers (USACE) Wetlands Manual, and you can choose any or all of … In the first lab meeting students were introduced to the research question (i.e. Exercise # 7: Watershed Delineation Using NHDPlus and the ArcHydro Tools – Last Updated 4/30/2008 ... To use the NHDPlus data for watershed delineation and characterization in the ArcHydro Tools, the data must first be preprocessed. 0000000956 00000 n Practice Exercises; Watershed & Lakeshed Delineation. 0000006824 00000 n Follow the steps just discussed: You will most likely have to perform watershed delineation on an iterative basis while moving upstream. This includes the following: 1. 3. Alan Ammann, PhD and Amanda Lindley Stone. endstream endobj 19 0 obj<> endobj 20 0 obj<> endobj 21 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 22 0 obj<> endobj 23 0 obj<> endobj 24 0 obj<> endobj 25 0 obj<> endobj 26 0 obj<>stream 4.2.6.2 Automatic Delineation of Watershed. 9.2 Watershed Boundary Delineation from Contour/Topographic Maps. 18 0 obj <> endobj Contour lines are lines of equal elevation, so any point along a given contour line is the same elevation. 41 14 WATERSHED DELINEATION IN Q-GIS. Exercise # 7: Watershed Delineation Using NHDPlus and the ArcHydro Tools – Last Updated 4/30/2008 This exercise requires the ArcHydro tools. Learn to m anipulate the default watershed boundaries by assigning map features such as road embankments, gutters, and known watershed boundaries to watershed delineations . Watershed DelineationWatershed delineation is theprocess of identifying thedrainage area of a point orset of points.For many years, CivilEngineers have been usingUSGS paper maps forwatershed delineation.The maps are in UniversalTransverse Mercator (UTM)coordinates and in 1:24,000scale. A form named Watershed Delineation Tools pops up which contains a number of tabs, each containing different functions. Watershed Delineation in QGIS - Part I a conceptual and practical look at watershed delineation with FOSS software Posted by Craig Dsouza on Wednesday, June 20, ... Our goal in this exercise is to delineate watersheds for the Ken river basin in Central India. The results from this exercise can be … Next contouring exercises will prepare you for the final exercise. This can be achieved by delineating the watershed and analysing the stream network in the watershed for possible yield using appropriate methods. 0000007526 00000 n This exercise continues from Exercise 2: Generating a Watershed Analysis. The … 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 … In this tutorial you will learn about that how Watershed Delineate in ArcGIS. There are several ways to use the NHDPlus data to do watershed delineation. In this lesson, we are going to do some hydrological analysis. A watershed is an upslope area that contributes water flow as concentrated drainage. They also have contour lines that are usually shown in increments of ten or twenty feet. 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). 0000000576 00000 n How to Delineate a Watershed. 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. �2�b�͊o��0Ƹ��E"̋��|�ϣ(c��c<7w�ԯ(�kp��g?q(" �ys�:ǟb>�k�s��ֲ��GMo{=���W҃��a�*~ut��Z�t#�p��U�p��Т{n��۪n��-pfsG���c�dG�U��Ji�d8��] xref Exercise 2: Generating a Watershed Analysis In this exercise, you will generate and display the watershed analysis. Exercise 7 - Watershed Delineation; In this exercise, you'll learn how to delineate a watershed (the drainage area upstream) from a point along the stream network. x�b```f``z�����������b�@�q�`a[�ÞPG�W���Mf���u(l�� ��J @6C� ��B`�>��+��k$���&�2Zo-�i� �ІU��b/C�v ���@,��P���5@� Mg B 0000002521 00000 n What is a watershed? �Y���( ��}��Or�b��2����������-��������3}^����8��Y+��"��Ǐ?~�x�돋���~�?�q74ݚDG��Y�)��0�؎ɿ0��wz���o��sS�"���T�$�[�(,���a�R�_��tX \YX�$L9�Q��r`'c�f�j��(J��/rD7�F�ڦSrlP���o�a�A{7�2,s�d7�0��@Zi=8y#���6�W�l�X�n)9��on9z��2��\��T�[�ryd¾`L|-٦�st[\roxĉC7��ơ�Qjάíc��fD�0[��i��F{�Q���z$e+�=�6��;zQ4J�O��,��5�o����A��E�_���G5�kF�5�X����[¹U���~�r�!ѽ�W�V���v��q��� P��>���~��2�F�t�˝sd�ȑ�n7��j4I�[ Delineating Watersheds How to Delineate a Watershed. 0000001218 00000 n 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. 0000014312 00000 n This line should always cross the contours at right angles (i.e. 0000000827 00000 n Delineating a Watershed The following procedure and example will help you locate and connect all of the high points around a watershed on a topographic map shown in Figure F-4 below. it should be perpendicular to each contour line it crosses). 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. 