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A reassessment of the heat transport by variable viscosity convection with plates and lids

Gurnis, Michael (1989) A reassessment of the heat transport by variable viscosity convection with plates and lids. Geophysical Research Letters, 16 (2). pp. 179-182. ISSN 0094-8276. http://resolver.caltech.edu/CaltechAUTHORS:20130212-135607085

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Abstract

The heat transport by a viscous fluid with temperature dependent viscosity has been studied numerically. As opposed to previous models, the top surface of the fluid clearly defines a tectonic plate with horizontally uniform velocity and subduction. Past studies failed to incorporate plates resulting in inefficient heat transport. With tectonic plates, the heat transport is as efficient as Rayleigh-Benard convection with constant viscosity; there is a strong buffering between internal temperature and heat loss. Past studies of parameterized convection which incorporated parameters indicative of a strong buffering between internal temperature and total heat output still provide the most physically plausible representation of the Earth's thermal evolution.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1029/GL016i002p00179 DOIUNSPECIFIED
http://onlinelibrary.wiley.com/doi/10.1029/GL016i002p00179/abstractPublisherUNSPECIFIED
Additional Information:© 1989 by the American Geophysical Union. Received November 23, 1988; accepted December 19, 1988. Henry Pollack provided helpful comments on this ms. Computing carded out at on the facilities of the San Diego Supercomputer Center.
Group:Seismological Laboratory
Record Number:CaltechAUTHORS:20130212-135607085
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130212-135607085
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36882
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:27 Feb 2013 21:55
Last Modified:11 Jun 2015 12:59

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