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  • Springer  (14)
  • 1
    Electronic Resource
    Electronic Resource
    Regularization of downward heat flow continuation (1987)
    Springer
    Studia geophysica et geodaetica 31 (1987), S. 359-368 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Description / Table of Contents: Summary Some regularization approaches to downward heat flow continuation from the Earth's surface to the depth of interest are presented, provided the heat transfer is described by the homogeneous steady-state equation. The Fourier transform of horizontal coordinates is used and the relation between the regularization of the heat flow spectrum and the regularization of the heat flow in the spatial domain are discussed. The utilization of an a priori information about the subsurface heat flow is mentioned.
    Notes: Резюме Пре¶rt;ложены некоmорые реzулярuзaцuонные nо¶rt;хо¶rt;ы к nро¶rt;олженuю внuз nоверхносmноzо mеnловоzо nоmокa в nре¶rt;nоложенuu, чmо nеренос mеnлa оnuсывaеmся о¶rt;норо¶rt;ным сmaцuонaрным урaвненuем (урaвненuем Лanлaсa). Исnользовaно nреобрaзовaнuе Фурье zорuзонmaльных коор¶rt;uнam u рaссмоmренa связь меж¶rt;у реzулярuзaцuеŭ mеnловоzо nоmокa u рерулярuзaцuеŭ еzо сnекmрa. Уnомянуma возможносmь nрuмененuя aнnрuорноŭ оценкu nо¶rt;nоверхносmноzо mеnловоzо nоmокa.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01882607
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  • 2
    Electronic Resource
    Electronic Resource
    The thermal field of the lithosphere in the region of mid-ocean ridges modelled on the basis of known surface temperature and heat flows (1984)
    Springer
    Studia geophysica et geodaetica 28 (1984), S. 407-417 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Description / Table of Contents: Summary The possibility of solving the stationary heat equation with the convective term is demonstrated in the case that the velocity field of the continuum, and the temperature and heat flow on the Earth's surface are known, and that an assumption is made about the magnitude of heat flows on another part of the boundary of the two-dimensional region being investigated, whereas no boundary condition is imposed on the remainder of the region's boundary. The problem has been solved numerically for a kinematic model of the lithosphere in the region of mid-ocean ridges, based on the assumption of a broad deflected convective flow moving at a distance of more than about 150 km from the ridge modelled as a plate.
    Notes: Резюме Покaзaнa возможносmь решенuя сmaцuонaрно о урaвненuя nереносa mеnлa в случaе, ко ¶rt;a uзвесmно nоле скоросmеŭ конmuнуумa u нa nоверхносmu Землu uзвесmны mемnерamурa u mеnловоŭ nоmок. Нa ¶rt;ру оŭ чaсmu рaнuцы рaссмamрuвaемоŭ ¶rt;вухмерноŭ облaсmu вво¶rt;umся nре¶rt;nоложенuе о велuчuне mеnлово о nоmокa a нa осmaльноŭ чaсmu рaнuцы крaевое условuе не зa¶rt;aно. Эma nроблемa былa чuсленным меmо¶rt;ом решенa ¶rt;ля кuнемamuческоŭ мо¶rt;елu лumосферы в облaсmu сре¶rt;uнно-океaнuческuх хребmов, основaнноŭ нa nре¶rt;сmaвленuu шuроко сверmывaюще ося конвекmuвно о nоmокa нa рaссmоянuях оm хребma nревышaющuх 150 км ¶rt;вuжуще ося кaк орuзонmaльныŭ nоmок.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01642993
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  • 3
    Electronic Resource
    Electronic Resource
    The optimal shape design method applied to modelling thermal thinning of the oceanic lithosphere near hot spots (1986)
    Springer
    Studia geophysica et geodaetica 30 (1986), S. 356-375 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Description / Table of Contents: Summary Using the optimal shape design method, which is generally described, and von Herzen's et al. measurements of the heat flow, the shape of the lithosphere and its thermal field is computed in the vertical plane parallel to the hot spot source versus the plate velocity at a distance of about 250 km from the axis of the Hawaiian Island chain. The results are compared with the computations based on Crough's idea of thermal rejuvenation of the oceanic lithosphere above a hot spot source. If we assume that the lateral cross-section of the lithospheric bottom is described by the Gaussian curve Δh=Δh0 exp (−y2/2σ2), we obtain Δh0≦35 km and σ≧130 km, where Δh is the value of lithospheric thinning and y the lateral coordinate. We thus obtain the lower limit of the lateral dimension of the Hawaiian anomaly.
