Determine the contour interval for the map. In this laboratory exercise techniques of map preparation will be presented. Watershed delineation requires the following series of steps:
Solved (A Byhand Watershed Delineation Exercise) Assume
In the table style dialog box, on the data properties tab, clear the sort data check box.
Prepared by ayse kilic and bhavneet soni1.
Within this document, the term nhdplus is used when referring to nhdplus version 2.1 (unless otherwise noted). In this exercise, you will select a stream gage location and use online tools to delineate the watershed draining to the gage. Right click on the layer and select “zoom to layer.” the map should now look like the following. Watershed boundaries on a topographic map.
In this exercise, you will develop a stream basin by selecting a stream gage location (the usgs.
Click annotate tab labels & tables panel add tables menu add surface legend table. • to learn how to use surface hydrologic modeling tools in arcgis. You should review this presentation until you have a good understanding of the process and then test your watershed delineation skills using the two additional topographic maps provided in pages 18 and 19 of this presentation. To use the nhdplus data for watershed delineation and characterization in the archydro tools,.
This exercise teaches dem delineation using the hydrologic modeling
There are several ways to use the nhdplus data to do watershed delineation. Delete everything from your removable drive. In toolspace, on the settings tab, expand the surface table styles watershed collection. 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.
You will perform drainage analysis on a.
If the archydro tools have not yet been installed, see nhdplus exercise 0: Finally, you will delineate a river system watershed. Your job is to draw the drainage divide for the summerson run watershed outlined within the box. First, a simple exercise will review map reading skills.
Start arcgis and open a new map document.
This exercise requires the archydro tools. The process is explained step by step in the next 16 pages. At this point we have all required layers to delineate the watershed region of katraj lake. Figure 3 shows the location along the stream where it should be located.
Refer to the renovo west map on the next page.
Turn “on” and “activate” subbasins. Next contouring exercises will prepare you for the final exercise. See the discussion section at the end of this exercise for more details. The main stream is show in the heavy dark line.
Make sure module executed successfully from the message window.
Watershed delineator” tool creates the required layers and attributes. Perform drive substitution to create the virtual drives. The results from this exercise can be used to create input files for many hydrologic models. 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.
In order to correctly size the reservoir, you must calculate the amount of water that will.
