Heat flow - heat production relationships in the UK and the vertical distribution of heat production in granite batholiths

1987 ◽  
Vol 14 (3) ◽  
pp. 279-282 ◽  
Author(s):  
P. C. Webb ◽  
M. K. Lee ◽  
G. C. Brown
1987 ◽  
Vol 144 (1) ◽  
pp. 35-42 ◽  
Author(s):  
M. K. LEE ◽  
G. C. BROWN ◽  
P. C. WEBB ◽  
J. WHEILDON ◽  
K. E. ROLLIN

1987 ◽  
Vol 14 (3) ◽  
pp. 275-278 ◽  
Author(s):  
J. L. Vigneresse ◽  
J. Jolivet ◽  
M. Cuney ◽  
G. Bienfait
Keyword(s):  

2009 ◽  
Vol 99 (5) ◽  
pp. 525-535 ◽  
Author(s):  
C.R. Wood ◽  
D.R. Reynolds ◽  
P.M. Wells ◽  
J.F. Barlow ◽  
I.P. Woiwod ◽  
...  

AbstractThe continuous operation of insect-monitoring radars in the UK has permitted, for the first time, the characterization of various phenomena associated with high-altitude migration of large insects over this part of northern Europe. Previous studies have taken a case-study approach, concentrating on a small number of nights of particular interest. Here, combining data from two radars, and from an extensive suction- and light-trapping network, we have undertaken a more systematic, longer-term study of diel flight periodicity and vertical distribution of macro-insects in the atmosphere. Firstly, we identify general features of insect abundance and stratification, occurring during the 24-hour cycle, which emerge from four years' aggregated radar data for the summer months in southern Britain. These features include mass emigrations at dusk and, to a lesser extent, at dawn and daytime concentrations associated with thermal convection. We then focus our attention on the well-defined layers of large nocturnal migrants that form in the early evening, usually at heights of 200–500 m above ground. We present evidence from both radar and trap data that these nocturnal layers are composed mainly of noctuid moths, with species such as Noctua pronuba, Autographa gamma, Agrotis exclamationis, A. segetum, Xestia c-nigrum and Phlogophora meticulosa predominating.


Observations of surface heat flow may be used to constrain the thickness of the lithosphere only in those regions that have approached conductive equilibrium, presumably the oldest continental and oceanic areas. A model is set up to investigate lithospheric thickness differences between old oceans and old continents. The main variable parameters are the surface heat flow, the mean heat production within the continents, and the vertical distribution of the continental heat production. There need be no thickness difference between an old continental region, with a heat flow of 40 mW m -2 and a uniform crustal heat production of 0.5 μW m -3 , and an old oceanic region. Both these values are close to average for old shield areas. Lower surface heat flow, higher mean heat production or exponental distribution of the same heat sources imply a thicker continental lithosphere. In some places old continental lithosphere is probably thicker than that under oceans.


1987 ◽  
Vol 14 (3) ◽  
pp. 283-286 ◽  
Author(s):  
David M. Fountain ◽  
Kevin P. Furlong ◽  
Matthew H. Salisbury

Geothermics ◽  
2019 ◽  
Vol 82 ◽  
pp. 254-266 ◽  
Author(s):  
Yibo Wang ◽  
Shengbiao Hu ◽  
Zhuting Wang ◽  
Guangzheng Jiang ◽  
Di Hu ◽  
...  

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