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PORTAIL D'INFORMATION GÉOGRAPHIQUE

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  • Geographical distribution of weather catastrophes in the United States
  • Années 1949-2008 ; Catastrophe ; Cyclone tropical ; Distribution spatiale ; Etats-Unis ; Tempête ; Type de temps ; Vulnérabilité
  • Catastrophe ; Spatial distribution ; Storm ; Tropical cyclone ; United States of America ; Vulnerability ; Weather type
  • The distributions of catastrophes and their losses were examined for the three 20-year periods during 1949-2008. The first period, 1949-1968, had fewer catastrophes in most regions than the two later periods. In six regions, average losses per
  • catastrophe were highest in the period 1949-1968, while average losses were highest in 1989-2008 in the Central, Southeast, and Southwest regions. In all but the Southwest region, average storm losses were lowest in the 1969-1988 period. The results reflect
  • spatial and temporal differences in the atmospheric conditions that cause catastrophic storm events. The shift to much higher losses in the Southeast since 1990 reflects recent enhancement of intense tropical storms. The nation's eastern half also had its
  • greatest number of catastrophes in this recent period. There is also evidence that these recent increases are a result of enhanced societal vulnerability to storm damages.
  • Années 1949-2008 ; Catastrophe ; Changement climatique ; Convection ; Dégât ; Etats-Unis ; Etats-Unis de l'Est ; Etats-Unis du Centre ; Grêle ; Tempête ; Tendance du climat ; Tornade ; Type de temps
  • Catastrophe ; Climatic change ; Climatic trend ; Convection ; Damage ; East Central United States ; Eastern United States ; Hail ; Storm ; Tornado ; United States of America ; Weather type
  • , and high winds. The most frequent catastrophes occurred in Texas, Oklahoma, Kansas, Illinois, and Missouri. The number of catastrophes occurring in only one state and in one climate region during 1949-2008 were least during 1999-2008, revealing that recent
  • catastrophes were of greater size than those occurring during 1949-1998. No long-term trend was evident. Catastrophe losses nationally fluctuated during 1949-1993, but thereafter increased systematically to a peak in 2004-2008. This upward trend in losses
  • reflects recent increases in catastrophe sizes in the Central, Southeast, and Northeast and reveals a recent intensification of storm-producing conditions in the eastern U.S.
  • Années 1949-2006 ; Catastrophe ; Distribution spatiale ; Dégât ; Etats-Unis ; Grêle ; Précipitation ; Risque climatique ; Risque naturel ; Variabilité interannuelle
  • Catastrophe ; Climatic hazard ; Damage ; Hail ; Interannual variability ; Natural hazards ; Precipitation ; Spatial distribution ; United States of America
  • Insurance data for hail damages to property during the period 1949-2006 were assessed to define the spatial and temporal distributions of losses in the United States. Assessment of the causes of catastrophes revealed that some were due just to hail
  • Années 1949-2006 ; Catastrophe ; Dégât ; Etats-Unis ; Orage ; Ouragan ; Précipitation ; Réchauffement climatique ; Type de temps ; Variabilité interannuelle ; Vulnérabilité
  • Catastrophe ; Climatic warming ; Damage ; Hurricane ; Interannual variability ; Precipitation ; Rainstorm ; United States of America ; Vulnerability ; Weather type