Stress-induced temporal variations in seismic anisotropy observed in microseismic data   总被引：2，自引：0，他引：2  

N. Teanby  J.-M. Kendall  R. H. Jones  O. Barkved 《Geophysical Journal International》2004,156(3):459-466

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A macroscale analysis of coastal steepening around the coast of England and Wales   总被引：1，自引：0，他引：1  

J A Taylor  A P Murdock  N I Pontee 《The Geographical journal》2004,170(3):179-188

Coastal steepening potentially presents an array of management issues in the form of financial implications of sea defence degradation, increased risk posed to the hinterland as wave attenuation is reduced, 'coastal squeeze' and statutory requirements in the light of the Habitats Directive. The extent to which coastal steepening has occurred throughout England and Wales has been investigated through use of a GIS and dataset based on historical Ordnance Survey map information. Data were collected along 1084 selected profile lines, positioned so as to be geomorphologically representative of the coast. Features recorded from each map year included the positions of mean high water (MHW) and mean low water (MLW), the relative movements of which infer changing intertidal gradients. The results presented in this paper are on a subject and scale not previously published. It is revealed that 61% of the coastline studied has experienced a tendency towards steepening. Of the remainder, 33% has flattened, and 6% has experienced no rotational movement. This tendency towards steepening has been the dominant movement on each of the west, south, and east coasts.  相似文献   

Seasonal and inter-annual relationships between vegetation and climate in central New Mexico, USA   总被引：8，自引：0，他引：8  

Jeremy L. Weiss  David S. Gutzler  Julia E. Allred Coonrod  Clifford N. Dahm 《Journal of Arid Environments》2004,57(4):507-534

Linear correlations between seasonal and inter-annual measures of meteorological variables and normalized difference vegetation index (NDVI) are calculated at six nearby yet distinct vegetation communities in semi-arid New Mexico, USA Monsoon season (June–September) precipitation shows considerable positive correlation with NDVI values from the contemporaneous summer, following spring, and following summer. Non-monsoon precipitation (October–May), temperature, and wind display both positive and negative correlations with NDVI values. These meteorological variables influence NDVI variability at different seasons and time lags. Thus vegetation responds to short-term climate variability in complex ways and serves as a source of memory for the climate system.  相似文献   

Rapid estimation of relative and absolute delay times across a network by adaptive stacking   总被引：6，自引：0，他引：6  

N. Rawlinson  B. L. N. Kennett 《Geophysical Journal International》2004,157(1):332-340

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Upper-mantle reflectors: modelling of seismic wavefield characteristics and tectonic implications     

T. M. Hansen  N. Balling 《Geophysical Journal International》2004,157(2):664-682

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Imaging the Dead Sea Transform with scattered seismic waves   总被引：2，自引：0，他引：2  

N. Maercklin  C. Haberland  T. Ryberg  M. Weber  Y. Bartov  the DESERT Group 《Geophysical Journal International》2004,158(1):179-186

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Complex kinematic rupture of the Mw 5.9, 1999 Athens earthquake as revealed by the joint inversion of regional seismological and SAR data     

D. Baumont  O. Scotti  F. Courboulex  N. Melis 《Geophysical Journal International》2004,158(3):1078-1087

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Magnitude calibration of north Indian earthquakes   总被引：13，自引：0，他引：13  

N. N. Ambraseys  J. Douglas 《Geophysical Journal International》2004,159(1):165-206

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The effect of seafloor topography on magnetotelluric fields: an analytical formulation confirmed with numerical results   总被引：1，自引：0，他引：1  

K. Schwalenberg  R. N. Edwards 《Geophysical Journal International》2004,159(2):607-621

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The Elusive AD 1826 Tsunami, South Westland, New Zealand   总被引：1，自引：0，他引：1  

James R. Gofr Andrew Wells  Catherine Chagu‐Goff  Scott L. Nichol  Robert J.N. Devoy 《New Zealand geographer》2004,60(2):28-39

In AD 1826 sealers reported earthquake and tsunami activity in Fiordland, although, contemporary or near‐contemporary accounts of tsunami inundation at the time are elusive. A detailed analysis of recent sediments from Okarito Lagoon builds on contextual evidence provided by earlier research concerning past tsunami inundation. Sedimentological, geochemical, micropalaeontological and geochronological data are used to determine palaeoenvironments before, during and after what was most probably tsunami inundation in AD 1826. The most compelling chronological control is provided fry a young cohort of trees growing on a raised shoreline bench stranded fry a drop in the lagoon water level following tsunami inundation.  相似文献