Arc Hydro Tools - Tutorial Version 2.0 – October 2011 ESRI 380 New York St., Redlands, CA 92373-8100, USA TEL 909-793-2853 FAX 909-793-5953 E-MAIL [email protected] WEB www.esri.com Arc Hydro Tools v2.0 – Tutorial Copyright © 2011 ESRI All rights reserved. Printed in the United States of America. The information contained in this document is the exclusive property of ESRI. This work is protected under United States copyright law and other international copyright treaties and conventions. No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or by any information storage or retrieval system, except as expressly permitted in writing by ESRI. All requests should be sent to Attention: Contracts Manager, ESRI, 380 New York Street, Redlands, CA 92373-8100, USA. The information contained in this document is subject to change without notice. October 2011 i Arc Hydro Tools v2.0 – Tutorial Table of Contents Introduction...................................................................................................................................... 1 Objective .......................................................................................................................................... 1 Getting Started ................................................................................................................................. 1 Software Requirements ............................................................................................................... 1 Setting up the Arc Hydro Tools .................................................................................................. 4 Installing Arc Hydro and the Water Utilities Application Framework ....................................... 4 Loading the Arc Hydro tools in ArcMap .................................................................................... 8 Setting Default Vector Target Location Type ........................................................................... 10 Default temporary workspace used by the tools ........................................................................ 12 Dataset Setup ............................................................................................................................. 12 Important Considerations before starting a new Arc Hydro Project ......................................... 12 Tutorial Data.............................................................................................................................. 13 Terrain Preprocessing .................................................................................................................... 16 DEM Manipulation .................................................................................................................... 17 1. Level DEM ....................................................................................................................... 17 2. DEM Reconditioning ....................................................................................................... 19 3. Assign Stream Slope ........................................................................................................ 20 4. Burn Stream Slope ........................................................................................................... 22 5. Build Walls ...................................................................................................................... 23 6. Sink Prescreening ............................................................................................................. 25 7. Sink Evaluation ................................................................................................................ 26 8. Depression Evaluation ..................................................................................................... 28 9. Sink Selection ................................................................................................................... 30 10. Fill Sinks ........................................................................................................................ 32 Terrain Processing ..................................................................................................................... 34 1. Flow Direction ................................................................................................................. 34 2. Flow Direction with Sinks ............................................................................................... 35 3. Adjust Flow Direction in Lakes ....................................................................................... 36 4. Flow Accumulation .......................................................................................................... 37 5. Stream Definition ............................................................................................................. 38 6. Stream Segmentation ....................................................................................................... 39 7. Flow Direction with Streams ........................................................................................... 39 8. Combine Stream Link and Sink Link ............................................................................... 42 9. Catchment Grid Delineation ............................................................................................ 44 10. Catchment Polygon Processing ....................................................................................... 44 11. Drainage Line Processing ............................................................................................... 45 12. Adjoint Catchment Processing ....................................................................................... 47 13. Drainage Point Processing ............................................................................................. 49 14. Longest Flow Path for Catchments ................................................................................ 51 15. Longest Flow Path for Adjoint Catchments ................................................................... 52 Other Functions ......................................................................................................................... 53 1. Slope ................................................................................................................................ 53 Watershed Processing .................................................................................................................... 54 Delineation Functions ................................................................................................................ 54 1. Batch Watershed Delineation ........................................................................................... 54 2. Batch Subwatershed Delineation ..................................................................................... 59 3. Batch Global Watershed Delineation ............................................................................... 61 October 2011 ii Arc Hydro Tools v2.0 – Tutorial 4. Batch Watershed Delineation for Polygons ..................................................................... 61 5. Delineate from Multiple Inlets and Outlets ...................................................................... 65 Watershed Characterization Functions ...................................................................................... 69 1. Drainage Area Centroid ................................................................................................... 69 2. Longest Flow Path ........................................................................................................... 70 3. Longest Flow Path for Watersheds .................................................................................. 72 4. Longest Flow Path for Subwatersheds ............................................................................. 73 5. Main Flow Path ................................................................................................................ 74 6. Construct 3D Line ............................................................................................................ 78 7. Smooth 3D Line ............................................................................................................... 79 8. Flow Path Parameters from 2D Line ................................................................................ 81 9. Flow Path Parameters from 3D Line ................................................................................ 82 10. Basin Length Points ....................................................................................................... 83 11. Basin Length .................................................................................................................. 84 Network Tools ............................................................................................................................... 87 1. Hydro Network Generation .............................................................................................. 87 2. Node/Link Schema Generation ........................................................................................ 90 3. Store Flow Direction ........................................................................................................ 92 4. Set Flow Direction ..........................................................................................................