Basic Hydrology

Creating hydrologic models of small watersheds for conservation bmps, leveraging the power of GIS.
Rating: 4.2 out of 5 (1,062 ratings)
13,675 students
Basic Hydrology
Rating: 4.2 out of 5 (1,062 ratings)
13,676 students
Compute peak runoff rates for rural watersheds
Compute peak runoff rates for urban watersheds
Delineate watersheds using maps and ground truthing
Understand the differences between the 3 most widely used hydrology models

Requirements

  • Need to be able to download and install NRCS software
  • Need to be able to download and install the HydroCAD Sampler
  • Have either ArcGIS Desktop Advanced with Spatial Analyst Extension, or the open source QGIS
Description

This course teaches soil and water district technicians and junior engineers how to model small watersheds for conservation and stormwater management structures. Three hydrological models are presented: EFH2, TR-20/TR-55, and the rational method. The course includes a blend of GIS and by-hand analysis methods. For the GIS portions, parallel workflows are presented for ArcGIS (Spatial Analyst extension), and for QGIS. The EFH2 software is presented for rural hydrology while HydroCAD (Free Sampler edition) is used for urban projects. The course culminates in two design examples to allow students to implement what they've learned.

Who this course is for:
  • Soil and Water District technicians with 0-2 years of experience
  • Entry level engineers working in transportation, civil/site, and agricultural disciplines
Course content
6 sections • 20 lectures • 2h 28m total length
  • Introduction
    12:34
  • Drainage Area Mapping
    07:00
  • Drainage Areas in ArcMap
    07:26
  • Drainage Areas in QGIS
    04:06
  • Getting Lidar in New York State
    04:04
  • Lidar Contours in ArcMap
    05:13
  • Lidar Contours in QGIS
    03:38
  • Curve Numbers (CN values)
    06:48
  • Soil Data Viewer
    12:04
  • Curve Number Mapping in ArcMap
    11:07
  • Curve Number Mapping in QGIS
    13:23
  • Time of Concentration (Rural)
    05:01
  • Rural Tc in ArcMap
    08:07
  • Rural TC in QGIS
    08:16
  • Time of Concentration (Urban)
    08:59
  • EFH2
    08:09
  • HydroCAD
    12:11
  • HydroCAD using the Rational Method
    07:20
  • Rural Hydrology for a laneway culvert (With ArcGIS)
    01:26
  • Urban Hydrology (With QGIS)
    01:22

Instructor
Conservation Planning, Design & Implementation across NY!
Tim Clark
  • 4.3 Instructor Rating
  • 1,682 Reviews
  • 24,367 Students
  • 5 Courses

Tim is a NY State Registered Professional Engineer with a diverse background in agricultural conservation, civil/site design, railway design, aviation design, and highway design. He is currently the State Engineer for the New York State Soil and Water Conservation Committee housed at the NY State Department of Agriculture and Markets, where he is dedicated to improving the planning, design, and construction of conservation practices across New York State.