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  • 1
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    Ocean/atmosphere heat fluxes within the Agulhas Retroflection region (1988)
    American Geophysical Union
    In:  Journal of Geophysical Research, 93 (C12). pp. 15473-15483.
    Details
    Publication Date: 2020-11-18
    Description: The southern section of the Agulhas western boundary current system exhibits unique characteristics as regards ocean/atmosphere heat flux processes. The Agulhas Retroflection region's high heat flux core from 37°S to 41°S, 16°E to 22°E does not demonstrate a distinct annual cycle of turbulent heat fluxes (latent and sensible) as is characteristic of its northern hemisphere counterparts. Rather, a weak semiannual heat flux cycle is found with maximum average losses during winter and summer (200 and 211 W/m2 ) and minimum losses during spring and autumn (185 and 162 W/m2 ). Upstream where the Agulhas Current is closer to land, winter heat losses exceed those of summer, but the differences are small. This behavior contrasts with that encountered at the poleward ends of northern hemisphere western boundary currents where winter heat fluxes are several times those of summer. The main reason for this difference is persistent westerly and southwesterly wind flow over the Agulhas Retroflection region throughout the year which ensures that cold, unsaturated maritime air repeatedly forces loss of heat from the ocean's surface. Spatial heat flux gradients associated with the Agulhas‐Subtropical Convergence surface temperature front are more pronounced in summer than in winter, indicating that cyclogenesis locally may be less seasonally dependent than in the northern hemisphere situation. Average oceanic cooling rates in the core region of the Retroflection, based on net heat flux calculations and a mixed surface layer of 75 m, range from 1.35°C/month during winter to 0.25°C/month during summer. Interannual variability in ocean/atmosphere heat fluxes within the Agulhas Retroflection region often exceeds the variability illustrated by the annual cycle. West of the Agulhas Retroflection core region, interannual sea surface temperature (SST) anomalies are more influential in the generation of heat flux anomalies by virtue of their large temporal variability. This high SST variability is primarily attributed to interannual changes in flux of Agulhas Current water into the southeast Atlantic Ocean. Oceanic heat loss within this warm water zone is an important modifying influence to both ocean and atmosphere, thus meriting further research.
    Type: Article , PeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 2
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    Computational Seismology and Geodynamics (1994)
    American Geophysical Union
    In:  London, American Geophysical Union, vol. 1, no. 3, pp. 632 pp., (ISBN-10: 1-84628-053-2, ISBN-13:978-1-84628-053-5, eISBN 1-84628-054-0, xx + 591 pp. + CD-ROM)
    Details
    Publication Date: 1994
    Keywords: Seismology ; GeodesyY ; Synthetic seismograms
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Effect of water on the experimental deformation of olivine (1972)
    American Geophysical Union
    In:  Professional Paper, Flow and Fracture of Rocks, Washington, D. C., American Geophysical Union, vol. 16, no. 16, pp. 109-115, (ISBN 0080419208)
    Details
    Publication Date: 1972
    Keywords: Fluids ; Physical properties of rocks ; Laboratory measurements ; Rock mechanics
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
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    The effect of finite bandwidth on seismic scaling relationships (1986)
    American Geophysical Union
    In:  Professional Paper, Earthquake Source Mechanics, Washington, D.C., American Geophysical Union, vol. 37, no. 16, pp. 275-283, (ISBN 0080419208)
    Details
    Publication Date: 1986
    Keywords: Spectrum ; Source parameters ; Seismology
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    BIBLIOGRAPHY SEISMOLOGY
  • 5
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    Seismic anisotropy, flow, and constitution of the upper mantle (1972)
    American Geophysical Union
    In:  Professional Paper, Flow and Fracture of Rocks, Washington, D. C., American Geophysical Union, vol. 16, no. 16, pp. 167-190, (ISBN 1-86239-165-3, vi + 330 pp.)
    Details
    Publication Date: 1972
    Keywords: Physical properties of rocks ; Seismology ; Anisotropy ; earth mantle ; ConvolutionE
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    BIBLIOGRAPHY SEISMOLOGY
  • 6
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    Seismicity modeling and earthquake prediction: A review (1994)
    American Geophysical Union
    In:  Professional Paper, Nonlinear Dynamics and Predictability of Geophysical Phenomena, Washington, American Geophysical Union, vol. 24, no. 231, pp. 7-13, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 1994
    Keywords: Modelling ; Earthquake precursor: prediction research ; Earthquake precursor: statistical anal. of seismicity ; criticality ; Review article ; Chaotic behaviour ; FractureT
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    BIBLIOGRAPHY SEISMOLOGY
  • 7
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    Chaos: A historical perspective (1994)
    American Geophysical Union
    In:  Bull., Polar Proj. OP-O3A4, Nonlinear Dynamics and Predictability of Geophysical Phenomena, Washington, American Geophysical Union, vol. 1, no. 4, pp. 1-5, (ISBN 0080419208)
    Details
    Publication Date: 1994
    Keywords: Review article ; Non-linear effects ; Chaotic behaviour
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    BIBLIOGRAPHY SEISMOLOGY
  • 8
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    Isotopic decay data (1995)
    American Geophysical Union
    In:  Professional Paper, Global Earth Physics: A Handbook of Physical Constants, Washington, American Geophysical Union, vol. 1, no. 16, pp. 271-282, (ISBN 0080419208)
    Details
    Publication Date: 1995
    Keywords: Review article ; radioactivity ; Handbook of geophysics ; Handbook of physics
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    BIBLIOGRAPHY SEISMOLOGY
  • 9
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    Rheology of rocks (1995)
    American Geophysical Union
    In:  Professional Paper, Rock Physics & Phase Relations - A Handbook of Physical Constants, Washington, D.C., American Geophysical Union, vol. 1002, no. 231, pp. 148-165, (ISBN 1-4020-1729-4)
    Details
    Publication Date: 1995
    Keywords: Rheology ; Inelastic ; Rock mechanics ; Physical properties of rocks ; Review article
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    BIBLIOGRAPHY SEISMOLOGY
  • 10
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    Dense seismograph array observations of earthquake rupture dynamics (1986)
    American Geophysical Union
    In:  Bull., Open-File Rept., Earthquake Source Mechanics, Washington, D.C., American Geophysical Union, vol. 37, no. 16, pp. 285-296, (ISBN 1-86239-165-3, vi + 330 pp.)
    Details
    Publication Date: 1986
    Keywords: Seismology ; Seismic networks ; Fracture ; Source
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    BIBLIOGRAPHY SEISMOLOGY
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