By Topic

A Complex Dielectric Mixing Law Model for Forest Fire Ash Particulates

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Thomas Baum ; School of Electrical and Computer Engineering (SECE) and School of Aerospace and Mechanical Manufacturing Engineering (SAMME), Royal Melbourne Institute of Technology (RMIT), Australia ; Lachlan Thompson ; Kamran Ghorbani

This letter presents an empirical mixing law for forest fire ash over X-Band (8-12 GHz). Six different species of Australian flora were tested. These include eucalypt, bracken fern, she oak, wattle, cypress, and pine. The investigation highlighted the discrepancies of mixing laws based on a spherical mixing phase to those measured. By optimizing the dimensionless parameter (v) of the unified mixing law formula, a good match was achieved. An average value of v = 10 was achieved over all six samples. The effective solid complex permittivities “εi ” for all the samples were determined. These were eucalypt (6.30 + 0.06 j), bracken fern (4.85 + 0.51 j), she oak (10.05 + 1.76 j), wattle (11.44 + 0.1.71 j), cypress (8.68 + 0.85 j), and pine (16.99 + 3.51 j).

Published in:

IEEE Geoscience and Remote Sensing Letters  (Volume:9 ,  Issue: 5 )