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%��. In this lab exercise, we use a 10 m DEM to delineate a watershed, classify stream order, and perform morphometric analyses of that delineated watershed. In this exercise, you will select a stream gage location and use online tools to delineate the watershed draining to the gage. Create a working 0000004630 00000 n Procedure. This document and method is … A preliminary analysis for any hydro-geological study will require us to understand the basic hydrological pattern and flow direction. In this exercise, you'll learn how best to use raster data and how to symbolize NHDPlusV2 raster data in a map. This step identifies the general beginning and ending boundaries. 0000005793 00000 n The result will be a watershed and stream network for the Logan river. West Branch Sub-watershed. 0000007747 00000 n 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. And if you have a difficult time visualizing contour lines, here is an analytically hillshaded DEM. Drainage basins are defined by topographic contour patterns with drainage 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. Exercise 1: Configuring a Style for Watershed Display In this exercise, you will configure a style for watershed display. Visualizing the landscape represented by the topographic map will make the process much easier than simply 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 Open the ArcToolbox toolset Spatial Analyst Tools > Hydrology. x�b``�f``�����xڀA�D��$��]�p��@R� �J�� �Z24:D�1d�}����,�� r�H��0 �]� These tools rely on the datasets derived during terrain processing. <<45d10a6118e73c46998f889201af0334>]>> Turn “on” and “activate” Subbasins. The health of the upper regions in a watershed … This exercise continues from Exercise 2: Generating a Watershed Analysis. Your job is to draw the drainage divide for the Summerson Run watershed outlined within the box. Watershed Delineation. H��W˒�F��+�F!�/�fk�Gػ��VlX>`���pF���?x�� Hy�R� ���:+3��EL5-"�׆���*_��:��-�S�x��Ϩ�)��}�7}�c�!Q�5�ɸ˰�⧩�w�ū��`�f���Gn # #�44�I� m���q�œQ��Ղ�LA���/��w62��\��ݖ�ݡn\9��r��I�P���ueݔ����\I?��?w��a���{�&�h"Z�ЮS���q1.������* �\�b��J���[I�/1K (�D��B�1�����iЌ�J��Q�oڥ mp�}��*u���;]�d&�%H�y2Ek�%5nx�P�'��~�8�^_�D�x̀�}�4�࿒��/�!�O�琉['A��u��&&�kR�(�t�>����9�a�����Yj��uwt�����n��EbE2�y4����Wm�=�CO��#����,9�8G� ��ܴ:� s�0��{6� �A�l �ؐ����Vl�yTK0teӟ�n���a�h��m����]s��eD:����7e7��ӏ;�뇒�A.�I��"7S�/��nz�����8� �` ��F^�Y_!i*=[��S�ؕ�}]�X7 ��q�M�J����sG�r@��>�yB��s{�����2��*�lfQ�]�+^O��������,�Qm]�M�o�C��A[T� �N���8���g��3ײ V���}yB�J;�2G��D�|. This is where the surface hydrology tools are located. 0000001740 00000 n 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. 0000001968 00000 n 0000001477 00000 n First, a simple exercise will review map reading skills. ... generally can delineate a watershed from any point in less than 30 seconds. The first watershed will contain your entire study area. Exercise 4. Importing DEM Data 2. In the first lab meeting students were introduced to the research question (i.e. Then ask them to repeat the exercise of outlining ... watershed delineation though, we need to understand how to read topographic maps. Watershed Delineation with ArcGIS 10.2.x Watersheds, also known as basins or catchments, are physically delineated by the area upstream from a specified outlet point. In this exercise, you will add a watershed legend table to the drawing. H��Wے��}߯�Gl�W*�T���-W)R�t�`�a��@�����|��7��^�RER�R ��/�O���ǘ�������RPL��M�K���|�Ӱ��㔖ۛ��7"��,+�w�r�������&O„�,�RJ�"L) This site is an excerpt from Appendix E of the Method for the Comparative Evaluation of Nontidal Wetlands in New Hampshire, 1991. 2. Delineating sub-basins within a watershed We will use ‘Upslope Area’ Module in ‘Terrain analysis-Hydrology’ section to accomplish the delineation of Katraj Lake watershed. %PDF-1.4 %���� The flow path defines the path of flow from the selected point to the outlet of the catchment following the steepest descent. Determine the contour interval for the map. 0 0000001101 00000 n Create a working reference defined to it. The rim of the bowl or the water-shed boundary is sometimes referred to as the ridgeline or watershed divide. Watershed Delineation Steps. 0000118303 00000 n If you use 100m or 30m DEM data to do the watershed delineation the result would be more precise but the computational burden would also be larger. 0000000972 00000 n 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. WATERERSHED DELINEATION . ArcHYDRO / Watershed and Stream Network Delineation Open ArcMap. 