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 Experiment Videos

Particle fluxes above forests: observations, methodological considerations and method comparisons.

S C Pryor1, S E Larsen, L L Sørensen

  • 1Atmospheric Science Program, Department of Geography, Indiana University, 701 E. Kirkwood Avenue, Bloomington, IN 47405, USA. spryor@indiana.edu

Environmental Pollution (Barking, Essex : 1987)
|September 4, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Activity of a three-phage combination against <i>Mycobacterium tuberculosis</i> in disease-relevant conditions.

bioRxiv : the preprint server for biology·2026
Same author

Using satellite-based measurements to explore spatiotemporal scales and variability of drivers of new particle formation.

Journal of geophysical research. Atmospheres : JGR·2020
Same author

20% of US electricity from wind will have limited impacts on system efficiency and regional climate.

Scientific reports·2020
Same author

Arbuscular mycorrhizas are present on Spitsbergen.

Mycorrhiza·2017
Same author

Risk factors for Campylobacter colonization in Danish broiler flocks, 2010 to 2011.

Poultry science·2015
Same author

Assessing climate change impacts on the near-term stability of the wind energy resource over the United States.

Proceedings of the National Academy of Sciences of the United States of America·2011

This study compared micrometeorological methods for measuring particle number flux over forests. Eddy covariance and relaxed eddy accumulation (REA) methods showed strong agreement in particle flux measurements.

Area of Science:

  • Atmospheric Science
  • Forest Ecology
  • Environmental Monitoring

Background:

  • Accurate measurement of particle number flux above forest canopies is crucial for understanding atmospheric processes.
  • Micrometeorological methods offer potential for continuous, in-situ flux determination.

Purpose of the Study:

  • To test, evaluate, and compare different micrometeorological techniques for quantifying particle number flux.
  • To assess the reliability and inter-method agreement of particle flux measurements above a forest ecosystem.

Main Methods:

  • Utilized eddy covariance, relaxed eddy accumulation (REA), co-spectral, and dissipation methods.
  • Collected half-hour average particle number flux data above a Danish broad-leaved forest.

Main Results:

Related Experiment Videos

  • Eddy covariance yielded median particle number fluxes of -1.6x10^6 m^-2 s^-1, with significant statistical uncertainties.
  • Particle number fluxes from REA were highly correlated and similar in magnitude to eddy covariance.
  • Co-spectral and dissipation methods correlated with eddy covariance but showed higher absolute flux magnitudes.

Conclusions:

  • Eddy covariance and REA are reliable and comparable methods for forest particle number flux estimation.
  • Statistical uncertainties necessitate careful interpretation of particle flux data, with many values not statistically significant.
  • Discrepancies in magnitude highlight the need for method-specific considerations in flux analysis.