Topic outline

  • Using GIS for Hydrologic Analysis

    Credits : 2 PDH

    Course Description:

    The function of a GIS in hydrologic modeling is to improve the efficiency and/or quality by reducing the labor intensity of the map manipulations, table look-ups, and repetitious computations required to define input parameters; enable data collection and analysis within variable geographic constructs; and produce more meaningful data outputs in terms of maps, tables, and reports.

    Topics:

    • Overview of GIS
    • Manual Approach to Input Parameter Generation
    • Minimum information requirements to run an SCS model
    • Characteristics of Land Cover in Area of Interest
    • SCS Hydrologic Soil Groups
    • GIS Requirements for the Modeling of a Complex Watershed
    • Distribution of subwatersheds and network representation of a complex river basin
    • GIS Implementation Issues
    • Storage and Resolution
    • Example of a detailed land cover distribution required for the modeling of a very small watershed
    • Sources of Digital Format Geographic Data
    • Digitizing Paper Format Data Sources

    To take this course:

    1.) Enroll in Course: Click below to enroll:
    (must be logged into your user account)


    2.) Study: Once enrolled, click below to begin the course:

    Download the Study Guide

    3.) Test: Once you've thoroughly read the course materials, please click below to take the final examination.

    Take the final exam

    4.) Certificate: A passing grade of 70% or higher on the exam, is required to receive the certificate of completion for this PDH course.
         NOTE: After the exam is completed, you will need to return to this page, in order to print (download) the certificate of completion.

    Print the Certificate of Completion

    Intended Audience: primarily for civil, construction, and hydraulic engineers.
    Publication Source: US Geological Survey

    Donald Parnell, PE

    • Topic 1