Related Experiment Video

Updated: Jun 12, 2026

Field Measurement of Effective Leaf Area Index using Optical Device in Vegetation Canopy
06:28

Field Measurement of Effective Leaf Area Index using Optical Device in Vegetation Canopy

Published on: July 29, 2021

Airborne and ground based lidar measurements of the atmospheric pressure profile

C L Korb, G K Schwemmer, M Dombrowski

    Applied Optics
    |June 18, 2010
    PubMed

    More Related Videos

    The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe08:53

    The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe

    Published on: December 3, 2016

    Measurement of Aerosols Optical Thickness of the Atmosphere using the GLOBE Handheld Sun Photometer06:27

    Measurement of Aerosols Optical Thickness of the Atmosphere using the GLOBE Handheld Sun Photometer

    Published on: May 29, 2019

    Related Concept Videos

    Application of Linearization and Approximation01:29

    Application of Linearization and Approximation

    A drone flying through complex terrain often relies on more than one sensing method to estimate small changes in altitude. Along with direct measurements, air pressure provides a useful indirect indicator of vertical movement. Atmospheric pressure decreases as altitude increases, and this relationship is commonly described using an exponential model. Although accurate, converting pressure measurements into altitude values requires calculations that are too complex to perform repeatedly during...
    Variation of Atmospheric Pressure01:18

    Variation of Atmospheric Pressure

    Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
    Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
    Let p(y) be the atmospheric pressure at...
    Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer02:57

    Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer

    Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
    Measurement of Fluid Pressure01:16

    Measurement of Fluid Pressure

    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...
    Boundary Layer Characteristics01:18

    Boundary Layer Characteristics

    When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...
    Pressure Gauges01:20

    Pressure Gauges

    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...