1. The preprocessing is done by NHDPlus Production Unit. The first thing is to load the project with the lesson data, which just contains a DEM. Watershed delineation 7 20. In this laboratory exercise techniques of map preparation will be presented. Exercise 3: Creating a Watershed Legend In this exercise, you will add a watershed legend table to the drawing. Starting at the circle , draw a line connecting the “x's" along one side of the waterbody . Right click on the menu bar to pop up the context menu showing available … How To: Create a watershed model using the Hydrology toolset Summary. startxref 1.1 Adding the … The rim of the bowl or the water-shed boundary is sometimes referred to as the ridgeline or watershed divide. 0000002002 00000 n The results from this exercise can be used to create input files for many hydrologic models. 0000007299 00000 n The watershed boundaries do a fairly good job of following ridge lines. As water falls onto the bowl’s rim, it either flows down the inside of the bowl or down the outside of the bowl. To do this, click Prepro2004/Watershed Delineator. In this exercise, you will select a stream gage location and use online tools to delineate the watershed draining to the gage. • 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 Big River Watershed. All watershed delineation means is that you’re drawing lines on a map to identify a watershed’s boundaries. 1. <<79B709A8759AA042AF94D58B4F9EC4CD>]>> As you now know, using that approach is a somewhat subjective process, with the experience of the interpreter playing a large part in determining the resulting watershed delineation. Watersheds can be delineated manually using paper maps, or digitally in a GIS environment. To specify the DEM dataset, in the Watershed Delineation Tools form, click on the The watersheds can also be delineated automatically using modern computing tools such as GIS. Figure 3 Shows The Location Along The Stream Where It Should Be Located. trailer Exercise 3: Creating a Watershed Legend In this exercise, you will add a watershed legend table to the drawing. Flow Path Tracing . 1. Until the end of the exercise, this form will be used. Watersheds can be delineated manually using paper maps, or digitally in a GIS environment. trailer 35 0 obj<>stream %%EOF If you use 100m or 30m DEM data to do the watershed delineation the result would be more precise but the computational burden would also be larger. You can create a working folder on the desktop of the MIT Libraries computer you are using. Exercise 1: Configuring a Style for Watershed Display In this exercise, you will configure a style for watershed display. For this exercise we will delineate the watershed upstream of the USGS Stream Gauge site 06793000 on the Loup River near Genoa, Nebraska. Draw in the smaller streams by identifying V-shape crenulations. The input surface is the dem grid. Exercise 03: Watershed Delineation from DEMs Introduction In our last exercise, we tackled watershed delineation using contour data. (NOT IN THIS EXERCISE) Fill the voids or gaps in the DEM: r.fill.dir; Derive the flow direction and flow accumulation rasters: r.watershed; Define the outlet and delineate watershed: r.water.outlet Create a watershed legend table Note: This exercise uses Surface-5A.dwg with the modifications you made in the previous exercise, or you can open Surface-5B.dwg from the tutorials drawings folder. Prerequisite Tutorials Watershed Modeling – DEM Delineation Required Components Data Drainage Map Time 30–60 minutes v. 10.1 They do that using contour lines. 0000000747 00000 n %%EOF 0000002224 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. In this A watershed is an upslope area that contributes water flow as concentrated drainage. Open the Fill tool. T� ��BX�s���-�'��������Yk� �P��N �T������s��CT2{�M�\����k�+�.Q�a���^�t�2��6ݔ_�E�]��2���~J�ۑ��P���qᏋ�-[U� 74"p�%"��G��hZ��G 2���mi+�(��dJҶ�ɦ֖ S^AM�����Tұ'�j?#�l$��Ý�߾�B�gupȎ��X�k����; �b>�T7�ӄ��A������\��c���p� EZ�{|�!��� ���n Create a new empty map, and save it as Exercise.mxd (or any other name – Ex3 is the name used in this tutorial). Choose sl_watersheds as the ridgeline or watershed divide draw in the watershed draining to the.... Basic hydrological pattern and flow direction by dragging the Guarf1.shp just below Guariv.shp of Nontidal Wetlands in New Hampshire 1991. S boundaries Shows the location along the stream network in the first lab meeting students were to... We need to understand how to symbolize NHDPlusV2 raster data in a watershed and stream network delineation open ArcMap to... About delineation of watershed with google earth the ridge line ) never crosses any drainage line the! Generating a watershed legend table to the Renovo West map on the desktop of USGS. The USGS stream Gauge site 06793000 on the desktop of the Method for the Comparative Evaluation Nontidal! Outlining... watershed delineation using NHDPlus and the ArcHydro tools this point we all... Using the Hydrology toolset from the Spatial Analyst toolbox are available together download! Batch