Publications

Search or filter publications

Filter by type:

Filter by publication type

Filter by year:

to

Results

  • Showing results for:
  • Reset all filters

Search results

  • Journal article
    Scherler D, Bookhagen B, Strecker MR, von Blanckenburg F, Rood Det al., 2010,

    Timing and extent of late Quaternary glaciation in the western Himalaya constrained by 10Be moraine dating in Garhwal, India

    , Quaternary Science Reviews, Vol: 29, Pages: 815-831, ISSN: 0277-3791

    Glacial chronologies from the Himalayan region indicate various degrees of asynchronous glacial behavior. Part of this has been related to different sensitivities of glaciers situated in contrasting climatic compartments of the orogen, but so far field data in support for this hypothesis is lacking. Here, we present a new <sup>10</sup>Be-derived glacial chronology for the upper Tons valley in western Garhwal, India, and initial results for the Pin and Thangi valleys in eastern Himachal Pradesh. These areas cover a steep gradient in orographic precipitation and allow testing for different climatic sensitivities. Our data provide a record of five glacial episodes at ∼16 ka, ∼11-12 ka, ∼8-9 ka, ∼5 ka, and <1 ka. In the Thangi valley, our results indicate a glacial episode at ∼19 ka, but no data are available for younger glacial deposits in this valley. At their largest mapped extent (∼16 ka), the two main glaciers in the upper Tons valley joined and descended down to ∼2500 m asl, which represents a drop of ∼1400 m compared to the present-day glacial extent. During the Holocene the two largest glaciers produced distinct glacial landforms that allowed us to reconstruct changes in the Equilibrium Line Altitude (ELA) over ∼20 km north-south distance that is presently associated with a steep gradient in rainfall. We observe that ELA-changes have been consistently ∼2 times higher for the glacier located in a presently wetter climate, pointing at different climate sensitivities, related to the amount of precipitation that they receive. At regional scale, our data is in reasonable agreement with other published glacial chronologies from the western Himalaya and suggest that glacial advances during the Holocene have been largely synchronous in this region. Comparison of glacial chronologies from the western Himalaya with other palaeoclimatic proxy data suggests that lon
  • Conference paper
    Rood DH, Hall S, Guilderson TP, Finkel RC, Brown TAet al., 2010,

    Challenges and opportunities in high-precision Be-10 measurements at CAMS

    , 11th International Conference on Accelerator Mass Spectrometry, Publisher: ELSEVIER SCIENCE BV, Pages: 730-732, ISSN: 0168-583X
  • Journal article
    Schulte P, Alegret L, Arenillas I, Arz JA, Barton PJ, Bown PR, Bralower TJ, Christeson GL, Claeys P, Cockell CS, Collins GS, Deutsch A, Goldin TJ, Goto K, Grajales-Nishimura JM, Grieve RAF, Gulick SPS, Johnson KR, Kiessling W, Koeberl C, Kring DA, MacLeod KG, Matsui T, Melosh J, Montanari A, Morgan JV, Neal CR, Nichols DJ, Norris RD, Pierazzo E, Ravizza G, Rebolledo-Vieyra M, Reimold WU, Robin E, Salge T, Speijer RP, Sweet AR, Urrutia-Fucugauchi J, Vajda V, Whalen MT, Willumsen PSet al., 2010,

    The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary

    , SCIENCE, Vol: 327, Pages: 1214-1218, ISSN: 0036-8075
    • Cite
    • Citations: 1087
  • Journal article
    Hieronymus CF, Goes S, 2010,

    Complex cratonic seismic structure from thermal models of the lithosphere: effects of variations in deep radiogenic heating

    , GEOPHYSICAL JOURNAL INTERNATIONAL, Vol: 180, Pages: 999-1012, ISSN: 0956-540X
  • Journal article
    MITCHELL AJ, ULIČNÝ D, HAMPSON GJ, ALLISON PA, GORMAN GJ, PIGGOTT MD, WELLS MR, PAIN CCet al., 2010,

    Modelling tidal current-induced bed shear stress and palaeocirculation in an epicontinental seaway: the Bohemian Cretaceous Basin, Central Europe

