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

Sound as Pressure Waves01:17

Sound as Pressure Waves

2.7K
Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...
2.7K
Measurement of Fluid Pressure01:16

Measurement of Fluid Pressure

336
Fluid pressure is commonly measured using devices called manometers, which rely on liquid columns to indicate pressure differences. The height of a liquid column in a manometer reflects the pressure exerted by the fluid, providing a simple yet effective means of measurement. Different types of manometers serve specific purposes based on their configurations and the type of fluids involved.
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...
336
Deriving the Speed of Sound in a Liquid01:09

Deriving the Speed of Sound in a Liquid

658
As with waves on a string, the speed of sound or a mechanical wave in a fluid depends on the fluid's elastic modulus and inertia. The two relevant physical quantities are the bulk modulus and the density of the material. Indeed, it turns out that the relationship between speed and the bulk modulus and density in fluids is the same as that between the speed and the Young's modulus and density in solids.
The speed of sound in fluids can be derived by considering a mechanical wave...
658
Pressure Gauges01:20

Pressure Gauges

4.2K
Most pressure gauges, like those on scuba tanks, are calibrated to read zero at atmospheric pressure. Readings from such gauges are called the gauge pressure, which is the pressure relative to atmospheric pressure. When the pressure inside the tank exceeds atmospheric pressure, the gauge reports a positive value. Some gauges are designed to measure negative pressure. For example, many physics experiments must take place in a vacuum chamber, a rigid chamber from which some of the air is pumped...
4.2K
Propagation of Waves01:07

Propagation of Waves

2.5K
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
2.5K
Precipitation Gravimetry01:03

Precipitation Gravimetry

8.0K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
8.0K

You might also read

Related Articles

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

Sort by
Same author

Ocean-bottom seismometers reveal surge dynamics in Earth's longest-runout sediment flows.

Communications earth & environment·2025
Same author

Optimization of operating parameters for 2,5-furandicarboxylic acid recovery using electrodialysis with bipolar membrane and traditional electrodialysis systems.

Heliyon·2024
Same author

Observations of diapycnal upwelling within a sloping submarine canyon.

Nature·2024
Same author

Thermal ages of the Huatung Basin determined from seismic waveform modeling: insights into Southeast Asia's evolution.

Scientific reports·2023
Same author

Low-Frequency Ground Vibrations Generated by Debris Flows Detected by a Lab-Fabricated Seismometer.

Sensors (Basel, Switzerland)·2022
Same author

Changing surface ocean circulation caused the local demise of echinoid Scaphechinus mirabilis in Taiwan during the Pleistocene-Holocene transition.

Scientific reports·2022

Related Experiment Video

Updated: Oct 11, 2025

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

8.8K

Tracking deep-sea internal wave propagation with a differential pressure gauge array.

Chu-Fang Yang1,2,3, Wu-Cheng Chi4, Hans van Haren5

  • 1Earth System Science Program, Taiwan International Graduate Program (TIGP), Academia Sinica and National Central University, Taipei, Taiwan, ROC. kcfyang@sinica.edu.tw.

Scientific Reports
|December 3, 2021
PubMed
Summary
This summary is machine-generated.

Geophysical differential pressure gauges (DPGs) can detect deep ocean internal motions by measuring temperature variations. Analyzing DPG data reveals patterns of internal wave propagation, offering valuable insights into ocean dynamics.

More Related Videos

The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe
08:53

The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe

Published on: December 3, 2016

7.1K
Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging
04:54

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

3.2K

Related Experiment Videos

Last Updated: Oct 11, 2025

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
08:54

Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

Published on: February 13, 2018

8.8K
The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe
08:53

The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe

Published on: December 3, 2016

7.1K
Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging
04:54

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

3.2K

Area of Science:

  • Oceanography
  • Geophysics

Background:

  • Temperature variations are key indicators of deep ocean density changes, revealing internal waves and turbulent motions.
  • Geophysical differential pressure gauges (DPGs) offer potential for long-term, complementary ocean observation by detecting ambient temperature.

Purpose of the Study:

  • To investigate the impact of temperature on DPG signals related to deep ocean internal motions.
  • To analyze the correlation between DPG signals and temperature variations using a seafloor array.

Main Methods:

  • Deployed four DPGs and a high-resolution temperature sensor (T-sensor) in a square-kilometer array offshore Taiwan.
  • Applied beamforming-frequency-wavenumber analysis and linear regression to DPG and T-sensor data.
  • Estimated the propagating slowness of internal motions and the thermal relaxation time of DPGs.

Main Results:

  • DPG signals correlated with T-sensor temperature variations between 0.002 and 0.1 mHz.
  • Identified time shifts in DPG signals attributed to thermal conduction and internal motion propagation.
  • Estimated internal motion slowness between 0.5 and 7.4 s m⁻¹ and DPG thermal relaxation time within 10³-10⁴ s.

Conclusions:

  • Systematic scanning of DPG data at frequencies below 0.1 mHz can illuminate deep ocean internal wave propagation patterns.
  • DPGs provide valuable data for understanding complex deep-sea dynamics, especially when used in multi-scale arrays.