    Notes: Резюме Прuменяя меmо¶rt; оnmuмaльного nоuскa облaсmu, коmорыŭ в общuх черmaх оnuсывaеmся, u ¶rt;aнные о mеnловом nоmоке, вычuсленa формa лumосферы u ее mеnловое nоле в верmuкaльноŭ nлоскосmu, naрaллельноŭ скоросmu лumосферы оmносumельно uсmочнuкaгорячеŭ mочкu u у¶rt;aленноŭ nрuблuзumельно 250 км оm лuнuuгaвaŭского aрхunелaгa. Резульmamы срaвнены с вычuсленuямu, основaннымu нa u¶rt;еu Крaфa (Crough), кaсaющuмuся mеnлового уmоненuя океaнuческоŭ лumосферы нa¶rt; uсmочнuкомгорячеŭ mочкu. Еслu nре¶rt;nоложumь, чmо лamерaльное nоnеречное сеченuе лumосферuческого ¶rt;нa оnuсывaеmся крuвоŭ Гaуссa Δh=Δh0 exp (−y2/2σ2), mо nолучumся Δh0 ≦35 кмuσ ≧130 км,г¶rt;е Δh—лumосферuческое уmоненuе u у—лamерaльнaя коор¶rt;uнama. Сле¶rt;овamельно, σ=130 км являеmся нuжным nре¶rt;елом лamерaльного рaзмерaгaвaŭскоŭ aномaлuu.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01646380
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  • 4
    Electronic Resource
    Electronic Resource
    Temperature paleogradient estimations in the central Bohemian basin (1990)
    Springer
    Studia geophysica et geodaetica 34 (1990), S. 208-219 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary The coalification data of 12 boreholes in the Central Bohemian Basin are used to evaluate the paleotemperature gradients for the Upper Carboniferous period of the basin's development. Two versions of the burial history considered are supposed to yield an upper and a lower estimate. According to the more probable “lower” version, the average values of the paleogradient suggest an increasing tendency from west to east in the interval of 45–53K/km. The current geothermal gradients vary in the range of 28–35K/km. By combining the present thermal conductivity and the paleogradients, we have tried to estimate the Upper Carboniferous heat flow. Its values range from 96mW/m 2 to 117mW/m 2 . The results obtained can be compared with the paleogradient estimates in the Saar-Nahe Basin (F. R. of Germany). This region, which is similar with respect to the time of origin and tectonic pattern to the Central Bohemian Basin, displays on the average a slightly higher Permo-Carboniferous geothermal gradient of 60K/km.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02295927
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  • 5
    Electronic Resource
    Electronic Resource
    Temperature modelling along the Taratashskiy profile crossing the ural mountains (1992)
    Springer
    Studia geophysica et geodaetica 36 (1992), S. 349-357 
    Details
    ISSN: 1573-1626
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary The temperature-depth distribution was calculated to a depth of 70 km along the 520 km long Taratashskiy refraction profile crossing the Ural Mts., approximately along latitude 56°N. The steady-state model was solved numerically using the finite-difference method, the vertical distribution of heat production was derived from the observed seismic velocities. It was shown that at the Moho boundary, the mantle heat flow varied between 10 and 25 mWm−2, and the Moho temperature amounted to 300–550°C for the two versions studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01625488
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  • 6
    Electronic Resource
    Electronic Resource
    Subsurface temperature measurements and terrestrial heat flow estimates in the Aswan region, Egypt (1995)
    Springer
    Studia geophysica et geodaetica 39 (1995), S. 162-176 
    Details
    ISSN: 1573-1626
    Keywords: borehole temperatures ; terrestrial heat flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Notes: Summary The results of temperature measurements in six boreholes, drilled near the west shores of the Lake Nasser in the Aswan region in the Nubian Desert, are reported. Temperature-depth profiles, complemented by thermal conductivity determinations of surface rock samples, were used to calculate the existing range of heat flow density in the region as 40 ÷ 60 mWm−2, which is consistent with the values from the adjacent areas, reported in the literature. The extrapolated mean annual ground surface temperatures amount, on the average, to 30°C, which is 3 K higher than the mean annual air temperature in the region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02296073
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  • 7
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    The thermal field of the lithosphere in the region of mid-ocean ridges modelled on the basis of known surface temperature and heat flows (1984)
    Springer
    Details
    Publication Date: 1984-12-01
    Print ISSN: 0039-3169
    Electronic ISSN: 1573-1626
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Published by Springer
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  • 8
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    A comparative study of geothermal and meteorological records of climate change in Kamchatka (2006)
    Springer
    Details
    Publication Date: 2006-10-01
    Print ISSN: 0039-3169
    Electronic ISSN: 1573-1626
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Published by Springer
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  • 9
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    Temperature paleogradient estimations in the central Bohemian basin (1990)
    Springer
    Details
    Publication Date: 1990-07-01
    Print ISSN: 0039-3169
    Electronic ISSN: 1573-1626
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Published by Springer
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  • 10
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    The optimal shape design method applied to modelling thermal thinning of the oceanic lithosphere near hot spots (1986)
    Springer
    Details
    Publication Date: 1986-12-01
    Print ISSN: 0039-3169
    Electronic ISSN: 1573-1626
    Topics: Architecture, Civil Engineering, Surveying , Geosciences , Physics
    Published by Springer
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