    , Sedimentology, Vol: 57, Pages: 359-388, ISSN: 0037-0746
  • Journal article
    Capitanio FA, Morra G, Goes S, Weinberg RF, Moresi Let al., 2010,

    India-Asia convergence driven by the subduction of the Greater Indian continent

    , NATURE GEOSCIENCE, Vol: 3, Pages: 136-139, ISSN: 1752-0894
  • Journal article
    Monroy R, Zdravkovic L, Ridley A, 2010,

    Evolution of microstructure in compacted London Clay during wetting and loading

    , GEOTECHNIQUE, Vol: 60, Pages: 105-119, ISSN: 0016-8505
  • Journal article
    TAGGART S, HAMPSON GJ, JACKSON MD, 2010,

    High-resolution stratigraphic architecture and lithological heterogeneity within marginal aeolian reservoir analogues

    , Sedimentology, ISSN: 0037-0746
  • Journal article
    Amos CB, Kelson KI, Rood DH, Simpson DT, Rose RSet al., 2010,

    Late quaternary slip rate on the Kern Canyon fault at Soda Spring, Tulare County, California

    , Lithosphere, Vol: 2, Pages: 411-417, ISSN: 1941-8264

    The Kern Canyon fault represents a major tectonic and physiographic boundary in the southern Sierra Nevada of east-central California. Previous investigations of the Kern Canyon fault underscore its importance as a Late Cretaceous and Neogene shear zone in the tectonic development of the southern Sierra Nevada. Study of the late Quaternary history of activity, however, has been confounded by the remote nature of the Kern Canyon fault and deep along-strike exhumation within the northern Kern River drainage, driven by focused fl uvial and glacial erosion. Recent acquisition of airborne lidar (light detection and ranging) topography along the ~140 km length of the Kern Canyon fault provides a comprehensive view of the active surface trace. High-resolution, lidar-derived digital elevation models (DEMs) for the northern Kern Canyon fault enable identifi cation of previously unrecognized offsets of late Quaternary moraines near Soda Spring (36.345°N, 118.408°W). Predominately north-striking fault scarps developed on the Soda Spring moraines display west-side-up displacement and lack a signifi cant sense of strike-slip separation, consistent with detailed mapping and trenching along the entire Kern Canyon fault. Scarp-normal topographic profi ling derived from the lidar DEMs suggests normal displacement of at least 2.8 +0.6/-0.5 m of the Tioga terminal moraine crest. Cosmogenic <sup>10</sup> Be exposure dating of Tioga moraine boulders yields a tight age cluster centered around 18.1 ± 0.5 ka (n = 6), indicating a minimum normal-sense fault slip rate of ~0.1-0.2 mm/yr over this period. Taken together, these results provide the fi rst clear documentation of late Quaternary activity on the Kern Canyon fault and highlight its role in accommodating internal deformation of the southern Sierra Nevada. © 2010 Geological Society of America.
  • Conference paper
    Yan H, Liu J-G, 2010,

    ENHANCED ROBUST PHASE CORRELATION BASED SUB-PIXEL FEATURE MATCHINIG FOR TARGET MOTION ESTIMATION

    , 2010 ISPRS Technical Commission III Symposium on Photogrammetry Computer Vision and Image Analysis, Pages: 76-79

    This paper presents an enhanced robust phase correlation (ERPC) algorithm for sub-pixel feature matching and its application intarget motion estimation for aerial video surveillance. The ERPC can cope with very large motion measurement on the one hand andimprove the sub-pixel accuracy by entirely avoiding the ill-posed problem of 2D phase unwrapping in 2D fitting technique of phasecorrelation on the other. The key advantage of EPRC is its robustness and sub-pixel accuracy which are essential for precise targetspeed measurement. Furthermore, EPRC is solely applied to the certain parts (not to the whole scene) of a scene where the movingtargets are detected, which greatly improves robustness and computing speed of the EPRC based target motion estimation. Finally,we introduce our robust camera compensation and moving target detection scheme. With this simple scheme, we are able toefficiently estimate the motions of multiple targets at sub-pixel accuracy.
  • Journal article
    Weller H, Ringler T, Piggott M, Wood Net al., 2010,

