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Related Concept Videos

Typical Model Studies01:30

Typical Model Studies

Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
Global Climate Change01:50

Global Climate Change

Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
Modeling and Similitude01:12

Modeling and Similitude

Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
Buoyancy and Stability for Submerged and Floating Bodies01:11

Buoyancy and Stability for Submerged and Floating Bodies

In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
Effect of Sea Water on Concrete01:22

Effect of Sea Water on Concrete

Concrete exposed to seawater can undergo degradation like the dissolution of ettringite and gypsum, increasing the material's porosity and decreasing its strength. In contrast, the crystallization of salts within the concrete's pores can cause expansion, particularly above the waterline where evaporation occurs. Nonetheless, this expansion only happens when seawater, enabled by the concrete's permeability, manages to infiltrate the structure.
Concrete in areas between tide marks, which undergo...
Influence of Earth's Curvature and Atmospheric Refraction on Leveling01:26

Influence of Earth's Curvature and Atmospheric Refraction on Leveling

During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance. Over a...

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Updated: Jun 27, 2026

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information
10:28

Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information

Published on: June 13, 2020

Modelling the global coastal ocean.

Jason Holt1, James Harle, Roger Proctor

  • 1Proudman Oceanographic Laboratory, 6 Brownlow Street, Liverpool L3 5DA, UK. jholt@pol.ac.uk

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|December 18, 2008
PubMed
Summary
This summary is machine-generated.

We developed a Global Coastal Ocean Modelling System to simulate coastal seas, crucial for understanding their role in global biogeochemical cycles and impacts of climate change.

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Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information
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Area of Science:

  • Oceanography
  • Biogeochemistry
  • Climate Modeling

Background:

  • Shelf and coastal seas exhibit high biological productivity and biogeochemical cycling rates.
  • Current Earth system models lack adequate resolution and process representation for coastal regions.
  • This limits understanding of coastal ocean's role in global cycles and climate change impacts.

Purpose of the Study:

  • To present a novel system for systematically simulating global coastal ocean regions.
  • To address the limitations of existing Earth system models in representing coastal seas.
  • To enable elucidation of coastal ocean's role in global biogeochemical cycles and climate change effects.

Main Methods:

  • Development of the Global Coastal Ocean Modelling System (GCOMS).
  • Utilizing automatically generated multiple nested model domains.
  • Coupling the Proudman Oceanographic Laboratory Coastal Ocean Modelling System (POLCOMS) with the European Regional Seas Ecosystem Model (ERSEM).

Main Results:

  • Demonstration of the viability of the GCOMS concept through preliminary results.
  • Successful simulation of coastal regions globally.
  • Initial insights into the system's capability for exploring key global change issues.

Conclusions:

  • The GCOMS provides a practical and systematic approach to modeling global coastal seas.
  • The system shows promise for investigating the impact of global change on shelf seas.
  • Future applications include exploring the carbon cycle and climate change effects on fisheries in coastal environments.