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Related Concept Videos

Quality of Water01:19

Quality of Water

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In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
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Testing Water Quality01:14

Testing Water Quality

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When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
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Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

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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...
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States of Water01:23

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Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart.
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Water and Mineral Acquisition02:34

Water and Mineral Acquisition

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Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
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Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds
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Integrating Inland and Coastal Water Quality Data for Actionable Knowledge.

Ghada Y H El Serafy1,2, Blake A Schaeffer3, Merrie-Beth Neely4

  • 1Deltares, Boussinesqweg 1, 2629 HV Delft, The Netherlands.

Remote Sensing
|February 23, 2023
PubMed
Summary
This summary is machine-generated.

Integrating diverse water quality data, from sensors and satellite observations, enhances ecosystem understanding and management. This approach scales data for actionable insights, supporting global water resource decisions.

Keywords:
coastalestuaryintegrationinteroperabilitylakemanagementremote sensingsensorswater quality

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Area of Science:

  • Environmental Science
  • Water Resource Management
  • Remote Sensing
  • Data Assimilation

Background:

  • Water quality data are collected through discrete sampling and continuous sensor networks for inland and coastal waters.
  • Water quality parameters can also be derived from model outputs and remote sensing technologies.
  • Integrating these varied data sources offers a more comprehensive understanding of dynamic aquatic ecosystems.

Purpose of the Study:

  • To review existing data sources and integration frameworks for water quality data.
  • To identify gaps in current frameworks for scaling water quality data across regions.
  • To propose a new integration framework to enhance global capacity for water quality data utility and access.

Main Methods:

  • Review of current water quality data sources (e.g., monitoring programs, sensors, remote sensing, models).
  • Analysis of existing data integration frameworks and their limitations.
  • Development of a proposed integration framework aligned with the Group on Earth Observations (GEO) AquaWatch Initiative.

Main Results:

  • Current methods for scaling water quality data are emerging, driven by global satellite data availability.
  • Gaps exist in frameworks for translating localized data into globally applicable, actionable knowledge.
  • The proposed framework aims to bridge these gaps by enhancing data integration and accessibility.

Conclusions:

  • Integrating diverse water quality data is crucial for improved ecosystem characterization and water resource management.
  • A standardized, scalable integration framework is needed to leverage global data, especially from remote sensing.
  • The proposed framework supports equitable access to water quality information for policy and decision-making.