    CHALLENGES FACING ADAPTIVE MESH MODELING OF THE ATMOSPHERE AND OCEAN

    , BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, Vol: 91, Pages: 105-+, ISSN: 0003-0007
  • Conference paper
    Sgobba S, Stafford PJ, Marano GC, 2010,

    A scenario-compatible evolutionary model for the stochastic simulation of earthquake ground-motions

    , 14th European Conference on Earthquake Engineering
  • Conference paper
    Modica A, Stafford PJ, Bommer JJ, Crowley Het al., 2010,

    Estimates of demand in loss estimation made through the use of vectors of intensity measures

    , SECED - Society for Earthquake and Civil Engineering Dynamics, Young Engineers Conference
  • Conference paper
    Stafford PJ, Tsingopoulou E, Karimi I, Galy Het al., 2010,

    A seismic hazard module for earthquake loss modelling in Tunisia

    , EGU General Assembly 2010 - Geophysical Research Abstracts, Publisher: EGU
  • Conference paper
    Modica AM, Stafford PJ, Crowley H, 2010,

    Vector-valued seismic demand analysis within earthquake risk assessment

    , EGU General Assembly 2010 - Geophysical Research Abstracts
  • Conference paper
    Henrys SA, Sutherland R, Seward A, Hendersen M, Stern TA, Savage MK, Townend J, Mochizuki K, Sato H, Iwasaki T, Bassett D, Bell REet al., 2010,

    The 2009-2010 SAHKE Experiment: Acquisition and preliminary results across the interseismically locked southern Hikurangi margin, New Zealand

    , American Geophysical Union Fall Meeting
  • Conference paper
    Barker DH, Wallace LM, Bell RE, Henrys SAet al., 2010,

    Drilling at the northern Hikurangi subduction margin, New Zealand: The key to unlock the secrets of slip slip events

    , American Geophysical Union Fall Meeting
  • Journal article
    Mathias SA, Tsang C-F, Van Reeuwijk M, 2010,

    Investigation of hydromechanical processes during cyclic extraction recovery testing of a deformable rock fracture

    , INT J ROCK MECH MINING SCI
  • Conference paper
    Taborda D, Zdravkovic L, Kontoe S, Potts DMet al., 2010,

    Alternative formulations for cyclic nonlinear models: parametric study and comparative analyses

    , 7th European Conference on Numerical Methods in Geotechnical Engineering, Pages: 423-428

    The utilisation of cyclic nonlinear elastic models presents numerous advantages when analysingsimple dynamic problems, such as one-dimensional site response. This class of models requires a small numberof parameters to be determined and can efficiently reproduce the strain dependency of the secant shear stiffnessand hysteretic damping. However, it has been frequently noted that, for medium to large deformation levels, thepredicted damping ratio can be significantly larger than the values evaluated for most soils through laboratorytesting. To minimise the effects of this overestimation on the overall response of the system, which may lead tonon conservative results, different formulations have been proposed. In this paper, two alternative expressionsfor the stress-strain behaviour of soils – hyperbolic and logarithmic – are presented and their ability to reproducewell-established empirical stiffness degradation and damping ratio curves is assessed. Finally, the results of a setof dynamic finite element analyses of a one-dimensional wave propagation problem are presented to illustratethe impact of the different formulations on the engineering behaviour of soil deposits.
  • Conference paper
    Papaspiliou M, Kontoe S, Bommer J, 2010,

    Site Response Analysis Incorporated in Probabilistic Seismic Hazard Assessments

    , 9th US National and 10th Canadian Conference on Earthquake Engineering, Publisher: EERI

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://www.imperial.ac.uk:80/respub/WEB-INF/jsp/search-t4-html.jsp Request URI: /respub/WEB-INF/jsp/search-t4-html.jsp Query String: id=833&limit=20&page=32&respub-action=search.html Current Millis: 1783436059374 Current Time: Tue Jul 07 15:54:19 BST 2026