Please use this identifier to cite or link to this item:

Title: Fluxo de calor, fusão do gelo e nível do mar
Authors: Duque, Maria Rosa
Keywords: Fluxo de calor
Fusão de gelos
nível do mar
Issue Date: Mar-2015
Publisher: APMG
Citation: Duque, M.R. (2015). Fluxo de calor, fusão do gelo e nível do mar.APMG2015-9º Simpósio de Meteorologia e Geofísica da APMG, 16 a 18 de Março, Tavira, Portugal.
Abstract: SUMMARY The recent values of heat flow data obtained for Greenland and West Antarctica are higher than it was supposed. In West Antarctica, values higher than 200mW/m2 were found (Schroeder et al,2014) and in Greenland, values higher than 140 mW/m2 were detected in the Central part (Petrunin et al,2013). Thermal conductivity values of ice are relatively low at atmospheric pressure. This means that if we consider heat flowing by conduction, near the surface of the globe, with this heat flow values, the thermal gradients mill be elevated. A possible reason presented for the high heat flow values in Greenland is the existence of a thin lithosphere. The study of the ice melting near the poles is related with the changes in sea level. The obtention of this parameter is difficult, Tide gauges, isostatic adjustment ,plate tectonics, episodes related with local climate, can mask the value of the parameter needed. The time interval with measurement is not enough to obtain clear information about the past. The precision of the measurements made today is very different from the ancient values .Turning again to the heat flow values ,its spatial distribution shows clearly zones in the oceans with high heat flow values. How can this heat influence water movements in that regions? There are clearly lateral discontinuities. How can this influence the temperature of the oceans?
Type: lecture
Appears in Collections:FIS - Comunicações - Em Congressos Científicos Nacionais

Files in This Item:

File Description SizeFormat
07 - Fluxo de calor, fusão do gelo e nível do mar.pdf86.95 kBAdobe PDFView/Open
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois