American Journal of Water Science and Engineering

Volume 7, Issue 2, June 2021

  • Assessing Flood Vulnerability Index for Policy Implications Towards Flood Risk Management Along the Atlantic Coast of Limbe, Cameroon

    Usongo Patience Ajonina, Tepoule Nguéke Joseph, Chang Linda Meh

    Issue: Volume 7, Issue 2, June 2021
    Pages: 24-38
    Received: 9 March 2021
    Accepted: 22 March 2021
    Published: 7 April 2021
    Abstract: Floods along the Atlantic coast of Limbe are the most predominant natural disaster posing serious threats to man and the environment. Without adequate information about the risk levels and why the implementation of locally appropriate adaptation measures are less effective, flood disasters will continue to become more rampant and disastrous. The ab... Show More
  • Effects of Plow-Tillage on Preventing and Controlling the Black Water Events in Shallow Lakes

    He Yuhong, Zhou Qilin

    Issue: Volume 7, Issue 2, June 2021
    Pages: 39-47
    Received: 20 April 2021
    Accepted: 7 May 2021
    Published: 14 May 2021
    Abstract: The high organic loading sediment in the areas of algal accumulation are the primary cause of frequent occurrence of black water in the western Chao Lake. Through an algal accumulation experiment, plow-tillage based on resuspension characteristics and its effect on lake sediment was assessed using a large device capable of simulating lake-winds and... Show More
  • Analysis of Riverbed Evolution of the Waigaoqiao Branch Channel of the Yangtze Estuary in Flood Period Under New Water and Sediment Conditions

    Dai Wenyuan

    Issue: Volume 7, Issue 2, June 2021
    Pages: 48-56
    Received: 27 April 2021
    Accepted: 8 May 2021
    Published: 21 May 2021
    Abstract: With the change of sediment conditions in the Yangtze River Estuary, the river regime evolution pattern has entered a new stage. The overall trend has changed from siltation to erosion, and the impact of the evolution trend of overall river regime on local river regime needs to be further studied. Based on the hydrological and topographic data of f... Show More
  • A Contraction Based Solution for the Improvement of Fish Ladder Attraction Flow

    Kristian Angele, Patrik Andreasson, Ake Forssen, David Aldven, Gustav Hellstrom, Kjell Leonardsson

    Issue: Volume 7, Issue 2, June 2021
    Pages: 57-71
    Received: 22 April 2021
    Accepted: 24 May 2021
    Published: 4 June 2021
    Abstract: A new, potentially cost efficient, concept for improving the attraction flow to a fish ladder has been investigated in a case study. For the upstream migrating Atlantic salmon to reach the fish ladder and by-pass the case study hydropower plant, it must be able to localize the attraction flow where it enters the main flow from the tailrace of the h... Show More
  • Our Water Mains Contaminate Us with E. Coli, Lead and Copper – Preventable Illness and Death Follow

    Robert Allan Leishear

    Issue: Volume 7, Issue 2, June 2021
    Pages: 72-96
    Received: 12 April 2021
    Accepted: 24 April 2021
    Published: 28 June 2021
    Abstract: The title of this article may seem abrasive, but the stakes are human lives that are affected by E. coli infections and drinking water contaminations by lead and copper. First of all, this research targets a new and urgent understanding of a common cause for E. coli outbreaks, which results in many illnesses and deaths every year. As part of a worl... Show More