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

Group Polarization01:01

Group Polarization

39.2K
Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
39.2K
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

75.6K
Dipole Moment of a Molecule
75.6K
Polar Coordinates01:24

Polar Coordinates

351
The polar coordinate system offers an alternative to the Cartesian coordinate system for specifying points in a plane, using a distance and an angle instead of x and y coordinates. This system is particularly advantageous in situations involving circular or rotational symmetry, such as in physics or engineering problems involving waves, oscillations, or orbital paths.Defining Polar CoordinatesIn polar coordinates, a point is represented as P(r, ��), where r is the radial distance...
351
Polarity of the Cytoskeleton01:18

Polarity of the Cytoskeleton

25.3K
The intrinsic polarity of cells can be primarily attributed to two factors- i) the asymmetric accumulation of mobile components such are regulatory molecules and subcellular components across the cell and ii) the orientation of polar cytoskeletal filaments that make up the cytoskeletal networks, specifically microfilaments, and microtubules arranged along the axis of polarity. Interactions between the cytoskeletal filaments are crucial for the establishment and maintenance of the polar nature...
25.3K
Bond Polarity, Dipole Moment, and Percent Ionic Character02:48

Bond Polarity, Dipole Moment, and Percent Ionic Character

35.6K
Bond Polarity
35.6K
Polar Covalent Bonds02:24

Polar Covalent Bonds

29.3K
Covalent bonds are formed between two atoms when both have similar tendencies to attract electrons to themselves (i.e., when both atoms have identical or fairly similar ionization energies and electron affinities). Nonmetal atoms frequently form covalent bonds with other nonmetal atoms. For example, the hydrogen molecule, H2, contains a covalent bond between its two hydrogen atoms. When two separate hydrogen atoms with a particular potential energy approach each other, their valence orbitals...
29.3K

You might also read

Related Articles

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

Sort by
Same author

Fingerprinting the recovery of Antarctic ozone.

Nature·2025
Same author

NASA Satellite Measurements Show Global-Scale Reductions in Free Tropospheric Ozone in 2020 and Again in 2021 During COVID-19.

Geophysical research letters·2022
Same author

Record-Breaking Increases in Arctic Solar Ultraviolet Radiation Caused by Exceptionally Large Ozone Depletion in 2020.

Geophysical research letters·2022
Same author

Assessment of upper tropospheric and stratospheric water vapor and ozone in reanalyses as part of S-RIP.

Atmospheric chemistry and physics·2020
Same author

Reanalysis comparisons of upper tropospheric/lower stratospheric jets and multiple tropopauses.

Atmospheric chemistry and physics·2020
Same author

The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2).

Journal of climate·2020

Related Experiment Video

Updated: Jan 31, 2026

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

11.9K

Reanalysis intercomparisons of stratospheric polar processing diagnostics.

Zachary D Lawrence1,2, Gloria L Manney2,1, Krzysztof Wargan3,4

  • 1New Mexico Institute of Mining and Technology, Socorro, NM USA.

Atmospheric Chemistry and Physics
|December 25, 2018
PubMed
Summary

Comparing four reanalysis datasets reveals significant improvements in polar stratospheric cloud diagnostics after 1999 due to data assimilation changes. This highlights the importance of using multiple reanalysis datasets for accurate polar processing studies.

More Related Videos

Microfluidic Applications for Disposable Diagnostics
10:21

Microfluidic Applications for Disposable Diagnostics

Published on: February 3, 2008

9.3K
Optimization, Test and Diagnostics of Miniaturized Hall Thrusters
12:22

Optimization, Test and Diagnostics of Miniaturized Hall Thrusters

Published on: February 16, 2019

9.6K

Related Experiment Videos

Last Updated: Jan 31, 2026

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

11.9K
Microfluidic Applications for Disposable Diagnostics
10:21

Microfluidic Applications for Disposable Diagnostics

Published on: February 3, 2008

9.3K
Optimization, Test and Diagnostics of Miniaturized Hall Thrusters
12:22

Optimization, Test and Diagnostics of Miniaturized Hall Thrusters

Published on: February 16, 2019

9.6K

Area of Science:

  • Atmospheric Science
  • Climate Science
  • Geophysics

Background:

  • Polar stratospheric regions are critical for ozone depletion and atmospheric chemistry.
  • Reanalysis datasets are crucial tools for studying polar atmospheric processes.
  • Previous studies have noted discrepancies in reanalysis data for polar regions.

Purpose of the Study:

  • To compare polar processing diagnostics from four major reanalysis datasets.
  • To assess the impact of data assimilation changes on reanalysis agreement.
  • To provide recommendations for using reanalysis data in polar studies.

Main Methods:

  • Comparison of minimum temperatures (Tmin) and polar stratospheric cloud area (APSC).
  • Analysis of potential vorticity (PV) diagnostics: maximum PV gradients (MPVG) and sunlit vortex area (SVA).
  • Evaluation of winter mean volume of air below PSC thresholds and vortex decay dates.

Main Results:

  • Large differences in Tmin and APSC existed before 1999, especially in the Southern Hemisphere (SH).
  • Reanalyses showed improved agreement after 1999, particularly for temperature diagnostics in the SH.
  • Vortex diagnostics (MPVG, SVA) showed more complex behavior, with some metrics remaining consistent over time.

Conclusions:

  • The transition to new data assimilation systems around 1998-2000 significantly improved reanalysis agreement for polar temperature diagnostics.
  • Caution is advised when assessing trends from reanalysis temperatures due to data sensitivities.
  • Using multiple reanalysis datasets is recommended to evaluate the sensitivity of scientific results on polar processing.