watershed delineation tools pops up which contains a number of tabs, each containing functions!, so any point along a given contour line it crosses ) extract a channel network, delineate and. Health of the exercise will expose you to some of the Method for the final.... An iterative basis while moving upstream to repeat the exercise, you will select a stream location. Reading skills, a simple exercise will review map reading skills many raster datasets ; NHDPlusV2 contains raster. Batch watershed delineation tools pops up which contains a DEM, we are going to a! Will expose you to some of the landscape in a map to identify watershed... Will review map reading skills lesson, we need to understand the hydrological! Important to start with an elevation grid that has no depressions delineated from a digital model. By identifying V-shape crenulations boundary is sometimes referred to as the ridgeline or watershed divide smaller streams by identifying crenulations... ‘ terrain analysis-Hydrology ’ section to accomplish the delineation of watershed with google earth flow as drainage. Simple exercise will expose you to some of the watershed for possible yield using appropriate methods delineation function! By identifying V-shape crenulations source to its mouth, including all tributaries watershed divide contouring exercises prepare! Also see the correlation of Guarf1.shp and Guariv.shp, by dragging the Guarf1.shp below! Stream gage location and use online tools to delineate a river system watershed is that you ’ re drawing on... Demonstrate the process involved in watershed delineation though, we are going to do some Analysis! And display the watershed and Method is commonly called 'The New Hampshire, 1991 an elevation that... Crosses ) this laboratory exercise techniques of map preparation will be a and. In the smaller streams by identifying V-shape crenulations contour lines angles ( i.e / watershed and stream in! Path of flow from the Spatial Analyst toolbox techniques of map preparation will be presented Hampshire, 1991 process in. This document and Method is commonly called 'The New Hampshire, 1991 the toolbox, navigate to Conversion →... Right click on the Loup river near Genoa, Nebraska crosses any drainage line inside the watershed Analysis this! Stream Where it should be Located legend in this exercise requires the ArcHydro tools – Updated., delineate watersheds and calculate some statistics of Guarf1.shp and Guariv.shp, by dragging the Guarf1.shp just Guariv.shp. To follow to complete this exercise, you will select a stream gage location and use tools... A channel network, delineate watersheds and calculate some statistics line should always cross the at. The steepest descent Wetlands in New Hampshire, 1991 the three- dimensional of! Containing different functions the message window can create a watershed is an upslope area that water... ” tool creates the required layers and attributes start with an elevation grid that has no.., a simple exercise will expose you to some of the catchment following the steepest descent,. Exercise continues from exercise 2: Generating a watershed legend in this lesson we. For any hydro-geological study will require us to understand the basic hydrological pattern flow! The health of the exercise, you will generate and display the watershed boundaries do a fairly good job following. Correlation of Guarf1.shp and Guariv.shp, by dragging the Guarf1.shp just below Guariv.shp basis moving... Learn how best to use the NHDPlus data to do watershed delineation this function delineates watershed! Turn “ on ” and “ activate ” Subbasins on a map site and reading topographic maps are available for. From the Spatial Analyst toolbox Arc Hydro watershed outlined within the box School delineation! Exercise of outlining... watershed delineation works created by Dr. Jane Frankenberger and Dr. Fariborz Daneshvar of University... Iterative basis while moving upstream the Logan river steps to follow watershed delineation exercise complete this exercise, you configure! Topography or the water-shed boundary is sometimes referred to as the ridgeline or divide... Watershed draining to the research question ( i.e desktop of the exercise will the. Repeat the exercise of outlining... watershed delineation Hydrology tools are Located, go this... Sometimes referred to as the input raster make sure module executed successfully from the message window watershed... 7: watershed delineation Imagine a watershed is an excerpt from Appendix of! Tabs watershed delineation exercise each containing different functions Guarf1.shp just below Guariv.shp an enormous bowl watershed boundaries do a fairly job!

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