Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Design Example: Design of an Irrigation Channel01:27

Design Example: Design of an Irrigation Channel

280
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
280
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

142
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
142
Rapidly Varying Flow01:24

Rapidly Varying Flow

164
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
164
Gradually Varying Flow01:29

Gradually Varying Flow

148
Gradually varying flow (GVF) in open channels describes situations where water depth changes slowly along the channel due to factors like non-uniform bed slope, channel shape variations, or obstructions. This flow type occurs when the depth adjusts gradually to balance gravitational forces, shear forces, and energy requirements, resulting in a low rate of depth change.Characteristics of Gradually Varying FlowGVF is commonly observed in natural streams, rivers, and canals, where flow depth...
148
Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

Design Example: Creating a Hydraulic Model of a Dam Spillway

368
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
368

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Linking wetlands to relatively permanent flowing waters: a conterminous United States geospatial analysis.

Wetlands ecology and management·2026
Same author

Non-perennial segments in river networks.

Nature reviews. Earth & environment·2024
Same author

Closing the gap between science and management of cold-water refuges in rivers and streams.

Global change biology·2023
Same author

The stream intermittency visualization dashboard: A web application for high-frequency logger data and daily flow observations.

Hydrological processes·2023
Same author

Complex Life Histories Alter Patterns of Mercury Exposure and Accumulation in a Pond-Breeding Amphibian.

Environmental science & technology·2023
Same author

Beyond Streamflow: Call for a National Data Repository of Streamflow Presence for Streams and Rivers in the United States.

Water·2022

Related Experiment Video

Updated: Oct 8, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

8.2K

Implementing an Operational Framework to Develop a Streamflow Duration Assessment Method: A Case Study from the Arid

Raphael D Mazor1, Brian J Topping2, Tracie-Lynn Nadeau3

  • 1Southern California Coastal Water Research Project, Costa Mesa, CA 92626, USA.

Water
|January 3, 2022
PubMed
Summary

Developing rapid streamflow duration assessment methods (SDAMs) is crucial for water management. A new SDAM for the Arid West shows promise, using biological indicators to classify streamflow, though further refinement is needed.

Keywords:
classificationephemeralflow durationflow permanenceintermittencyintermittentperennialrapid assessmentstreamstemporary

More Related Videos

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds
12:50

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Published on: September 26, 2017

11.4K
A Protocol for Conducting Rainfall Simulation to Study Soil Runoff
10:35

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff

Published on: April 3, 2014

21.0K

Related Experiment Videos

Last Updated: Oct 8, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

8.2K
Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds
12:50

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Published on: September 26, 2017

11.4K
A Protocol for Conducting Rainfall Simulation to Study Soil Runoff
10:35

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff

Published on: April 3, 2014

21.0K

Area of Science:

  • Hydrology
  • Ecology
  • Geomorphology

Background:

  • Streamflow data is essential for water management but often unavailable.
  • Rapid Streamflow Duration Assessment Methods (SDAMs) offer a solution by classifying stream reaches using limited data.
  • Developing accurate SDAMs is critical for regions with data scarcity, like the Arid West.

Purpose of the Study:

  • To evaluate a framework for developing SDAMs.
  • To develop a "beta" SDAM for the Arid West United States capable of classifying streamflow duration (perennial, intermittent, ephemeral).
  • To identify and test indicators for streamflow duration assessment.

Main Methods:

  • Conducted a literature review to identify 41 potential indicators.
  • Evaluated indicators based on criteria like defensibility and consistency.
  • Measured 21 selected indicators at 89 stream reaches with known flow durations.
  • Used analysis of variance and random forest models to select metrics for the SDAM.

Main Results:

  • A "beta" SDAM was developed using five biological indicators.
  • The SDAM achieved 81% accuracy in distinguishing ephemeral from non-ephemeral reaches.
  • Accuracy decreased to 56% when classifying three flow duration classes (ephemeral, intermittent, perennial).

Conclusions:

  • The proposed framework is effective for developing SDAMs.
  • The "beta" SDAM demonstrates potential for rapid streamflow assessment in the Arid West.
  • Further data collection is required to finalize and improve the SDAM's accuracy for multiple classes.