Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 7-Day Trial for You or Your Team.

Learn More →

Observations of the effect of wind on the cooling of active lava flows

Observations of the effect of wind on the cooling of active lava flows We present the first direct observations of the cooling of active lava flows by the wind. We confirm that atmospheric convective cooling processes (i.e., the wind) dominate heat loss over the lifetime of a typical pahoehoe lava flow. In fact, the heat extracted by convection is greater than predicted, especially at wind speeds less than 5 m/s and surface temperatures less than 400°C. We currently estimate that the atmospheric heat transfer coefficient is about 45–50 W m−2 K−1 for a 10 m/s wind and a surface temperature ∼500°C. Further field experiments and theoretical studies should expand these results to a broader range of surface temperatures and wind speeds. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Geophysical Research Letters Wiley

Observations of the effect of wind on the cooling of active lava flows

Loading next page...
 
/lp/wiley/observations-of-the-effect-of-wind-on-the-cooling-of-active-lava-flows-GMCxusG400

References (9)

Publisher
Wiley
Copyright
Copyright © 2003 by the American Geophysical Union.
ISSN
0094-8276
eISSN
1944-8007
DOI
10.1029/2003GL017994
Publisher site
See Article on Publisher Site

Abstract

We present the first direct observations of the cooling of active lava flows by the wind. We confirm that atmospheric convective cooling processes (i.e., the wind) dominate heat loss over the lifetime of a typical pahoehoe lava flow. In fact, the heat extracted by convection is greater than predicted, especially at wind speeds less than 5 m/s and surface temperatures less than 400°C. We currently estimate that the atmospheric heat transfer coefficient is about 45–50 W m−2 K−1 for a 10 m/s wind and a surface temperature ∼500°C. Further field experiments and theoretical studies should expand these results to a broader range of surface temperatures and wind speeds.

Journal

Geophysical Research LettersWiley

Published: Oct 1, 2003

There are no references for this article.